From 47296e79f889128e5b7838b2c92fe15d9e91b835 Mon Sep 17 00:00:00 2001 From: Tibor Vass Date: Sat, 22 Sep 2018 00:14:43 +0000 Subject: [PATCH] vendor: remove boltdb dependency which is superseded by bbolt This also brings in these PRs from swarmkit: - https://github.com/docker/swarmkit/pull/2691 - https://github.com/docker/swarmkit/pull/2744 - https://github.com/docker/swarmkit/pull/2732 - https://github.com/docker/swarmkit/pull/2729 - https://github.com/docker/swarmkit/pull/2748 Signed-off-by: Tibor Vass Upstream-commit: cce1763d57b5c8fc446b0863517bb5313e7e53be Component: engine --- .../engine/daemon/cluster/noderunner.go | 20 +- components/engine/vendor.conf | 12 +- .../vendor/github.com/boltdb/bolt/LICENSE | 20 - .../vendor/github.com/boltdb/bolt/README.md | 857 -------------- .../vendor/github.com/boltdb/bolt/bolt_386.go | 10 - .../github.com/boltdb/bolt/bolt_amd64.go | 10 - .../vendor/github.com/boltdb/bolt/bolt_arm.go | 28 - .../github.com/boltdb/bolt/bolt_arm64.go | 12 - .../github.com/boltdb/bolt/bolt_linux.go | 10 - .../github.com/boltdb/bolt/bolt_openbsd.go | 27 - .../vendor/github.com/boltdb/bolt/bolt_ppc.go | 9 - .../github.com/boltdb/bolt/bolt_ppc64.go | 9 - .../github.com/boltdb/bolt/bolt_ppc64le.go | 12 - .../github.com/boltdb/bolt/bolt_s390x.go | 12 - .../github.com/boltdb/bolt/bolt_unix.go | 89 -- .../boltdb/bolt/bolt_unix_solaris.go | 90 -- .../github.com/boltdb/bolt/bolt_windows.go | 144 --- .../github.com/boltdb/bolt/boltsync_unix.go | 8 - .../vendor/github.com/boltdb/bolt/bucket.go | 778 ------------- .../vendor/github.com/boltdb/bolt/cursor.go | 400 ------- .../vendor/github.com/boltdb/bolt/db.go | 1036 ----------------- .../vendor/github.com/boltdb/bolt/doc.go | 44 - .../vendor/github.com/boltdb/bolt/errors.go | 71 -- .../vendor/github.com/boltdb/bolt/freelist.go | 248 ---- .../vendor/github.com/boltdb/bolt/node.go | 604 ---------- .../vendor/github.com/boltdb/bolt/page.go | 178 --- .../vendor/github.com/boltdb/bolt/tx.go | 682 ----------- .../containerd/containerd/README.md | 3 +- .../api/services/content/v1/content.pb.go | 4 +- .../api/services/content/v1/content.proto | 2 +- .../api/services/events/v1/events.pb.go | 4 +- .../api/services/events/v1/events.proto | 2 +- .../archive/compression/compression.go | 88 +- .../containerd/containerd/cio/io.go | 9 + .../containerd/container_opts_unix.go | 58 - .../containerd/containerd/content/helpers.go | 6 +- .../containerd/content/local/store.go | 4 +- .../containerd/content/local/writer.go | 8 +- .../content/proxy/content_writer.go | 6 +- .../containerd/contrib/seccomp/seccomp.go | 2 +- .../containerd/events/exchange/exchange.go | 2 +- .../containerd/containerd/export.go | 58 + .../containerd/images/archive/importer.go | 254 ++++ .../containerd/images/archive/reference.go | 86 ++ .../containerd/images/importexport.go | 2 +- .../containerd/containerd/import.go | 160 ++- .../containerd/containerd/install.go | 41 +- .../containerd/containerd/install_opts.go | 9 + .../containerd/containerd/metadata/bolt.go | 2 +- .../containerd/metadata/boltutil/helpers.go | 2 +- .../containerd/containerd/metadata/buckets.go | 8 +- .../containerd/metadata/containers.go | 2 +- .../containerd/containerd/metadata/content.go | 17 +- .../containerd/containerd/metadata/db.go | 4 +- .../containerd/containerd/metadata/gc.go | 2 +- .../containerd/containerd/metadata/images.go | 2 +- .../containerd/containerd/metadata/leases.go | 2 +- .../containerd/metadata/migrations.go | 14 +- .../containerd/metadata/namespaces.go | 2 +- .../containerd/metadata/snapshot.go | 2 +- .../containerd/mount/mount_windows.go | 4 + .../containerd/containerd/oci/spec.go | 219 +++- .../containerd/containerd/oci/spec_opts.go | 914 ++++++++++++++- .../containerd/oci/spec_opts_unix.go | 733 ------------ .../containerd/oci/spec_opts_windows.go | 89 -- .../containerd/containerd/oci/spec_unix.go | 188 --- .../containerd/platforms/defaults.go | 5 - .../defaults_unix.go} | 32 +- .../defaults_windows.go} | 20 +- .../containerd/remotes/docker/fetcher.go | 2 +- .../remotes/docker/httpreadseeker.go | 2 +- .../remotes/docker/schema1/converter.go | 55 +- .../containerd/runtime/v1/linux/proc/exec.go | 2 +- .../runtime/v1/linux/proc/exec_state.go | 8 +- .../containerd/runtime/v1/linux/proc/init.go | 13 +- .../containerd/runtime/v1/linux/proc/io.go | 1 - .../containerd/runtime/v1/linux/runtime.go | 16 +- .../containerd/runtime/v1/linux/task.go | 5 +- .../containerd/runtime/v1/shim/service.go | 47 +- .../containerd/services/server/server.go | 2 +- .../containerd/containerd/sys/socket_unix.go | 2 +- .../github.com/containerd/containerd/task.go | 5 +- .../containerd/containerd/task_opts.go | 62 + .../{task_opts_linux.go => task_opts_unix.go} | 29 +- .../containerd/containerd/vendor.conf | 41 +- .../containerd/continuity/context.go | 657 +++++++++++ .../containerd/continuity/digests.go | 88 ++ .../continuity/driver/driver_unix.go | 13 - .../continuity/driver/lchmod_linux.go | 19 + .../continuity/driver/lchmod_unix.go | 14 + .../github.com/containerd/continuity/fs/du.go | 4 +- .../containerd/continuity/fs/du_unix.go | 8 +- .../containerd/continuity/fs/du_windows.go | 8 +- .../containerd/continuity/groups_unix.go | 113 ++ .../containerd/continuity/hardlinks.go | 57 + .../containerd/continuity/hardlinks_unix.go | 36 + .../continuity/hardlinks_windows.go | 12 + .../containerd/continuity/ioutils.go | 47 + .../containerd/continuity/manifest.go | 144 +++ .../containerd/continuity/proto/gen.go | 3 + .../continuity/proto/manifest.pb.go | 181 +++ .../continuity/proto/manifest.proto | 97 ++ .../containerd/continuity/resource.go | 574 +++++++++ .../containerd/continuity/resource_unix.go | 37 + .../containerd/continuity/resource_windows.go | 12 + .../containerd/continuity/sysx/README.md | 3 + .../containerd/continuity/sysx/asm.s | 10 - .../continuity/sysx/chmod_darwin.go | 18 - .../continuity/sysx/chmod_darwin_386.go | 25 - .../continuity/sysx/chmod_darwin_amd64.go | 25 - .../continuity/sysx/chmod_freebsd.go | 17 - .../continuity/sysx/chmod_freebsd_amd64.go | 25 - .../containerd/continuity/sysx/chmod_linux.go | 12 - .../continuity/sysx/chmod_solaris.go | 11 - .../containerd/continuity/sysx/sys.go | 37 - .../containerd/continuity/sysx/xattr.go | 48 +- .../continuity/sysx/xattr_darwin.go | 71 -- .../continuity/sysx/xattr_darwin_386.go | 111 -- .../continuity/sysx/xattr_darwin_amd64.go | 111 -- .../continuity/sysx/xattr_freebsd.go | 12 - .../containerd/continuity/sysx/xattr_linux.go | 44 - .../continuity/sysx/xattr_openbsd.go | 7 - .../continuity/sysx/xattr_solaris.go | 12 - .../continuity/sysx/xattr_unsupported.go | 9 +- .../containerd/continuity/vendor.conf | 2 +- .../vendor/github.com/containerd/cri/LICENSE | 201 ++++ .../github.com/containerd/cri/README.md | 176 +++ .../containerd/cri/pkg/util/deep_copy.go | 42 + .../github.com/containerd/cri/pkg/util/id.go | 29 + .../containerd/cri/pkg/util/image.go | 50 + .../containerd/cri/pkg/util/strings.go | 59 + .../github.com/containerd/cri/vendor.conf | 78 ++ .../github.com/containerd/go-runc/console.go | 2 + .../github.com/containerd/go-runc/io.go | 99 +- .../github.com/containerd/go-runc/io_unix.go | 76 ++ .../containerd/go-runc/io_windows.go | 62 + .../github.com/containerd/go-runc/runc.go | 3 +- .../vendor/github.com/docker/libkv/README.md | 6 +- .../docker/libkv/store/boltdb/boltdb.go | 2 +- .../docker/libkv/store/etcd/etcd.go | 174 ++- .../docker/swarmkit/agent/config.go | 2 +- .../docker/swarmkit/agent/session.go | 2 +- .../docker/swarmkit/agent/storage.go | 2 +- .../docker/swarmkit/agent/worker.go | 2 +- .../docker/swarmkit/api/specs.pb.go | 449 ++++--- .../docker/swarmkit/api/specs.proto | 17 +- .../docker/swarmkit/api/types.pb.go | 652 +++++------ .../docker/swarmkit/api/types.proto | 1 + .../swarmkit/manager/allocator/allocator.go | 21 +- .../allocator/cnmallocator/drivers_ipam.go | 15 +- .../cnmallocator/networkallocator.go | 14 +- .../swarmkit/manager/allocator/network.go | 10 +- .../swarmkit/manager/controlapi/cluster.go | 13 + .../swarmkit/manager/dispatcher/dispatcher.go | 40 +- .../docker/swarmkit/manager/manager.go | 35 +- .../github.com/docker/swarmkit/node/node.go | 14 +- .../github.com/docker/swarmkit/vendor.conf | 2 +- 157 files changed, 5878 insertions(+), 7989 deletions(-) delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/LICENSE delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/README.md delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/bolt_386.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/bolt_amd64.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/bolt_arm.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/bolt_arm64.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/bolt_linux.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/bolt_openbsd.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/bolt_ppc.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/bolt_ppc64.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/bolt_ppc64le.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/bolt_s390x.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/bolt_unix.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/bolt_unix_solaris.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/bolt_windows.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/boltsync_unix.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/bucket.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/cursor.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/db.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/doc.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/errors.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/freelist.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/node.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/page.go delete mode 100644 components/engine/vendor/github.com/boltdb/bolt/tx.go create mode 100644 components/engine/vendor/github.com/containerd/containerd/export.go create mode 100644 components/engine/vendor/github.com/containerd/containerd/images/archive/importer.go create mode 100644 components/engine/vendor/github.com/containerd/containerd/images/archive/reference.go delete mode 100644 components/engine/vendor/github.com/containerd/containerd/oci/spec_opts_unix.go delete mode 100644 components/engine/vendor/github.com/containerd/containerd/oci/spec_opts_windows.go delete mode 100644 components/engine/vendor/github.com/containerd/containerd/oci/spec_unix.go rename components/engine/vendor/github.com/containerd/containerd/{oci/spec_windows.go => platforms/defaults_unix.go} (54%) rename components/engine/vendor/github.com/containerd/containerd/{task_opts_windows.go => platforms/defaults_windows.go} (63%) rename components/engine/vendor/github.com/containerd/containerd/{task_opts_linux.go => task_opts_unix.go} (72%) create mode 100644 components/engine/vendor/github.com/containerd/continuity/context.go create mode 100644 components/engine/vendor/github.com/containerd/continuity/digests.go create mode 100644 components/engine/vendor/github.com/containerd/continuity/driver/lchmod_linux.go create mode 100644 components/engine/vendor/github.com/containerd/continuity/driver/lchmod_unix.go create mode 100644 components/engine/vendor/github.com/containerd/continuity/groups_unix.go create mode 100644 components/engine/vendor/github.com/containerd/continuity/hardlinks.go create mode 100644 components/engine/vendor/github.com/containerd/continuity/hardlinks_unix.go create mode 100644 components/engine/vendor/github.com/containerd/continuity/hardlinks_windows.go create mode 100644 components/engine/vendor/github.com/containerd/continuity/ioutils.go create mode 100644 components/engine/vendor/github.com/containerd/continuity/manifest.go create mode 100644 components/engine/vendor/github.com/containerd/continuity/proto/gen.go create mode 100644 components/engine/vendor/github.com/containerd/continuity/proto/manifest.pb.go create mode 100644 components/engine/vendor/github.com/containerd/continuity/proto/manifest.proto create mode 100644 components/engine/vendor/github.com/containerd/continuity/resource.go create mode 100644 components/engine/vendor/github.com/containerd/continuity/resource_unix.go create mode 100644 components/engine/vendor/github.com/containerd/continuity/resource_windows.go create mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/README.md delete mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/asm.s delete mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/chmod_darwin.go delete mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/chmod_darwin_386.go delete mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/chmod_darwin_amd64.go delete mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/chmod_freebsd.go delete mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/chmod_freebsd_amd64.go delete mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/chmod_linux.go delete mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/chmod_solaris.go delete mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/sys.go delete mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/xattr_darwin.go delete mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/xattr_darwin_386.go delete mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/xattr_darwin_amd64.go delete mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/xattr_freebsd.go delete mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/xattr_linux.go delete mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/xattr_openbsd.go delete mode 100644 components/engine/vendor/github.com/containerd/continuity/sysx/xattr_solaris.go create mode 100644 components/engine/vendor/github.com/containerd/cri/LICENSE create mode 100644 components/engine/vendor/github.com/containerd/cri/README.md create mode 100644 components/engine/vendor/github.com/containerd/cri/pkg/util/deep_copy.go create mode 100644 components/engine/vendor/github.com/containerd/cri/pkg/util/id.go create mode 100644 components/engine/vendor/github.com/containerd/cri/pkg/util/image.go create mode 100644 components/engine/vendor/github.com/containerd/cri/pkg/util/strings.go create mode 100644 components/engine/vendor/github.com/containerd/cri/vendor.conf create mode 100644 components/engine/vendor/github.com/containerd/go-runc/io_unix.go create mode 100644 components/engine/vendor/github.com/containerd/go-runc/io_windows.go diff --git a/components/engine/daemon/cluster/noderunner.go b/components/engine/daemon/cluster/noderunner.go index f4746563d45..071d8af5a7b 100644 --- a/components/engine/daemon/cluster/noderunner.go +++ b/components/engine/daemon/cluster/noderunner.go @@ -3,7 +3,6 @@ package cluster // import "github.com/docker/docker/daemon/cluster" import ( "context" "fmt" - "net" "path/filepath" "runtime" "strings" @@ -14,6 +13,7 @@ import ( "github.com/docker/docker/daemon/cluster/executor/container" lncluster "github.com/docker/libnetwork/cluster" swarmapi "github.com/docker/swarmkit/api" + "github.com/docker/swarmkit/manager/allocator/cnmallocator" swarmnode "github.com/docker/swarmkit/node" "github.com/pkg/errors" "github.com/sirupsen/logrus" @@ -115,12 +115,6 @@ func (n *nodeRunner) start(conf nodeStartConfig) error { joinAddr = conf.RemoteAddr } - var defaultAddrPool []*net.IPNet - for _, address := range conf.DefaultAddressPool { - if _, b, err := net.ParseCIDR(address); err == nil { - defaultAddrPool = append(defaultAddrPool, b) - } - } // Hostname is not set here. Instead, it is obtained from // the node description that is reported periodically swarmnodeConfig := swarmnode.Config{ @@ -128,11 +122,13 @@ func (n *nodeRunner) start(conf nodeStartConfig) error { ListenControlAPI: control, ListenRemoteAPI: conf.ListenAddr, AdvertiseRemoteAPI: conf.AdvertiseAddr, - DefaultAddrPool: defaultAddrPool, - SubnetSize: int(conf.SubnetSize), - JoinAddr: joinAddr, - StateDir: n.cluster.root, - JoinToken: conf.joinToken, + NetworkConfig: &cnmallocator.NetworkConfig{ + DefaultAddrPool: conf.DefaultAddressPool, + SubnetSize: conf.SubnetSize, + }, + JoinAddr: joinAddr, + StateDir: n.cluster.root, + JoinToken: conf.joinToken, Executor: container.NewExecutor( n.cluster.config.Backend, n.cluster.config.PluginBackend, diff --git a/components/engine/vendor.conf b/components/engine/vendor.conf index 8f0e803d77d..ebebbcb0269 100644 --- a/components/engine/vendor.conf +++ b/components/engine/vendor.conf @@ -47,7 +47,7 @@ github.com/sean-/seed e2103e2c35297fb7e17febb81e49b312087a2372 github.com/hashicorp/go-sockaddr 6d291a969b86c4b633730bfc6b8b9d64c3aafed9 github.com/hashicorp/go-multierror fcdddc395df1ddf4247c69bd436e84cfa0733f7e github.com/hashicorp/serf 598c54895cc5a7b1a24a398d635e8c0ea0959870 -github.com/docker/libkv 1d8431073ae03cdaedb198a89722f3aab6d418ef +github.com/docker/libkv 458977154600b9f23984d9f4b82e79570b5ae12b github.com/vishvananda/netns 604eaf189ee867d8c147fafc28def2394e878d25 github.com/vishvananda/netlink b2de5d10e38ecce8607e6b438b6d174f389a004e @@ -59,7 +59,6 @@ github.com/coreos/etcd v3.2.1 github.com/coreos/go-semver v0.2.0 github.com/ugorji/go f1f1a805ed361a0e078bb537e4ea78cd37dcf065 github.com/hashicorp/consul v0.5.2 -github.com/boltdb/bolt fff57c100f4dea1905678da7e90d92429dff2904 github.com/miekg/dns v1.0.7 github.com/ishidawataru/sctp 07191f837fedd2f13d1ec7b5f885f0f3ec54b1cb go.etcd.io/bbolt v1.3.1-etcd.8 @@ -115,18 +114,19 @@ github.com/googleapis/gax-go v2.0.0 google.golang.org/genproto 694d95ba50e67b2e363f3483057db5d4910c18f9 # containerd -github.com/containerd/containerd v1.2.0-beta.2 +github.com/containerd/containerd v1.2.0-rc.0 github.com/containerd/fifo 3d5202aec260678c48179c56f40e6f38a095738c -github.com/containerd/continuity d3c23511c1bf5851696cba83143d9cbcd666869b +github.com/containerd/continuity f44b615e492bdfb371aae2f76ec694d9da1db537 github.com/containerd/cgroups 5e610833b72089b37d0e615de9a92dfc043757c2 github.com/containerd/console c12b1e7919c14469339a5d38f2f8ed9b64a9de23 -github.com/containerd/go-runc edcf3de1f4971445c42d61f20d506b30612aa031 +github.com/containerd/go-runc 5a6d9f37cfa36b15efba46dc7ea349fa9b7143c3 github.com/containerd/typeurl a93fcdb778cd272c6e9b3028b2f42d813e785d40 github.com/containerd/ttrpc 94dde388801693c54f88a6596f713b51a8b30b2d github.com/gogo/googleapis 08a7655d27152912db7aaf4f983275eaf8d128ef +github.com/containerd/cri 9f39e3289533fc228c5e5fcac0a6dbdd60c6047b # release/1.2 branch # cluster -github.com/docker/swarmkit cfa742c8abe6f8e922f6e4e920153c408e7d9c3b +github.com/docker/swarmkit 3044c576a8a970d3079492b585054f29e96e27f1 github.com/gogo/protobuf v1.0.0 github.com/cloudflare/cfssl 1.3.2 github.com/fernet/fernet-go 1b2437bc582b3cfbb341ee5a29f8ef5b42912ff2 diff --git a/components/engine/vendor/github.com/boltdb/bolt/LICENSE b/components/engine/vendor/github.com/boltdb/bolt/LICENSE deleted file mode 100644 index 004e77fe5d2..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/LICENSE +++ /dev/null @@ -1,20 +0,0 @@ -The MIT License (MIT) - -Copyright (c) 2013 Ben Johnson - -Permission is hereby granted, free of charge, to any person obtaining a copy of -this software and associated documentation files (the "Software"), to deal in -the Software without restriction, including without limitation the rights to -use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of -the Software, and to permit persons to whom the Software is furnished to do so, -subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS -FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR -COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER -IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/components/engine/vendor/github.com/boltdb/bolt/README.md b/components/engine/vendor/github.com/boltdb/bolt/README.md deleted file mode 100644 index 2a69d95e78a..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/README.md +++ /dev/null @@ -1,857 +0,0 @@ -Bolt [![Coverage Status](https://coveralls.io/repos/boltdb/bolt/badge.svg?branch=master)](https://coveralls.io/r/boltdb/bolt?branch=master) [![GoDoc](https://godoc.org/github.com/boltdb/bolt?status.svg)](https://godoc.org/github.com/boltdb/bolt) ![Version](https://img.shields.io/badge/version-1.2.1-green.svg) -==== - -Bolt is a pure Go key/value store inspired by [Howard Chu's][hyc_symas] -[LMDB project][lmdb]. The goal of the project is to provide a simple, -fast, and reliable database for projects that don't require a full database -server such as Postgres or MySQL. - -Since Bolt is meant to be used as such a low-level piece of functionality, -simplicity is key. The API will be small and only focus on getting values -and setting values. That's it. - -[hyc_symas]: https://twitter.com/hyc_symas -[lmdb]: http://symas.com/mdb/ - -## Project Status - -Bolt is stable, the API is fixed, and the file format is fixed. Full unit -test coverage and randomized black box testing are used to ensure database -consistency and thread safety. Bolt is currently in high-load production -environments serving databases as large as 1TB. Many companies such as -Shopify and Heroku use Bolt-backed services every day. - -## Table of Contents - -- [Getting Started](#getting-started) - - [Installing](#installing) - - [Opening a database](#opening-a-database) - - [Transactions](#transactions) - - [Read-write transactions](#read-write-transactions) - - [Read-only transactions](#read-only-transactions) - - [Batch read-write transactions](#batch-read-write-transactions) - - [Managing transactions manually](#managing-transactions-manually) - - [Using buckets](#using-buckets) - - [Using key/value pairs](#using-keyvalue-pairs) - - [Autoincrementing integer for the bucket](#autoincrementing-integer-for-the-bucket) - - [Iterating over keys](#iterating-over-keys) - - [Prefix scans](#prefix-scans) - - [Range scans](#range-scans) - - [ForEach()](#foreach) - - [Nested buckets](#nested-buckets) - - [Database backups](#database-backups) - - [Statistics](#statistics) - - [Read-Only Mode](#read-only-mode) - - [Mobile Use (iOS/Android)](#mobile-use-iosandroid) -- [Resources](#resources) -- [Comparison with other databases](#comparison-with-other-databases) - - [Postgres, MySQL, & other relational databases](#postgres-mysql--other-relational-databases) - - [LevelDB, RocksDB](#leveldb-rocksdb) - - [LMDB](#lmdb) -- [Caveats & Limitations](#caveats--limitations) -- [Reading the Source](#reading-the-source) -- [Other Projects Using Bolt](#other-projects-using-bolt) - -## Getting Started - -### Installing - -To start using Bolt, install Go and run `go get`: - -```sh -$ go get github.com/boltdb/bolt/... -``` - -This will retrieve the library and install the `bolt` command line utility into -your `$GOBIN` path. - - -### Opening a database - -The top-level object in Bolt is a `DB`. It is represented as a single file on -your disk and represents a consistent snapshot of your data. - -To open your database, simply use the `bolt.Open()` function: - -```go -package main - -import ( - "log" - - "github.com/boltdb/bolt" -) - -func main() { - // Open the my.db data file in your current directory. - // It will be created if it doesn't exist. - db, err := bolt.Open("my.db", 0600, nil) - if err != nil { - log.Fatal(err) - } - defer db.Close() - - ... -} -``` - -Please note that Bolt obtains a file lock on the data file so multiple processes -cannot open the same database at the same time. Opening an already open Bolt -database will cause it to hang until the other process closes it. To prevent -an indefinite wait you can pass a timeout option to the `Open()` function: - -```go -db, err := bolt.Open("my.db", 0600, &bolt.Options{Timeout: 1 * time.Second}) -``` - - -### Transactions - -Bolt allows only one read-write transaction at a time but allows as many -read-only transactions as you want at a time. Each transaction has a consistent -view of the data as it existed when the transaction started. - -Individual transactions and all objects created from them (e.g. buckets, keys) -are not thread safe. To work with data in multiple goroutines you must start -a transaction for each one or use locking to ensure only one goroutine accesses -a transaction at a time. Creating transaction from the `DB` is thread safe. - -Read-only transactions and read-write transactions should not depend on one -another and generally shouldn't be opened simultaneously in the same goroutine. -This can cause a deadlock as the read-write transaction needs to periodically -re-map the data file but it cannot do so while a read-only transaction is open. - - -#### Read-write transactions - -To start a read-write transaction, you can use the `DB.Update()` function: - -```go -err := db.Update(func(tx *bolt.Tx) error { - ... - return nil -}) -``` - -Inside the closure, you have a consistent view of the database. You commit the -transaction by returning `nil` at the end. You can also rollback the transaction -at any point by returning an error. All database operations are allowed inside -a read-write transaction. - -Always check the return error as it will report any disk failures that can cause -your transaction to not complete. If you return an error within your closure -it will be passed through. - - -#### Read-only transactions - -To start a read-only transaction, you can use the `DB.View()` function: - -```go -err := db.View(func(tx *bolt.Tx) error { - ... - return nil -}) -``` - -You also get a consistent view of the database within this closure, however, -no mutating operations are allowed within a read-only transaction. You can only -retrieve buckets, retrieve values, and copy the database within a read-only -transaction. - - -#### Batch read-write transactions - -Each `DB.Update()` waits for disk to commit the writes. This overhead -can be minimized by combining multiple updates with the `DB.Batch()` -function: - -```go -err := db.Batch(func(tx *bolt.Tx) error { - ... - return nil -}) -``` - -Concurrent Batch calls are opportunistically combined into larger -transactions. Batch is only useful when there are multiple goroutines -calling it. - -The trade-off is that `Batch` can call the given -function multiple times, if parts of the transaction fail. The -function must be idempotent and side effects must take effect only -after a successful return from `DB.Batch()`. - -For example: don't display messages from inside the function, instead -set variables in the enclosing scope: - -```go -var id uint64 -err := db.Batch(func(tx *bolt.Tx) error { - // Find last key in bucket, decode as bigendian uint64, increment - // by one, encode back to []byte, and add new key. - ... - id = newValue - return nil -}) -if err != nil { - return ... -} -fmt.Println("Allocated ID %d", id) -``` - - -#### Managing transactions manually - -The `DB.View()` and `DB.Update()` functions are wrappers around the `DB.Begin()` -function. These helper functions will start the transaction, execute a function, -and then safely close your transaction if an error is returned. This is the -recommended way to use Bolt transactions. - -However, sometimes you may want to manually start and end your transactions. -You can use the `DB.Begin()` function directly but **please** be sure to close -the transaction. - -```go -// Start a writable transaction. -tx, err := db.Begin(true) -if err != nil { - return err -} -defer tx.Rollback() - -// Use the transaction... -_, err := tx.CreateBucket([]byte("MyBucket")) -if err != nil { - return err -} - -// Commit the transaction and check for error. -if err := tx.Commit(); err != nil { - return err -} -``` - -The first argument to `DB.Begin()` is a boolean stating if the transaction -should be writable. - - -### Using buckets - -Buckets are collections of key/value pairs within the database. All keys in a -bucket must be unique. You can create a bucket using the `DB.CreateBucket()` -function: - -```go -db.Update(func(tx *bolt.Tx) error { - b, err := tx.CreateBucket([]byte("MyBucket")) - if err != nil { - return fmt.Errorf("create bucket: %s", err) - } - return nil -}) -``` - -You can also create a bucket only if it doesn't exist by using the -`Tx.CreateBucketIfNotExists()` function. It's a common pattern to call this -function for all your top-level buckets after you open your database so you can -guarantee that they exist for future transactions. - -To delete a bucket, simply call the `Tx.DeleteBucket()` function. - - -### Using key/value pairs - -To save a key/value pair to a bucket, use the `Bucket.Put()` function: - -```go -db.Update(func(tx *bolt.Tx) error { - b := tx.Bucket([]byte("MyBucket")) - err := b.Put([]byte("answer"), []byte("42")) - return err -}) -``` - -This will set the value of the `"answer"` key to `"42"` in the `MyBucket` -bucket. To retrieve this value, we can use the `Bucket.Get()` function: - -```go -db.View(func(tx *bolt.Tx) error { - b := tx.Bucket([]byte("MyBucket")) - v := b.Get([]byte("answer")) - fmt.Printf("The answer is: %s\n", v) - return nil -}) -``` - -The `Get()` function does not return an error because its operation is -guaranteed to work (unless there is some kind of system failure). If the key -exists then it will return its byte slice value. If it doesn't exist then it -will return `nil`. It's important to note that you can have a zero-length value -set to a key which is different than the key not existing. - -Use the `Bucket.Delete()` function to delete a key from the bucket. - -Please note that values returned from `Get()` are only valid while the -transaction is open. If you need to use a value outside of the transaction -then you must use `copy()` to copy it to another byte slice. - - -### Autoincrementing integer for the bucket -By using the `NextSequence()` function, you can let Bolt determine a sequence -which can be used as the unique identifier for your key/value pairs. See the -example below. - -```go -// CreateUser saves u to the store. The new user ID is set on u once the data is persisted. -func (s *Store) CreateUser(u *User) error { - return s.db.Update(func(tx *bolt.Tx) error { - // Retrieve the users bucket. - // This should be created when the DB is first opened. - b := tx.Bucket([]byte("users")) - - // Generate ID for the user. - // This returns an error only if the Tx is closed or not writeable. - // That can't happen in an Update() call so I ignore the error check. - id, _ := b.NextSequence() - u.ID = int(id) - - // Marshal user data into bytes. - buf, err := json.Marshal(u) - if err != nil { - return err - } - - // Persist bytes to users bucket. - return b.Put(itob(u.ID), buf) - }) -} - -// itob returns an 8-byte big endian representation of v. -func itob(v int) []byte { - b := make([]byte, 8) - binary.BigEndian.PutUint64(b, uint64(v)) - return b -} - -type User struct { - ID int - ... -} -``` - -### Iterating over keys - -Bolt stores its keys in byte-sorted order within a bucket. This makes sequential -iteration over these keys extremely fast. To iterate over keys we'll use a -`Cursor`: - -```go -db.View(func(tx *bolt.Tx) error { - // Assume bucket exists and has keys - b := tx.Bucket([]byte("MyBucket")) - - c := b.Cursor() - - for k, v := c.First(); k != nil; k, v = c.Next() { - fmt.Printf("key=%s, value=%s\n", k, v) - } - - return nil -}) -``` - -The cursor allows you to move to a specific point in the list of keys and move -forward or backward through the keys one at a time. - -The following functions are available on the cursor: - -``` -First() Move to the first key. -Last() Move to the last key. -Seek() Move to a specific key. -Next() Move to the next key. -Prev() Move to the previous key. -``` - -Each of those functions has a return signature of `(key []byte, value []byte)`. -When you have iterated to the end of the cursor then `Next()` will return a -`nil` key. You must seek to a position using `First()`, `Last()`, or `Seek()` -before calling `Next()` or `Prev()`. If you do not seek to a position then -these functions will return a `nil` key. - -During iteration, if the key is non-`nil` but the value is `nil`, that means -the key refers to a bucket rather than a value. Use `Bucket.Bucket()` to -access the sub-bucket. - - -#### Prefix scans - -To iterate over a key prefix, you can combine `Seek()` and `bytes.HasPrefix()`: - -```go -db.View(func(tx *bolt.Tx) error { - // Assume bucket exists and has keys - c := tx.Bucket([]byte("MyBucket")).Cursor() - - prefix := []byte("1234") - for k, v := c.Seek(prefix); bytes.HasPrefix(k, prefix); k, v = c.Next() { - fmt.Printf("key=%s, value=%s\n", k, v) - } - - return nil -}) -``` - -#### Range scans - -Another common use case is scanning over a range such as a time range. If you -use a sortable time encoding such as RFC3339 then you can query a specific -date range like this: - -```go -db.View(func(tx *bolt.Tx) error { - // Assume our events bucket exists and has RFC3339 encoded time keys. - c := tx.Bucket([]byte("Events")).Cursor() - - // Our time range spans the 90's decade. - min := []byte("1990-01-01T00:00:00Z") - max := []byte("2000-01-01T00:00:00Z") - - // Iterate over the 90's. - for k, v := c.Seek(min); k != nil && bytes.Compare(k, max) <= 0; k, v = c.Next() { - fmt.Printf("%s: %s\n", k, v) - } - - return nil -}) -``` - -Note that, while RFC3339 is sortable, the Golang implementation of RFC3339Nano does not use a fixed number of digits after the decimal point and is therefore not sortable. - - -#### ForEach() - -You can also use the function `ForEach()` if you know you'll be iterating over -all the keys in a bucket: - -```go -db.View(func(tx *bolt.Tx) error { - // Assume bucket exists and has keys - b := tx.Bucket([]byte("MyBucket")) - - b.ForEach(func(k, v []byte) error { - fmt.Printf("key=%s, value=%s\n", k, v) - return nil - }) - return nil -}) -``` - -Please note that keys and values in `ForEach()` are only valid while -the transaction is open. If you need to use a key or value outside of -the transaction, you must use `copy()` to copy it to another byte -slice. - -### Nested buckets - -You can also store a bucket in a key to create nested buckets. The API is the -same as the bucket management API on the `DB` object: - -```go -func (*Bucket) CreateBucket(key []byte) (*Bucket, error) -func (*Bucket) CreateBucketIfNotExists(key []byte) (*Bucket, error) -func (*Bucket) DeleteBucket(key []byte) error -``` - - -### Database backups - -Bolt is a single file so it's easy to backup. You can use the `Tx.WriteTo()` -function to write a consistent view of the database to a writer. If you call -this from a read-only transaction, it will perform a hot backup and not block -your other database reads and writes. - -By default, it will use a regular file handle which will utilize the operating -system's page cache. See the [`Tx`](https://godoc.org/github.com/boltdb/bolt#Tx) -documentation for information about optimizing for larger-than-RAM datasets. - -One common use case is to backup over HTTP so you can use tools like `cURL` to -do database backups: - -```go -func BackupHandleFunc(w http.ResponseWriter, req *http.Request) { - err := db.View(func(tx *bolt.Tx) error { - w.Header().Set("Content-Type", "application/octet-stream") - w.Header().Set("Content-Disposition", `attachment; filename="my.db"`) - w.Header().Set("Content-Length", strconv.Itoa(int(tx.Size()))) - _, err := tx.WriteTo(w) - return err - }) - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - } -} -``` - -Then you can backup using this command: - -```sh -$ curl http://localhost/backup > my.db -``` - -Or you can open your browser to `http://localhost/backup` and it will download -automatically. - -If you want to backup to another file you can use the `Tx.CopyFile()` helper -function. - - -### Statistics - -The database keeps a running count of many of the internal operations it -performs so you can better understand what's going on. By grabbing a snapshot -of these stats at two points in time we can see what operations were performed -in that time range. - -For example, we could start a goroutine to log stats every 10 seconds: - -```go -go func() { - // Grab the initial stats. - prev := db.Stats() - - for { - // Wait for 10s. - time.Sleep(10 * time.Second) - - // Grab the current stats and diff them. - stats := db.Stats() - diff := stats.Sub(&prev) - - // Encode stats to JSON and print to STDERR. - json.NewEncoder(os.Stderr).Encode(diff) - - // Save stats for the next loop. - prev = stats - } -}() -``` - -It's also useful to pipe these stats to a service such as statsd for monitoring -or to provide an HTTP endpoint that will perform a fixed-length sample. - - -### Read-Only Mode - -Sometimes it is useful to create a shared, read-only Bolt database. To this, -set the `Options.ReadOnly` flag when opening your database. Read-only mode -uses a shared lock to allow multiple processes to read from the database but -it will block any processes from opening the database in read-write mode. - -```go -db, err := bolt.Open("my.db", 0666, &bolt.Options{ReadOnly: true}) -if err != nil { - log.Fatal(err) -} -``` - -### Mobile Use (iOS/Android) - -Bolt is able to run on mobile devices by leveraging the binding feature of the -[gomobile](https://github.com/golang/mobile) tool. Create a struct that will -contain your database logic and a reference to a `*bolt.DB` with a initializing -constructor that takes in a filepath where the database file will be stored. -Neither Android nor iOS require extra permissions or cleanup from using this method. - -```go -func NewBoltDB(filepath string) *BoltDB { - db, err := bolt.Open(filepath+"/demo.db", 0600, nil) - if err != nil { - log.Fatal(err) - } - - return &BoltDB{db} -} - -type BoltDB struct { - db *bolt.DB - ... -} - -func (b *BoltDB) Path() string { - return b.db.Path() -} - -func (b *BoltDB) Close() { - b.db.Close() -} -``` - -Database logic should be defined as methods on this wrapper struct. - -To initialize this struct from the native language (both platforms now sync -their local storage to the cloud. These snippets disable that functionality for the -database file): - -#### Android - -```java -String path; -if (android.os.Build.VERSION.SDK_INT >=android.os.Build.VERSION_CODES.LOLLIPOP){ - path = getNoBackupFilesDir().getAbsolutePath(); -} else{ - path = getFilesDir().getAbsolutePath(); -} -Boltmobiledemo.BoltDB boltDB = Boltmobiledemo.NewBoltDB(path) -``` - -#### iOS - -```objc -- (void)demo { - NSString* path = [NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, - NSUserDomainMask, - YES) objectAtIndex:0]; - GoBoltmobiledemoBoltDB * demo = GoBoltmobiledemoNewBoltDB(path); - [self addSkipBackupAttributeToItemAtPath:demo.path]; - //Some DB Logic would go here - [demo close]; -} - -- (BOOL)addSkipBackupAttributeToItemAtPath:(NSString *) filePathString -{ - NSURL* URL= [NSURL fileURLWithPath: filePathString]; - assert([[NSFileManager defaultManager] fileExistsAtPath: [URL path]]); - - NSError *error = nil; - BOOL success = [URL setResourceValue: [NSNumber numberWithBool: YES] - forKey: NSURLIsExcludedFromBackupKey error: &error]; - if(!success){ - NSLog(@"Error excluding %@ from backup %@", [URL lastPathComponent], error); - } - return success; -} - -``` - -## Resources - -For more information on getting started with Bolt, check out the following articles: - -* [Intro to BoltDB: Painless Performant Persistence](http://npf.io/2014/07/intro-to-boltdb-painless-performant-persistence/) by [Nate Finch](https://github.com/natefinch). -* [Bolt -- an embedded key/value database for Go](https://www.progville.com/go/bolt-embedded-db-golang/) by Progville - - -## Comparison with other databases - -### Postgres, MySQL, & other relational databases - -Relational databases structure data into rows and are only accessible through -the use of SQL. This approach provides flexibility in how you store and query -your data but also incurs overhead in parsing and planning SQL statements. Bolt -accesses all data by a byte slice key. This makes Bolt fast to read and write -data by key but provides no built-in support for joining values together. - -Most relational databases (with the exception of SQLite) are standalone servers -that run separately from your application. This gives your systems -flexibility to connect multiple application servers to a single database -server but also adds overhead in serializing and transporting data over the -network. Bolt runs as a library included in your application so all data access -has to go through your application's process. This brings data closer to your -application but limits multi-process access to the data. - - -### LevelDB, RocksDB - -LevelDB and its derivatives (RocksDB, HyperLevelDB) are similar to Bolt in that -they are libraries bundled into the application, however, their underlying -structure is a log-structured merge-tree (LSM tree). An LSM tree optimizes -random writes by using a write ahead log and multi-tiered, sorted files called -SSTables. Bolt uses a B+tree internally and only a single file. Both approaches -have trade-offs. - -If you require a high random write throughput (>10,000 w/sec) or you need to use -spinning disks then LevelDB could be a good choice. If your application is -read-heavy or does a lot of range scans then Bolt could be a good choice. - -One other important consideration is that LevelDB does not have transactions. -It supports batch writing of key/values pairs and it supports read snapshots -but it will not give you the ability to do a compare-and-swap operation safely. -Bolt supports fully serializable ACID transactions. - - -### LMDB - -Bolt was originally a port of LMDB so it is architecturally similar. Both use -a B+tree, have ACID semantics with fully serializable transactions, and support -lock-free MVCC using a single writer and multiple readers. - -The two projects have somewhat diverged. LMDB heavily focuses on raw performance -while Bolt has focused on simplicity and ease of use. For example, LMDB allows -several unsafe actions such as direct writes for the sake of performance. Bolt -opts to disallow actions which can leave the database in a corrupted state. The -only exception to this in Bolt is `DB.NoSync`. - -There are also a few differences in API. LMDB requires a maximum mmap size when -opening an `mdb_env` whereas Bolt will handle incremental mmap resizing -automatically. LMDB overloads the getter and setter functions with multiple -flags whereas Bolt splits these specialized cases into their own functions. - - -## Caveats & Limitations - -It's important to pick the right tool for the job and Bolt is no exception. -Here are a few things to note when evaluating and using Bolt: - -* Bolt is good for read intensive workloads. Sequential write performance is - also fast but random writes can be slow. You can use `DB.Batch()` or add a - write-ahead log to help mitigate this issue. - -* Bolt uses a B+tree internally so there can be a lot of random page access. - SSDs provide a significant performance boost over spinning disks. - -* Try to avoid long running read transactions. Bolt uses copy-on-write so - old pages cannot be reclaimed while an old transaction is using them. - -* Byte slices returned from Bolt are only valid during a transaction. Once the - transaction has been committed or rolled back then the memory they point to - can be reused by a new page or can be unmapped from virtual memory and you'll - see an `unexpected fault address` panic when accessing it. - -* Be careful when using `Bucket.FillPercent`. Setting a high fill percent for - buckets that have random inserts will cause your database to have very poor - page utilization. - -* Use larger buckets in general. Smaller buckets causes poor page utilization - once they become larger than the page size (typically 4KB). - -* Bulk loading a lot of random writes into a new bucket can be slow as the - page will not split until the transaction is committed. Randomly inserting - more than 100,000 key/value pairs into a single new bucket in a single - transaction is not advised. - -* Bolt uses a memory-mapped file so the underlying operating system handles the - caching of the data. Typically, the OS will cache as much of the file as it - can in memory and will release memory as needed to other processes. This means - that Bolt can show very high memory usage when working with large databases. - However, this is expected and the OS will release memory as needed. Bolt can - handle databases much larger than the available physical RAM, provided its - memory-map fits in the process virtual address space. It may be problematic - on 32-bits systems. - -* The data structures in the Bolt database are memory mapped so the data file - will be endian specific. This means that you cannot copy a Bolt file from a - little endian machine to a big endian machine and have it work. For most - users this is not a concern since most modern CPUs are little endian. - -* Because of the way pages are laid out on disk, Bolt cannot truncate data files - and return free pages back to the disk. Instead, Bolt maintains a free list - of unused pages within its data file. These free pages can be reused by later - transactions. This works well for many use cases as databases generally tend - to grow. However, it's important to note that deleting large chunks of data - will not allow you to reclaim that space on disk. - - For more information on page allocation, [see this comment][page-allocation]. - -[page-allocation]: https://github.com/boltdb/bolt/issues/308#issuecomment-74811638 - - -## Reading the Source - -Bolt is a relatively small code base (<3KLOC) for an embedded, serializable, -transactional key/value database so it can be a good starting point for people -interested in how databases work. - -The best places to start are the main entry points into Bolt: - -- `Open()` - Initializes the reference to the database. It's responsible for - creating the database if it doesn't exist, obtaining an exclusive lock on the - file, reading the meta pages, & memory-mapping the file. - -- `DB.Begin()` - Starts a read-only or read-write transaction depending on the - value of the `writable` argument. This requires briefly obtaining the "meta" - lock to keep track of open transactions. Only one read-write transaction can - exist at a time so the "rwlock" is acquired during the life of a read-write - transaction. - -- `Bucket.Put()` - Writes a key/value pair into a bucket. After validating the - arguments, a cursor is used to traverse the B+tree to the page and position - where they key & value will be written. Once the position is found, the bucket - materializes the underlying page and the page's parent pages into memory as - "nodes". These nodes are where mutations occur during read-write transactions. - These changes get flushed to disk during commit. - -- `Bucket.Get()` - Retrieves a key/value pair from a bucket. This uses a cursor - to move to the page & position of a key/value pair. During a read-only - transaction, the key and value data is returned as a direct reference to the - underlying mmap file so there's no allocation overhead. For read-write - transactions, this data may reference the mmap file or one of the in-memory - node values. - -- `Cursor` - This object is simply for traversing the B+tree of on-disk pages - or in-memory nodes. It can seek to a specific key, move to the first or last - value, or it can move forward or backward. The cursor handles the movement up - and down the B+tree transparently to the end user. - -- `Tx.Commit()` - Converts the in-memory dirty nodes and the list of free pages - into pages to be written to disk. Writing to disk then occurs in two phases. - First, the dirty pages are written to disk and an `fsync()` occurs. Second, a - new meta page with an incremented transaction ID is written and another - `fsync()` occurs. This two phase write ensures that partially written data - pages are ignored in the event of a crash since the meta page pointing to them - is never written. Partially written meta pages are invalidated because they - are written with a checksum. - -If you have additional notes that could be helpful for others, please submit -them via pull request. - - -## Other Projects Using Bolt - -Below is a list of public, open source projects that use Bolt: - -* [BoltDbWeb](https://github.com/evnix/boltdbweb) - A web based GUI for BoltDB files. -* [Operation Go: A Routine Mission](http://gocode.io) - An online programming game for Golang using Bolt for user accounts and a leaderboard. -* [Bazil](https://bazil.org/) - A file system that lets your data reside where it is most convenient for it to reside. -* [DVID](https://github.com/janelia-flyem/dvid) - Added Bolt as optional storage engine and testing it against Basho-tuned leveldb. -* [Skybox Analytics](https://github.com/skybox/skybox) - A standalone funnel analysis tool for web analytics. -* [Scuttlebutt](https://github.com/benbjohnson/scuttlebutt) - Uses Bolt to store and process all Twitter mentions of GitHub projects. -* [Wiki](https://github.com/peterhellberg/wiki) - A tiny wiki using Goji, BoltDB and Blackfriday. -* [ChainStore](https://github.com/pressly/chainstore) - Simple key-value interface to a variety of storage engines organized as a chain of operations. -* [MetricBase](https://github.com/msiebuhr/MetricBase) - Single-binary version of Graphite. -* [Gitchain](https://github.com/gitchain/gitchain) - Decentralized, peer-to-peer Git repositories aka "Git meets Bitcoin". -* [event-shuttle](https://github.com/sclasen/event-shuttle) - A Unix system service to collect and reliably deliver messages to Kafka. -* [ipxed](https://github.com/kelseyhightower/ipxed) - Web interface and api for ipxed. -* [BoltStore](https://github.com/yosssi/boltstore) - Session store using Bolt. -* [photosite/session](https://godoc.org/bitbucket.org/kardianos/photosite/session) - Sessions for a photo viewing site. -* [LedisDB](https://github.com/siddontang/ledisdb) - A high performance NoSQL, using Bolt as optional storage. -* [ipLocator](https://github.com/AndreasBriese/ipLocator) - A fast ip-geo-location-server using bolt with bloom filters. -* [cayley](https://github.com/google/cayley) - Cayley is an open-source graph database using Bolt as optional backend. -* [bleve](http://www.blevesearch.com/) - A pure Go search engine similar to ElasticSearch that uses Bolt as the default storage backend. -* [tentacool](https://github.com/optiflows/tentacool) - REST api server to manage system stuff (IP, DNS, Gateway...) on a linux server. -* [Seaweed File System](https://github.com/chrislusf/seaweedfs) - Highly scalable distributed key~file system with O(1) disk read. -* [InfluxDB](https://influxdata.com) - Scalable datastore for metrics, events, and real-time analytics. -* [Freehold](http://tshannon.bitbucket.org/freehold/) - An open, secure, and lightweight platform for your files and data. -* [Prometheus Annotation Server](https://github.com/oliver006/prom_annotation_server) - Annotation server for PromDash & Prometheus service monitoring system. -* [Consul](https://github.com/hashicorp/consul) - Consul is service discovery and configuration made easy. Distributed, highly available, and datacenter-aware. -* [Kala](https://github.com/ajvb/kala) - Kala is a modern job scheduler optimized to run on a single node. It is persistent, JSON over HTTP API, ISO 8601 duration notation, and dependent jobs. -* [drive](https://github.com/odeke-em/drive) - drive is an unofficial Google Drive command line client for \*NIX operating systems. -* [stow](https://github.com/djherbis/stow) - a persistence manager for objects - backed by boltdb. -* [buckets](https://github.com/joyrexus/buckets) - a bolt wrapper streamlining - simple tx and key scans. -* [mbuckets](https://github.com/abhigupta912/mbuckets) - A Bolt wrapper that allows easy operations on multi level (nested) buckets. -* [Request Baskets](https://github.com/darklynx/request-baskets) - A web service to collect arbitrary HTTP requests and inspect them via REST API or simple web UI, similar to [RequestBin](http://requestb.in/) service -* [Go Report Card](https://goreportcard.com/) - Go code quality report cards as a (free and open source) service. -* [Boltdb Boilerplate](https://github.com/bobintornado/boltdb-boilerplate) - Boilerplate wrapper around bolt aiming to make simple calls one-liners. -* [lru](https://github.com/crowdriff/lru) - Easy to use Bolt-backed Least-Recently-Used (LRU) read-through cache with chainable remote stores. -* [Storm](https://github.com/asdine/storm) - Simple and powerful ORM for BoltDB. -* [GoWebApp](https://github.com/josephspurrier/gowebapp) - A basic MVC web application in Go using BoltDB. -* [SimpleBolt](https://github.com/xyproto/simplebolt) - A simple way to use BoltDB. Deals mainly with strings. -* [Algernon](https://github.com/xyproto/algernon) - A HTTP/2 web server with built-in support for Lua. Uses BoltDB as the default database backend. -* [MuLiFS](https://github.com/dankomiocevic/mulifs) - Music Library Filesystem creates a filesystem to organise your music files. -* [GoShort](https://github.com/pankajkhairnar/goShort) - GoShort is a URL shortener written in Golang and BoltDB for persistent key/value storage and for routing it's using high performent HTTPRouter. -* [torrent](https://github.com/anacrolix/torrent) - Full-featured BitTorrent client package and utilities in Go. BoltDB is a storage backend in development. - -If you are using Bolt in a project please send a pull request to add it to the list. diff --git a/components/engine/vendor/github.com/boltdb/bolt/bolt_386.go b/components/engine/vendor/github.com/boltdb/bolt/bolt_386.go deleted file mode 100644 index 820d533c15f..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/bolt_386.go +++ /dev/null @@ -1,10 +0,0 @@ -package bolt - -// maxMapSize represents the largest mmap size supported by Bolt. -const maxMapSize = 0x7FFFFFFF // 2GB - -// maxAllocSize is the size used when creating array pointers. -const maxAllocSize = 0xFFFFFFF - -// Are unaligned load/stores broken on this arch? -var brokenUnaligned = false diff --git a/components/engine/vendor/github.com/boltdb/bolt/bolt_amd64.go b/components/engine/vendor/github.com/boltdb/bolt/bolt_amd64.go deleted file mode 100644 index 98fafdb47d8..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/bolt_amd64.go +++ /dev/null @@ -1,10 +0,0 @@ -package bolt - -// maxMapSize represents the largest mmap size supported by Bolt. -const maxMapSize = 0xFFFFFFFFFFFF // 256TB - -// maxAllocSize is the size used when creating array pointers. -const maxAllocSize = 0x7FFFFFFF - -// Are unaligned load/stores broken on this arch? -var brokenUnaligned = false diff --git a/components/engine/vendor/github.com/boltdb/bolt/bolt_arm.go b/components/engine/vendor/github.com/boltdb/bolt/bolt_arm.go deleted file mode 100644 index 7e5cb4b9412..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/bolt_arm.go +++ /dev/null @@ -1,28 +0,0 @@ -package bolt - -import "unsafe" - -// maxMapSize represents the largest mmap size supported by Bolt. -const maxMapSize = 0x7FFFFFFF // 2GB - -// maxAllocSize is the size used when creating array pointers. -const maxAllocSize = 0xFFFFFFF - -// Are unaligned load/stores broken on this arch? -var brokenUnaligned bool - -func init() { - // Simple check to see whether this arch handles unaligned load/stores - // correctly. - - // ARM9 and older devices require load/stores to be from/to aligned - // addresses. If not, the lower 2 bits are cleared and that address is - // read in a jumbled up order. - - // See http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.faqs/ka15414.html - - raw := [6]byte{0xfe, 0xef, 0x11, 0x22, 0x22, 0x11} - val := *(*uint32)(unsafe.Pointer(uintptr(unsafe.Pointer(&raw)) + 2)) - - brokenUnaligned = val != 0x11222211 -} diff --git a/components/engine/vendor/github.com/boltdb/bolt/bolt_arm64.go b/components/engine/vendor/github.com/boltdb/bolt/bolt_arm64.go deleted file mode 100644 index b26d84f91ba..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/bolt_arm64.go +++ /dev/null @@ -1,12 +0,0 @@ -// +build arm64 - -package bolt - -// maxMapSize represents the largest mmap size supported by Bolt. -const maxMapSize = 0xFFFFFFFFFFFF // 256TB - -// maxAllocSize is the size used when creating array pointers. -const maxAllocSize = 0x7FFFFFFF - -// Are unaligned load/stores broken on this arch? -var brokenUnaligned = false diff --git a/components/engine/vendor/github.com/boltdb/bolt/bolt_linux.go b/components/engine/vendor/github.com/boltdb/bolt/bolt_linux.go deleted file mode 100644 index 2b676661409..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/bolt_linux.go +++ /dev/null @@ -1,10 +0,0 @@ -package bolt - -import ( - "syscall" -) - -// fdatasync flushes written data to a file descriptor. -func fdatasync(db *DB) error { - return syscall.Fdatasync(int(db.file.Fd())) -} diff --git a/components/engine/vendor/github.com/boltdb/bolt/bolt_openbsd.go b/components/engine/vendor/github.com/boltdb/bolt/bolt_openbsd.go deleted file mode 100644 index 7058c3d734e..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/bolt_openbsd.go +++ /dev/null @@ -1,27 +0,0 @@ -package bolt - -import ( - "syscall" - "unsafe" -) - -const ( - msAsync = 1 << iota // perform asynchronous writes - msSync // perform synchronous writes - msInvalidate // invalidate cached data -) - -func msync(db *DB) error { - _, _, errno := syscall.Syscall(syscall.SYS_MSYNC, uintptr(unsafe.Pointer(db.data)), uintptr(db.datasz), msInvalidate) - if errno != 0 { - return errno - } - return nil -} - -func fdatasync(db *DB) error { - if db.data != nil { - return msync(db) - } - return db.file.Sync() -} diff --git a/components/engine/vendor/github.com/boltdb/bolt/bolt_ppc.go b/components/engine/vendor/github.com/boltdb/bolt/bolt_ppc.go deleted file mode 100644 index 645ddc3edc2..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/bolt_ppc.go +++ /dev/null @@ -1,9 +0,0 @@ -// +build ppc - -package bolt - -// maxMapSize represents the largest mmap size supported by Bolt. -const maxMapSize = 0x7FFFFFFF // 2GB - -// maxAllocSize is the size used when creating array pointers. -const maxAllocSize = 0xFFFFFFF diff --git a/components/engine/vendor/github.com/boltdb/bolt/bolt_ppc64.go b/components/engine/vendor/github.com/boltdb/bolt/bolt_ppc64.go deleted file mode 100644 index 2dc6be02e3e..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/bolt_ppc64.go +++ /dev/null @@ -1,9 +0,0 @@ -// +build ppc64 - -package bolt - -// maxMapSize represents the largest mmap size supported by Bolt. -const maxMapSize = 0xFFFFFFFFFFFF // 256TB - -// maxAllocSize is the size used when creating array pointers. -const maxAllocSize = 0x7FFFFFFF diff --git a/components/engine/vendor/github.com/boltdb/bolt/bolt_ppc64le.go b/components/engine/vendor/github.com/boltdb/bolt/bolt_ppc64le.go deleted file mode 100644 index 8c143bc5d19..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/bolt_ppc64le.go +++ /dev/null @@ -1,12 +0,0 @@ -// +build ppc64le - -package bolt - -// maxMapSize represents the largest mmap size supported by Bolt. -const maxMapSize = 0xFFFFFFFFFFFF // 256TB - -// maxAllocSize is the size used when creating array pointers. -const maxAllocSize = 0x7FFFFFFF - -// Are unaligned load/stores broken on this arch? -var brokenUnaligned = false diff --git a/components/engine/vendor/github.com/boltdb/bolt/bolt_s390x.go b/components/engine/vendor/github.com/boltdb/bolt/bolt_s390x.go deleted file mode 100644 index d7c39af9253..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/bolt_s390x.go +++ /dev/null @@ -1,12 +0,0 @@ -// +build s390x - -package bolt - -// maxMapSize represents the largest mmap size supported by Bolt. -const maxMapSize = 0xFFFFFFFFFFFF // 256TB - -// maxAllocSize is the size used when creating array pointers. -const maxAllocSize = 0x7FFFFFFF - -// Are unaligned load/stores broken on this arch? -var brokenUnaligned = false diff --git a/components/engine/vendor/github.com/boltdb/bolt/bolt_unix.go b/components/engine/vendor/github.com/boltdb/bolt/bolt_unix.go deleted file mode 100644 index cad62dda1e3..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/bolt_unix.go +++ /dev/null @@ -1,89 +0,0 @@ -// +build !windows,!plan9,!solaris - -package bolt - -import ( - "fmt" - "os" - "syscall" - "time" - "unsafe" -) - -// flock acquires an advisory lock on a file descriptor. -func flock(db *DB, mode os.FileMode, exclusive bool, timeout time.Duration) error { - var t time.Time - for { - // If we're beyond our timeout then return an error. - // This can only occur after we've attempted a flock once. - if t.IsZero() { - t = time.Now() - } else if timeout > 0 && time.Since(t) > timeout { - return ErrTimeout - } - flag := syscall.LOCK_SH - if exclusive { - flag = syscall.LOCK_EX - } - - // Otherwise attempt to obtain an exclusive lock. - err := syscall.Flock(int(db.file.Fd()), flag|syscall.LOCK_NB) - if err == nil { - return nil - } else if err != syscall.EWOULDBLOCK { - return err - } - - // Wait for a bit and try again. - time.Sleep(50 * time.Millisecond) - } -} - -// funlock releases an advisory lock on a file descriptor. -func funlock(db *DB) error { - return syscall.Flock(int(db.file.Fd()), syscall.LOCK_UN) -} - -// mmap memory maps a DB's data file. -func mmap(db *DB, sz int) error { - // Map the data file to memory. - b, err := syscall.Mmap(int(db.file.Fd()), 0, sz, syscall.PROT_READ, syscall.MAP_SHARED|db.MmapFlags) - if err != nil { - return err - } - - // Advise the kernel that the mmap is accessed randomly. - if err := madvise(b, syscall.MADV_RANDOM); err != nil { - return fmt.Errorf("madvise: %s", err) - } - - // Save the original byte slice and convert to a byte array pointer. - db.dataref = b - db.data = (*[maxMapSize]byte)(unsafe.Pointer(&b[0])) - db.datasz = sz - return nil -} - -// munmap unmaps a DB's data file from memory. -func munmap(db *DB) error { - // Ignore the unmap if we have no mapped data. - if db.dataref == nil { - return nil - } - - // Unmap using the original byte slice. - err := syscall.Munmap(db.dataref) - db.dataref = nil - db.data = nil - db.datasz = 0 - return err -} - -// NOTE: This function is copied from stdlib because it is not available on darwin. -func madvise(b []byte, advice int) (err error) { - _, _, e1 := syscall.Syscall(syscall.SYS_MADVISE, uintptr(unsafe.Pointer(&b[0])), uintptr(len(b)), uintptr(advice)) - if e1 != 0 { - err = e1 - } - return -} diff --git a/components/engine/vendor/github.com/boltdb/bolt/bolt_unix_solaris.go b/components/engine/vendor/github.com/boltdb/bolt/bolt_unix_solaris.go deleted file mode 100644 index 307bf2b3ee9..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/bolt_unix_solaris.go +++ /dev/null @@ -1,90 +0,0 @@ -package bolt - -import ( - "fmt" - "os" - "syscall" - "time" - "unsafe" - - "golang.org/x/sys/unix" -) - -// flock acquires an advisory lock on a file descriptor. -func flock(db *DB, mode os.FileMode, exclusive bool, timeout time.Duration) error { - var t time.Time - for { - // If we're beyond our timeout then return an error. - // This can only occur after we've attempted a flock once. - if t.IsZero() { - t = time.Now() - } else if timeout > 0 && time.Since(t) > timeout { - return ErrTimeout - } - var lock syscall.Flock_t - lock.Start = 0 - lock.Len = 0 - lock.Pid = 0 - lock.Whence = 0 - lock.Pid = 0 - if exclusive { - lock.Type = syscall.F_WRLCK - } else { - lock.Type = syscall.F_RDLCK - } - err := syscall.FcntlFlock(db.file.Fd(), syscall.F_SETLK, &lock) - if err == nil { - return nil - } else if err != syscall.EAGAIN { - return err - } - - // Wait for a bit and try again. - time.Sleep(50 * time.Millisecond) - } -} - -// funlock releases an advisory lock on a file descriptor. -func funlock(db *DB) error { - var lock syscall.Flock_t - lock.Start = 0 - lock.Len = 0 - lock.Type = syscall.F_UNLCK - lock.Whence = 0 - return syscall.FcntlFlock(uintptr(db.file.Fd()), syscall.F_SETLK, &lock) -} - -// mmap memory maps a DB's data file. -func mmap(db *DB, sz int) error { - // Map the data file to memory. - b, err := unix.Mmap(int(db.file.Fd()), 0, sz, syscall.PROT_READ, syscall.MAP_SHARED|db.MmapFlags) - if err != nil { - return err - } - - // Advise the kernel that the mmap is accessed randomly. - if err := unix.Madvise(b, syscall.MADV_RANDOM); err != nil { - return fmt.Errorf("madvise: %s", err) - } - - // Save the original byte slice and convert to a byte array pointer. - db.dataref = b - db.data = (*[maxMapSize]byte)(unsafe.Pointer(&b[0])) - db.datasz = sz - return nil -} - -// munmap unmaps a DB's data file from memory. -func munmap(db *DB) error { - // Ignore the unmap if we have no mapped data. - if db.dataref == nil { - return nil - } - - // Unmap using the original byte slice. - err := unix.Munmap(db.dataref) - db.dataref = nil - db.data = nil - db.datasz = 0 - return err -} diff --git a/components/engine/vendor/github.com/boltdb/bolt/bolt_windows.go b/components/engine/vendor/github.com/boltdb/bolt/bolt_windows.go deleted file mode 100644 index d538e6afd77..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/bolt_windows.go +++ /dev/null @@ -1,144 +0,0 @@ -package bolt - -import ( - "fmt" - "os" - "syscall" - "time" - "unsafe" -) - -// LockFileEx code derived from golang build filemutex_windows.go @ v1.5.1 -var ( - modkernel32 = syscall.NewLazyDLL("kernel32.dll") - procLockFileEx = modkernel32.NewProc("LockFileEx") - procUnlockFileEx = modkernel32.NewProc("UnlockFileEx") -) - -const ( - lockExt = ".lock" - - // see https://msdn.microsoft.com/en-us/library/windows/desktop/aa365203(v=vs.85).aspx - flagLockExclusive = 2 - flagLockFailImmediately = 1 - - // see https://msdn.microsoft.com/en-us/library/windows/desktop/ms681382(v=vs.85).aspx - errLockViolation syscall.Errno = 0x21 -) - -func lockFileEx(h syscall.Handle, flags, reserved, locklow, lockhigh uint32, ol *syscall.Overlapped) (err error) { - r, _, err := procLockFileEx.Call(uintptr(h), uintptr(flags), uintptr(reserved), uintptr(locklow), uintptr(lockhigh), uintptr(unsafe.Pointer(ol))) - if r == 0 { - return err - } - return nil -} - -func unlockFileEx(h syscall.Handle, reserved, locklow, lockhigh uint32, ol *syscall.Overlapped) (err error) { - r, _, err := procUnlockFileEx.Call(uintptr(h), uintptr(reserved), uintptr(locklow), uintptr(lockhigh), uintptr(unsafe.Pointer(ol)), 0) - if r == 0 { - return err - } - return nil -} - -// fdatasync flushes written data to a file descriptor. -func fdatasync(db *DB) error { - return db.file.Sync() -} - -// flock acquires an advisory lock on a file descriptor. -func flock(db *DB, mode os.FileMode, exclusive bool, timeout time.Duration) error { - // Create a separate lock file on windows because a process - // cannot share an exclusive lock on the same file. This is - // needed during Tx.WriteTo(). - f, err := os.OpenFile(db.path+lockExt, os.O_CREATE, mode) - if err != nil { - return err - } - db.lockfile = f - - var t time.Time - for { - // If we're beyond our timeout then return an error. - // This can only occur after we've attempted a flock once. - if t.IsZero() { - t = time.Now() - } else if timeout > 0 && time.Since(t) > timeout { - return ErrTimeout - } - - var flag uint32 = flagLockFailImmediately - if exclusive { - flag |= flagLockExclusive - } - - err := lockFileEx(syscall.Handle(db.lockfile.Fd()), flag, 0, 1, 0, &syscall.Overlapped{}) - if err == nil { - return nil - } else if err != errLockViolation { - return err - } - - // Wait for a bit and try again. - time.Sleep(50 * time.Millisecond) - } -} - -// funlock releases an advisory lock on a file descriptor. -func funlock(db *DB) error { - err := unlockFileEx(syscall.Handle(db.lockfile.Fd()), 0, 1, 0, &syscall.Overlapped{}) - db.lockfile.Close() - os.Remove(db.path+lockExt) - return err -} - -// mmap memory maps a DB's data file. -// Based on: https://github.com/edsrzf/mmap-go -func mmap(db *DB, sz int) error { - if !db.readOnly { - // Truncate the database to the size of the mmap. - if err := db.file.Truncate(int64(sz)); err != nil { - return fmt.Errorf("truncate: %s", err) - } - } - - // Open a file mapping handle. - sizelo := uint32(sz >> 32) - sizehi := uint32(sz) & 0xffffffff - h, errno := syscall.CreateFileMapping(syscall.Handle(db.file.Fd()), nil, syscall.PAGE_READONLY, sizelo, sizehi, nil) - if h == 0 { - return os.NewSyscallError("CreateFileMapping", errno) - } - - // Create the memory map. - addr, errno := syscall.MapViewOfFile(h, syscall.FILE_MAP_READ, 0, 0, uintptr(sz)) - if addr == 0 { - return os.NewSyscallError("MapViewOfFile", errno) - } - - // Close mapping handle. - if err := syscall.CloseHandle(syscall.Handle(h)); err != nil { - return os.NewSyscallError("CloseHandle", err) - } - - // Convert to a byte array. - db.data = ((*[maxMapSize]byte)(unsafe.Pointer(addr))) - db.datasz = sz - - return nil -} - -// munmap unmaps a pointer from a file. -// Based on: https://github.com/edsrzf/mmap-go -func munmap(db *DB) error { - if db.data == nil { - return nil - } - - addr := (uintptr)(unsafe.Pointer(&db.data[0])) - if err := syscall.UnmapViewOfFile(addr); err != nil { - return os.NewSyscallError("UnmapViewOfFile", err) - } - return nil -} diff --git a/components/engine/vendor/github.com/boltdb/bolt/boltsync_unix.go b/components/engine/vendor/github.com/boltdb/bolt/boltsync_unix.go deleted file mode 100644 index f50442523c3..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/boltsync_unix.go +++ /dev/null @@ -1,8 +0,0 @@ -// +build !windows,!plan9,!linux,!openbsd - -package bolt - -// fdatasync flushes written data to a file descriptor. -func fdatasync(db *DB) error { - return db.file.Sync() -} diff --git a/components/engine/vendor/github.com/boltdb/bolt/bucket.go b/components/engine/vendor/github.com/boltdb/bolt/bucket.go deleted file mode 100644 index 511ce72d337..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/bucket.go +++ /dev/null @@ -1,778 +0,0 @@ -package bolt - -import ( - "bytes" - "fmt" - "unsafe" -) - -const ( - // MaxKeySize is the maximum length of a key, in bytes. - MaxKeySize = 32768 - - // MaxValueSize is the maximum length of a value, in bytes. - MaxValueSize = (1 << 31) - 2 -) - -const ( - maxUint = ^uint(0) - minUint = 0 - maxInt = int(^uint(0) >> 1) - minInt = -maxInt - 1 -) - -const bucketHeaderSize = int(unsafe.Sizeof(bucket{})) - -const ( - minFillPercent = 0.1 - maxFillPercent = 1.0 -) - -// DefaultFillPercent is the percentage that split pages are filled. -// This value can be changed by setting Bucket.FillPercent. -const DefaultFillPercent = 0.5 - -// Bucket represents a collection of key/value pairs inside the database. -type Bucket struct { - *bucket - tx *Tx // the associated transaction - buckets map[string]*Bucket // subbucket cache - page *page // inline page reference - rootNode *node // materialized node for the root page. - nodes map[pgid]*node // node cache - - // Sets the threshold for filling nodes when they split. By default, - // the bucket will fill to 50% but it can be useful to increase this - // amount if you know that your write workloads are mostly append-only. - // - // This is non-persisted across transactions so it must be set in every Tx. - FillPercent float64 -} - -// bucket represents the on-file representation of a bucket. -// This is stored as the "value" of a bucket key. If the bucket is small enough, -// then its root page can be stored inline in the "value", after the bucket -// header. In the case of inline buckets, the "root" will be 0. -type bucket struct { - root pgid // page id of the bucket's root-level page - sequence uint64 // monotonically incrementing, used by NextSequence() -} - -// newBucket returns a new bucket associated with a transaction. -func newBucket(tx *Tx) Bucket { - var b = Bucket{tx: tx, FillPercent: DefaultFillPercent} - if tx.writable { - b.buckets = make(map[string]*Bucket) - b.nodes = make(map[pgid]*node) - } - return b -} - -// Tx returns the tx of the bucket. -func (b *Bucket) Tx() *Tx { - return b.tx -} - -// Root returns the root of the bucket. -func (b *Bucket) Root() pgid { - return b.root -} - -// Writable returns whether the bucket is writable. -func (b *Bucket) Writable() bool { - return b.tx.writable -} - -// Cursor creates a cursor associated with the bucket. -// The cursor is only valid as long as the transaction is open. -// Do not use a cursor after the transaction is closed. -func (b *Bucket) Cursor() *Cursor { - // Update transaction statistics. - b.tx.stats.CursorCount++ - - // Allocate and return a cursor. - return &Cursor{ - bucket: b, - stack: make([]elemRef, 0), - } -} - -// Bucket retrieves a nested bucket by name. -// Returns nil if the bucket does not exist. -// The bucket instance is only valid for the lifetime of the transaction. -func (b *Bucket) Bucket(name []byte) *Bucket { - if b.buckets != nil { - if child := b.buckets[string(name)]; child != nil { - return child - } - } - - // Move cursor to key. - c := b.Cursor() - k, v, flags := c.seek(name) - - // Return nil if the key doesn't exist or it is not a bucket. - if !bytes.Equal(name, k) || (flags&bucketLeafFlag) == 0 { - return nil - } - - // Otherwise create a bucket and cache it. - var child = b.openBucket(v) - if b.buckets != nil { - b.buckets[string(name)] = child - } - - return child -} - -// Helper method that re-interprets a sub-bucket value -// from a parent into a Bucket -func (b *Bucket) openBucket(value []byte) *Bucket { - var child = newBucket(b.tx) - - // If unaligned load/stores are broken on this arch and value is - // unaligned simply clone to an aligned byte array. - unaligned := brokenUnaligned && uintptr(unsafe.Pointer(&value[0]))&3 != 0 - - if unaligned { - value = cloneBytes(value) - } - - // If this is a writable transaction then we need to copy the bucket entry. - // Read-only transactions can point directly at the mmap entry. - if b.tx.writable && !unaligned { - child.bucket = &bucket{} - *child.bucket = *(*bucket)(unsafe.Pointer(&value[0])) - } else { - child.bucket = (*bucket)(unsafe.Pointer(&value[0])) - } - - // Save a reference to the inline page if the bucket is inline. - if child.root == 0 { - child.page = (*page)(unsafe.Pointer(&value[bucketHeaderSize])) - } - - return &child -} - -// CreateBucket creates a new bucket at the given key and returns the new bucket. -// Returns an error if the key already exists, if the bucket name is blank, or if the bucket name is too long. -// The bucket instance is only valid for the lifetime of the transaction. -func (b *Bucket) CreateBucket(key []byte) (*Bucket, error) { - if b.tx.db == nil { - return nil, ErrTxClosed - } else if !b.tx.writable { - return nil, ErrTxNotWritable - } else if len(key) == 0 { - return nil, ErrBucketNameRequired - } - - // Move cursor to correct position. - c := b.Cursor() - k, _, flags := c.seek(key) - - // Return an error if there is an existing key. - if bytes.Equal(key, k) { - if (flags & bucketLeafFlag) != 0 { - return nil, ErrBucketExists - } else { - return nil, ErrIncompatibleValue - } - } - - // Create empty, inline bucket. - var bucket = Bucket{ - bucket: &bucket{}, - rootNode: &node{isLeaf: true}, - FillPercent: DefaultFillPercent, - } - var value = bucket.write() - - // Insert into node. - key = cloneBytes(key) - c.node().put(key, key, value, 0, bucketLeafFlag) - - // Since subbuckets are not allowed on inline buckets, we need to - // dereference the inline page, if it exists. This will cause the bucket - // to be treated as a regular, non-inline bucket for the rest of the tx. - b.page = nil - - return b.Bucket(key), nil -} - -// CreateBucketIfNotExists creates a new bucket if it doesn't already exist and returns a reference to it. -// Returns an error if the bucket name is blank, or if the bucket name is too long. -// The bucket instance is only valid for the lifetime of the transaction. -func (b *Bucket) CreateBucketIfNotExists(key []byte) (*Bucket, error) { - child, err := b.CreateBucket(key) - if err == ErrBucketExists { - return b.Bucket(key), nil - } else if err != nil { - return nil, err - } - return child, nil -} - -// DeleteBucket deletes a bucket at the given key. -// Returns an error if the bucket does not exists, or if the key represents a non-bucket value. -func (b *Bucket) DeleteBucket(key []byte) error { - if b.tx.db == nil { - return ErrTxClosed - } else if !b.Writable() { - return ErrTxNotWritable - } - - // Move cursor to correct position. - c := b.Cursor() - k, _, flags := c.seek(key) - - // Return an error if bucket doesn't exist or is not a bucket. - if !bytes.Equal(key, k) { - return ErrBucketNotFound - } else if (flags & bucketLeafFlag) == 0 { - return ErrIncompatibleValue - } - - // Recursively delete all child buckets. - child := b.Bucket(key) - err := child.ForEach(func(k, v []byte) error { - if v == nil { - if err := child.DeleteBucket(k); err != nil { - return fmt.Errorf("delete bucket: %s", err) - } - } - return nil - }) - if err != nil { - return err - } - - // Remove cached copy. - delete(b.buckets, string(key)) - - // Release all bucket pages to freelist. - child.nodes = nil - child.rootNode = nil - child.free() - - // Delete the node if we have a matching key. - c.node().del(key) - - return nil -} - -// Get retrieves the value for a key in the bucket. -// Returns a nil value if the key does not exist or if the key is a nested bucket. -// The returned value is only valid for the life of the transaction. -func (b *Bucket) Get(key []byte) []byte { - k, v, flags := b.Cursor().seek(key) - - // Return nil if this is a bucket. - if (flags & bucketLeafFlag) != 0 { - return nil - } - - // If our target node isn't the same key as what's passed in then return nil. - if !bytes.Equal(key, k) { - return nil - } - return v -} - -// Put sets the value for a key in the bucket. -// If the key exist then its previous value will be overwritten. -// Supplied value must remain valid for the life of the transaction. -// Returns an error if the bucket was created from a read-only transaction, if the key is blank, if the key is too large, or if the value is too large. -func (b *Bucket) Put(key []byte, value []byte) error { - if b.tx.db == nil { - return ErrTxClosed - } else if !b.Writable() { - return ErrTxNotWritable - } else if len(key) == 0 { - return ErrKeyRequired - } else if len(key) > MaxKeySize { - return ErrKeyTooLarge - } else if int64(len(value)) > MaxValueSize { - return ErrValueTooLarge - } - - // Move cursor to correct position. - c := b.Cursor() - k, _, flags := c.seek(key) - - // Return an error if there is an existing key with a bucket value. - if bytes.Equal(key, k) && (flags&bucketLeafFlag) != 0 { - return ErrIncompatibleValue - } - - // Insert into node. - key = cloneBytes(key) - c.node().put(key, key, value, 0, 0) - - return nil -} - -// Delete removes a key from the bucket. -// If the key does not exist then nothing is done and a nil error is returned. -// Returns an error if the bucket was created from a read-only transaction. -func (b *Bucket) Delete(key []byte) error { - if b.tx.db == nil { - return ErrTxClosed - } else if !b.Writable() { - return ErrTxNotWritable - } - - // Move cursor to correct position. - c := b.Cursor() - _, _, flags := c.seek(key) - - // Return an error if there is already existing bucket value. - if (flags & bucketLeafFlag) != 0 { - return ErrIncompatibleValue - } - - // Delete the node if we have a matching key. - c.node().del(key) - - return nil -} - -// Sequence returns the current integer for the bucket without incrementing it. -func (b *Bucket) Sequence() uint64 { return b.bucket.sequence } - -// SetSequence updates the sequence number for the bucket. -func (b *Bucket) SetSequence(v uint64) error { - if b.tx.db == nil { - return ErrTxClosed - } else if !b.Writable() { - return ErrTxNotWritable - } - - // Materialize the root node if it hasn't been already so that the - // bucket will be saved during commit. - if b.rootNode == nil { - _ = b.node(b.root, nil) - } - - // Increment and return the sequence. - b.bucket.sequence = v - return nil -} - -// NextSequence returns an autoincrementing integer for the bucket. -func (b *Bucket) NextSequence() (uint64, error) { - if b.tx.db == nil { - return 0, ErrTxClosed - } else if !b.Writable() { - return 0, ErrTxNotWritable - } - - // Materialize the root node if it hasn't been already so that the - // bucket will be saved during commit. - if b.rootNode == nil { - _ = b.node(b.root, nil) - } - - // Increment and return the sequence. - b.bucket.sequence++ - return b.bucket.sequence, nil -} - -// ForEach executes a function for each key/value pair in a bucket. -// If the provided function returns an error then the iteration is stopped and -// the error is returned to the caller. The provided function must not modify -// the bucket; this will result in undefined behavior. -func (b *Bucket) ForEach(fn func(k, v []byte) error) error { - if b.tx.db == nil { - return ErrTxClosed - } - c := b.Cursor() - for k, v := c.First(); k != nil; k, v = c.Next() { - if err := fn(k, v); err != nil { - return err - } - } - return nil -} - -// Stat returns stats on a bucket. -func (b *Bucket) Stats() BucketStats { - var s, subStats BucketStats - pageSize := b.tx.db.pageSize - s.BucketN += 1 - if b.root == 0 { - s.InlineBucketN += 1 - } - b.forEachPage(func(p *page, depth int) { - if (p.flags & leafPageFlag) != 0 { - s.KeyN += int(p.count) - - // used totals the used bytes for the page - used := pageHeaderSize - - if p.count != 0 { - // If page has any elements, add all element headers. - used += leafPageElementSize * int(p.count-1) - - // Add all element key, value sizes. - // The computation takes advantage of the fact that the position - // of the last element's key/value equals to the total of the sizes - // of all previous elements' keys and values. - // It also includes the last element's header. - lastElement := p.leafPageElement(p.count - 1) - used += int(lastElement.pos + lastElement.ksize + lastElement.vsize) - } - - if b.root == 0 { - // For inlined bucket just update the inline stats - s.InlineBucketInuse += used - } else { - // For non-inlined bucket update all the leaf stats - s.LeafPageN++ - s.LeafInuse += used - s.LeafOverflowN += int(p.overflow) - - // Collect stats from sub-buckets. - // Do that by iterating over all element headers - // looking for the ones with the bucketLeafFlag. - for i := uint16(0); i < p.count; i++ { - e := p.leafPageElement(i) - if (e.flags & bucketLeafFlag) != 0 { - // For any bucket element, open the element value - // and recursively call Stats on the contained bucket. - subStats.Add(b.openBucket(e.value()).Stats()) - } - } - } - } else if (p.flags & branchPageFlag) != 0 { - s.BranchPageN++ - lastElement := p.branchPageElement(p.count - 1) - - // used totals the used bytes for the page - // Add header and all element headers. - used := pageHeaderSize + (branchPageElementSize * int(p.count-1)) - - // Add size of all keys and values. - // Again, use the fact that last element's position equals to - // the total of key, value sizes of all previous elements. - used += int(lastElement.pos + lastElement.ksize) - s.BranchInuse += used - s.BranchOverflowN += int(p.overflow) - } - - // Keep track of maximum page depth. - if depth+1 > s.Depth { - s.Depth = (depth + 1) - } - }) - - // Alloc stats can be computed from page counts and pageSize. - s.BranchAlloc = (s.BranchPageN + s.BranchOverflowN) * pageSize - s.LeafAlloc = (s.LeafPageN + s.LeafOverflowN) * pageSize - - // Add the max depth of sub-buckets to get total nested depth. - s.Depth += subStats.Depth - // Add the stats for all sub-buckets - s.Add(subStats) - return s -} - -// forEachPage iterates over every page in a bucket, including inline pages. -func (b *Bucket) forEachPage(fn func(*page, int)) { - // If we have an inline page then just use that. - if b.page != nil { - fn(b.page, 0) - return - } - - // Otherwise traverse the page hierarchy. - b.tx.forEachPage(b.root, 0, fn) -} - -// forEachPageNode iterates over every page (or node) in a bucket. -// This also includes inline pages. -func (b *Bucket) forEachPageNode(fn func(*page, *node, int)) { - // If we have an inline page or root node then just use that. - if b.page != nil { - fn(b.page, nil, 0) - return - } - b._forEachPageNode(b.root, 0, fn) -} - -func (b *Bucket) _forEachPageNode(pgid pgid, depth int, fn func(*page, *node, int)) { - var p, n = b.pageNode(pgid) - - // Execute function. - fn(p, n, depth) - - // Recursively loop over children. - if p != nil { - if (p.flags & branchPageFlag) != 0 { - for i := 0; i < int(p.count); i++ { - elem := p.branchPageElement(uint16(i)) - b._forEachPageNode(elem.pgid, depth+1, fn) - } - } - } else { - if !n.isLeaf { - for _, inode := range n.inodes { - b._forEachPageNode(inode.pgid, depth+1, fn) - } - } - } -} - -// spill writes all the nodes for this bucket to dirty pages. -func (b *Bucket) spill() error { - // Spill all child buckets first. - for name, child := range b.buckets { - // If the child bucket is small enough and it has no child buckets then - // write it inline into the parent bucket's page. Otherwise spill it - // like a normal bucket and make the parent value a pointer to the page. - var value []byte - if child.inlineable() { - child.free() - value = child.write() - } else { - if err := child.spill(); err != nil { - return err - } - - // Update the child bucket header in this bucket. - value = make([]byte, unsafe.Sizeof(bucket{})) - var bucket = (*bucket)(unsafe.Pointer(&value[0])) - *bucket = *child.bucket - } - - // Skip writing the bucket if there are no materialized nodes. - if child.rootNode == nil { - continue - } - - // Update parent node. - var c = b.Cursor() - k, _, flags := c.seek([]byte(name)) - if !bytes.Equal([]byte(name), k) { - panic(fmt.Sprintf("misplaced bucket header: %x -> %x", []byte(name), k)) - } - if flags&bucketLeafFlag == 0 { - panic(fmt.Sprintf("unexpected bucket header flag: %x", flags)) - } - c.node().put([]byte(name), []byte(name), value, 0, bucketLeafFlag) - } - - // Ignore if there's not a materialized root node. - if b.rootNode == nil { - return nil - } - - // Spill nodes. - if err := b.rootNode.spill(); err != nil { - return err - } - b.rootNode = b.rootNode.root() - - // Update the root node for this bucket. - if b.rootNode.pgid >= b.tx.meta.pgid { - panic(fmt.Sprintf("pgid (%d) above high water mark (%d)", b.rootNode.pgid, b.tx.meta.pgid)) - } - b.root = b.rootNode.pgid - - return nil -} - -// inlineable returns true if a bucket is small enough to be written inline -// and if it contains no subbuckets. Otherwise returns false. -func (b *Bucket) inlineable() bool { - var n = b.rootNode - - // Bucket must only contain a single leaf node. - if n == nil || !n.isLeaf { - return false - } - - // Bucket is not inlineable if it contains subbuckets or if it goes beyond - // our threshold for inline bucket size. - var size = pageHeaderSize - for _, inode := range n.inodes { - size += leafPageElementSize + len(inode.key) + len(inode.value) - - if inode.flags&bucketLeafFlag != 0 { - return false - } else if size > b.maxInlineBucketSize() { - return false - } - } - - return true -} - -// Returns the maximum total size of a bucket to make it a candidate for inlining. -func (b *Bucket) maxInlineBucketSize() int { - return b.tx.db.pageSize / 4 -} - -// write allocates and writes a bucket to a byte slice. -func (b *Bucket) write() []byte { - // Allocate the appropriate size. - var n = b.rootNode - var value = make([]byte, bucketHeaderSize+n.size()) - - // Write a bucket header. - var bucket = (*bucket)(unsafe.Pointer(&value[0])) - *bucket = *b.bucket - - // Convert byte slice to a fake page and write the root node. - var p = (*page)(unsafe.Pointer(&value[bucketHeaderSize])) - n.write(p) - - return value -} - -// rebalance attempts to balance all nodes. -func (b *Bucket) rebalance() { - for _, n := range b.nodes { - n.rebalance() - } - for _, child := range b.buckets { - child.rebalance() - } -} - -// node creates a node from a page and associates it with a given parent. -func (b *Bucket) node(pgid pgid, parent *node) *node { - _assert(b.nodes != nil, "nodes map expected") - - // Retrieve node if it's already been created. - if n := b.nodes[pgid]; n != nil { - return n - } - - // Otherwise create a node and cache it. - n := &node{bucket: b, parent: parent} - if parent == nil { - b.rootNode = n - } else { - parent.children = append(parent.children, n) - } - - // Use the inline page if this is an inline bucket. - var p = b.page - if p == nil { - p = b.tx.page(pgid) - } - - // Read the page into the node and cache it. - n.read(p) - b.nodes[pgid] = n - - // Update statistics. - b.tx.stats.NodeCount++ - - return n -} - -// free recursively frees all pages in the bucket. -func (b *Bucket) free() { - if b.root == 0 { - return - } - - var tx = b.tx - b.forEachPageNode(func(p *page, n *node, _ int) { - if p != nil { - tx.db.freelist.free(tx.meta.txid, p) - } else { - n.free() - } - }) - b.root = 0 -} - -// dereference removes all references to the old mmap. -func (b *Bucket) dereference() { - if b.rootNode != nil { - b.rootNode.root().dereference() - } - - for _, child := range b.buckets { - child.dereference() - } -} - -// pageNode returns the in-memory node, if it exists. -// Otherwise returns the underlying page. -func (b *Bucket) pageNode(id pgid) (*page, *node) { - // Inline buckets have a fake page embedded in their value so treat them - // differently. We'll return the rootNode (if available) or the fake page. - if b.root == 0 { - if id != 0 { - panic(fmt.Sprintf("inline bucket non-zero page access(2): %d != 0", id)) - } - if b.rootNode != nil { - return nil, b.rootNode - } - return b.page, nil - } - - // Check the node cache for non-inline buckets. - if b.nodes != nil { - if n := b.nodes[id]; n != nil { - return nil, n - } - } - - // Finally lookup the page from the transaction if no node is materialized. - return b.tx.page(id), nil -} - -// BucketStats records statistics about resources used by a bucket. -type BucketStats struct { - // Page count statistics. - BranchPageN int // number of logical branch pages - BranchOverflowN int // number of physical branch overflow pages - LeafPageN int // number of logical leaf pages - LeafOverflowN int // number of physical leaf overflow pages - - // Tree statistics. - KeyN int // number of keys/value pairs - Depth int // number of levels in B+tree - - // Page size utilization. - BranchAlloc int // bytes allocated for physical branch pages - BranchInuse int // bytes actually used for branch data - LeafAlloc int // bytes allocated for physical leaf pages - LeafInuse int // bytes actually used for leaf data - - // Bucket statistics - BucketN int // total number of buckets including the top bucket - InlineBucketN int // total number on inlined buckets - InlineBucketInuse int // bytes used for inlined buckets (also accounted for in LeafInuse) -} - -func (s *BucketStats) Add(other BucketStats) { - s.BranchPageN += other.BranchPageN - s.BranchOverflowN += other.BranchOverflowN - s.LeafPageN += other.LeafPageN - s.LeafOverflowN += other.LeafOverflowN - s.KeyN += other.KeyN - if s.Depth < other.Depth { - s.Depth = other.Depth - } - s.BranchAlloc += other.BranchAlloc - s.BranchInuse += other.BranchInuse - s.LeafAlloc += other.LeafAlloc - s.LeafInuse += other.LeafInuse - - s.BucketN += other.BucketN - s.InlineBucketN += other.InlineBucketN - s.InlineBucketInuse += other.InlineBucketInuse -} - -// cloneBytes returns a copy of a given slice. -func cloneBytes(v []byte) []byte { - var clone = make([]byte, len(v)) - copy(clone, v) - return clone -} diff --git a/components/engine/vendor/github.com/boltdb/bolt/cursor.go b/components/engine/vendor/github.com/boltdb/bolt/cursor.go deleted file mode 100644 index 1be9f35e3ef..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/cursor.go +++ /dev/null @@ -1,400 +0,0 @@ -package bolt - -import ( - "bytes" - "fmt" - "sort" -) - -// Cursor represents an iterator that can traverse over all key/value pairs in a bucket in sorted order. -// Cursors see nested buckets with value == nil. -// Cursors can be obtained from a transaction and are valid as long as the transaction is open. -// -// Keys and values returned from the cursor are only valid for the life of the transaction. -// -// Changing data while traversing with a cursor may cause it to be invalidated -// and return unexpected keys and/or values. You must reposition your cursor -// after mutating data. -type Cursor struct { - bucket *Bucket - stack []elemRef -} - -// Bucket returns the bucket that this cursor was created from. -func (c *Cursor) Bucket() *Bucket { - return c.bucket -} - -// First moves the cursor to the first item in the bucket and returns its key and value. -// If the bucket is empty then a nil key and value are returned. -// The returned key and value are only valid for the life of the transaction. -func (c *Cursor) First() (key []byte, value []byte) { - _assert(c.bucket.tx.db != nil, "tx closed") - c.stack = c.stack[:0] - p, n := c.bucket.pageNode(c.bucket.root) - c.stack = append(c.stack, elemRef{page: p, node: n, index: 0}) - c.first() - - // If we land on an empty page then move to the next value. - // https://github.com/boltdb/bolt/issues/450 - if c.stack[len(c.stack)-1].count() == 0 { - c.next() - } - - k, v, flags := c.keyValue() - if (flags & uint32(bucketLeafFlag)) != 0 { - return k, nil - } - return k, v - -} - -// Last moves the cursor to the last item in the bucket and returns its key and value. -// If the bucket is empty then a nil key and value are returned. -// The returned key and value are only valid for the life of the transaction. -func (c *Cursor) Last() (key []byte, value []byte) { - _assert(c.bucket.tx.db != nil, "tx closed") - c.stack = c.stack[:0] - p, n := c.bucket.pageNode(c.bucket.root) - ref := elemRef{page: p, node: n} - ref.index = ref.count() - 1 - c.stack = append(c.stack, ref) - c.last() - k, v, flags := c.keyValue() - if (flags & uint32(bucketLeafFlag)) != 0 { - return k, nil - } - return k, v -} - -// Next moves the cursor to the next item in the bucket and returns its key and value. -// If the cursor is at the end of the bucket then a nil key and value are returned. -// The returned key and value are only valid for the life of the transaction. -func (c *Cursor) Next() (key []byte, value []byte) { - _assert(c.bucket.tx.db != nil, "tx closed") - k, v, flags := c.next() - if (flags & uint32(bucketLeafFlag)) != 0 { - return k, nil - } - return k, v -} - -// Prev moves the cursor to the previous item in the bucket and returns its key and value. -// If the cursor is at the beginning of the bucket then a nil key and value are returned. -// The returned key and value are only valid for the life of the transaction. -func (c *Cursor) Prev() (key []byte, value []byte) { - _assert(c.bucket.tx.db != nil, "tx closed") - - // Attempt to move back one element until we're successful. - // Move up the stack as we hit the beginning of each page in our stack. - for i := len(c.stack) - 1; i >= 0; i-- { - elem := &c.stack[i] - if elem.index > 0 { - elem.index-- - break - } - c.stack = c.stack[:i] - } - - // If we've hit the end then return nil. - if len(c.stack) == 0 { - return nil, nil - } - - // Move down the stack to find the last element of the last leaf under this branch. - c.last() - k, v, flags := c.keyValue() - if (flags & uint32(bucketLeafFlag)) != 0 { - return k, nil - } - return k, v -} - -// Seek moves the cursor to a given key and returns it. -// If the key does not exist then the next key is used. If no keys -// follow, a nil key is returned. -// The returned key and value are only valid for the life of the transaction. -func (c *Cursor) Seek(seek []byte) (key []byte, value []byte) { - k, v, flags := c.seek(seek) - - // If we ended up after the last element of a page then move to the next one. - if ref := &c.stack[len(c.stack)-1]; ref.index >= ref.count() { - k, v, flags = c.next() - } - - if k == nil { - return nil, nil - } else if (flags & uint32(bucketLeafFlag)) != 0 { - return k, nil - } - return k, v -} - -// Delete removes the current key/value under the cursor from the bucket. -// Delete fails if current key/value is a bucket or if the transaction is not writable. -func (c *Cursor) Delete() error { - if c.bucket.tx.db == nil { - return ErrTxClosed - } else if !c.bucket.Writable() { - return ErrTxNotWritable - } - - key, _, flags := c.keyValue() - // Return an error if current value is a bucket. - if (flags & bucketLeafFlag) != 0 { - return ErrIncompatibleValue - } - c.node().del(key) - - return nil -} - -// seek moves the cursor to a given key and returns it. -// If the key does not exist then the next key is used. -func (c *Cursor) seek(seek []byte) (key []byte, value []byte, flags uint32) { - _assert(c.bucket.tx.db != nil, "tx closed") - - // Start from root page/node and traverse to correct page. - c.stack = c.stack[:0] - c.search(seek, c.bucket.root) - ref := &c.stack[len(c.stack)-1] - - // If the cursor is pointing to the end of page/node then return nil. - if ref.index >= ref.count() { - return nil, nil, 0 - } - - // If this is a bucket then return a nil value. - return c.keyValue() -} - -// first moves the cursor to the first leaf element under the last page in the stack. -func (c *Cursor) first() { - for { - // Exit when we hit a leaf page. - var ref = &c.stack[len(c.stack)-1] - if ref.isLeaf() { - break - } - - // Keep adding pages pointing to the first element to the stack. - var pgid pgid - if ref.node != nil { - pgid = ref.node.inodes[ref.index].pgid - } else { - pgid = ref.page.branchPageElement(uint16(ref.index)).pgid - } - p, n := c.bucket.pageNode(pgid) - c.stack = append(c.stack, elemRef{page: p, node: n, index: 0}) - } -} - -// last moves the cursor to the last leaf element under the last page in the stack. -func (c *Cursor) last() { - for { - // Exit when we hit a leaf page. - ref := &c.stack[len(c.stack)-1] - if ref.isLeaf() { - break - } - - // Keep adding pages pointing to the last element in the stack. - var pgid pgid - if ref.node != nil { - pgid = ref.node.inodes[ref.index].pgid - } else { - pgid = ref.page.branchPageElement(uint16(ref.index)).pgid - } - p, n := c.bucket.pageNode(pgid) - - var nextRef = elemRef{page: p, node: n} - nextRef.index = nextRef.count() - 1 - c.stack = append(c.stack, nextRef) - } -} - -// next moves to the next leaf element and returns the key and value. -// If the cursor is at the last leaf element then it stays there and returns nil. -func (c *Cursor) next() (key []byte, value []byte, flags uint32) { - for { - // Attempt to move over one element until we're successful. - // Move up the stack as we hit the end of each page in our stack. - var i int - for i = len(c.stack) - 1; i >= 0; i-- { - elem := &c.stack[i] - if elem.index < elem.count()-1 { - elem.index++ - break - } - } - - // If we've hit the root page then stop and return. This will leave the - // cursor on the last element of the last page. - if i == -1 { - return nil, nil, 0 - } - - // Otherwise start from where we left off in the stack and find the - // first element of the first leaf page. - c.stack = c.stack[:i+1] - c.first() - - // If this is an empty page then restart and move back up the stack. - // https://github.com/boltdb/bolt/issues/450 - if c.stack[len(c.stack)-1].count() == 0 { - continue - } - - return c.keyValue() - } -} - -// search recursively performs a binary search against a given page/node until it finds a given key. -func (c *Cursor) search(key []byte, pgid pgid) { - p, n := c.bucket.pageNode(pgid) - if p != nil && (p.flags&(branchPageFlag|leafPageFlag)) == 0 { - panic(fmt.Sprintf("invalid page type: %d: %x", p.id, p.flags)) - } - e := elemRef{page: p, node: n} - c.stack = append(c.stack, e) - - // If we're on a leaf page/node then find the specific node. - if e.isLeaf() { - c.nsearch(key) - return - } - - if n != nil { - c.searchNode(key, n) - return - } - c.searchPage(key, p) -} - -func (c *Cursor) searchNode(key []byte, n *node) { - var exact bool - index := sort.Search(len(n.inodes), func(i int) bool { - // TODO(benbjohnson): Optimize this range search. It's a bit hacky right now. - // sort.Search() finds the lowest index where f() != -1 but we need the highest index. - ret := bytes.Compare(n.inodes[i].key, key) - if ret == 0 { - exact = true - } - return ret != -1 - }) - if !exact && index > 0 { - index-- - } - c.stack[len(c.stack)-1].index = index - - // Recursively search to the next page. - c.search(key, n.inodes[index].pgid) -} - -func (c *Cursor) searchPage(key []byte, p *page) { - // Binary search for the correct range. - inodes := p.branchPageElements() - - var exact bool - index := sort.Search(int(p.count), func(i int) bool { - // TODO(benbjohnson): Optimize this range search. It's a bit hacky right now. - // sort.Search() finds the lowest index where f() != -1 but we need the highest index. - ret := bytes.Compare(inodes[i].key(), key) - if ret == 0 { - exact = true - } - return ret != -1 - }) - if !exact && index > 0 { - index-- - } - c.stack[len(c.stack)-1].index = index - - // Recursively search to the next page. - c.search(key, inodes[index].pgid) -} - -// nsearch searches the leaf node on the top of the stack for a key. -func (c *Cursor) nsearch(key []byte) { - e := &c.stack[len(c.stack)-1] - p, n := e.page, e.node - - // If we have a node then search its inodes. - if n != nil { - index := sort.Search(len(n.inodes), func(i int) bool { - return bytes.Compare(n.inodes[i].key, key) != -1 - }) - e.index = index - return - } - - // If we have a page then search its leaf elements. - inodes := p.leafPageElements() - index := sort.Search(int(p.count), func(i int) bool { - return bytes.Compare(inodes[i].key(), key) != -1 - }) - e.index = index -} - -// keyValue returns the key and value of the current leaf element. -func (c *Cursor) keyValue() ([]byte, []byte, uint32) { - ref := &c.stack[len(c.stack)-1] - if ref.count() == 0 || ref.index >= ref.count() { - return nil, nil, 0 - } - - // Retrieve value from node. - if ref.node != nil { - inode := &ref.node.inodes[ref.index] - return inode.key, inode.value, inode.flags - } - - // Or retrieve value from page. - elem := ref.page.leafPageElement(uint16(ref.index)) - return elem.key(), elem.value(), elem.flags -} - -// node returns the node that the cursor is currently positioned on. -func (c *Cursor) node() *node { - _assert(len(c.stack) > 0, "accessing a node with a zero-length cursor stack") - - // If the top of the stack is a leaf node then just return it. - if ref := &c.stack[len(c.stack)-1]; ref.node != nil && ref.isLeaf() { - return ref.node - } - - // Start from root and traverse down the hierarchy. - var n = c.stack[0].node - if n == nil { - n = c.bucket.node(c.stack[0].page.id, nil) - } - for _, ref := range c.stack[:len(c.stack)-1] { - _assert(!n.isLeaf, "expected branch node") - n = n.childAt(int(ref.index)) - } - _assert(n.isLeaf, "expected leaf node") - return n -} - -// elemRef represents a reference to an element on a given page/node. -type elemRef struct { - page *page - node *node - index int -} - -// isLeaf returns whether the ref is pointing at a leaf page/node. -func (r *elemRef) isLeaf() bool { - if r.node != nil { - return r.node.isLeaf - } - return (r.page.flags & leafPageFlag) != 0 -} - -// count returns the number of inodes or page elements. -func (r *elemRef) count() int { - if r.node != nil { - return len(r.node.inodes) - } - return int(r.page.count) -} diff --git a/components/engine/vendor/github.com/boltdb/bolt/db.go b/components/engine/vendor/github.com/boltdb/bolt/db.go deleted file mode 100644 index 1223493ca7b..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/db.go +++ /dev/null @@ -1,1036 +0,0 @@ -package bolt - -import ( - "errors" - "fmt" - "hash/fnv" - "log" - "os" - "runtime" - "runtime/debug" - "strings" - "sync" - "time" - "unsafe" -) - -// The largest step that can be taken when remapping the mmap. -const maxMmapStep = 1 << 30 // 1GB - -// The data file format version. -const version = 2 - -// Represents a marker value to indicate that a file is a Bolt DB. -const magic uint32 = 0xED0CDAED - -// IgnoreNoSync specifies whether the NoSync field of a DB is ignored when -// syncing changes to a file. This is required as some operating systems, -// such as OpenBSD, do not have a unified buffer cache (UBC) and writes -// must be synchronized using the msync(2) syscall. -const IgnoreNoSync = runtime.GOOS == "openbsd" - -// Default values if not set in a DB instance. -const ( - DefaultMaxBatchSize int = 1000 - DefaultMaxBatchDelay = 10 * time.Millisecond - DefaultAllocSize = 16 * 1024 * 1024 -) - -// default page size for db is set to the OS page size. -var defaultPageSize = os.Getpagesize() - -// DB represents a collection of buckets persisted to a file on disk. -// All data access is performed through transactions which can be obtained through the DB. -// All the functions on DB will return a ErrDatabaseNotOpen if accessed before Open() is called. -type DB struct { - // When enabled, the database will perform a Check() after every commit. - // A panic is issued if the database is in an inconsistent state. This - // flag has a large performance impact so it should only be used for - // debugging purposes. - StrictMode bool - - // Setting the NoSync flag will cause the database to skip fsync() - // calls after each commit. This can be useful when bulk loading data - // into a database and you can restart the bulk load in the event of - // a system failure or database corruption. Do not set this flag for - // normal use. - // - // If the package global IgnoreNoSync constant is true, this value is - // ignored. See the comment on that constant for more details. - // - // THIS IS UNSAFE. PLEASE USE WITH CAUTION. - NoSync bool - - // When true, skips the truncate call when growing the database. - // Setting this to true is only safe on non-ext3/ext4 systems. - // Skipping truncation avoids preallocation of hard drive space and - // bypasses a truncate() and fsync() syscall on remapping. - // - // https://github.com/boltdb/bolt/issues/284 - NoGrowSync bool - - // If you want to read the entire database fast, you can set MmapFlag to - // syscall.MAP_POPULATE on Linux 2.6.23+ for sequential read-ahead. - MmapFlags int - - // MaxBatchSize is the maximum size of a batch. Default value is - // copied from DefaultMaxBatchSize in Open. - // - // If <=0, disables batching. - // - // Do not change concurrently with calls to Batch. - MaxBatchSize int - - // MaxBatchDelay is the maximum delay before a batch starts. - // Default value is copied from DefaultMaxBatchDelay in Open. - // - // If <=0, effectively disables batching. - // - // Do not change concurrently with calls to Batch. - MaxBatchDelay time.Duration - - // AllocSize is the amount of space allocated when the database - // needs to create new pages. This is done to amortize the cost - // of truncate() and fsync() when growing the data file. - AllocSize int - - path string - file *os.File - lockfile *os.File // windows only - dataref []byte // mmap'ed readonly, write throws SEGV - data *[maxMapSize]byte - datasz int - filesz int // current on disk file size - meta0 *meta - meta1 *meta - pageSize int - opened bool - rwtx *Tx - txs []*Tx - freelist *freelist - stats Stats - - pagePool sync.Pool - - batchMu sync.Mutex - batch *batch - - rwlock sync.Mutex // Allows only one writer at a time. - metalock sync.Mutex // Protects meta page access. - mmaplock sync.RWMutex // Protects mmap access during remapping. - statlock sync.RWMutex // Protects stats access. - - ops struct { - writeAt func(b []byte, off int64) (n int, err error) - } - - // Read only mode. - // When true, Update() and Begin(true) return ErrDatabaseReadOnly immediately. - readOnly bool -} - -// Path returns the path to currently open database file. -func (db *DB) Path() string { - return db.path -} - -// GoString returns the Go string representation of the database. -func (db *DB) GoString() string { - return fmt.Sprintf("bolt.DB{path:%q}", db.path) -} - -// String returns the string representation of the database. -func (db *DB) String() string { - return fmt.Sprintf("DB<%q>", db.path) -} - -// Open creates and opens a database at the given path. -// If the file does not exist then it will be created automatically. -// Passing in nil options will cause Bolt to open the database with the default options. -func Open(path string, mode os.FileMode, options *Options) (*DB, error) { - var db = &DB{opened: true} - - // Set default options if no options are provided. - if options == nil { - options = DefaultOptions - } - db.NoGrowSync = options.NoGrowSync - db.MmapFlags = options.MmapFlags - - // Set default values for later DB operations. - db.MaxBatchSize = DefaultMaxBatchSize - db.MaxBatchDelay = DefaultMaxBatchDelay - db.AllocSize = DefaultAllocSize - - flag := os.O_RDWR - if options.ReadOnly { - flag = os.O_RDONLY - db.readOnly = true - } - - // Open data file and separate sync handler for metadata writes. - db.path = path - var err error - if db.file, err = os.OpenFile(db.path, flag|os.O_CREATE, mode); err != nil { - _ = db.close() - return nil, err - } - - // Lock file so that other processes using Bolt in read-write mode cannot - // use the database at the same time. This would cause corruption since - // the two processes would write meta pages and free pages separately. - // The database file is locked exclusively (only one process can grab the lock) - // if !options.ReadOnly. - // The database file is locked using the shared lock (more than one process may - // hold a lock at the same time) otherwise (options.ReadOnly is set). - if err := flock(db, mode, !db.readOnly, options.Timeout); err != nil { - _ = db.close() - return nil, err - } - - // Default values for test hooks - db.ops.writeAt = db.file.WriteAt - - // Initialize the database if it doesn't exist. - if info, err := db.file.Stat(); err != nil { - return nil, err - } else if info.Size() == 0 { - // Initialize new files with meta pages. - if err := db.init(); err != nil { - return nil, err - } - } else { - // Read the first meta page to determine the page size. - var buf [0x1000]byte - if _, err := db.file.ReadAt(buf[:], 0); err == nil { - m := db.pageInBuffer(buf[:], 0).meta() - if err := m.validate(); err != nil { - // If we can't read the page size, we can assume it's the same - // as the OS -- since that's how the page size was chosen in the - // first place. - // - // If the first page is invalid and this OS uses a different - // page size than what the database was created with then we - // are out of luck and cannot access the database. - db.pageSize = os.Getpagesize() - } else { - db.pageSize = int(m.pageSize) - } - } - } - - // Initialize page pool. - db.pagePool = sync.Pool{ - New: func() interface{} { - return make([]byte, db.pageSize) - }, - } - - // Memory map the data file. - if err := db.mmap(options.InitialMmapSize); err != nil { - _ = db.close() - return nil, err - } - - // Read in the freelist. - db.freelist = newFreelist() - db.freelist.read(db.page(db.meta().freelist)) - - // Mark the database as opened and return. - return db, nil -} - -// mmap opens the underlying memory-mapped file and initializes the meta references. -// minsz is the minimum size that the new mmap can be. -func (db *DB) mmap(minsz int) error { - db.mmaplock.Lock() - defer db.mmaplock.Unlock() - - info, err := db.file.Stat() - if err != nil { - return fmt.Errorf("mmap stat error: %s", err) - } else if int(info.Size()) < db.pageSize*2 { - return fmt.Errorf("file size too small") - } - - // Ensure the size is at least the minimum size. - var size = int(info.Size()) - if size < minsz { - size = minsz - } - size, err = db.mmapSize(size) - if err != nil { - return err - } - - // Dereference all mmap references before unmapping. - if db.rwtx != nil { - db.rwtx.root.dereference() - } - - // Unmap existing data before continuing. - if err := db.munmap(); err != nil { - return err - } - - // Memory-map the data file as a byte slice. - if err := mmap(db, size); err != nil { - return err - } - - // Save references to the meta pages. - db.meta0 = db.page(0).meta() - db.meta1 = db.page(1).meta() - - // Validate the meta pages. We only return an error if both meta pages fail - // validation, since meta0 failing validation means that it wasn't saved - // properly -- but we can recover using meta1. And vice-versa. - err0 := db.meta0.validate() - err1 := db.meta1.validate() - if err0 != nil && err1 != nil { - return err0 - } - - return nil -} - -// munmap unmaps the data file from memory. -func (db *DB) munmap() error { - if err := munmap(db); err != nil { - return fmt.Errorf("unmap error: " + err.Error()) - } - return nil -} - -// mmapSize determines the appropriate size for the mmap given the current size -// of the database. The minimum size is 32KB and doubles until it reaches 1GB. -// Returns an error if the new mmap size is greater than the max allowed. -func (db *DB) mmapSize(size int) (int, error) { - // Double the size from 32KB until 1GB. - for i := uint(15); i <= 30; i++ { - if size <= 1< maxMapSize { - return 0, fmt.Errorf("mmap too large") - } - - // If larger than 1GB then grow by 1GB at a time. - sz := int64(size) - if remainder := sz % int64(maxMmapStep); remainder > 0 { - sz += int64(maxMmapStep) - remainder - } - - // Ensure that the mmap size is a multiple of the page size. - // This should always be true since we're incrementing in MBs. - pageSize := int64(db.pageSize) - if (sz % pageSize) != 0 { - sz = ((sz / pageSize) + 1) * pageSize - } - - // If we've exceeded the max size then only grow up to the max size. - if sz > maxMapSize { - sz = maxMapSize - } - - return int(sz), nil -} - -// init creates a new database file and initializes its meta pages. -func (db *DB) init() error { - // Set the page size to the OS page size. - db.pageSize = os.Getpagesize() - - // Create two meta pages on a buffer. - buf := make([]byte, db.pageSize*4) - for i := 0; i < 2; i++ { - p := db.pageInBuffer(buf[:], pgid(i)) - p.id = pgid(i) - p.flags = metaPageFlag - - // Initialize the meta page. - m := p.meta() - m.magic = magic - m.version = version - m.pageSize = uint32(db.pageSize) - m.freelist = 2 - m.root = bucket{root: 3} - m.pgid = 4 - m.txid = txid(i) - m.checksum = m.sum64() - } - - // Write an empty freelist at page 3. - p := db.pageInBuffer(buf[:], pgid(2)) - p.id = pgid(2) - p.flags = freelistPageFlag - p.count = 0 - - // Write an empty leaf page at page 4. - p = db.pageInBuffer(buf[:], pgid(3)) - p.id = pgid(3) - p.flags = leafPageFlag - p.count = 0 - - // Write the buffer to our data file. - if _, err := db.ops.writeAt(buf, 0); err != nil { - return err - } - if err := fdatasync(db); err != nil { - return err - } - - return nil -} - -// Close releases all database resources. -// All transactions must be closed before closing the database. -func (db *DB) Close() error { - db.rwlock.Lock() - defer db.rwlock.Unlock() - - db.metalock.Lock() - defer db.metalock.Unlock() - - db.mmaplock.RLock() - defer db.mmaplock.RUnlock() - - return db.close() -} - -func (db *DB) close() error { - if !db.opened { - return nil - } - - db.opened = false - - db.freelist = nil - - // Clear ops. - db.ops.writeAt = nil - - // Close the mmap. - if err := db.munmap(); err != nil { - return err - } - - // Close file handles. - if db.file != nil { - // No need to unlock read-only file. - if !db.readOnly { - // Unlock the file. - if err := funlock(db); err != nil { - log.Printf("bolt.Close(): funlock error: %s", err) - } - } - - // Close the file descriptor. - if err := db.file.Close(); err != nil { - return fmt.Errorf("db file close: %s", err) - } - db.file = nil - } - - db.path = "" - return nil -} - -// Begin starts a new transaction. -// Multiple read-only transactions can be used concurrently but only one -// write transaction can be used at a time. Starting multiple write transactions -// will cause the calls to block and be serialized until the current write -// transaction finishes. -// -// Transactions should not be dependent on one another. Opening a read -// transaction and a write transaction in the same goroutine can cause the -// writer to deadlock because the database periodically needs to re-mmap itself -// as it grows and it cannot do that while a read transaction is open. -// -// If a long running read transaction (for example, a snapshot transaction) is -// needed, you might want to set DB.InitialMmapSize to a large enough value -// to avoid potential blocking of write transaction. -// -// IMPORTANT: You must close read-only transactions after you are finished or -// else the database will not reclaim old pages. -func (db *DB) Begin(writable bool) (*Tx, error) { - if writable { - return db.beginRWTx() - } - return db.beginTx() -} - -func (db *DB) beginTx() (*Tx, error) { - // Lock the meta pages while we initialize the transaction. We obtain - // the meta lock before the mmap lock because that's the order that the - // write transaction will obtain them. - db.metalock.Lock() - - // Obtain a read-only lock on the mmap. When the mmap is remapped it will - // obtain a write lock so all transactions must finish before it can be - // remapped. - db.mmaplock.RLock() - - // Exit if the database is not open yet. - if !db.opened { - db.mmaplock.RUnlock() - db.metalock.Unlock() - return nil, ErrDatabaseNotOpen - } - - // Create a transaction associated with the database. - t := &Tx{} - t.init(db) - - // Keep track of transaction until it closes. - db.txs = append(db.txs, t) - n := len(db.txs) - - // Unlock the meta pages. - db.metalock.Unlock() - - // Update the transaction stats. - db.statlock.Lock() - db.stats.TxN++ - db.stats.OpenTxN = n - db.statlock.Unlock() - - return t, nil -} - -func (db *DB) beginRWTx() (*Tx, error) { - // If the database was opened with Options.ReadOnly, return an error. - if db.readOnly { - return nil, ErrDatabaseReadOnly - } - - // Obtain writer lock. This is released by the transaction when it closes. - // This enforces only one writer transaction at a time. - db.rwlock.Lock() - - // Once we have the writer lock then we can lock the meta pages so that - // we can set up the transaction. - db.metalock.Lock() - defer db.metalock.Unlock() - - // Exit if the database is not open yet. - if !db.opened { - db.rwlock.Unlock() - return nil, ErrDatabaseNotOpen - } - - // Create a transaction associated with the database. - t := &Tx{writable: true} - t.init(db) - db.rwtx = t - - // Free any pages associated with closed read-only transactions. - var minid txid = 0xFFFFFFFFFFFFFFFF - for _, t := range db.txs { - if t.meta.txid < minid { - minid = t.meta.txid - } - } - if minid > 0 { - db.freelist.release(minid - 1) - } - - return t, nil -} - -// removeTx removes a transaction from the database. -func (db *DB) removeTx(tx *Tx) { - // Release the read lock on the mmap. - db.mmaplock.RUnlock() - - // Use the meta lock to restrict access to the DB object. - db.metalock.Lock() - - // Remove the transaction. - for i, t := range db.txs { - if t == tx { - db.txs = append(db.txs[:i], db.txs[i+1:]...) - break - } - } - n := len(db.txs) - - // Unlock the meta pages. - db.metalock.Unlock() - - // Merge statistics. - db.statlock.Lock() - db.stats.OpenTxN = n - db.stats.TxStats.add(&tx.stats) - db.statlock.Unlock() -} - -// Update executes a function within the context of a read-write managed transaction. -// If no error is returned from the function then the transaction is committed. -// If an error is returned then the entire transaction is rolled back. -// Any error that is returned from the function or returned from the commit is -// returned from the Update() method. -// -// Attempting to manually commit or rollback within the function will cause a panic. -func (db *DB) Update(fn func(*Tx) error) error { - t, err := db.Begin(true) - if err != nil { - return err - } - - // Make sure the transaction rolls back in the event of a panic. - defer func() { - if t.db != nil { - t.rollback() - } - }() - - // Mark as a managed tx so that the inner function cannot manually commit. - t.managed = true - - // If an error is returned from the function then rollback and return error. - err = fn(t) - t.managed = false - if err != nil { - _ = t.Rollback() - return err - } - - return t.Commit() -} - -// View executes a function within the context of a managed read-only transaction. -// Any error that is returned from the function is returned from the View() method. -// -// Attempting to manually rollback within the function will cause a panic. -func (db *DB) View(fn func(*Tx) error) error { - t, err := db.Begin(false) - if err != nil { - return err - } - - // Make sure the transaction rolls back in the event of a panic. - defer func() { - if t.db != nil { - t.rollback() - } - }() - - // Mark as a managed tx so that the inner function cannot manually rollback. - t.managed = true - - // If an error is returned from the function then pass it through. - err = fn(t) - t.managed = false - if err != nil { - _ = t.Rollback() - return err - } - - if err := t.Rollback(); err != nil { - return err - } - - return nil -} - -// Batch calls fn as part of a batch. It behaves similar to Update, -// except: -// -// 1. concurrent Batch calls can be combined into a single Bolt -// transaction. -// -// 2. the function passed to Batch may be called multiple times, -// regardless of whether it returns error or not. -// -// This means that Batch function side effects must be idempotent and -// take permanent effect only after a successful return is seen in -// caller. -// -// The maximum batch size and delay can be adjusted with DB.MaxBatchSize -// and DB.MaxBatchDelay, respectively. -// -// Batch is only useful when there are multiple goroutines calling it. -func (db *DB) Batch(fn func(*Tx) error) error { - errCh := make(chan error, 1) - - db.batchMu.Lock() - if (db.batch == nil) || (db.batch != nil && len(db.batch.calls) >= db.MaxBatchSize) { - // There is no existing batch, or the existing batch is full; start a new one. - db.batch = &batch{ - db: db, - } - db.batch.timer = time.AfterFunc(db.MaxBatchDelay, db.batch.trigger) - } - db.batch.calls = append(db.batch.calls, call{fn: fn, err: errCh}) - if len(db.batch.calls) >= db.MaxBatchSize { - // wake up batch, it's ready to run - go db.batch.trigger() - } - db.batchMu.Unlock() - - err := <-errCh - if err == trySolo { - err = db.Update(fn) - } - return err -} - -type call struct { - fn func(*Tx) error - err chan<- error -} - -type batch struct { - db *DB - timer *time.Timer - start sync.Once - calls []call -} - -// trigger runs the batch if it hasn't already been run. -func (b *batch) trigger() { - b.start.Do(b.run) -} - -// run performs the transactions in the batch and communicates results -// back to DB.Batch. -func (b *batch) run() { - b.db.batchMu.Lock() - b.timer.Stop() - // Make sure no new work is added to this batch, but don't break - // other batches. - if b.db.batch == b { - b.db.batch = nil - } - b.db.batchMu.Unlock() - -retry: - for len(b.calls) > 0 { - var failIdx = -1 - err := b.db.Update(func(tx *Tx) error { - for i, c := range b.calls { - if err := safelyCall(c.fn, tx); err != nil { - failIdx = i - return err - } - } - return nil - }) - - if failIdx >= 0 { - // take the failing transaction out of the batch. it's - // safe to shorten b.calls here because db.batch no longer - // points to us, and we hold the mutex anyway. - c := b.calls[failIdx] - b.calls[failIdx], b.calls = b.calls[len(b.calls)-1], b.calls[:len(b.calls)-1] - // tell the submitter re-run it solo, continue with the rest of the batch - c.err <- trySolo - continue retry - } - - // pass success, or bolt internal errors, to all callers - for _, c := range b.calls { - if c.err != nil { - c.err <- err - } - } - break retry - } -} - -// trySolo is a special sentinel error value used for signaling that a -// transaction function should be re-run. It should never be seen by -// callers. -var trySolo = errors.New("batch function returned an error and should be re-run solo") - -type panicked struct { - reason interface{} -} - -func (p panicked) Error() string { - if err, ok := p.reason.(error); ok { - return err.Error() - } - return fmt.Sprintf("panic: %v", p.reason) -} - -func safelyCall(fn func(*Tx) error, tx *Tx) (err error) { - defer func() { - if p := recover(); p != nil { - err = panicked{p} - } - }() - return fn(tx) -} - -// Sync executes fdatasync() against the database file handle. -// -// This is not necessary under normal operation, however, if you use NoSync -// then it allows you to force the database file to sync against the disk. -func (db *DB) Sync() error { return fdatasync(db) } - -// Stats retrieves ongoing performance stats for the database. -// This is only updated when a transaction closes. -func (db *DB) Stats() Stats { - db.statlock.RLock() - defer db.statlock.RUnlock() - return db.stats -} - -// This is for internal access to the raw data bytes from the C cursor, use -// carefully, or not at all. -func (db *DB) Info() *Info { - return &Info{uintptr(unsafe.Pointer(&db.data[0])), db.pageSize} -} - -// page retrieves a page reference from the mmap based on the current page size. -func (db *DB) page(id pgid) *page { - pos := id * pgid(db.pageSize) - return (*page)(unsafe.Pointer(&db.data[pos])) -} - -// pageInBuffer retrieves a page reference from a given byte array based on the current page size. -func (db *DB) pageInBuffer(b []byte, id pgid) *page { - return (*page)(unsafe.Pointer(&b[id*pgid(db.pageSize)])) -} - -// meta retrieves the current meta page reference. -func (db *DB) meta() *meta { - // We have to return the meta with the highest txid which doesn't fail - // validation. Otherwise, we can cause errors when in fact the database is - // in a consistent state. metaA is the one with the higher txid. - metaA := db.meta0 - metaB := db.meta1 - if db.meta1.txid > db.meta0.txid { - metaA = db.meta1 - metaB = db.meta0 - } - - // Use higher meta page if valid. Otherwise fallback to previous, if valid. - if err := metaA.validate(); err == nil { - return metaA - } else if err := metaB.validate(); err == nil { - return metaB - } - - // This should never be reached, because both meta1 and meta0 were validated - // on mmap() and we do fsync() on every write. - panic("bolt.DB.meta(): invalid meta pages") -} - -// allocate returns a contiguous block of memory starting at a given page. -func (db *DB) allocate(count int) (*page, error) { - // Allocate a temporary buffer for the page. - var buf []byte - if count == 1 { - buf = db.pagePool.Get().([]byte) - } else { - buf = make([]byte, count*db.pageSize) - } - p := (*page)(unsafe.Pointer(&buf[0])) - p.overflow = uint32(count - 1) - - // Use pages from the freelist if they are available. - if p.id = db.freelist.allocate(count); p.id != 0 { - return p, nil - } - - // Resize mmap() if we're at the end. - p.id = db.rwtx.meta.pgid - var minsz = int((p.id+pgid(count))+1) * db.pageSize - if minsz >= db.datasz { - if err := db.mmap(minsz); err != nil { - return nil, fmt.Errorf("mmap allocate error: %s", err) - } - } - - // Move the page id high water mark. - db.rwtx.meta.pgid += pgid(count) - - return p, nil -} - -// grow grows the size of the database to the given sz. -func (db *DB) grow(sz int) error { - // Ignore if the new size is less than available file size. - if sz <= db.filesz { - return nil - } - - // If the data is smaller than the alloc size then only allocate what's needed. - // Once it goes over the allocation size then allocate in chunks. - if db.datasz < db.AllocSize { - sz = db.datasz - } else { - sz += db.AllocSize - } - - // Truncate and fsync to ensure file size metadata is flushed. - // https://github.com/boltdb/bolt/issues/284 - if !db.NoGrowSync && !db.readOnly { - if runtime.GOOS != "windows" { - if err := db.file.Truncate(int64(sz)); err != nil { - return fmt.Errorf("file resize error: %s", err) - } - } - if err := db.file.Sync(); err != nil { - return fmt.Errorf("file sync error: %s", err) - } - } - - db.filesz = sz - return nil -} - -func (db *DB) IsReadOnly() bool { - return db.readOnly -} - -// Options represents the options that can be set when opening a database. -type Options struct { - // Timeout is the amount of time to wait to obtain a file lock. - // When set to zero it will wait indefinitely. This option is only - // available on Darwin and Linux. - Timeout time.Duration - - // Sets the DB.NoGrowSync flag before memory mapping the file. - NoGrowSync bool - - // Open database in read-only mode. Uses flock(..., LOCK_SH |LOCK_NB) to - // grab a shared lock (UNIX). - ReadOnly bool - - // Sets the DB.MmapFlags flag before memory mapping the file. - MmapFlags int - - // InitialMmapSize is the initial mmap size of the database - // in bytes. Read transactions won't block write transaction - // if the InitialMmapSize is large enough to hold database mmap - // size. (See DB.Begin for more information) - // - // If <=0, the initial map size is 0. - // If initialMmapSize is smaller than the previous database size, - // it takes no effect. - InitialMmapSize int -} - -// DefaultOptions represent the options used if nil options are passed into Open(). -// No timeout is used which will cause Bolt to wait indefinitely for a lock. -var DefaultOptions = &Options{ - Timeout: 0, - NoGrowSync: false, -} - -// Stats represents statistics about the database. -type Stats struct { - // Freelist stats - FreePageN int // total number of free pages on the freelist - PendingPageN int // total number of pending pages on the freelist - FreeAlloc int // total bytes allocated in free pages - FreelistInuse int // total bytes used by the freelist - - // Transaction stats - TxN int // total number of started read transactions - OpenTxN int // number of currently open read transactions - - TxStats TxStats // global, ongoing stats. -} - -// Sub calculates and returns the difference between two sets of database stats. -// This is useful when obtaining stats at two different points and time and -// you need the performance counters that occurred within that time span. -func (s *Stats) Sub(other *Stats) Stats { - if other == nil { - return *s - } - var diff Stats - diff.FreePageN = s.FreePageN - diff.PendingPageN = s.PendingPageN - diff.FreeAlloc = s.FreeAlloc - diff.FreelistInuse = s.FreelistInuse - diff.TxN = other.TxN - s.TxN - diff.TxStats = s.TxStats.Sub(&other.TxStats) - return diff -} - -func (s *Stats) add(other *Stats) { - s.TxStats.add(&other.TxStats) -} - -type Info struct { - Data uintptr - PageSize int -} - -type meta struct { - magic uint32 - version uint32 - pageSize uint32 - flags uint32 - root bucket - freelist pgid - pgid pgid - txid txid - checksum uint64 -} - -// validate checks the marker bytes and version of the meta page to ensure it matches this binary. -func (m *meta) validate() error { - if m.magic != magic { - return ErrInvalid - } else if m.version != version { - return ErrVersionMismatch - } else if m.checksum != 0 && m.checksum != m.sum64() { - return ErrChecksum - } - return nil -} - -// copy copies one meta object to another. -func (m *meta) copy(dest *meta) { - *dest = *m -} - -// write writes the meta onto a page. -func (m *meta) write(p *page) { - if m.root.root >= m.pgid { - panic(fmt.Sprintf("root bucket pgid (%d) above high water mark (%d)", m.root.root, m.pgid)) - } else if m.freelist >= m.pgid { - panic(fmt.Sprintf("freelist pgid (%d) above high water mark (%d)", m.freelist, m.pgid)) - } - - // Page id is either going to be 0 or 1 which we can determine by the transaction ID. - p.id = pgid(m.txid % 2) - p.flags |= metaPageFlag - - // Calculate the checksum. - m.checksum = m.sum64() - - m.copy(p.meta()) -} - -// generates the checksum for the meta. -func (m *meta) sum64() uint64 { - var h = fnv.New64a() - _, _ = h.Write((*[unsafe.Offsetof(meta{}.checksum)]byte)(unsafe.Pointer(m))[:]) - return h.Sum64() -} - -// _assert will panic with a given formatted message if the given condition is false. -func _assert(condition bool, msg string, v ...interface{}) { - if !condition { - panic(fmt.Sprintf("assertion failed: "+msg, v...)) - } -} - -func warn(v ...interface{}) { fmt.Fprintln(os.Stderr, v...) } -func warnf(msg string, v ...interface{}) { fmt.Fprintf(os.Stderr, msg+"\n", v...) } - -func printstack() { - stack := strings.Join(strings.Split(string(debug.Stack()), "\n")[2:], "\n") - fmt.Fprintln(os.Stderr, stack) -} diff --git a/components/engine/vendor/github.com/boltdb/bolt/doc.go b/components/engine/vendor/github.com/boltdb/bolt/doc.go deleted file mode 100644 index cc937845dba..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/doc.go +++ /dev/null @@ -1,44 +0,0 @@ -/* -Package bolt implements a low-level key/value store in pure Go. It supports -fully serializable transactions, ACID semantics, and lock-free MVCC with -multiple readers and a single writer. Bolt can be used for projects that -want a simple data store without the need to add large dependencies such as -Postgres or MySQL. - -Bolt is a single-level, zero-copy, B+tree data store. This means that Bolt is -optimized for fast read access and does not require recovery in the event of a -system crash. Transactions which have not finished committing will simply be -rolled back in the event of a crash. - -The design of Bolt is based on Howard Chu's LMDB database project. - -Bolt currently works on Windows, Mac OS X, and Linux. - - -Basics - -There are only a few types in Bolt: DB, Bucket, Tx, and Cursor. The DB is -a collection of buckets and is represented by a single file on disk. A bucket is -a collection of unique keys that are associated with values. - -Transactions provide either read-only or read-write access to the database. -Read-only transactions can retrieve key/value pairs and can use Cursors to -iterate over the dataset sequentially. Read-write transactions can create and -delete buckets and can insert and remove keys. Only one read-write transaction -is allowed at a time. - - -Caveats - -The database uses a read-only, memory-mapped data file to ensure that -applications cannot corrupt the database, however, this means that keys and -values returned from Bolt cannot be changed. Writing to a read-only byte slice -will cause Go to panic. - -Keys and values retrieved from the database are only valid for the life of -the transaction. When used outside the transaction, these byte slices can -point to different data or can point to invalid memory which will cause a panic. - - -*/ -package bolt diff --git a/components/engine/vendor/github.com/boltdb/bolt/errors.go b/components/engine/vendor/github.com/boltdb/bolt/errors.go deleted file mode 100644 index a3620a3ebb2..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/errors.go +++ /dev/null @@ -1,71 +0,0 @@ -package bolt - -import "errors" - -// These errors can be returned when opening or calling methods on a DB. -var ( - // ErrDatabaseNotOpen is returned when a DB instance is accessed before it - // is opened or after it is closed. - ErrDatabaseNotOpen = errors.New("database not open") - - // ErrDatabaseOpen is returned when opening a database that is - // already open. - ErrDatabaseOpen = errors.New("database already open") - - // ErrInvalid is returned when both meta pages on a database are invalid. - // This typically occurs when a file is not a bolt database. - ErrInvalid = errors.New("invalid database") - - // ErrVersionMismatch is returned when the data file was created with a - // different version of Bolt. - ErrVersionMismatch = errors.New("version mismatch") - - // ErrChecksum is returned when either meta page checksum does not match. - ErrChecksum = errors.New("checksum error") - - // ErrTimeout is returned when a database cannot obtain an exclusive lock - // on the data file after the timeout passed to Open(). - ErrTimeout = errors.New("timeout") -) - -// These errors can occur when beginning or committing a Tx. -var ( - // ErrTxNotWritable is returned when performing a write operation on a - // read-only transaction. - ErrTxNotWritable = errors.New("tx not writable") - - // ErrTxClosed is returned when committing or rolling back a transaction - // that has already been committed or rolled back. - ErrTxClosed = errors.New("tx closed") - - // ErrDatabaseReadOnly is returned when a mutating transaction is started on a - // read-only database. - ErrDatabaseReadOnly = errors.New("database is in read-only mode") -) - -// These errors can occur when putting or deleting a value or a bucket. -var ( - // ErrBucketNotFound is returned when trying to access a bucket that has - // not been created yet. - ErrBucketNotFound = errors.New("bucket not found") - - // ErrBucketExists is returned when creating a bucket that already exists. - ErrBucketExists = errors.New("bucket already exists") - - // ErrBucketNameRequired is returned when creating a bucket with a blank name. - ErrBucketNameRequired = errors.New("bucket name required") - - // ErrKeyRequired is returned when inserting a zero-length key. - ErrKeyRequired = errors.New("key required") - - // ErrKeyTooLarge is returned when inserting a key that is larger than MaxKeySize. - ErrKeyTooLarge = errors.New("key too large") - - // ErrValueTooLarge is returned when inserting a value that is larger than MaxValueSize. - ErrValueTooLarge = errors.New("value too large") - - // ErrIncompatibleValue is returned when trying create or delete a bucket - // on an existing non-bucket key or when trying to create or delete a - // non-bucket key on an existing bucket key. - ErrIncompatibleValue = errors.New("incompatible value") -) diff --git a/components/engine/vendor/github.com/boltdb/bolt/freelist.go b/components/engine/vendor/github.com/boltdb/bolt/freelist.go deleted file mode 100644 index d32f6cd9373..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/freelist.go +++ /dev/null @@ -1,248 +0,0 @@ -package bolt - -import ( - "fmt" - "sort" - "unsafe" -) - -// freelist represents a list of all pages that are available for allocation. -// It also tracks pages that have been freed but are still in use by open transactions. -type freelist struct { - ids []pgid // all free and available free page ids. - pending map[txid][]pgid // mapping of soon-to-be free page ids by tx. - cache map[pgid]bool // fast lookup of all free and pending page ids. -} - -// newFreelist returns an empty, initialized freelist. -func newFreelist() *freelist { - return &freelist{ - pending: make(map[txid][]pgid), - cache: make(map[pgid]bool), - } -} - -// size returns the size of the page after serialization. -func (f *freelist) size() int { - return pageHeaderSize + (int(unsafe.Sizeof(pgid(0))) * f.count()) -} - -// count returns count of pages on the freelist -func (f *freelist) count() int { - return f.free_count() + f.pending_count() -} - -// free_count returns count of free pages -func (f *freelist) free_count() int { - return len(f.ids) -} - -// pending_count returns count of pending pages -func (f *freelist) pending_count() int { - var count int - for _, list := range f.pending { - count += len(list) - } - return count -} - -// all returns a list of all free ids and all pending ids in one sorted list. -func (f *freelist) all() []pgid { - m := make(pgids, 0) - - for _, list := range f.pending { - m = append(m, list...) - } - - sort.Sort(m) - return pgids(f.ids).merge(m) -} - -// allocate returns the starting page id of a contiguous list of pages of a given size. -// If a contiguous block cannot be found then 0 is returned. -func (f *freelist) allocate(n int) pgid { - if len(f.ids) == 0 { - return 0 - } - - var initial, previd pgid - for i, id := range f.ids { - if id <= 1 { - panic(fmt.Sprintf("invalid page allocation: %d", id)) - } - - // Reset initial page if this is not contiguous. - if previd == 0 || id-previd != 1 { - initial = id - } - - // If we found a contiguous block then remove it and return it. - if (id-initial)+1 == pgid(n) { - // If we're allocating off the beginning then take the fast path - // and just adjust the existing slice. This will use extra memory - // temporarily but the append() in free() will realloc the slice - // as is necessary. - if (i + 1) == n { - f.ids = f.ids[i+1:] - } else { - copy(f.ids[i-n+1:], f.ids[i+1:]) - f.ids = f.ids[:len(f.ids)-n] - } - - // Remove from the free cache. - for i := pgid(0); i < pgid(n); i++ { - delete(f.cache, initial+i) - } - - return initial - } - - previd = id - } - return 0 -} - -// free releases a page and its overflow for a given transaction id. -// If the page is already free then a panic will occur. -func (f *freelist) free(txid txid, p *page) { - if p.id <= 1 { - panic(fmt.Sprintf("cannot free page 0 or 1: %d", p.id)) - } - - // Free page and all its overflow pages. - var ids = f.pending[txid] - for id := p.id; id <= p.id+pgid(p.overflow); id++ { - // Verify that page is not already free. - if f.cache[id] { - panic(fmt.Sprintf("page %d already freed", id)) - } - - // Add to the freelist and cache. - ids = append(ids, id) - f.cache[id] = true - } - f.pending[txid] = ids -} - -// release moves all page ids for a transaction id (or older) to the freelist. -func (f *freelist) release(txid txid) { - m := make(pgids, 0) - for tid, ids := range f.pending { - if tid <= txid { - // Move transaction's pending pages to the available freelist. - // Don't remove from the cache since the page is still free. - m = append(m, ids...) - delete(f.pending, tid) - } - } - sort.Sort(m) - f.ids = pgids(f.ids).merge(m) -} - -// rollback removes the pages from a given pending tx. -func (f *freelist) rollback(txid txid) { - // Remove page ids from cache. - for _, id := range f.pending[txid] { - delete(f.cache, id) - } - - // Remove pages from pending list. - delete(f.pending, txid) -} - -// freed returns whether a given page is in the free list. -func (f *freelist) freed(pgid pgid) bool { - return f.cache[pgid] -} - -// read initializes the freelist from a freelist page. -func (f *freelist) read(p *page) { - // If the page.count is at the max uint16 value (64k) then it's considered - // an overflow and the size of the freelist is stored as the first element. - idx, count := 0, int(p.count) - if count == 0xFFFF { - idx = 1 - count = int(((*[maxAllocSize]pgid)(unsafe.Pointer(&p.ptr)))[0]) - } - - // Copy the list of page ids from the freelist. - if count == 0 { - f.ids = nil - } else { - ids := ((*[maxAllocSize]pgid)(unsafe.Pointer(&p.ptr)))[idx:count] - f.ids = make([]pgid, len(ids)) - copy(f.ids, ids) - - // Make sure they're sorted. - sort.Sort(pgids(f.ids)) - } - - // Rebuild the page cache. - f.reindex() -} - -// write writes the page ids onto a freelist page. All free and pending ids are -// saved to disk since in the event of a program crash, all pending ids will -// become free. -func (f *freelist) write(p *page) error { - // Combine the old free pgids and pgids waiting on an open transaction. - ids := f.all() - - // Update the header flag. - p.flags |= freelistPageFlag - - // The page.count can only hold up to 64k elements so if we overflow that - // number then we handle it by putting the size in the first element. - if len(ids) == 0 { - p.count = uint16(len(ids)) - } else if len(ids) < 0xFFFF { - p.count = uint16(len(ids)) - copy(((*[maxAllocSize]pgid)(unsafe.Pointer(&p.ptr)))[:], ids) - } else { - p.count = 0xFFFF - ((*[maxAllocSize]pgid)(unsafe.Pointer(&p.ptr)))[0] = pgid(len(ids)) - copy(((*[maxAllocSize]pgid)(unsafe.Pointer(&p.ptr)))[1:], ids) - } - - return nil -} - -// reload reads the freelist from a page and filters out pending items. -func (f *freelist) reload(p *page) { - f.read(p) - - // Build a cache of only pending pages. - pcache := make(map[pgid]bool) - for _, pendingIDs := range f.pending { - for _, pendingID := range pendingIDs { - pcache[pendingID] = true - } - } - - // Check each page in the freelist and build a new available freelist - // with any pages not in the pending lists. - var a []pgid - for _, id := range f.ids { - if !pcache[id] { - a = append(a, id) - } - } - f.ids = a - - // Once the available list is rebuilt then rebuild the free cache so that - // it includes the available and pending free pages. - f.reindex() -} - -// reindex rebuilds the free cache based on available and pending free lists. -func (f *freelist) reindex() { - f.cache = make(map[pgid]bool, len(f.ids)) - for _, id := range f.ids { - f.cache[id] = true - } - for _, pendingIDs := range f.pending { - for _, pendingID := range pendingIDs { - f.cache[pendingID] = true - } - } -} diff --git a/components/engine/vendor/github.com/boltdb/bolt/node.go b/components/engine/vendor/github.com/boltdb/bolt/node.go deleted file mode 100644 index 159318b229c..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/node.go +++ /dev/null @@ -1,604 +0,0 @@ -package bolt - -import ( - "bytes" - "fmt" - "sort" - "unsafe" -) - -// node represents an in-memory, deserialized page. -type node struct { - bucket *Bucket - isLeaf bool - unbalanced bool - spilled bool - key []byte - pgid pgid - parent *node - children nodes - inodes inodes -} - -// root returns the top-level node this node is attached to. -func (n *node) root() *node { - if n.parent == nil { - return n - } - return n.parent.root() -} - -// minKeys returns the minimum number of inodes this node should have. -func (n *node) minKeys() int { - if n.isLeaf { - return 1 - } - return 2 -} - -// size returns the size of the node after serialization. -func (n *node) size() int { - sz, elsz := pageHeaderSize, n.pageElementSize() - for i := 0; i < len(n.inodes); i++ { - item := &n.inodes[i] - sz += elsz + len(item.key) + len(item.value) - } - return sz -} - -// sizeLessThan returns true if the node is less than a given size. -// This is an optimization to avoid calculating a large node when we only need -// to know if it fits inside a certain page size. -func (n *node) sizeLessThan(v int) bool { - sz, elsz := pageHeaderSize, n.pageElementSize() - for i := 0; i < len(n.inodes); i++ { - item := &n.inodes[i] - sz += elsz + len(item.key) + len(item.value) - if sz >= v { - return false - } - } - return true -} - -// pageElementSize returns the size of each page element based on the type of node. -func (n *node) pageElementSize() int { - if n.isLeaf { - return leafPageElementSize - } - return branchPageElementSize -} - -// childAt returns the child node at a given index. -func (n *node) childAt(index int) *node { - if n.isLeaf { - panic(fmt.Sprintf("invalid childAt(%d) on a leaf node", index)) - } - return n.bucket.node(n.inodes[index].pgid, n) -} - -// childIndex returns the index of a given child node. -func (n *node) childIndex(child *node) int { - index := sort.Search(len(n.inodes), func(i int) bool { return bytes.Compare(n.inodes[i].key, child.key) != -1 }) - return index -} - -// numChildren returns the number of children. -func (n *node) numChildren() int { - return len(n.inodes) -} - -// nextSibling returns the next node with the same parent. -func (n *node) nextSibling() *node { - if n.parent == nil { - return nil - } - index := n.parent.childIndex(n) - if index >= n.parent.numChildren()-1 { - return nil - } - return n.parent.childAt(index + 1) -} - -// prevSibling returns the previous node with the same parent. -func (n *node) prevSibling() *node { - if n.parent == nil { - return nil - } - index := n.parent.childIndex(n) - if index == 0 { - return nil - } - return n.parent.childAt(index - 1) -} - -// put inserts a key/value. -func (n *node) put(oldKey, newKey, value []byte, pgid pgid, flags uint32) { - if pgid >= n.bucket.tx.meta.pgid { - panic(fmt.Sprintf("pgid (%d) above high water mark (%d)", pgid, n.bucket.tx.meta.pgid)) - } else if len(oldKey) <= 0 { - panic("put: zero-length old key") - } else if len(newKey) <= 0 { - panic("put: zero-length new key") - } - - // Find insertion index. - index := sort.Search(len(n.inodes), func(i int) bool { return bytes.Compare(n.inodes[i].key, oldKey) != -1 }) - - // Add capacity and shift nodes if we don't have an exact match and need to insert. - exact := (len(n.inodes) > 0 && index < len(n.inodes) && bytes.Equal(n.inodes[index].key, oldKey)) - if !exact { - n.inodes = append(n.inodes, inode{}) - copy(n.inodes[index+1:], n.inodes[index:]) - } - - inode := &n.inodes[index] - inode.flags = flags - inode.key = newKey - inode.value = value - inode.pgid = pgid - _assert(len(inode.key) > 0, "put: zero-length inode key") -} - -// del removes a key from the node. -func (n *node) del(key []byte) { - // Find index of key. - index := sort.Search(len(n.inodes), func(i int) bool { return bytes.Compare(n.inodes[i].key, key) != -1 }) - - // Exit if the key isn't found. - if index >= len(n.inodes) || !bytes.Equal(n.inodes[index].key, key) { - return - } - - // Delete inode from the node. - n.inodes = append(n.inodes[:index], n.inodes[index+1:]...) - - // Mark the node as needing rebalancing. - n.unbalanced = true -} - -// read initializes the node from a page. -func (n *node) read(p *page) { - n.pgid = p.id - n.isLeaf = ((p.flags & leafPageFlag) != 0) - n.inodes = make(inodes, int(p.count)) - - for i := 0; i < int(p.count); i++ { - inode := &n.inodes[i] - if n.isLeaf { - elem := p.leafPageElement(uint16(i)) - inode.flags = elem.flags - inode.key = elem.key() - inode.value = elem.value() - } else { - elem := p.branchPageElement(uint16(i)) - inode.pgid = elem.pgid - inode.key = elem.key() - } - _assert(len(inode.key) > 0, "read: zero-length inode key") - } - - // Save first key so we can find the node in the parent when we spill. - if len(n.inodes) > 0 { - n.key = n.inodes[0].key - _assert(len(n.key) > 0, "read: zero-length node key") - } else { - n.key = nil - } -} - -// write writes the items onto one or more pages. -func (n *node) write(p *page) { - // Initialize page. - if n.isLeaf { - p.flags |= leafPageFlag - } else { - p.flags |= branchPageFlag - } - - if len(n.inodes) >= 0xFFFF { - panic(fmt.Sprintf("inode overflow: %d (pgid=%d)", len(n.inodes), p.id)) - } - p.count = uint16(len(n.inodes)) - - // Stop here if there are no items to write. - if p.count == 0 { - return - } - - // Loop over each item and write it to the page. - b := (*[maxAllocSize]byte)(unsafe.Pointer(&p.ptr))[n.pageElementSize()*len(n.inodes):] - for i, item := range n.inodes { - _assert(len(item.key) > 0, "write: zero-length inode key") - - // Write the page element. - if n.isLeaf { - elem := p.leafPageElement(uint16(i)) - elem.pos = uint32(uintptr(unsafe.Pointer(&b[0])) - uintptr(unsafe.Pointer(elem))) - elem.flags = item.flags - elem.ksize = uint32(len(item.key)) - elem.vsize = uint32(len(item.value)) - } else { - elem := p.branchPageElement(uint16(i)) - elem.pos = uint32(uintptr(unsafe.Pointer(&b[0])) - uintptr(unsafe.Pointer(elem))) - elem.ksize = uint32(len(item.key)) - elem.pgid = item.pgid - _assert(elem.pgid != p.id, "write: circular dependency occurred") - } - - // If the length of key+value is larger than the max allocation size - // then we need to reallocate the byte array pointer. - // - // See: https://github.com/boltdb/bolt/pull/335 - klen, vlen := len(item.key), len(item.value) - if len(b) < klen+vlen { - b = (*[maxAllocSize]byte)(unsafe.Pointer(&b[0]))[:] - } - - // Write data for the element to the end of the page. - copy(b[0:], item.key) - b = b[klen:] - copy(b[0:], item.value) - b = b[vlen:] - } - - // DEBUG ONLY: n.dump() -} - -// split breaks up a node into multiple smaller nodes, if appropriate. -// This should only be called from the spill() function. -func (n *node) split(pageSize int) []*node { - var nodes []*node - - node := n - for { - // Split node into two. - a, b := node.splitTwo(pageSize) - nodes = append(nodes, a) - - // If we can't split then exit the loop. - if b == nil { - break - } - - // Set node to b so it gets split on the next iteration. - node = b - } - - return nodes -} - -// splitTwo breaks up a node into two smaller nodes, if appropriate. -// This should only be called from the split() function. -func (n *node) splitTwo(pageSize int) (*node, *node) { - // Ignore the split if the page doesn't have at least enough nodes for - // two pages or if the nodes can fit in a single page. - if len(n.inodes) <= (minKeysPerPage*2) || n.sizeLessThan(pageSize) { - return n, nil - } - - // Determine the threshold before starting a new node. - var fillPercent = n.bucket.FillPercent - if fillPercent < minFillPercent { - fillPercent = minFillPercent - } else if fillPercent > maxFillPercent { - fillPercent = maxFillPercent - } - threshold := int(float64(pageSize) * fillPercent) - - // Determine split position and sizes of the two pages. - splitIndex, _ := n.splitIndex(threshold) - - // Split node into two separate nodes. - // If there's no parent then we'll need to create one. - if n.parent == nil { - n.parent = &node{bucket: n.bucket, children: []*node{n}} - } - - // Create a new node and add it to the parent. - next := &node{bucket: n.bucket, isLeaf: n.isLeaf, parent: n.parent} - n.parent.children = append(n.parent.children, next) - - // Split inodes across two nodes. - next.inodes = n.inodes[splitIndex:] - n.inodes = n.inodes[:splitIndex] - - // Update the statistics. - n.bucket.tx.stats.Split++ - - return n, next -} - -// splitIndex finds the position where a page will fill a given threshold. -// It returns the index as well as the size of the first page. -// This is only be called from split(). -func (n *node) splitIndex(threshold int) (index, sz int) { - sz = pageHeaderSize - - // Loop until we only have the minimum number of keys required for the second page. - for i := 0; i < len(n.inodes)-minKeysPerPage; i++ { - index = i - inode := n.inodes[i] - elsize := n.pageElementSize() + len(inode.key) + len(inode.value) - - // If we have at least the minimum number of keys and adding another - // node would put us over the threshold then exit and return. - if i >= minKeysPerPage && sz+elsize > threshold { - break - } - - // Add the element size to the total size. - sz += elsize - } - - return -} - -// spill writes the nodes to dirty pages and splits nodes as it goes. -// Returns an error if dirty pages cannot be allocated. -func (n *node) spill() error { - var tx = n.bucket.tx - if n.spilled { - return nil - } - - // Spill child nodes first. Child nodes can materialize sibling nodes in - // the case of split-merge so we cannot use a range loop. We have to check - // the children size on every loop iteration. - sort.Sort(n.children) - for i := 0; i < len(n.children); i++ { - if err := n.children[i].spill(); err != nil { - return err - } - } - - // We no longer need the child list because it's only used for spill tracking. - n.children = nil - - // Split nodes into appropriate sizes. The first node will always be n. - var nodes = n.split(tx.db.pageSize) - for _, node := range nodes { - // Add node's page to the freelist if it's not new. - if node.pgid > 0 { - tx.db.freelist.free(tx.meta.txid, tx.page(node.pgid)) - node.pgid = 0 - } - - // Allocate contiguous space for the node. - p, err := tx.allocate((node.size() / tx.db.pageSize) + 1) - if err != nil { - return err - } - - // Write the node. - if p.id >= tx.meta.pgid { - panic(fmt.Sprintf("pgid (%d) above high water mark (%d)", p.id, tx.meta.pgid)) - } - node.pgid = p.id - node.write(p) - node.spilled = true - - // Insert into parent inodes. - if node.parent != nil { - var key = node.key - if key == nil { - key = node.inodes[0].key - } - - node.parent.put(key, node.inodes[0].key, nil, node.pgid, 0) - node.key = node.inodes[0].key - _assert(len(node.key) > 0, "spill: zero-length node key") - } - - // Update the statistics. - tx.stats.Spill++ - } - - // If the root node split and created a new root then we need to spill that - // as well. We'll clear out the children to make sure it doesn't try to respill. - if n.parent != nil && n.parent.pgid == 0 { - n.children = nil - return n.parent.spill() - } - - return nil -} - -// rebalance attempts to combine the node with sibling nodes if the node fill -// size is below a threshold or if there are not enough keys. -func (n *node) rebalance() { - if !n.unbalanced { - return - } - n.unbalanced = false - - // Update statistics. - n.bucket.tx.stats.Rebalance++ - - // Ignore if node is above threshold (25%) and has enough keys. - var threshold = n.bucket.tx.db.pageSize / 4 - if n.size() > threshold && len(n.inodes) > n.minKeys() { - return - } - - // Root node has special handling. - if n.parent == nil { - // If root node is a branch and only has one node then collapse it. - if !n.isLeaf && len(n.inodes) == 1 { - // Move root's child up. - child := n.bucket.node(n.inodes[0].pgid, n) - n.isLeaf = child.isLeaf - n.inodes = child.inodes[:] - n.children = child.children - - // Reparent all child nodes being moved. - for _, inode := range n.inodes { - if child, ok := n.bucket.nodes[inode.pgid]; ok { - child.parent = n - } - } - - // Remove old child. - child.parent = nil - delete(n.bucket.nodes, child.pgid) - child.free() - } - - return - } - - // If node has no keys then just remove it. - if n.numChildren() == 0 { - n.parent.del(n.key) - n.parent.removeChild(n) - delete(n.bucket.nodes, n.pgid) - n.free() - n.parent.rebalance() - return - } - - _assert(n.parent.numChildren() > 1, "parent must have at least 2 children") - - // Destination node is right sibling if idx == 0, otherwise left sibling. - var target *node - var useNextSibling = (n.parent.childIndex(n) == 0) - if useNextSibling { - target = n.nextSibling() - } else { - target = n.prevSibling() - } - - // If both this node and the target node are too small then merge them. - if useNextSibling { - // Reparent all child nodes being moved. - for _, inode := range target.inodes { - if child, ok := n.bucket.nodes[inode.pgid]; ok { - child.parent.removeChild(child) - child.parent = n - child.parent.children = append(child.parent.children, child) - } - } - - // Copy over inodes from target and remove target. - n.inodes = append(n.inodes, target.inodes...) - n.parent.del(target.key) - n.parent.removeChild(target) - delete(n.bucket.nodes, target.pgid) - target.free() - } else { - // Reparent all child nodes being moved. - for _, inode := range n.inodes { - if child, ok := n.bucket.nodes[inode.pgid]; ok { - child.parent.removeChild(child) - child.parent = target - child.parent.children = append(child.parent.children, child) - } - } - - // Copy over inodes to target and remove node. - target.inodes = append(target.inodes, n.inodes...) - n.parent.del(n.key) - n.parent.removeChild(n) - delete(n.bucket.nodes, n.pgid) - n.free() - } - - // Either this node or the target node was deleted from the parent so rebalance it. - n.parent.rebalance() -} - -// removes a node from the list of in-memory children. -// This does not affect the inodes. -func (n *node) removeChild(target *node) { - for i, child := range n.children { - if child == target { - n.children = append(n.children[:i], n.children[i+1:]...) - return - } - } -} - -// dereference causes the node to copy all its inode key/value references to heap memory. -// This is required when the mmap is reallocated so inodes are not pointing to stale data. -func (n *node) dereference() { - if n.key != nil { - key := make([]byte, len(n.key)) - copy(key, n.key) - n.key = key - _assert(n.pgid == 0 || len(n.key) > 0, "dereference: zero-length node key on existing node") - } - - for i := range n.inodes { - inode := &n.inodes[i] - - key := make([]byte, len(inode.key)) - copy(key, inode.key) - inode.key = key - _assert(len(inode.key) > 0, "dereference: zero-length inode key") - - value := make([]byte, len(inode.value)) - copy(value, inode.value) - inode.value = value - } - - // Recursively dereference children. - for _, child := range n.children { - child.dereference() - } - - // Update statistics. - n.bucket.tx.stats.NodeDeref++ -} - -// free adds the node's underlying page to the freelist. -func (n *node) free() { - if n.pgid != 0 { - n.bucket.tx.db.freelist.free(n.bucket.tx.meta.txid, n.bucket.tx.page(n.pgid)) - n.pgid = 0 - } -} - -// dump writes the contents of the node to STDERR for debugging purposes. -/* -func (n *node) dump() { - // Write node header. - var typ = "branch" - if n.isLeaf { - typ = "leaf" - } - warnf("[NODE %d {type=%s count=%d}]", n.pgid, typ, len(n.inodes)) - - // Write out abbreviated version of each item. - for _, item := range n.inodes { - if n.isLeaf { - if item.flags&bucketLeafFlag != 0 { - bucket := (*bucket)(unsafe.Pointer(&item.value[0])) - warnf("+L %08x -> (bucket root=%d)", trunc(item.key, 4), bucket.root) - } else { - warnf("+L %08x -> %08x", trunc(item.key, 4), trunc(item.value, 4)) - } - } else { - warnf("+B %08x -> pgid=%d", trunc(item.key, 4), item.pgid) - } - } - warn("") -} -*/ - -type nodes []*node - -func (s nodes) Len() int { return len(s) } -func (s nodes) Swap(i, j int) { s[i], s[j] = s[j], s[i] } -func (s nodes) Less(i, j int) bool { return bytes.Compare(s[i].inodes[0].key, s[j].inodes[0].key) == -1 } - -// inode represents an internal node inside of a node. -// It can be used to point to elements in a page or point -// to an element which hasn't been added to a page yet. -type inode struct { - flags uint32 - pgid pgid - key []byte - value []byte -} - -type inodes []inode diff --git a/components/engine/vendor/github.com/boltdb/bolt/page.go b/components/engine/vendor/github.com/boltdb/bolt/page.go deleted file mode 100644 index 7651a6bf7d9..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/page.go +++ /dev/null @@ -1,178 +0,0 @@ -package bolt - -import ( - "fmt" - "os" - "sort" - "unsafe" -) - -const pageHeaderSize = int(unsafe.Offsetof(((*page)(nil)).ptr)) - -const minKeysPerPage = 2 - -const branchPageElementSize = int(unsafe.Sizeof(branchPageElement{})) -const leafPageElementSize = int(unsafe.Sizeof(leafPageElement{})) - -const ( - branchPageFlag = 0x01 - leafPageFlag = 0x02 - metaPageFlag = 0x04 - freelistPageFlag = 0x10 -) - -const ( - bucketLeafFlag = 0x01 -) - -type pgid uint64 - -type page struct { - id pgid - flags uint16 - count uint16 - overflow uint32 - ptr uintptr -} - -// typ returns a human readable page type string used for debugging. -func (p *page) typ() string { - if (p.flags & branchPageFlag) != 0 { - return "branch" - } else if (p.flags & leafPageFlag) != 0 { - return "leaf" - } else if (p.flags & metaPageFlag) != 0 { - return "meta" - } else if (p.flags & freelistPageFlag) != 0 { - return "freelist" - } - return fmt.Sprintf("unknown<%02x>", p.flags) -} - -// meta returns a pointer to the metadata section of the page. -func (p *page) meta() *meta { - return (*meta)(unsafe.Pointer(&p.ptr)) -} - -// leafPageElement retrieves the leaf node by index -func (p *page) leafPageElement(index uint16) *leafPageElement { - n := &((*[0x7FFFFFF]leafPageElement)(unsafe.Pointer(&p.ptr)))[index] - return n -} - -// leafPageElements retrieves a list of leaf nodes. -func (p *page) leafPageElements() []leafPageElement { - if p.count == 0 { - return nil - } - return ((*[0x7FFFFFF]leafPageElement)(unsafe.Pointer(&p.ptr)))[:] -} - -// branchPageElement retrieves the branch node by index -func (p *page) branchPageElement(index uint16) *branchPageElement { - return &((*[0x7FFFFFF]branchPageElement)(unsafe.Pointer(&p.ptr)))[index] -} - -// branchPageElements retrieves a list of branch nodes. -func (p *page) branchPageElements() []branchPageElement { - if p.count == 0 { - return nil - } - return ((*[0x7FFFFFF]branchPageElement)(unsafe.Pointer(&p.ptr)))[:] -} - -// dump writes n bytes of the page to STDERR as hex output. -func (p *page) hexdump(n int) { - buf := (*[maxAllocSize]byte)(unsafe.Pointer(p))[:n] - fmt.Fprintf(os.Stderr, "%x\n", buf) -} - -type pages []*page - -func (s pages) Len() int { return len(s) } -func (s pages) Swap(i, j int) { s[i], s[j] = s[j], s[i] } -func (s pages) Less(i, j int) bool { return s[i].id < s[j].id } - -// branchPageElement represents a node on a branch page. -type branchPageElement struct { - pos uint32 - ksize uint32 - pgid pgid -} - -// key returns a byte slice of the node key. -func (n *branchPageElement) key() []byte { - buf := (*[maxAllocSize]byte)(unsafe.Pointer(n)) - return (*[maxAllocSize]byte)(unsafe.Pointer(&buf[n.pos]))[:n.ksize] -} - -// leafPageElement represents a node on a leaf page. -type leafPageElement struct { - flags uint32 - pos uint32 - ksize uint32 - vsize uint32 -} - -// key returns a byte slice of the node key. -func (n *leafPageElement) key() []byte { - buf := (*[maxAllocSize]byte)(unsafe.Pointer(n)) - return (*[maxAllocSize]byte)(unsafe.Pointer(&buf[n.pos]))[:n.ksize:n.ksize] -} - -// value returns a byte slice of the node value. -func (n *leafPageElement) value() []byte { - buf := (*[maxAllocSize]byte)(unsafe.Pointer(n)) - return (*[maxAllocSize]byte)(unsafe.Pointer(&buf[n.pos+n.ksize]))[:n.vsize:n.vsize] -} - -// PageInfo represents human readable information about a page. -type PageInfo struct { - ID int - Type string - Count int - OverflowCount int -} - -type pgids []pgid - -func (s pgids) Len() int { return len(s) } -func (s pgids) Swap(i, j int) { s[i], s[j] = s[j], s[i] } -func (s pgids) Less(i, j int) bool { return s[i] < s[j] } - -// merge returns the sorted union of a and b. -func (a pgids) merge(b pgids) pgids { - // Return the opposite slice if one is nil. - if len(a) == 0 { - return b - } else if len(b) == 0 { - return a - } - - // Create a list to hold all elements from both lists. - merged := make(pgids, 0, len(a)+len(b)) - - // Assign lead to the slice with a lower starting value, follow to the higher value. - lead, follow := a, b - if b[0] < a[0] { - lead, follow = b, a - } - - // Continue while there are elements in the lead. - for len(lead) > 0 { - // Merge largest prefix of lead that is ahead of follow[0]. - n := sort.Search(len(lead), func(i int) bool { return lead[i] > follow[0] }) - merged = append(merged, lead[:n]...) - if n >= len(lead) { - break - } - - // Swap lead and follow. - lead, follow = follow, lead[n:] - } - - // Append what's left in follow. - merged = append(merged, follow...) - - return merged -} diff --git a/components/engine/vendor/github.com/boltdb/bolt/tx.go b/components/engine/vendor/github.com/boltdb/bolt/tx.go deleted file mode 100644 index 1cfb4cde855..00000000000 --- a/components/engine/vendor/github.com/boltdb/bolt/tx.go +++ /dev/null @@ -1,682 +0,0 @@ -package bolt - -import ( - "fmt" - "io" - "os" - "sort" - "strings" - "time" - "unsafe" -) - -// txid represents the internal transaction identifier. -type txid uint64 - -// Tx represents a read-only or read/write transaction on the database. -// Read-only transactions can be used for retrieving values for keys and creating cursors. -// Read/write transactions can create and remove buckets and create and remove keys. -// -// IMPORTANT: You must commit or rollback transactions when you are done with -// them. Pages can not be reclaimed by the writer until no more transactions -// are using them. A long running read transaction can cause the database to -// quickly grow. -type Tx struct { - writable bool - managed bool - db *DB - meta *meta - root Bucket - pages map[pgid]*page - stats TxStats - commitHandlers []func() - - // WriteFlag specifies the flag for write-related methods like WriteTo(). - // Tx opens the database file with the specified flag to copy the data. - // - // By default, the flag is unset, which works well for mostly in-memory - // workloads. For databases that are much larger than available RAM, - // set the flag to syscall.O_DIRECT to avoid trashing the page cache. - WriteFlag int -} - -// init initializes the transaction. -func (tx *Tx) init(db *DB) { - tx.db = db - tx.pages = nil - - // Copy the meta page since it can be changed by the writer. - tx.meta = &meta{} - db.meta().copy(tx.meta) - - // Copy over the root bucket. - tx.root = newBucket(tx) - tx.root.bucket = &bucket{} - *tx.root.bucket = tx.meta.root - - // Increment the transaction id and add a page cache for writable transactions. - if tx.writable { - tx.pages = make(map[pgid]*page) - tx.meta.txid += txid(1) - } -} - -// ID returns the transaction id. -func (tx *Tx) ID() int { - return int(tx.meta.txid) -} - -// DB returns a reference to the database that created the transaction. -func (tx *Tx) DB() *DB { - return tx.db -} - -// Size returns current database size in bytes as seen by this transaction. -func (tx *Tx) Size() int64 { - return int64(tx.meta.pgid) * int64(tx.db.pageSize) -} - -// Writable returns whether the transaction can perform write operations. -func (tx *Tx) Writable() bool { - return tx.writable -} - -// Cursor creates a cursor associated with the root bucket. -// All items in the cursor will return a nil value because all root bucket keys point to buckets. -// The cursor is only valid as long as the transaction is open. -// Do not use a cursor after the transaction is closed. -func (tx *Tx) Cursor() *Cursor { - return tx.root.Cursor() -} - -// Stats retrieves a copy of the current transaction statistics. -func (tx *Tx) Stats() TxStats { - return tx.stats -} - -// Bucket retrieves a bucket by name. -// Returns nil if the bucket does not exist. -// The bucket instance is only valid for the lifetime of the transaction. -func (tx *Tx) Bucket(name []byte) *Bucket { - return tx.root.Bucket(name) -} - -// CreateBucket creates a new bucket. -// Returns an error if the bucket already exists, if the bucket name is blank, or if the bucket name is too long. -// The bucket instance is only valid for the lifetime of the transaction. -func (tx *Tx) CreateBucket(name []byte) (*Bucket, error) { - return tx.root.CreateBucket(name) -} - -// CreateBucketIfNotExists creates a new bucket if it doesn't already exist. -// Returns an error if the bucket name is blank, or if the bucket name is too long. -// The bucket instance is only valid for the lifetime of the transaction. -func (tx *Tx) CreateBucketIfNotExists(name []byte) (*Bucket, error) { - return tx.root.CreateBucketIfNotExists(name) -} - -// DeleteBucket deletes a bucket. -// Returns an error if the bucket cannot be found or if the key represents a non-bucket value. -func (tx *Tx) DeleteBucket(name []byte) error { - return tx.root.DeleteBucket(name) -} - -// ForEach executes a function for each bucket in the root. -// If the provided function returns an error then the iteration is stopped and -// the error is returned to the caller. -func (tx *Tx) ForEach(fn func(name []byte, b *Bucket) error) error { - return tx.root.ForEach(func(k, v []byte) error { - if err := fn(k, tx.root.Bucket(k)); err != nil { - return err - } - return nil - }) -} - -// OnCommit adds a handler function to be executed after the transaction successfully commits. -func (tx *Tx) OnCommit(fn func()) { - tx.commitHandlers = append(tx.commitHandlers, fn) -} - -// Commit writes all changes to disk and updates the meta page. -// Returns an error if a disk write error occurs, or if Commit is -// called on a read-only transaction. -func (tx *Tx) Commit() error { - _assert(!tx.managed, "managed tx commit not allowed") - if tx.db == nil { - return ErrTxClosed - } else if !tx.writable { - return ErrTxNotWritable - } - - // TODO(benbjohnson): Use vectorized I/O to write out dirty pages. - - // Rebalance nodes which have had deletions. - var startTime = time.Now() - tx.root.rebalance() - if tx.stats.Rebalance > 0 { - tx.stats.RebalanceTime += time.Since(startTime) - } - - // spill data onto dirty pages. - startTime = time.Now() - if err := tx.root.spill(); err != nil { - tx.rollback() - return err - } - tx.stats.SpillTime += time.Since(startTime) - - // Free the old root bucket. - tx.meta.root.root = tx.root.root - - opgid := tx.meta.pgid - - // Free the freelist and allocate new pages for it. This will overestimate - // the size of the freelist but not underestimate the size (which would be bad). - tx.db.freelist.free(tx.meta.txid, tx.db.page(tx.meta.freelist)) - p, err := tx.allocate((tx.db.freelist.size() / tx.db.pageSize) + 1) - if err != nil { - tx.rollback() - return err - } - if err := tx.db.freelist.write(p); err != nil { - tx.rollback() - return err - } - tx.meta.freelist = p.id - - // If the high water mark has moved up then attempt to grow the database. - if tx.meta.pgid > opgid { - if err := tx.db.grow(int(tx.meta.pgid+1) * tx.db.pageSize); err != nil { - tx.rollback() - return err - } - } - - // Write dirty pages to disk. - startTime = time.Now() - if err := tx.write(); err != nil { - tx.rollback() - return err - } - - // If strict mode is enabled then perform a consistency check. - // Only the first consistency error is reported in the panic. - if tx.db.StrictMode { - ch := tx.Check() - var errs []string - for { - err, ok := <-ch - if !ok { - break - } - errs = append(errs, err.Error()) - } - if len(errs) > 0 { - panic("check fail: " + strings.Join(errs, "\n")) - } - } - - // Write meta to disk. - if err := tx.writeMeta(); err != nil { - tx.rollback() - return err - } - tx.stats.WriteTime += time.Since(startTime) - - // Finalize the transaction. - tx.close() - - // Execute commit handlers now that the locks have been removed. - for _, fn := range tx.commitHandlers { - fn() - } - - return nil -} - -// Rollback closes the transaction and ignores all previous updates. Read-only -// transactions must be rolled back and not committed. -func (tx *Tx) Rollback() error { - _assert(!tx.managed, "managed tx rollback not allowed") - if tx.db == nil { - return ErrTxClosed - } - tx.rollback() - return nil -} - -func (tx *Tx) rollback() { - if tx.db == nil { - return - } - if tx.writable { - tx.db.freelist.rollback(tx.meta.txid) - tx.db.freelist.reload(tx.db.page(tx.db.meta().freelist)) - } - tx.close() -} - -func (tx *Tx) close() { - if tx.db == nil { - return - } - if tx.writable { - // Grab freelist stats. - var freelistFreeN = tx.db.freelist.free_count() - var freelistPendingN = tx.db.freelist.pending_count() - var freelistAlloc = tx.db.freelist.size() - - // Remove transaction ref & writer lock. - tx.db.rwtx = nil - tx.db.rwlock.Unlock() - - // Merge statistics. - tx.db.statlock.Lock() - tx.db.stats.FreePageN = freelistFreeN - tx.db.stats.PendingPageN = freelistPendingN - tx.db.stats.FreeAlloc = (freelistFreeN + freelistPendingN) * tx.db.pageSize - tx.db.stats.FreelistInuse = freelistAlloc - tx.db.stats.TxStats.add(&tx.stats) - tx.db.statlock.Unlock() - } else { - tx.db.removeTx(tx) - } - - // Clear all references. - tx.db = nil - tx.meta = nil - tx.root = Bucket{tx: tx} - tx.pages = nil -} - -// Copy writes the entire database to a writer. -// This function exists for backwards compatibility. Use WriteTo() instead. -func (tx *Tx) Copy(w io.Writer) error { - _, err := tx.WriteTo(w) - return err -} - -// WriteTo writes the entire database to a writer. -// If err == nil then exactly tx.Size() bytes will be written into the writer. -func (tx *Tx) WriteTo(w io.Writer) (n int64, err error) { - // Attempt to open reader with WriteFlag - f, err := os.OpenFile(tx.db.path, os.O_RDONLY|tx.WriteFlag, 0) - if err != nil { - return 0, err - } - defer func() { _ = f.Close() }() - - // Generate a meta page. We use the same page data for both meta pages. - buf := make([]byte, tx.db.pageSize) - page := (*page)(unsafe.Pointer(&buf[0])) - page.flags = metaPageFlag - *page.meta() = *tx.meta - - // Write meta 0. - page.id = 0 - page.meta().checksum = page.meta().sum64() - nn, err := w.Write(buf) - n += int64(nn) - if err != nil { - return n, fmt.Errorf("meta 0 copy: %s", err) - } - - // Write meta 1 with a lower transaction id. - page.id = 1 - page.meta().txid -= 1 - page.meta().checksum = page.meta().sum64() - nn, err = w.Write(buf) - n += int64(nn) - if err != nil { - return n, fmt.Errorf("meta 1 copy: %s", err) - } - - // Move past the meta pages in the file. - if _, err := f.Seek(int64(tx.db.pageSize*2), os.SEEK_SET); err != nil { - return n, fmt.Errorf("seek: %s", err) - } - - // Copy data pages. - wn, err := io.CopyN(w, f, tx.Size()-int64(tx.db.pageSize*2)) - n += wn - if err != nil { - return n, err - } - - return n, f.Close() -} - -// CopyFile copies the entire database to file at the given path. -// A reader transaction is maintained during the copy so it is safe to continue -// using the database while a copy is in progress. -func (tx *Tx) CopyFile(path string, mode os.FileMode) error { - f, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_TRUNC, mode) - if err != nil { - return err - } - - err = tx.Copy(f) - if err != nil { - _ = f.Close() - return err - } - return f.Close() -} - -// Check performs several consistency checks on the database for this transaction. -// An error is returned if any inconsistency is found. -// -// It can be safely run concurrently on a writable transaction. However, this -// incurs a high cost for large databases and databases with a lot of subbuckets -// because of caching. This overhead can be removed if running on a read-only -// transaction, however, it is not safe to execute other writer transactions at -// the same time. -func (tx *Tx) Check() <-chan error { - ch := make(chan error) - go tx.check(ch) - return ch -} - -func (tx *Tx) check(ch chan error) { - // Check if any pages are double freed. - freed := make(map[pgid]bool) - for _, id := range tx.db.freelist.all() { - if freed[id] { - ch <- fmt.Errorf("page %d: already freed", id) - } - freed[id] = true - } - - // Track every reachable page. - reachable := make(map[pgid]*page) - reachable[0] = tx.page(0) // meta0 - reachable[1] = tx.page(1) // meta1 - for i := uint32(0); i <= tx.page(tx.meta.freelist).overflow; i++ { - reachable[tx.meta.freelist+pgid(i)] = tx.page(tx.meta.freelist) - } - - // Recursively check buckets. - tx.checkBucket(&tx.root, reachable, freed, ch) - - // Ensure all pages below high water mark are either reachable or freed. - for i := pgid(0); i < tx.meta.pgid; i++ { - _, isReachable := reachable[i] - if !isReachable && !freed[i] { - ch <- fmt.Errorf("page %d: unreachable unfreed", int(i)) - } - } - - // Close the channel to signal completion. - close(ch) -} - -func (tx *Tx) checkBucket(b *Bucket, reachable map[pgid]*page, freed map[pgid]bool, ch chan error) { - // Ignore inline buckets. - if b.root == 0 { - return - } - - // Check every page used by this bucket. - b.tx.forEachPage(b.root, 0, func(p *page, _ int) { - if p.id > tx.meta.pgid { - ch <- fmt.Errorf("page %d: out of bounds: %d", int(p.id), int(b.tx.meta.pgid)) - } - - // Ensure each page is only referenced once. - for i := pgid(0); i <= pgid(p.overflow); i++ { - var id = p.id + i - if _, ok := reachable[id]; ok { - ch <- fmt.Errorf("page %d: multiple references", int(id)) - } - reachable[id] = p - } - - // We should only encounter un-freed leaf and branch pages. - if freed[p.id] { - ch <- fmt.Errorf("page %d: reachable freed", int(p.id)) - } else if (p.flags&branchPageFlag) == 0 && (p.flags&leafPageFlag) == 0 { - ch <- fmt.Errorf("page %d: invalid type: %s", int(p.id), p.typ()) - } - }) - - // Check each bucket within this bucket. - _ = b.ForEach(func(k, v []byte) error { - if child := b.Bucket(k); child != nil { - tx.checkBucket(child, reachable, freed, ch) - } - return nil - }) -} - -// allocate returns a contiguous block of memory starting at a given page. -func (tx *Tx) allocate(count int) (*page, error) { - p, err := tx.db.allocate(count) - if err != nil { - return nil, err - } - - // Save to our page cache. - tx.pages[p.id] = p - - // Update statistics. - tx.stats.PageCount++ - tx.stats.PageAlloc += count * tx.db.pageSize - - return p, nil -} - -// write writes any dirty pages to disk. -func (tx *Tx) write() error { - // Sort pages by id. - pages := make(pages, 0, len(tx.pages)) - for _, p := range tx.pages { - pages = append(pages, p) - } - // Clear out page cache early. - tx.pages = make(map[pgid]*page) - sort.Sort(pages) - - // Write pages to disk in order. - for _, p := range pages { - size := (int(p.overflow) + 1) * tx.db.pageSize - offset := int64(p.id) * int64(tx.db.pageSize) - - // Write out page in "max allocation" sized chunks. - ptr := (*[maxAllocSize]byte)(unsafe.Pointer(p)) - for { - // Limit our write to our max allocation size. - sz := size - if sz > maxAllocSize-1 { - sz = maxAllocSize - 1 - } - - // Write chunk to disk. - buf := ptr[:sz] - if _, err := tx.db.ops.writeAt(buf, offset); err != nil { - return err - } - - // Update statistics. - tx.stats.Write++ - - // Exit inner for loop if we've written all the chunks. - size -= sz - if size == 0 { - break - } - - // Otherwise move offset forward and move pointer to next chunk. - offset += int64(sz) - ptr = (*[maxAllocSize]byte)(unsafe.Pointer(&ptr[sz])) - } - } - - // Ignore file sync if flag is set on DB. - if !tx.db.NoSync || IgnoreNoSync { - if err := fdatasync(tx.db); err != nil { - return err - } - } - - // Put small pages back to page pool. - for _, p := range pages { - // Ignore page sizes over 1 page. - // These are allocated using make() instead of the page pool. - if int(p.overflow) != 0 { - continue - } - - buf := (*[maxAllocSize]byte)(unsafe.Pointer(p))[:tx.db.pageSize] - - // See https://go.googlesource.com/go/+/f03c9202c43e0abb130669852082117ca50aa9b1 - for i := range buf { - buf[i] = 0 - } - tx.db.pagePool.Put(buf) - } - - return nil -} - -// writeMeta writes the meta to the disk. -func (tx *Tx) writeMeta() error { - // Create a temporary buffer for the meta page. - buf := make([]byte, tx.db.pageSize) - p := tx.db.pageInBuffer(buf, 0) - tx.meta.write(p) - - // Write the meta page to file. - if _, err := tx.db.ops.writeAt(buf, int64(p.id)*int64(tx.db.pageSize)); err != nil { - return err - } - if !tx.db.NoSync || IgnoreNoSync { - if err := fdatasync(tx.db); err != nil { - return err - } - } - - // Update statistics. - tx.stats.Write++ - - return nil -} - -// page returns a reference to the page with a given id. -// If page has been written to then a temporary buffered page is returned. -func (tx *Tx) page(id pgid) *page { - // Check the dirty pages first. - if tx.pages != nil { - if p, ok := tx.pages[id]; ok { - return p - } - } - - // Otherwise return directly from the mmap. - return tx.db.page(id) -} - -// forEachPage iterates over every page within a given page and executes a function. -func (tx *Tx) forEachPage(pgid pgid, depth int, fn func(*page, int)) { - p := tx.page(pgid) - - // Execute function. - fn(p, depth) - - // Recursively loop over children. - if (p.flags & branchPageFlag) != 0 { - for i := 0; i < int(p.count); i++ { - elem := p.branchPageElement(uint16(i)) - tx.forEachPage(elem.pgid, depth+1, fn) - } - } -} - -// Page returns page information for a given page number. -// This is only safe for concurrent use when used by a writable transaction. -func (tx *Tx) Page(id int) (*PageInfo, error) { - if tx.db == nil { - return nil, ErrTxClosed - } else if pgid(id) >= tx.meta.pgid { - return nil, nil - } - - // Build the page info. - p := tx.db.page(pgid(id)) - info := &PageInfo{ - ID: id, - Count: int(p.count), - OverflowCount: int(p.overflow), - } - - // Determine the type (or if it's free). - if tx.db.freelist.freed(pgid(id)) { - info.Type = "free" - } else { - info.Type = p.typ() - } - - return info, nil -} - -// TxStats represents statistics about the actions performed by the transaction. -type TxStats struct { - // Page statistics. - PageCount int // number of page allocations - PageAlloc int // total bytes allocated - - // Cursor statistics. - CursorCount int // number of cursors created - - // Node statistics - NodeCount int // number of node allocations - NodeDeref int // number of node dereferences - - // Rebalance statistics. - Rebalance int // number of node rebalances - RebalanceTime time.Duration // total time spent rebalancing - - // Split/Spill statistics. - Split int // number of nodes split - Spill int // number of nodes spilled - SpillTime time.Duration // total time spent spilling - - // Write statistics. - Write int // number of writes performed - WriteTime time.Duration // total time spent writing to disk -} - -func (s *TxStats) add(other *TxStats) { - s.PageCount += other.PageCount - s.PageAlloc += other.PageAlloc - s.CursorCount += other.CursorCount - s.NodeCount += other.NodeCount - s.NodeDeref += other.NodeDeref - s.Rebalance += other.Rebalance - s.RebalanceTime += other.RebalanceTime - s.Split += other.Split - s.Spill += other.Spill - s.SpillTime += other.SpillTime - s.Write += other.Write - s.WriteTime += other.WriteTime -} - -// Sub calculates and returns the difference between two sets of transaction stats. -// This is useful when obtaining stats at two different points and time and -// you need the performance counters that occurred within that time span. -func (s *TxStats) Sub(other *TxStats) TxStats { - var diff TxStats - diff.PageCount = s.PageCount - other.PageCount - diff.PageAlloc = s.PageAlloc - other.PageAlloc - diff.CursorCount = s.CursorCount - other.CursorCount - diff.NodeCount = s.NodeCount - other.NodeCount - diff.NodeDeref = s.NodeDeref - other.NodeDeref - diff.Rebalance = s.Rebalance - other.Rebalance - diff.RebalanceTime = s.RebalanceTime - other.RebalanceTime - diff.Split = s.Split - other.Split - diff.Spill = s.Spill - other.Spill - diff.SpillTime = s.SpillTime - other.SpillTime - diff.Write = s.Write - other.Write - diff.WriteTime = s.WriteTime - other.WriteTime - return diff -} diff --git a/components/engine/vendor/github.com/containerd/containerd/README.md b/components/engine/vendor/github.com/containerd/containerd/README.md index d068fa3afde..c4d9dffdbdc 100644 --- a/components/engine/vendor/github.com/containerd/containerd/README.md +++ b/components/engine/vendor/github.com/containerd/containerd/README.md @@ -2,6 +2,7 @@ [![GoDoc](https://godoc.org/github.com/containerd/containerd?status.svg)](https://godoc.org/github.com/containerd/containerd) [![Build Status](https://travis-ci.org/containerd/containerd.svg?branch=master)](https://travis-ci.org/containerd/containerd) +[![Windows Build Status](https://ci.appveyor.com/api/projects/status/github/containerd/containerd?branch=master&svg=true)](https://ci.appveyor.com/project/mlaventure/containerd-3g73f?branch=master) [![FOSSA Status](https://app.fossa.io/api/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fcontainerd%2Fcontainerd.svg?type=shield)](https://app.fossa.io/projects/git%2Bhttps%3A%2F%2Fgithub.com%2Fcontainerd%2Fcontainerd?ref=badge_shield) [![Go Report Card](https://goreportcard.com/badge/github.com/containerd/containerd)](https://goreportcard.com/report/github.com/containerd/containerd) [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/1271/badge)](https://bestpractices.coreinfrastructure.org/projects/1271) @@ -223,7 +224,7 @@ This will be the best place to discuss design and implementation. For sync communication we have a community slack with a #containerd channel that everyone is welcome to join and chat about development. -**Slack:** https://dockr.ly/community +**Slack:** https://join.slack.com/t/dockercommunity/shared_invite/enQtNDM4NjAwNDMyOTUwLWZlMDZmYWRjZjk4Zjc5ZGQ5NWZkOWI1Yjk2NGE3ZWVlYjYxM2VhYjczOWIyZDFhZTE3NTUwZWQzMjhmNGYyZTg ### Reporting security issues diff --git a/components/engine/vendor/github.com/containerd/containerd/api/services/content/v1/content.pb.go b/components/engine/vendor/github.com/containerd/containerd/api/services/content/v1/content.pb.go index b539ae1aee4..ec08c3b233d 100644 --- a/components/engine/vendor/github.com/containerd/containerd/api/services/content/v1/content.pb.go +++ b/components/engine/vendor/github.com/containerd/containerd/api/services/content/v1/content.pb.go @@ -443,7 +443,7 @@ type ContentClient interface { // Only one active stream may exist at a time for each ref. // // Once a write stream has started, it may only write to a single ref, thus - // once a stream is started, the ref may be ommitted on subsequent writes. + // once a stream is started, the ref may be omitted on subsequent writes. // // For any write transaction represented by a ref, only a single write may // be made to a given offset. If overlapping writes occur, it is an error. @@ -658,7 +658,7 @@ type ContentServer interface { // Only one active stream may exist at a time for each ref. // // Once a write stream has started, it may only write to a single ref, thus - // once a stream is started, the ref may be ommitted on subsequent writes. + // once a stream is started, the ref may be omitted on subsequent writes. // // For any write transaction represented by a ref, only a single write may // be made to a given offset. If overlapping writes occur, it is an error. diff --git a/components/engine/vendor/github.com/containerd/containerd/api/services/content/v1/content.proto b/components/engine/vendor/github.com/containerd/containerd/api/services/content/v1/content.proto index 4f1187145bb..086b3e39b1f 100644 --- a/components/engine/vendor/github.com/containerd/containerd/api/services/content/v1/content.proto +++ b/components/engine/vendor/github.com/containerd/containerd/api/services/content/v1/content.proto @@ -55,7 +55,7 @@ service Content { // Only one active stream may exist at a time for each ref. // // Once a write stream has started, it may only write to a single ref, thus - // once a stream is started, the ref may be ommitted on subsequent writes. + // once a stream is started, the ref may be omitted on subsequent writes. // // For any write transaction represented by a ref, only a single write may // be made to a given offset. If overlapping writes occur, it is an error. diff --git a/components/engine/vendor/github.com/containerd/containerd/api/services/events/v1/events.pb.go b/components/engine/vendor/github.com/containerd/containerd/api/services/events/v1/events.pb.go index 0173f394ea9..d6a7b38a874 100644 --- a/components/engine/vendor/github.com/containerd/containerd/api/services/events/v1/events.pb.go +++ b/components/engine/vendor/github.com/containerd/containerd/api/services/events/v1/events.pb.go @@ -141,7 +141,7 @@ type EventsClient interface { // Forward sends an event that has already been packaged into an envelope // with a timestamp and namespace. // - // This is useful if earlier timestamping is required or when fowarding on + // This is useful if earlier timestamping is required or when forwarding on // behalf of another component, namespace or publisher. Forward(ctx context.Context, in *ForwardRequest, opts ...grpc.CallOption) (*google_protobuf2.Empty, error) // Subscribe to a stream of events, possibly returning only that match any @@ -223,7 +223,7 @@ type EventsServer interface { // Forward sends an event that has already been packaged into an envelope // with a timestamp and namespace. // - // This is useful if earlier timestamping is required or when fowarding on + // This is useful if earlier timestamping is required or when forwarding on // behalf of another component, namespace or publisher. Forward(context.Context, *ForwardRequest) (*google_protobuf2.Empty, error) // Subscribe to a stream of events, possibly returning only that match any diff --git a/components/engine/vendor/github.com/containerd/containerd/api/services/events/v1/events.proto b/components/engine/vendor/github.com/containerd/containerd/api/services/events/v1/events.proto index 58f2dadeb57..1959c8e3955 100644 --- a/components/engine/vendor/github.com/containerd/containerd/api/services/events/v1/events.proto +++ b/components/engine/vendor/github.com/containerd/containerd/api/services/events/v1/events.proto @@ -20,7 +20,7 @@ service Events { // Forward sends an event that has already been packaged into an envelope // with a timestamp and namespace. // - // This is useful if earlier timestamping is required or when fowarding on + // This is useful if earlier timestamping is required or when forwarding on // behalf of another component, namespace or publisher. rpc Forward(ForwardRequest) returns (google.protobuf.Empty); diff --git a/components/engine/vendor/github.com/containerd/containerd/archive/compression/compression.go b/components/engine/vendor/github.com/containerd/containerd/archive/compression/compression.go index bd50f083b20..bd64e0353d0 100644 --- a/components/engine/vendor/github.com/containerd/containerd/archive/compression/compression.go +++ b/components/engine/vendor/github.com/containerd/containerd/archive/compression/compression.go @@ -20,9 +20,15 @@ import ( "bufio" "bytes" "compress/gzip" + "context" "fmt" "io" + "os" + "os/exec" + "strconv" "sync" + + "github.com/containerd/containerd/log" ) type ( @@ -37,6 +43,13 @@ const ( Gzip ) +const disablePigzEnv = "CONTAINERD_DISABLE_PIGZ" + +var ( + initPigz sync.Once + unpigzPath string +) + var ( bufioReader32KPool = &sync.Pool{ New: func() interface{} { return bufio.NewReaderSize(nil, 32*1024) }, @@ -120,11 +133,18 @@ func DecompressStream(archive io.Reader) (DecompressReadCloser, error) { readBufWrapper := &readCloserWrapper{buf, compression, closer} return readBufWrapper, nil case Gzip: - gzReader, err := gzip.NewReader(buf) + ctx, cancel := context.WithCancel(context.Background()) + gzReader, err := gzipDecompress(ctx, buf) if err != nil { + cancel() return nil, err } - readBufWrapper := &readCloserWrapper{gzReader, compression, closer} + + readBufWrapper := &readCloserWrapper{gzReader, compression, func() error { + cancel() + return closer() + }} + return readBufWrapper, nil default: return nil, fmt.Errorf("unsupported compression format %s", (&compression).Extension()) @@ -151,3 +171,67 @@ func (compression *Compression) Extension() string { } return "" } + +func gzipDecompress(ctx context.Context, buf io.Reader) (io.ReadCloser, error) { + initPigz.Do(func() { + if unpigzPath = detectPigz(); unpigzPath != "" { + log.L.Debug("using pigz for decompression") + } + }) + + if unpigzPath == "" { + return gzip.NewReader(buf) + } + + return cmdStream(exec.CommandContext(ctx, unpigzPath, "-d", "-c"), buf) +} + +func cmdStream(cmd *exec.Cmd, in io.Reader) (io.ReadCloser, error) { + reader, writer := io.Pipe() + + cmd.Stdin = in + cmd.Stdout = writer + + var errBuf bytes.Buffer + cmd.Stderr = &errBuf + + if err := cmd.Start(); err != nil { + return nil, err + } + + go func() { + if err := cmd.Wait(); err != nil { + writer.CloseWithError(fmt.Errorf("%s: %s", err, errBuf.String())) + } else { + writer.Close() + } + }() + + return reader, nil +} + +func detectPigz() string { + path, err := exec.LookPath("unpigz") + if err != nil { + log.L.WithError(err).Debug("unpigz not found, falling back to go gzip") + return "" + } + + // Check if pigz disabled via CONTAINERD_DISABLE_PIGZ env variable + value := os.Getenv(disablePigzEnv) + if value == "" { + return path + } + + disable, err := strconv.ParseBool(value) + if err != nil { + log.L.WithError(err).Warnf("could not parse %s: %s", disablePigzEnv, value) + return path + } + + if disable { + return "" + } + + return path +} diff --git a/components/engine/vendor/github.com/containerd/containerd/cio/io.go b/components/engine/vendor/github.com/containerd/containerd/cio/io.go index 10ad36ba87d..a9c6d2b156c 100644 --- a/components/engine/vendor/github.com/containerd/containerd/cio/io.go +++ b/components/engine/vendor/github.com/containerd/containerd/cio/io.go @@ -141,6 +141,15 @@ func NewCreator(opts ...Opt) Creator { if err != nil { return nil, err } + if streams.Stdin == nil { + fifos.Stdin = "" + } + if streams.Stdout == nil { + fifos.Stdout = "" + } + if streams.Stderr == nil { + fifos.Stderr = "" + } return copyIO(fifos, streams) } } diff --git a/components/engine/vendor/github.com/containerd/containerd/container_opts_unix.go b/components/engine/vendor/github.com/containerd/containerd/container_opts_unix.go index a4935b2b454..c0622f67fe8 100644 --- a/components/engine/vendor/github.com/containerd/containerd/container_opts_unix.go +++ b/components/engine/vendor/github.com/containerd/containerd/container_opts_unix.go @@ -20,25 +20,21 @@ package containerd import ( "context" - "encoding/json" "fmt" "os" "path/filepath" "syscall" - "github.com/containerd/containerd/api/types" "github.com/containerd/containerd/containers" "github.com/containerd/containerd/content" "github.com/containerd/containerd/errdefs" "github.com/containerd/containerd/images" "github.com/containerd/containerd/mount" "github.com/containerd/containerd/platforms" - "github.com/containerd/containerd/runtime/linux/runctypes" "github.com/gogo/protobuf/proto" protobuf "github.com/gogo/protobuf/types" "github.com/opencontainers/image-spec/identity" "github.com/opencontainers/image-spec/specs-go/v1" - ocispec "github.com/opencontainers/image-spec/specs-go/v1" "github.com/pkg/errors" ) @@ -105,44 +101,6 @@ func WithCheckpoint(im Image, snapshotKey string) NewContainerOpts { } } -// WithTaskCheckpoint allows a task to be created with live runtime and memory data from a -// previous checkpoint. Additional software such as CRIU may be required to -// restore a task from a checkpoint -func WithTaskCheckpoint(im Image) NewTaskOpts { - return func(ctx context.Context, c *Client, info *TaskInfo) error { - desc := im.Target() - id := desc.Digest - index, err := decodeIndex(ctx, c.ContentStore(), desc) - if err != nil { - return err - } - for _, m := range index.Manifests { - if m.MediaType == images.MediaTypeContainerd1Checkpoint { - info.Checkpoint = &types.Descriptor{ - MediaType: m.MediaType, - Size_: m.Size, - Digest: m.Digest, - } - return nil - } - } - return fmt.Errorf("checkpoint not found in index %s", id) - } -} - -func decodeIndex(ctx context.Context, store content.Provider, desc ocispec.Descriptor) (*v1.Index, error) { - var index v1.Index - p, err := content.ReadBlob(ctx, store, desc) - if err != nil { - return nil, err - } - if err := json.Unmarshal(p, &index); err != nil { - return nil, err - } - - return &index, nil -} - // WithRemappedSnapshot creates a new snapshot and remaps the uid/gid for the // filesystem to be used by a container with user namespaces func WithRemappedSnapshot(id string, i Image, uid, gid uint32) NewContainerOpts { @@ -221,19 +179,3 @@ func incrementFS(root string, uidInc, gidInc uint32) filepath.WalkFunc { return os.Lchown(path, u, g) } } - -// WithNoPivotRoot instructs the runtime not to you pivot_root -func WithNoPivotRoot(_ context.Context, _ *Client, info *TaskInfo) error { - if info.Options == nil { - info.Options = &runctypes.CreateOptions{ - NoPivotRoot: true, - } - return nil - } - copts, ok := info.Options.(*runctypes.CreateOptions) - if !ok { - return errors.New("invalid options type, expected runctypes.CreateOptions") - } - copts.NoPivotRoot = true - return nil -} diff --git a/components/engine/vendor/github.com/containerd/containerd/content/helpers.go b/components/engine/vendor/github.com/containerd/containerd/content/helpers.go index 819b7ea1e32..3e231408d55 100644 --- a/components/engine/vendor/github.com/containerd/containerd/content/helpers.go +++ b/components/engine/vendor/github.com/containerd/containerd/content/helpers.go @@ -70,7 +70,7 @@ func WriteBlob(ctx context.Context, cs Ingester, ref string, r io.Reader, desc o cw, err := OpenWriter(ctx, cs, WithRef(ref), WithDescriptor(desc)) if err != nil { if !errdefs.IsAlreadyExists(err) { - return err + return errors.Wrap(err, "failed to open writer") } return nil // all ready present @@ -127,7 +127,7 @@ func OpenWriter(ctx context.Context, cs Ingester, opts ...WriterOpt) (Writer, er func Copy(ctx context.Context, cw Writer, r io.Reader, size int64, expected digest.Digest, opts ...Opt) error { ws, err := cw.Status() if err != nil { - return err + return errors.Wrap(err, "failed to get status") } if ws.Offset > 0 { @@ -138,7 +138,7 @@ func Copy(ctx context.Context, cw Writer, r io.Reader, size int64, expected dige } if _, err := copyWithBuffer(cw, r); err != nil { - return err + return errors.Wrap(err, "failed to copy") } if err := cw.Commit(ctx, size, expected, opts...); err != nil { diff --git a/components/engine/vendor/github.com/containerd/containerd/content/local/store.go b/components/engine/vendor/github.com/containerd/containerd/content/local/store.go index 6df3df6184c..7fa9bb736a9 100644 --- a/components/engine/vendor/github.com/containerd/containerd/content/local/store.go +++ b/components/engine/vendor/github.com/containerd/containerd/content/local/store.go @@ -33,6 +33,8 @@ import ( "github.com/containerd/containerd/errdefs" "github.com/containerd/containerd/filters" "github.com/containerd/containerd/log" + + "github.com/containerd/continuity" digest "github.com/opencontainers/go-digest" ocispec "github.com/opencontainers/image-spec/specs-go/v1" "github.com/pkg/errors" @@ -651,5 +653,5 @@ func writeTimestampFile(p string, t time.Time) error { return err } - return ioutil.WriteFile(p, b, 0666) + return continuity.AtomicWriteFile(p, b, 0666) } diff --git a/components/engine/vendor/github.com/containerd/containerd/content/local/writer.go b/components/engine/vendor/github.com/containerd/containerd/content/local/writer.go index a6579a9d210..10df4a4c540 100644 --- a/components/engine/vendor/github.com/containerd/containerd/content/local/writer.go +++ b/components/engine/vendor/github.com/containerd/containerd/content/local/writer.go @@ -132,11 +132,11 @@ func (w *writer) Commit(ctx context.Context, size int64, expected digest.Digest, // clean up!! defer os.RemoveAll(w.path) + if _, err := os.Stat(target); err == nil { + // collision with the target file! + return errors.Wrapf(errdefs.ErrAlreadyExists, "content %v", dgst) + } if err := os.Rename(ingest, target); err != nil { - if os.IsExist(err) { - // collision with the target file! - return errors.Wrapf(errdefs.ErrAlreadyExists, "content %v", dgst) - } return err } commitTime := time.Now() diff --git a/components/engine/vendor/github.com/containerd/containerd/content/proxy/content_writer.go b/components/engine/vendor/github.com/containerd/containerd/content/proxy/content_writer.go index 6d35ba61a87..5434a156864 100644 --- a/components/engine/vendor/github.com/containerd/containerd/content/proxy/content_writer.go +++ b/components/engine/vendor/github.com/containerd/containerd/content/proxy/content_writer.go @@ -57,7 +57,7 @@ func (rw *remoteWriter) Status() (content.Status, error) { Action: contentapi.WriteActionStat, }) if err != nil { - return content.Status{}, errors.Wrap(err, "error getting writer status") + return content.Status{}, errors.Wrap(errdefs.FromGRPC(err), "error getting writer status") } return content.Status{ @@ -82,7 +82,7 @@ func (rw *remoteWriter) Write(p []byte) (n int, err error) { Data: p, }) if err != nil { - return 0, err + return 0, errors.Wrap(errdefs.FromGRPC(err), "failed to send write") } n = int(resp.Offset - offset) @@ -112,7 +112,7 @@ func (rw *remoteWriter) Commit(ctx context.Context, size int64, expected digest. Labels: base.Labels, }) if err != nil { - return errdefs.FromGRPC(err) + return errors.Wrap(errdefs.FromGRPC(err), "commit failed") } if size != 0 && resp.Offset != size { diff --git a/components/engine/vendor/github.com/containerd/containerd/contrib/seccomp/seccomp.go b/components/engine/vendor/github.com/containerd/containerd/contrib/seccomp/seccomp.go index 2a1806cf876..4619681f459 100644 --- a/components/engine/vendor/github.com/containerd/containerd/contrib/seccomp/seccomp.go +++ b/components/engine/vendor/github.com/containerd/containerd/contrib/seccomp/seccomp.go @@ -30,7 +30,7 @@ import ( ) // WithProfile receives the name of a file stored on disk comprising a json -// formated seccomp profile, as specified by the opencontainers/runtime-spec. +// formatted seccomp profile, as specified by the opencontainers/runtime-spec. // The profile is read from the file, unmarshaled, and set to the spec. func WithProfile(profile string) oci.SpecOpts { return func(_ context.Context, _ oci.Client, _ *containers.Container, s *specs.Spec) error { diff --git a/components/engine/vendor/github.com/containerd/containerd/events/exchange/exchange.go b/components/engine/vendor/github.com/containerd/containerd/events/exchange/exchange.go index 51c760f0456..95d21b7df6b 100644 --- a/components/engine/vendor/github.com/containerd/containerd/events/exchange/exchange.go +++ b/components/engine/vendor/github.com/containerd/containerd/events/exchange/exchange.go @@ -52,7 +52,7 @@ var _ events.Subscriber = &Exchange{} // Forward accepts an envelope to be direcly distributed on the exchange. // -// This is useful when an event is forwaded on behalf of another namespace or +// This is useful when an event is forwarded on behalf of another namespace or // when the event is propagated on behalf of another publisher. func (e *Exchange) Forward(ctx context.Context, envelope *events.Envelope) (err error) { if err := validateEnvelope(envelope); err != nil { diff --git a/components/engine/vendor/github.com/containerd/containerd/export.go b/components/engine/vendor/github.com/containerd/containerd/export.go new file mode 100644 index 00000000000..bfc25316ca9 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/containerd/export.go @@ -0,0 +1,58 @@ +/* + Copyright The containerd Authors. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +package containerd + +import ( + "context" + "io" + + "github.com/containerd/containerd/images" + ocispec "github.com/opencontainers/image-spec/specs-go/v1" + "github.com/pkg/errors" +) + +type exportOpts struct { +} + +// ExportOpt allows the caller to specify export-specific options +type ExportOpt func(c *exportOpts) error + +func resolveExportOpt(opts ...ExportOpt) (exportOpts, error) { + var eopts exportOpts + for _, o := range opts { + if err := o(&eopts); err != nil { + return eopts, err + } + } + return eopts, nil +} + +// Export exports an image to a Tar stream. +// OCI format is used by default. +// It is up to caller to put "org.opencontainers.image.ref.name" annotation to desc. +// TODO(AkihiroSuda): support exporting multiple descriptors at once to a single archive stream. +func (c *Client) Export(ctx context.Context, exporter images.Exporter, desc ocispec.Descriptor, opts ...ExportOpt) (io.ReadCloser, error) { + _, err := resolveExportOpt(opts...) // unused now + if err != nil { + return nil, err + } + pr, pw := io.Pipe() + go func() { + pw.CloseWithError(errors.Wrap(exporter.Export(ctx, c.ContentStore(), desc, pw), "export failed")) + }() + return pr, nil +} diff --git a/components/engine/vendor/github.com/containerd/containerd/images/archive/importer.go b/components/engine/vendor/github.com/containerd/containerd/images/archive/importer.go new file mode 100644 index 00000000000..59514c66a74 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/containerd/images/archive/importer.go @@ -0,0 +1,254 @@ +/* + Copyright The containerd Authors. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +// Package archive provides a Docker and OCI compatible importer +package archive + +import ( + "archive/tar" + "bytes" + "context" + "encoding/json" + "io" + "io/ioutil" + "path" + + "github.com/containerd/containerd/archive/compression" + "github.com/containerd/containerd/content" + "github.com/containerd/containerd/images" + "github.com/containerd/containerd/log" + digest "github.com/opencontainers/go-digest" + specs "github.com/opencontainers/image-spec/specs-go" + ocispec "github.com/opencontainers/image-spec/specs-go/v1" + "github.com/pkg/errors" +) + +// ImportIndex imports an index from a tar achive image bundle +// - implements Docker v1.1, v1.2 and OCI v1. +// - prefers OCI v1 when provided +// - creates OCI index for Docker formats +// - normalizes Docker references and adds as OCI ref name +// e.g. alpine:latest -> docker.io/library/alpine:latest +// - existing OCI reference names are untouched +// - TODO: support option to compress layers on ingest +func ImportIndex(ctx context.Context, store content.Store, reader io.Reader) (ocispec.Descriptor, error) { + var ( + tr = tar.NewReader(reader) + + ociLayout ocispec.ImageLayout + mfsts []struct { + Config string + RepoTags []string + Layers []string + } + symlinks = make(map[string]string) + blobs = make(map[string]ocispec.Descriptor) + ) + for { + hdr, err := tr.Next() + if err == io.EOF { + break + } + if err != nil { + return ocispec.Descriptor{}, err + } + if hdr.Typeflag == tar.TypeSymlink { + symlinks[hdr.Name] = path.Join(path.Dir(hdr.Name), hdr.Linkname) + } + + if hdr.Typeflag != tar.TypeReg && hdr.Typeflag != tar.TypeRegA { + if hdr.Typeflag != tar.TypeDir { + log.G(ctx).WithField("file", hdr.Name).Debug("file type ignored") + } + continue + } + + hdrName := path.Clean(hdr.Name) + if hdrName == ocispec.ImageLayoutFile { + if err = onUntarJSON(tr, &ociLayout); err != nil { + return ocispec.Descriptor{}, errors.Wrapf(err, "untar oci layout %q", hdr.Name) + } + } else if hdrName == "manifest.json" { + if err = onUntarJSON(tr, &mfsts); err != nil { + return ocispec.Descriptor{}, errors.Wrapf(err, "untar manifest %q", hdr.Name) + } + } else { + dgst, err := onUntarBlob(ctx, tr, store, hdr.Size, "tar-"+hdrName) + if err != nil { + return ocispec.Descriptor{}, errors.Wrapf(err, "failed to ingest %q", hdr.Name) + } + + blobs[hdrName] = ocispec.Descriptor{ + Digest: dgst, + Size: hdr.Size, + } + } + } + + // If OCI layout was given, interpret the tar as an OCI layout. + // When not provided, the layout of the tar will be interpretted + // as Docker v1.1 or v1.2. + if ociLayout.Version != "" { + if ociLayout.Version != ocispec.ImageLayoutVersion { + return ocispec.Descriptor{}, errors.Errorf("unsupported OCI version %s", ociLayout.Version) + } + + idx, ok := blobs["index.json"] + if !ok { + return ocispec.Descriptor{}, errors.Errorf("missing index.json in OCI layout %s", ocispec.ImageLayoutVersion) + } + + idx.MediaType = ocispec.MediaTypeImageIndex + return idx, nil + } + + for name, linkname := range symlinks { + desc, ok := blobs[linkname] + if !ok { + return ocispec.Descriptor{}, errors.Errorf("no target for symlink layer from %q to %q", name, linkname) + } + blobs[name] = desc + } + + var idx ocispec.Index + for _, mfst := range mfsts { + config, ok := blobs[mfst.Config] + if !ok { + return ocispec.Descriptor{}, errors.Errorf("image config %q not found", mfst.Config) + } + config.MediaType = ocispec.MediaTypeImageConfig + + layers, err := resolveLayers(ctx, store, mfst.Layers, blobs) + if err != nil { + return ocispec.Descriptor{}, errors.Wrap(err, "failed to resolve layers") + } + + manifest := ocispec.Manifest{ + Versioned: specs.Versioned{ + SchemaVersion: 2, + }, + Config: config, + Layers: layers, + } + + desc, err := writeManifest(ctx, store, manifest, ocispec.MediaTypeImageManifest) + if err != nil { + return ocispec.Descriptor{}, errors.Wrap(err, "write docker manifest") + } + + platforms, err := images.Platforms(ctx, store, desc) + if err != nil { + return ocispec.Descriptor{}, errors.Wrap(err, "unable to resolve platform") + } + if len(platforms) > 0 { + // Only one platform can be resolved from non-index manifest, + // The platform can only come from the config included above, + // if the config has no platform it can be safely ommitted. + desc.Platform = &platforms[0] + } + + if len(mfst.RepoTags) == 0 { + idx.Manifests = append(idx.Manifests, desc) + } else { + // Add descriptor per tag + for _, ref := range mfst.RepoTags { + mfstdesc := desc + + normalized, err := normalizeReference(ref) + if err != nil { + return ocispec.Descriptor{}, err + } + + mfstdesc.Annotations = map[string]string{ + ocispec.AnnotationRefName: normalized, + } + + idx.Manifests = append(idx.Manifests, mfstdesc) + } + } + } + + return writeManifest(ctx, store, idx, ocispec.MediaTypeImageIndex) +} + +func onUntarJSON(r io.Reader, j interface{}) error { + b, err := ioutil.ReadAll(r) + if err != nil { + return err + } + if err := json.Unmarshal(b, j); err != nil { + return err + } + return nil +} + +func onUntarBlob(ctx context.Context, r io.Reader, store content.Ingester, size int64, ref string) (digest.Digest, error) { + dgstr := digest.Canonical.Digester() + + if err := content.WriteBlob(ctx, store, ref, io.TeeReader(r, dgstr.Hash()), ocispec.Descriptor{Size: size}); err != nil { + return "", err + } + + return dgstr.Digest(), nil +} + +func resolveLayers(ctx context.Context, store content.Store, layerFiles []string, blobs map[string]ocispec.Descriptor) ([]ocispec.Descriptor, error) { + var layers []ocispec.Descriptor + for _, f := range layerFiles { + desc, ok := blobs[f] + if !ok { + return nil, errors.Errorf("layer %q not found", f) + } + + // Open blob, resolve media type + ra, err := store.ReaderAt(ctx, desc) + if err != nil { + return nil, errors.Wrapf(err, "failed to open %q (%s)", f, desc.Digest) + } + s, err := compression.DecompressStream(content.NewReader(ra)) + if err != nil { + return nil, errors.Wrapf(err, "failed to detect compression for %q", f) + } + if s.GetCompression() == compression.Uncompressed { + // TODO: Support compressing and writing back to content store + desc.MediaType = ocispec.MediaTypeImageLayer + } else { + desc.MediaType = ocispec.MediaTypeImageLayerGzip + } + s.Close() + + layers = append(layers, desc) + } + return layers, nil +} + +func writeManifest(ctx context.Context, cs content.Ingester, manifest interface{}, mediaType string) (ocispec.Descriptor, error) { + manifestBytes, err := json.Marshal(manifest) + if err != nil { + return ocispec.Descriptor{}, err + } + + desc := ocispec.Descriptor{ + MediaType: mediaType, + Digest: digest.FromBytes(manifestBytes), + Size: int64(len(manifestBytes)), + } + if err := content.WriteBlob(ctx, cs, "manifest-"+desc.Digest.String(), bytes.NewReader(manifestBytes), desc); err != nil { + return ocispec.Descriptor{}, err + } + + return desc, nil +} diff --git a/components/engine/vendor/github.com/containerd/containerd/images/archive/reference.go b/components/engine/vendor/github.com/containerd/containerd/images/archive/reference.go new file mode 100644 index 00000000000..0b1310181e4 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/containerd/images/archive/reference.go @@ -0,0 +1,86 @@ +/* + Copyright The containerd Authors. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +package archive + +import ( + "strings" + + "github.com/containerd/cri/pkg/util" + digest "github.com/opencontainers/go-digest" + "github.com/pkg/errors" +) + +// FilterRefPrefix restricts references to having the given image +// prefix. Tag-only references will have the prefix prepended. +func FilterRefPrefix(image string) func(string) string { + return refTranslator(image, true) +} + +// AddRefPrefix prepends the given image prefix to tag-only references, +// while leaving returning full references unmodified. +func AddRefPrefix(image string) func(string) string { + return refTranslator(image, false) +} + +// refTranslator creates a reference which only has a tag or verifies +// a full reference. +func refTranslator(image string, checkPrefix bool) func(string) string { + return func(ref string) string { + // Check if ref is full reference + if strings.ContainsAny(ref, "/:@") { + // If not prefixed, don't include image + if checkPrefix && !isImagePrefix(ref, image) { + return "" + } + return ref + } + return image + ":" + ref + } +} + +func isImagePrefix(s, prefix string) bool { + if !strings.HasPrefix(s, prefix) { + return false + } + if len(s) > len(prefix) { + switch s[len(prefix)] { + case '/', ':', '@': + // Prevent matching partial namespaces + default: + return false + } + } + return true +} + +func normalizeReference(ref string) (string, error) { + // TODO: Replace this function to not depend on reference package + normalized, err := util.NormalizeImageRef(ref) + if err != nil { + return "", errors.Wrapf(err, "normalize image ref %q", ref) + } + + return normalized.String(), nil +} + +// DigestTranslator creates a digest reference by adding the +// digest to an image name +func DigestTranslator(prefix string) func(digest.Digest) string { + return func(dgst digest.Digest) string { + return prefix + "@" + dgst.String() + } +} diff --git a/components/engine/vendor/github.com/containerd/containerd/images/importexport.go b/components/engine/vendor/github.com/containerd/containerd/images/importexport.go index 04a55fd383f..843adcadc7e 100644 --- a/components/engine/vendor/github.com/containerd/containerd/images/importexport.go +++ b/components/engine/vendor/github.com/containerd/containerd/images/importexport.go @@ -27,7 +27,7 @@ import ( // Importer is the interface for image importer. type Importer interface { // Import imports an image from a tar stream. - Import(ctx context.Context, store content.Store, reader io.Reader) ([]Image, error) + Import(ctx context.Context, store content.Store, reader io.Reader) (ocispec.Descriptor, error) } // Exporter is the interface for image exporter. diff --git a/components/engine/vendor/github.com/containerd/containerd/import.go b/components/engine/vendor/github.com/containerd/containerd/import.go index e4ac00cee3c..36505682409 100644 --- a/components/engine/vendor/github.com/containerd/containerd/import.go +++ b/components/engine/vendor/github.com/containerd/containerd/import.go @@ -18,36 +18,61 @@ package containerd import ( "context" + "encoding/json" "io" + "github.com/containerd/containerd/content" "github.com/containerd/containerd/errdefs" "github.com/containerd/containerd/images" + "github.com/containerd/containerd/images/archive" + digest "github.com/opencontainers/go-digest" ocispec "github.com/opencontainers/image-spec/specs-go/v1" ) type importOpts struct { + indexName string + imageRefT func(string) string + dgstRefT func(digest.Digest) string } // ImportOpt allows the caller to specify import specific options -type ImportOpt func(c *importOpts) error +type ImportOpt func(*importOpts) error + +// WithImageRefTranslator is used to translate the index reference +// to an image reference for the image store. +func WithImageRefTranslator(f func(string) string) ImportOpt { + return func(c *importOpts) error { + c.imageRefT = f + return nil + } +} -func resolveImportOpt(opts ...ImportOpt) (importOpts, error) { - var iopts importOpts - for _, o := range opts { - if err := o(&iopts); err != nil { - return iopts, err - } +// WithDigestRef is used to create digest images for each +// manifest in the index. +func WithDigestRef(f func(digest.Digest) string) ImportOpt { + return func(c *importOpts) error { + c.dgstRefT = f + return nil + } +} + +// WithIndexName creates a tag pointing to the imported index +func WithIndexName(name string) ImportOpt { + return func(c *importOpts) error { + c.indexName = name + return nil } - return iopts, nil } // Import imports an image from a Tar stream using reader. // Caller needs to specify importer. Future version may use oci.v1 as the default. // Note that unreferrenced blobs may be imported to the content store as well. -func (c *Client) Import(ctx context.Context, importer images.Importer, reader io.Reader, opts ...ImportOpt) ([]Image, error) { - _, err := resolveImportOpt(opts...) // unused now - if err != nil { - return nil, err +func (c *Client) Import(ctx context.Context, reader io.Reader, opts ...ImportOpt) ([]images.Image, error) { + var iopts importOpts + for _, o := range opts { + if err := o(&iopts); err != nil { + return nil, err + } } ctx, done, err := c.WithLease(ctx) @@ -56,63 +81,86 @@ func (c *Client) Import(ctx context.Context, importer images.Importer, reader io } defer done(ctx) - imgrecs, err := importer.Import(ctx, c.ContentStore(), reader) + index, err := archive.ImportIndex(ctx, c.ContentStore(), reader) if err != nil { - // is.Update() is not called on error return nil, err } - is := c.ImageService() - var images []Image - for _, imgrec := range imgrecs { - if updated, err := is.Update(ctx, imgrec, "target"); err != nil { - if !errdefs.IsNotFound(err) { - return nil, err - } + var ( + imgs []images.Image + cs = c.ContentStore() + is = c.ImageService() + ) + + if iopts.indexName != "" { + imgs = append(imgs, images.Image{ + Name: iopts.indexName, + Target: index, + }) + } - created, err := is.Create(ctx, imgrec) - if err != nil { - return nil, err - } + var handler images.HandlerFunc + handler = func(ctx context.Context, desc ocispec.Descriptor) ([]ocispec.Descriptor, error) { + // Only save images at top level + if desc.Digest != index.Digest { + return images.Children(ctx, cs, desc) + } + + p, err := content.ReadBlob(ctx, cs, desc) + if err != nil { + return nil, err + } - imgrec = created - } else { - imgrec = updated + var idx ocispec.Index + if err := json.Unmarshal(p, &idx); err != nil { + return nil, err } - images = append(images, NewImage(c, imgrec)) + for _, m := range idx.Manifests { + if ref := m.Annotations[ocispec.AnnotationRefName]; ref != "" { + if iopts.imageRefT != nil { + ref = iopts.imageRefT(ref) + } + if ref != "" { + imgs = append(imgs, images.Image{ + Name: ref, + Target: m, + }) + } + } + if iopts.dgstRefT != nil { + ref := iopts.dgstRefT(m.Digest) + if ref != "" { + imgs = append(imgs, images.Image{ + Name: ref, + Target: m, + }) + } + } + } + + return idx.Manifests, nil } - return images, nil -} -type exportOpts struct { -} + handler = images.SetChildrenLabels(cs, handler) + if err := images.Walk(ctx, handler, index); err != nil { + return nil, err + } -// ExportOpt allows the caller to specify export-specific options -type ExportOpt func(c *exportOpts) error + for i := range imgs { + img, err := is.Update(ctx, imgs[i], "target") + if err != nil { + if !errdefs.IsNotFound(err) { + return nil, err + } -func resolveExportOpt(opts ...ExportOpt) (exportOpts, error) { - var eopts exportOpts - for _, o := range opts { - if err := o(&eopts); err != nil { - return eopts, err + img, err = is.Create(ctx, imgs[i]) + if err != nil { + return nil, err + } } + imgs[i] = img } - return eopts, nil -} -// Export exports an image to a Tar stream. -// OCI format is used by default. -// It is up to caller to put "org.opencontainers.image.ref.name" annotation to desc. -// TODO(AkihiroSuda): support exporting multiple descriptors at once to a single archive stream. -func (c *Client) Export(ctx context.Context, exporter images.Exporter, desc ocispec.Descriptor, opts ...ExportOpt) (io.ReadCloser, error) { - _, err := resolveExportOpt(opts...) // unused now - if err != nil { - return nil, err - } - pr, pw := io.Pipe() - go func() { - pw.CloseWithError(exporter.Export(ctx, c.ContentStore(), desc, pw)) - }() - return pr, nil + return imgs, nil } diff --git a/components/engine/vendor/github.com/containerd/containerd/install.go b/components/engine/vendor/github.com/containerd/containerd/install.go index 2aa8b039469..5e4c6a2c8d4 100644 --- a/components/engine/vendor/github.com/containerd/containerd/install.go +++ b/components/engine/vendor/github.com/containerd/containerd/install.go @@ -33,25 +33,14 @@ import ( // Install a binary image into the opt service func (c *Client) Install(ctx context.Context, image Image, opts ...InstallOpts) error { - resp, err := c.IntrospectionService().Plugins(ctx, &introspectionapi.PluginsRequest{ - Filters: []string{ - "id==opt", - }, - }) - if err != nil { - return err - } - if len(resp.Plugins) != 1 { - return errors.New("opt service not enabled") - } - path := resp.Plugins[0].Exports["path"] - if path == "" { - return errors.New("opt path not exported") - } var config InstallConfig for _, o := range opts { o(&config) } + path, err := c.getInstallPath(ctx, config) + if err != nil { + return err + } var ( cs = image.ContentStore() platform = platforms.Default() @@ -89,3 +78,25 @@ func (c *Client) Install(ctx context.Context, image Image, opts ...InstallOpts) } return nil } + +func (c *Client) getInstallPath(ctx context.Context, config InstallConfig) (string, error) { + if config.Path != "" { + return config.Path, nil + } + resp, err := c.IntrospectionService().Plugins(ctx, &introspectionapi.PluginsRequest{ + Filters: []string{ + "id==opt", + }, + }) + if err != nil { + return "", err + } + if len(resp.Plugins) != 1 { + return "", errors.New("opt service not enabled") + } + path := resp.Plugins[0].Exports["path"] + if path == "" { + return "", errors.New("opt path not exported") + } + return path, nil +} diff --git a/components/engine/vendor/github.com/containerd/containerd/install_opts.go b/components/engine/vendor/github.com/containerd/containerd/install_opts.go index b11e7f3d6d0..b0c9213cb27 100644 --- a/components/engine/vendor/github.com/containerd/containerd/install_opts.go +++ b/components/engine/vendor/github.com/containerd/containerd/install_opts.go @@ -25,6 +25,8 @@ type InstallConfig struct { Libs bool // Replace will overwrite existing binaries or libs in the opt directory Replace bool + // Path to install libs and binaries to + Path string } // WithInstallLibs installs libs from the image @@ -36,3 +38,10 @@ func WithInstallLibs(c *InstallConfig) { func WithInstallReplace(c *InstallConfig) { c.Replace = true } + +// WithInstallPath sets the optional install path +func WithInstallPath(path string) InstallOpts { + return func(c *InstallConfig) { + c.Path = path + } +} diff --git a/components/engine/vendor/github.com/containerd/containerd/metadata/bolt.go b/components/engine/vendor/github.com/containerd/containerd/metadata/bolt.go index 156a33593f4..6ea46086636 100644 --- a/components/engine/vendor/github.com/containerd/containerd/metadata/bolt.go +++ b/components/engine/vendor/github.com/containerd/containerd/metadata/bolt.go @@ -19,8 +19,8 @@ package metadata import ( "context" - "github.com/boltdb/bolt" "github.com/pkg/errors" + bolt "go.etcd.io/bbolt" ) type transactionKey struct{} diff --git a/components/engine/vendor/github.com/containerd/containerd/metadata/boltutil/helpers.go b/components/engine/vendor/github.com/containerd/containerd/metadata/boltutil/helpers.go index 4b2ede87636..1240188577b 100644 --- a/components/engine/vendor/github.com/containerd/containerd/metadata/boltutil/helpers.go +++ b/components/engine/vendor/github.com/containerd/containerd/metadata/boltutil/helpers.go @@ -19,8 +19,8 @@ package boltutil import ( "time" - "github.com/boltdb/bolt" "github.com/pkg/errors" + bolt "go.etcd.io/bbolt" ) var ( diff --git a/components/engine/vendor/github.com/containerd/containerd/metadata/buckets.go b/components/engine/vendor/github.com/containerd/containerd/metadata/buckets.go index fcf4c29597f..51d40a7f360 100644 --- a/components/engine/vendor/github.com/containerd/containerd/metadata/buckets.go +++ b/components/engine/vendor/github.com/containerd/containerd/metadata/buckets.go @@ -17,11 +17,11 @@ package metadata import ( - "github.com/boltdb/bolt" digest "github.com/opencontainers/go-digest" + bolt "go.etcd.io/bbolt" ) -// The layout where a "/" delineates a bucket is desribed in the following +// The layout where a "/" delineates a bucket is described in the following // section. Please try to follow this as closely as possible when adding // functionality. We can bolster this with helpers and more structure if that // becomes an issue. @@ -164,11 +164,11 @@ func getSnapshotterBucket(tx *bolt.Tx, namespace, snapshotter string) *bolt.Buck } func createBlobBucket(tx *bolt.Tx, namespace string, dgst digest.Digest) (*bolt.Bucket, error) { - bkt, err := createBucketIfNotExists(tx, bucketKeyVersion, []byte(namespace), bucketKeyObjectContent, bucketKeyObjectBlob, []byte(dgst.String())) + bkt, err := createBucketIfNotExists(tx, bucketKeyVersion, []byte(namespace), bucketKeyObjectContent, bucketKeyObjectBlob) if err != nil { return nil, err } - return bkt, nil + return bkt.CreateBucket([]byte(dgst.String())) } func getBlobsBucket(tx *bolt.Tx, namespace string) *bolt.Bucket { diff --git a/components/engine/vendor/github.com/containerd/containerd/metadata/containers.go b/components/engine/vendor/github.com/containerd/containerd/metadata/containers.go index 2c9726fc273..6e5622c36f5 100644 --- a/components/engine/vendor/github.com/containerd/containerd/metadata/containers.go +++ b/components/engine/vendor/github.com/containerd/containerd/metadata/containers.go @@ -21,7 +21,6 @@ import ( "strings" "time" - "github.com/boltdb/bolt" "github.com/containerd/containerd/containers" "github.com/containerd/containerd/errdefs" "github.com/containerd/containerd/filters" @@ -32,6 +31,7 @@ import ( "github.com/gogo/protobuf/proto" "github.com/gogo/protobuf/types" "github.com/pkg/errors" + bolt "go.etcd.io/bbolt" ) type containerStore struct { diff --git a/components/engine/vendor/github.com/containerd/containerd/metadata/content.go b/components/engine/vendor/github.com/containerd/containerd/metadata/content.go index 7293f1bfae2..ac4440060b8 100644 --- a/components/engine/vendor/github.com/containerd/containerd/metadata/content.go +++ b/components/engine/vendor/github.com/containerd/containerd/metadata/content.go @@ -23,7 +23,6 @@ import ( "sync" "time" - "github.com/boltdb/bolt" "github.com/containerd/containerd/content" "github.com/containerd/containerd/errdefs" "github.com/containerd/containerd/filters" @@ -34,6 +33,7 @@ import ( digest "github.com/opencontainers/go-digest" ocispec "github.com/opencontainers/image-spec/specs-go/v1" "github.com/pkg/errors" + bolt "go.etcd.io/bbolt" ) type contentStore struct { @@ -592,9 +592,6 @@ func (nw *namespacedWriter) commit(ctx context.Context, tx *bolt.Tx, size int64, } size = nw.desc.Size actual = nw.desc.Digest - if getBlobBucket(tx, nw.namespace, actual) != nil { - return "", errors.Wrapf(errdefs.ErrAlreadyExists, "content %v", actual) - } } else { status, err := nw.w.Status() if err != nil { @@ -606,18 +603,16 @@ func (nw *namespacedWriter) commit(ctx context.Context, tx *bolt.Tx, size int64, size = status.Offset actual = nw.w.Digest() - if err := nw.w.Commit(ctx, size, expected); err != nil { - if !errdefs.IsAlreadyExists(err) { - return "", err - } - if getBlobBucket(tx, nw.namespace, actual) != nil { - return "", errors.Wrapf(errdefs.ErrAlreadyExists, "content %v", actual) - } + if err := nw.w.Commit(ctx, size, expected); err != nil && !errdefs.IsAlreadyExists(err) { + return "", err } } bkt, err := createBlobBucket(tx, nw.namespace, actual) if err != nil { + if err == bolt.ErrBucketExists { + return "", errors.Wrapf(errdefs.ErrAlreadyExists, "content %v", actual) + } return "", err } diff --git a/components/engine/vendor/github.com/containerd/containerd/metadata/db.go b/components/engine/vendor/github.com/containerd/containerd/metadata/db.go index 0ea8ad78ff7..507d6d22d01 100644 --- a/components/engine/vendor/github.com/containerd/containerd/metadata/db.go +++ b/components/engine/vendor/github.com/containerd/containerd/metadata/db.go @@ -23,12 +23,12 @@ import ( "sync" "time" - "github.com/boltdb/bolt" "github.com/containerd/containerd/content" "github.com/containerd/containerd/gc" "github.com/containerd/containerd/log" "github.com/containerd/containerd/snapshots" "github.com/pkg/errors" + bolt "go.etcd.io/bbolt" ) const ( @@ -43,7 +43,7 @@ const ( // dbVersion represents updates to the schema // version which are additions and compatible with // prior version of the same schema. - dbVersion = 2 + dbVersion = 3 ) // DB represents a metadata database backed by a bolt diff --git a/components/engine/vendor/github.com/containerd/containerd/metadata/gc.go b/components/engine/vendor/github.com/containerd/containerd/metadata/gc.go index eb4d0c7c339..a670ce1a3e0 100644 --- a/components/engine/vendor/github.com/containerd/containerd/metadata/gc.go +++ b/components/engine/vendor/github.com/containerd/containerd/metadata/gc.go @@ -23,10 +23,10 @@ import ( "strings" "time" - "github.com/boltdb/bolt" "github.com/containerd/containerd/gc" "github.com/containerd/containerd/log" "github.com/pkg/errors" + bolt "go.etcd.io/bbolt" ) const ( diff --git a/components/engine/vendor/github.com/containerd/containerd/metadata/images.go b/components/engine/vendor/github.com/containerd/containerd/metadata/images.go index 62b1179cd33..6ae9dc85541 100644 --- a/components/engine/vendor/github.com/containerd/containerd/metadata/images.go +++ b/components/engine/vendor/github.com/containerd/containerd/metadata/images.go @@ -23,7 +23,6 @@ import ( "strings" "time" - "github.com/boltdb/bolt" "github.com/containerd/containerd/errdefs" "github.com/containerd/containerd/filters" "github.com/containerd/containerd/images" @@ -33,6 +32,7 @@ import ( digest "github.com/opencontainers/go-digest" ocispec "github.com/opencontainers/image-spec/specs-go/v1" "github.com/pkg/errors" + bolt "go.etcd.io/bbolt" ) type imageStore struct { diff --git a/components/engine/vendor/github.com/containerd/containerd/metadata/leases.go b/components/engine/vendor/github.com/containerd/containerd/metadata/leases.go index 8835065d1ea..635c3b3c37e 100644 --- a/components/engine/vendor/github.com/containerd/containerd/metadata/leases.go +++ b/components/engine/vendor/github.com/containerd/containerd/metadata/leases.go @@ -20,7 +20,6 @@ import ( "context" "time" - "github.com/boltdb/bolt" "github.com/containerd/containerd/errdefs" "github.com/containerd/containerd/filters" "github.com/containerd/containerd/leases" @@ -28,6 +27,7 @@ import ( "github.com/containerd/containerd/namespaces" digest "github.com/opencontainers/go-digest" "github.com/pkg/errors" + bolt "go.etcd.io/bbolt" ) // LeaseManager manages the create/delete lifecyle of leases diff --git a/components/engine/vendor/github.com/containerd/containerd/metadata/migrations.go b/components/engine/vendor/github.com/containerd/containerd/metadata/migrations.go index 3ffda6b3bfd..34febdd1596 100644 --- a/components/engine/vendor/github.com/containerd/containerd/metadata/migrations.go +++ b/components/engine/vendor/github.com/containerd/containerd/metadata/migrations.go @@ -16,7 +16,7 @@ package metadata -import "github.com/boltdb/bolt" +import bolt "go.etcd.io/bbolt" type migration struct { schema string @@ -45,6 +45,11 @@ var migrations = []migration{ version: 2, migrate: migrateIngests, }, + { + schema: "v1", + version: 3, + migrate: noOpMigration, + }, } // addChildLinks Adds children key to the snapshotters to enforce snapshot @@ -154,3 +159,10 @@ func migrateIngests(tx *bolt.Tx) error { return nil } + +// noOpMigration was for a database change from boltdb/bolt which is no +// longer being supported, to go.etcd.io/bbolt which is the currently +// maintained repo for boltdb. +func noOpMigration(tx *bolt.Tx) error { + return nil +} diff --git a/components/engine/vendor/github.com/containerd/containerd/metadata/namespaces.go b/components/engine/vendor/github.com/containerd/containerd/metadata/namespaces.go index 000bef6c9cf..74951eb5c5b 100644 --- a/components/engine/vendor/github.com/containerd/containerd/metadata/namespaces.go +++ b/components/engine/vendor/github.com/containerd/containerd/metadata/namespaces.go @@ -19,11 +19,11 @@ package metadata import ( "context" - "github.com/boltdb/bolt" "github.com/containerd/containerd/errdefs" l "github.com/containerd/containerd/labels" "github.com/containerd/containerd/namespaces" "github.com/pkg/errors" + bolt "go.etcd.io/bbolt" ) type namespaceStore struct { diff --git a/components/engine/vendor/github.com/containerd/containerd/metadata/snapshot.go b/components/engine/vendor/github.com/containerd/containerd/metadata/snapshot.go index fda380a6abc..75b80b0bc59 100644 --- a/components/engine/vendor/github.com/containerd/containerd/metadata/snapshot.go +++ b/components/engine/vendor/github.com/containerd/containerd/metadata/snapshot.go @@ -23,7 +23,6 @@ import ( "sync" "time" - "github.com/boltdb/bolt" "github.com/containerd/containerd/errdefs" "github.com/containerd/containerd/labels" "github.com/containerd/containerd/log" @@ -32,6 +31,7 @@ import ( "github.com/containerd/containerd/namespaces" "github.com/containerd/containerd/snapshots" "github.com/pkg/errors" + bolt "go.etcd.io/bbolt" ) type snapshotter struct { diff --git a/components/engine/vendor/github.com/containerd/containerd/mount/mount_windows.go b/components/engine/vendor/github.com/containerd/containerd/mount/mount_windows.go index f7c97894b43..5de25c4e0a8 100644 --- a/components/engine/vendor/github.com/containerd/containerd/mount/mount_windows.go +++ b/components/engine/vendor/github.com/containerd/containerd/mount/mount_windows.go @@ -32,6 +32,10 @@ var ( // Mount to the provided target func (m *Mount) Mount(target string) error { + if m.Type != "windows-layer" { + return errors.Errorf("invalid windows mount type: '%s'", m.Type) + } + home, layerID := filepath.Split(m.Source) parentLayerPaths, err := m.GetParentPaths() diff --git a/components/engine/vendor/github.com/containerd/containerd/oci/spec.go b/components/engine/vendor/github.com/containerd/containerd/oci/spec.go index ffd0bffca08..b83f40ac65a 100644 --- a/components/engine/vendor/github.com/containerd/containerd/oci/spec.go +++ b/components/engine/vendor/github.com/containerd/containerd/oci/spec.go @@ -18,11 +18,27 @@ package oci import ( "context" + "path/filepath" + "runtime" + + "github.com/containerd/containerd/namespaces" + "github.com/containerd/containerd/platforms" "github.com/containerd/containerd/containers" specs "github.com/opencontainers/runtime-spec/specs-go" ) +const ( + rwm = "rwm" + defaultRootfsPath = "rootfs" +) + +var ( + defaultUnixEnv = []string{ + "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", + } +) + // Spec is a type alias to the OCI runtime spec to allow third part SpecOpts // to be created without the "issues" with go vendoring and package imports type Spec = specs.Spec @@ -30,12 +46,36 @@ type Spec = specs.Spec // GenerateSpec will generate a default spec from the provided image // for use as a containerd container func GenerateSpec(ctx context.Context, client Client, c *containers.Container, opts ...SpecOpts) (*Spec, error) { - s, err := createDefaultSpec(ctx, c.ID) - if err != nil { + return GenerateSpecWithPlatform(ctx, client, platforms.DefaultString(), c, opts...) +} + +// GenerateSpecWithPlatform will generate a default spec from the provided image +// for use as a containerd container in the platform requested. +func GenerateSpecWithPlatform(ctx context.Context, client Client, platform string, c *containers.Container, opts ...SpecOpts) (*Spec, error) { + var s Spec + if err := generateDefaultSpecWithPlatform(ctx, platform, c.ID, &s); err != nil { return nil, err } - return s, ApplyOpts(ctx, client, c, s, opts...) + return &s, ApplyOpts(ctx, client, c, &s, opts...) +} + +func generateDefaultSpecWithPlatform(ctx context.Context, platform, id string, s *Spec) error { + plat, err := platforms.Parse(platform) + if err != nil { + return err + } + + if plat.OS == "windows" { + err = populateDefaultWindowsSpec(ctx, s, id) + } else { + err = populateDefaultUnixSpec(ctx, s, id) + if err == nil && runtime.GOOS == "windows" { + // To run LCOW we have a Linux and Windows section. Add an empty one now. + s.Windows = &specs.Windows{} + } + } + return err } // ApplyOpts applys the options to the given spec, injecting data from the @@ -50,7 +90,174 @@ func ApplyOpts(ctx context.Context, client Client, c *containers.Container, s *S return nil } -func createDefaultSpec(ctx context.Context, id string) (*Spec, error) { - var s Spec - return &s, populateDefaultSpec(ctx, &s, id) +func defaultUnixCaps() []string { + return []string{ + "CAP_CHOWN", + "CAP_DAC_OVERRIDE", + "CAP_FSETID", + "CAP_FOWNER", + "CAP_MKNOD", + "CAP_NET_RAW", + "CAP_SETGID", + "CAP_SETUID", + "CAP_SETFCAP", + "CAP_SETPCAP", + "CAP_NET_BIND_SERVICE", + "CAP_SYS_CHROOT", + "CAP_KILL", + "CAP_AUDIT_WRITE", + } +} + +func defaultUnixNamespaces() []specs.LinuxNamespace { + return []specs.LinuxNamespace{ + { + Type: specs.PIDNamespace, + }, + { + Type: specs.IPCNamespace, + }, + { + Type: specs.UTSNamespace, + }, + { + Type: specs.MountNamespace, + }, + { + Type: specs.NetworkNamespace, + }, + } +} + +func populateDefaultUnixSpec(ctx context.Context, s *Spec, id string) error { + ns, err := namespaces.NamespaceRequired(ctx) + if err != nil { + return err + } + + *s = Spec{ + Version: specs.Version, + Root: &specs.Root{ + Path: defaultRootfsPath, + }, + Process: &specs.Process{ + Env: defaultUnixEnv, + Cwd: "/", + NoNewPrivileges: true, + User: specs.User{ + UID: 0, + GID: 0, + }, + Capabilities: &specs.LinuxCapabilities{ + Bounding: defaultUnixCaps(), + Permitted: defaultUnixCaps(), + Inheritable: defaultUnixCaps(), + Effective: defaultUnixCaps(), + }, + Rlimits: []specs.POSIXRlimit{ + { + Type: "RLIMIT_NOFILE", + Hard: uint64(1024), + Soft: uint64(1024), + }, + }, + }, + Mounts: []specs.Mount{ + { + Destination: "/proc", + Type: "proc", + Source: "proc", + Options: []string{"nosuid", "noexec", "nodev"}, + }, + { + Destination: "/dev", + Type: "tmpfs", + Source: "tmpfs", + Options: []string{"nosuid", "strictatime", "mode=755", "size=65536k"}, + }, + { + Destination: "/dev/pts", + Type: "devpts", + Source: "devpts", + Options: []string{"nosuid", "noexec", "newinstance", "ptmxmode=0666", "mode=0620", "gid=5"}, + }, + { + Destination: "/dev/shm", + Type: "tmpfs", + Source: "shm", + Options: []string{"nosuid", "noexec", "nodev", "mode=1777", "size=65536k"}, + }, + { + Destination: "/dev/mqueue", + Type: "mqueue", + Source: "mqueue", + Options: []string{"nosuid", "noexec", "nodev"}, + }, + { + Destination: "/sys", + Type: "sysfs", + Source: "sysfs", + Options: []string{"nosuid", "noexec", "nodev", "ro"}, + }, + { + Destination: "/run", + Type: "tmpfs", + Source: "tmpfs", + Options: []string{"nosuid", "strictatime", "mode=755", "size=65536k"}, + }, + }, + Linux: &specs.Linux{ + MaskedPaths: []string{ + "/proc/acpi", + "/proc/kcore", + "/proc/keys", + "/proc/latency_stats", + "/proc/timer_list", + "/proc/timer_stats", + "/proc/sched_debug", + "/sys/firmware", + "/proc/scsi", + }, + ReadonlyPaths: []string{ + "/proc/asound", + "/proc/bus", + "/proc/fs", + "/proc/irq", + "/proc/sys", + "/proc/sysrq-trigger", + }, + CgroupsPath: filepath.Join("/", ns, id), + Resources: &specs.LinuxResources{ + Devices: []specs.LinuxDeviceCgroup{ + { + Allow: false, + Access: rwm, + }, + }, + }, + Namespaces: defaultUnixNamespaces(), + }, + } + return nil +} + +func populateDefaultWindowsSpec(ctx context.Context, s *Spec, id string) error { + *s = Spec{ + Version: specs.Version, + Root: &specs.Root{}, + Process: &specs.Process{ + Cwd: `C:\`, + ConsoleSize: &specs.Box{ + Width: 80, + Height: 20, + }, + }, + Windows: &specs.Windows{ + IgnoreFlushesDuringBoot: true, + Network: &specs.WindowsNetwork{ + AllowUnqualifiedDNSQuery: true, + }, + }, + } + return nil } diff --git a/components/engine/vendor/github.com/containerd/containerd/oci/spec_opts.go b/components/engine/vendor/github.com/containerd/containerd/oci/spec_opts.go index fd2cfb0392d..a1694cbcfc5 100644 --- a/components/engine/vendor/github.com/containerd/containerd/oci/spec_opts.go +++ b/components/engine/vendor/github.com/containerd/containerd/oci/spec_opts.go @@ -19,12 +19,25 @@ package oci import ( "context" "encoding/json" + "fmt" "io/ioutil" + "os" + "path/filepath" + "strconv" "strings" "github.com/containerd/containerd/containers" + "github.com/containerd/containerd/content" + "github.com/containerd/containerd/images" + "github.com/containerd/containerd/mount" + "github.com/containerd/containerd/namespaces" + "github.com/containerd/containerd/platforms" + "github.com/containerd/continuity/fs" + "github.com/opencontainers/image-spec/specs-go/v1" + "github.com/opencontainers/runc/libcontainer/user" specs "github.com/opencontainers/runtime-spec/specs-go" "github.com/pkg/errors" + "github.com/syndtr/gocapability/capability" ) // SpecOpts sets spec specific information to a newly generated OCI spec @@ -49,13 +62,45 @@ func setProcess(s *Spec) { } } +// setRoot sets Root to empty if unset +func setRoot(s *Spec) { + if s.Root == nil { + s.Root = &specs.Root{} + } +} + +// setLinux sets Linux to empty if unset +func setLinux(s *Spec) { + if s.Linux == nil { + s.Linux = &specs.Linux{} + } +} + +// setCapabilities sets Linux Capabilities to empty if unset +func setCapabilities(s *Spec) { + setProcess(s) + if s.Process.Capabilities == nil { + s.Process.Capabilities = &specs.LinuxCapabilities{} + } +} + // WithDefaultSpec returns a SpecOpts that will populate the spec with default // values. // // Use as the first option to clear the spec, then apply options afterwards. func WithDefaultSpec() SpecOpts { return func(ctx context.Context, _ Client, c *containers.Container, s *Spec) error { - return populateDefaultSpec(ctx, s, c.ID) + return generateDefaultSpecWithPlatform(ctx, platforms.DefaultString(), c.ID, s) + } +} + +// WithDefaultSpecForPlatform returns a SpecOpts that will populate the spec +// with default values for a given platform. +// +// Use as the first option to clear the spec, then apply options afterwards. +func WithDefaultSpecForPlatform(platform string) SpecOpts { + return func(ctx context.Context, _ Client, c *containers.Container, s *Spec) error { + return generateDefaultSpecWithPlatform(ctx, platform, c.ID, s) } } @@ -81,6 +126,55 @@ func WithSpecFromFile(filename string) SpecOpts { } } +// WithEnv appends environment variables +func WithEnv(environmentVariables []string) SpecOpts { + return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + if len(environmentVariables) > 0 { + setProcess(s) + s.Process.Env = replaceOrAppendEnvValues(s.Process.Env, environmentVariables) + } + return nil + } +} + +// replaceOrAppendEnvValues returns the defaults with the overrides either +// replaced by env key or appended to the list +func replaceOrAppendEnvValues(defaults, overrides []string) []string { + cache := make(map[string]int, len(defaults)) + for i, e := range defaults { + parts := strings.SplitN(e, "=", 2) + cache[parts[0]] = i + } + + for _, value := range overrides { + // Values w/o = means they want this env to be removed/unset. + if !strings.Contains(value, "=") { + if i, exists := cache[value]; exists { + defaults[i] = "" // Used to indicate it should be removed + } + continue + } + + // Just do a normal set/update + parts := strings.SplitN(value, "=", 2) + if i, exists := cache[parts[0]]; exists { + defaults[i] = value + } else { + defaults = append(defaults, value) + } + } + + // Now remove all entries that we want to "unset" + for i := 0; i < len(defaults); i++ { + if defaults[i] == "" { + defaults = append(defaults[:i], defaults[i+1:]...) + i-- + } + } + + return defaults +} + // WithProcessArgs replaces the args on the generated spec func WithProcessArgs(args ...string) SpecOpts { return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { @@ -99,6 +193,32 @@ func WithProcessCwd(cwd string) SpecOpts { } } +// WithTTY sets the information on the spec as well as the environment variables for +// using a TTY +func WithTTY(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setProcess(s) + s.Process.Terminal = true + if s.Linux != nil { + s.Process.Env = append(s.Process.Env, "TERM=xterm") + } + + return nil +} + +// WithTTYSize sets the information on the spec as well as the environment variables for +// using a TTY +func WithTTYSize(width, height int) SpecOpts { + return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setProcess(s) + if s.Process.ConsoleSize == nil { + s.Process.ConsoleSize = &specs.Box{} + } + s.Process.ConsoleSize.Width = uint(width) + s.Process.ConsoleSize.Height = uint(height) + return nil + } +} + // WithHostname sets the container's hostname func WithHostname(name string) SpecOpts { return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { @@ -107,59 +227,787 @@ func WithHostname(name string) SpecOpts { } } -// WithEnv appends environment variables -func WithEnv(environmentVariables []string) SpecOpts { +// WithMounts appends mounts +func WithMounts(mounts []specs.Mount) SpecOpts { return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - if len(environmentVariables) > 0 { - setProcess(s) - s.Process.Env = replaceOrAppendEnvValues(s.Process.Env, environmentVariables) + s.Mounts = append(s.Mounts, mounts...) + return nil + } +} + +// WithHostNamespace allows a task to run inside the host's linux namespace +func WithHostNamespace(ns specs.LinuxNamespaceType) SpecOpts { + return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setLinux(s) + for i, n := range s.Linux.Namespaces { + if n.Type == ns { + s.Linux.Namespaces = append(s.Linux.Namespaces[:i], s.Linux.Namespaces[i+1:]...) + return nil + } } return nil } } -// WithMounts appends mounts -func WithMounts(mounts []specs.Mount) SpecOpts { +// WithLinuxNamespace uses the passed in namespace for the spec. If a namespace of the same type already exists in the +// spec, the existing namespace is replaced by the one provided. +func WithLinuxNamespace(ns specs.LinuxNamespace) SpecOpts { return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - s.Mounts = append(s.Mounts, mounts...) + setLinux(s) + for i, n := range s.Linux.Namespaces { + if n.Type == ns.Type { + before := s.Linux.Namespaces[:i] + after := s.Linux.Namespaces[i+1:] + s.Linux.Namespaces = append(before, ns) + s.Linux.Namespaces = append(s.Linux.Namespaces, after...) + return nil + } + } + s.Linux.Namespaces = append(s.Linux.Namespaces, ns) return nil } } -// replaceOrAppendEnvValues returns the defaults with the overrides either -// replaced by env key or appended to the list -func replaceOrAppendEnvValues(defaults, overrides []string) []string { - cache := make(map[string]int, len(defaults)) - for i, e := range defaults { - parts := strings.SplitN(e, "=", 2) - cache[parts[0]] = i +// WithNewPrivileges turns off the NoNewPrivileges feature flag in the spec +func WithNewPrivileges(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setProcess(s) + s.Process.NoNewPrivileges = false + + return nil +} + +// WithImageConfig configures the spec to from the configuration of an Image +func WithImageConfig(image Image) SpecOpts { + return WithImageConfigArgs(image, nil) +} + +// WithImageConfigArgs configures the spec to from the configuration of an Image with additional args that +// replaces the CMD of the image +func WithImageConfigArgs(image Image, args []string) SpecOpts { + return func(ctx context.Context, client Client, c *containers.Container, s *Spec) error { + ic, err := image.Config(ctx) + if err != nil { + return err + } + var ( + ociimage v1.Image + config v1.ImageConfig + ) + switch ic.MediaType { + case v1.MediaTypeImageConfig, images.MediaTypeDockerSchema2Config: + p, err := content.ReadBlob(ctx, image.ContentStore(), ic) + if err != nil { + return err + } + + if err := json.Unmarshal(p, &ociimage); err != nil { + return err + } + config = ociimage.Config + default: + return fmt.Errorf("unknown image config media type %s", ic.MediaType) + } + + setProcess(s) + if s.Linux != nil { + s.Process.Env = append(s.Process.Env, config.Env...) + cmd := config.Cmd + if len(args) > 0 { + cmd = args + } + s.Process.Args = append(config.Entrypoint, cmd...) + + cwd := config.WorkingDir + if cwd == "" { + cwd = "/" + } + s.Process.Cwd = cwd + if config.User != "" { + if err := WithUser(config.User)(ctx, client, c, s); err != nil { + return err + } + return WithAdditionalGIDs(fmt.Sprintf("%d", s.Process.User.UID))(ctx, client, c, s) + } + // we should query the image's /etc/group for additional GIDs + // even if there is no specified user in the image config + return WithAdditionalGIDs("root")(ctx, client, c, s) + } else if s.Windows != nil { + s.Process.Env = config.Env + s.Process.Args = append(config.Entrypoint, config.Cmd...) + s.Process.User = specs.User{ + Username: config.User, + } + } else { + return errors.New("spec does not contain Linux or Windows section") + } + return nil } +} - for _, value := range overrides { - // Values w/o = means they want this env to be removed/unset. - if !strings.Contains(value, "=") { - if i, exists := cache[value]; exists { - defaults[i] = "" // Used to indicate it should be removed +// WithRootFSPath specifies unmanaged rootfs path. +func WithRootFSPath(path string) SpecOpts { + return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setRoot(s) + s.Root.Path = path + // Entrypoint is not set here (it's up to caller) + return nil + } +} + +// WithRootFSReadonly sets specs.Root.Readonly to true +func WithRootFSReadonly() SpecOpts { + return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setRoot(s) + s.Root.Readonly = true + return nil + } +} + +// WithNoNewPrivileges sets no_new_privileges on the process for the container +func WithNoNewPrivileges(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setProcess(s) + s.Process.NoNewPrivileges = true + return nil +} + +// WithHostHostsFile bind-mounts the host's /etc/hosts into the container as readonly +func WithHostHostsFile(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + s.Mounts = append(s.Mounts, specs.Mount{ + Destination: "/etc/hosts", + Type: "bind", + Source: "/etc/hosts", + Options: []string{"rbind", "ro"}, + }) + return nil +} + +// WithHostResolvconf bind-mounts the host's /etc/resolv.conf into the container as readonly +func WithHostResolvconf(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + s.Mounts = append(s.Mounts, specs.Mount{ + Destination: "/etc/resolv.conf", + Type: "bind", + Source: "/etc/resolv.conf", + Options: []string{"rbind", "ro"}, + }) + return nil +} + +// WithHostLocaltime bind-mounts the host's /etc/localtime into the container as readonly +func WithHostLocaltime(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + s.Mounts = append(s.Mounts, specs.Mount{ + Destination: "/etc/localtime", + Type: "bind", + Source: "/etc/localtime", + Options: []string{"rbind", "ro"}, + }) + return nil +} + +// WithUserNamespace sets the uid and gid mappings for the task +// this can be called multiple times to add more mappings to the generated spec +func WithUserNamespace(container, host, size uint32) SpecOpts { + return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + var hasUserns bool + setLinux(s) + for _, ns := range s.Linux.Namespaces { + if ns.Type == specs.UserNamespace { + hasUserns = true + break } - continue } + if !hasUserns { + s.Linux.Namespaces = append(s.Linux.Namespaces, specs.LinuxNamespace{ + Type: specs.UserNamespace, + }) + } + mapping := specs.LinuxIDMapping{ + ContainerID: container, + HostID: host, + Size: size, + } + s.Linux.UIDMappings = append(s.Linux.UIDMappings, mapping) + s.Linux.GIDMappings = append(s.Linux.GIDMappings, mapping) + return nil + } +} - // Just do a normal set/update - parts := strings.SplitN(value, "=", 2) - if i, exists := cache[parts[0]]; exists { - defaults[i] = value +// WithCgroup sets the container's cgroup path +func WithCgroup(path string) SpecOpts { + return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setLinux(s) + s.Linux.CgroupsPath = path + return nil + } +} + +// WithNamespacedCgroup uses the namespace set on the context to create a +// root directory for containers in the cgroup with the id as the subcgroup +func WithNamespacedCgroup() SpecOpts { + return func(ctx context.Context, _ Client, c *containers.Container, s *Spec) error { + namespace, err := namespaces.NamespaceRequired(ctx) + if err != nil { + return err + } + setLinux(s) + s.Linux.CgroupsPath = filepath.Join("/", namespace, c.ID) + return nil + } +} + +// WithUser sets the user to be used within the container. +// It accepts a valid user string in OCI Image Spec v1.0.0: +// user, uid, user:group, uid:gid, uid:group, user:gid +func WithUser(userstr string) SpecOpts { + return func(ctx context.Context, client Client, c *containers.Container, s *Spec) error { + setProcess(s) + parts := strings.Split(userstr, ":") + switch len(parts) { + case 1: + v, err := strconv.Atoi(parts[0]) + if err != nil { + // if we cannot parse as a uint they try to see if it is a username + return WithUsername(userstr)(ctx, client, c, s) + } + return WithUserID(uint32(v))(ctx, client, c, s) + case 2: + var ( + username string + groupname string + ) + var uid, gid uint32 + v, err := strconv.Atoi(parts[0]) + if err != nil { + username = parts[0] + } else { + uid = uint32(v) + } + if v, err = strconv.Atoi(parts[1]); err != nil { + groupname = parts[1] + } else { + gid = uint32(v) + } + if username == "" && groupname == "" { + s.Process.User.UID, s.Process.User.GID = uid, gid + return nil + } + f := func(root string) error { + if username != "" { + user, err := getUserFromPath(root, func(u user.User) bool { + return u.Name == username + }) + if err != nil { + return err + } + uid = uint32(user.Uid) + } + if groupname != "" { + gid, err = getGIDFromPath(root, func(g user.Group) bool { + return g.Name == groupname + }) + if err != nil { + return err + } + } + s.Process.User.UID, s.Process.User.GID = uid, gid + return nil + } + if c.Snapshotter == "" && c.SnapshotKey == "" { + if !isRootfsAbs(s.Root.Path) { + return errors.New("rootfs absolute path is required") + } + return f(s.Root.Path) + } + if c.Snapshotter == "" { + return errors.New("no snapshotter set for container") + } + if c.SnapshotKey == "" { + return errors.New("rootfs snapshot not created for container") + } + snapshotter := client.SnapshotService(c.Snapshotter) + mounts, err := snapshotter.Mounts(ctx, c.SnapshotKey) + if err != nil { + return err + } + return mount.WithTempMount(ctx, mounts, f) + default: + return fmt.Errorf("invalid USER value %s", userstr) + } + } +} + +// WithUIDGID allows the UID and GID for the Process to be set +func WithUIDGID(uid, gid uint32) SpecOpts { + return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setProcess(s) + s.Process.User.UID = uid + s.Process.User.GID = gid + return nil + } +} + +// WithUserID sets the correct UID and GID for the container based +// on the image's /etc/passwd contents. If /etc/passwd does not exist, +// or uid is not found in /etc/passwd, it sets the requested uid, +// additionally sets the gid to 0, and does not return an error. +func WithUserID(uid uint32) SpecOpts { + return func(ctx context.Context, client Client, c *containers.Container, s *Spec) (err error) { + setProcess(s) + if c.Snapshotter == "" && c.SnapshotKey == "" { + if !isRootfsAbs(s.Root.Path) { + return errors.Errorf("rootfs absolute path is required") + } + user, err := getUserFromPath(s.Root.Path, func(u user.User) bool { + return u.Uid == int(uid) + }) + if err != nil { + if os.IsNotExist(err) || err == errNoUsersFound { + s.Process.User.UID, s.Process.User.GID = uid, 0 + return nil + } + return err + } + s.Process.User.UID, s.Process.User.GID = uint32(user.Uid), uint32(user.Gid) + return nil + + } + if c.Snapshotter == "" { + return errors.Errorf("no snapshotter set for container") + } + if c.SnapshotKey == "" { + return errors.Errorf("rootfs snapshot not created for container") + } + snapshotter := client.SnapshotService(c.Snapshotter) + mounts, err := snapshotter.Mounts(ctx, c.SnapshotKey) + if err != nil { + return err + } + return mount.WithTempMount(ctx, mounts, func(root string) error { + user, err := getUserFromPath(root, func(u user.User) bool { + return u.Uid == int(uid) + }) + if err != nil { + if os.IsNotExist(err) || err == errNoUsersFound { + s.Process.User.UID, s.Process.User.GID = uid, 0 + return nil + } + return err + } + s.Process.User.UID, s.Process.User.GID = uint32(user.Uid), uint32(user.Gid) + return nil + }) + } +} + +// WithUsername sets the correct UID and GID for the container +// based on the the image's /etc/passwd contents. If /etc/passwd +// does not exist, or the username is not found in /etc/passwd, +// it returns error. +func WithUsername(username string) SpecOpts { + return func(ctx context.Context, client Client, c *containers.Container, s *Spec) (err error) { + setProcess(s) + if s.Linux != nil { + if c.Snapshotter == "" && c.SnapshotKey == "" { + if !isRootfsAbs(s.Root.Path) { + return errors.Errorf("rootfs absolute path is required") + } + user, err := getUserFromPath(s.Root.Path, func(u user.User) bool { + return u.Name == username + }) + if err != nil { + return err + } + s.Process.User.UID, s.Process.User.GID = uint32(user.Uid), uint32(user.Gid) + return nil + } + if c.Snapshotter == "" { + return errors.Errorf("no snapshotter set for container") + } + if c.SnapshotKey == "" { + return errors.Errorf("rootfs snapshot not created for container") + } + snapshotter := client.SnapshotService(c.Snapshotter) + mounts, err := snapshotter.Mounts(ctx, c.SnapshotKey) + if err != nil { + return err + } + return mount.WithTempMount(ctx, mounts, func(root string) error { + user, err := getUserFromPath(root, func(u user.User) bool { + return u.Name == username + }) + if err != nil { + return err + } + s.Process.User.UID, s.Process.User.GID = uint32(user.Uid), uint32(user.Gid) + return nil + }) + } else if s.Windows != nil { + s.Process.User.Username = username } else { - defaults = append(defaults, value) + return errors.New("spec does not contain Linux or Windows section") } + return nil } +} - // Now remove all entries that we want to "unset" - for i := 0; i < len(defaults); i++ { - if defaults[i] == "" { - defaults = append(defaults[:i], defaults[i+1:]...) - i-- +// WithAdditionalGIDs sets the OCI spec's additionalGids array to any additional groups listed +// for a particular user in the /etc/groups file of the image's root filesystem +// The passed in user can be either a uid or a username. +func WithAdditionalGIDs(userstr string) SpecOpts { + return func(ctx context.Context, client Client, c *containers.Container, s *Spec) (err error) { + setProcess(s) + setAdditionalGids := func(root string) error { + var username string + uid, err := strconv.Atoi(userstr) + if err == nil { + user, err := getUserFromPath(root, func(u user.User) bool { + return u.Uid == uid + }) + if err != nil { + if os.IsNotExist(err) || err == errNoUsersFound { + return nil + } + return err + } + username = user.Name + } else { + username = userstr + } + gids, err := getSupplementalGroupsFromPath(root, func(g user.Group) bool { + // we only want supplemental groups + if g.Name == username { + return false + } + for _, entry := range g.List { + if entry == username { + return true + } + } + return false + }) + if err != nil { + if os.IsNotExist(err) { + return nil + } + return err + } + s.Process.User.AdditionalGids = gids + return nil } + if c.Snapshotter == "" && c.SnapshotKey == "" { + if !isRootfsAbs(s.Root.Path) { + return errors.Errorf("rootfs absolute path is required") + } + return setAdditionalGids(s.Root.Path) + } + if c.Snapshotter == "" { + return errors.Errorf("no snapshotter set for container") + } + if c.SnapshotKey == "" { + return errors.Errorf("rootfs snapshot not created for container") + } + snapshotter := client.SnapshotService(c.Snapshotter) + mounts, err := snapshotter.Mounts(ctx, c.SnapshotKey) + if err != nil { + return err + } + return mount.WithTempMount(ctx, mounts, setAdditionalGids) } +} - return defaults +// WithCapabilities sets Linux capabilities on the process +func WithCapabilities(caps []string) SpecOpts { + return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setCapabilities(s) + + s.Process.Capabilities.Bounding = caps + s.Process.Capabilities.Effective = caps + s.Process.Capabilities.Permitted = caps + s.Process.Capabilities.Inheritable = caps + + return nil + } +} + +// WithAllCapabilities sets all linux capabilities for the process +var WithAllCapabilities = WithCapabilities(getAllCapabilities()) + +func getAllCapabilities() []string { + last := capability.CAP_LAST_CAP + // hack for RHEL6 which has no /proc/sys/kernel/cap_last_cap + if last == capability.Cap(63) { + last = capability.CAP_BLOCK_SUSPEND + } + var caps []string + for _, cap := range capability.List() { + if cap > last { + continue + } + caps = append(caps, "CAP_"+strings.ToUpper(cap.String())) + } + return caps +} + +// WithAmbientCapabilities set the Linux ambient capabilities for the process +// Ambient capabilities should only be set for non-root users or the caller should +// understand how these capabilities are used and set +func WithAmbientCapabilities(caps []string) SpecOpts { + return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setCapabilities(s) + + s.Process.Capabilities.Ambient = caps + return nil + } +} + +var errNoUsersFound = errors.New("no users found") + +func getUserFromPath(root string, filter func(user.User) bool) (user.User, error) { + ppath, err := fs.RootPath(root, "/etc/passwd") + if err != nil { + return user.User{}, err + } + users, err := user.ParsePasswdFileFilter(ppath, filter) + if err != nil { + return user.User{}, err + } + if len(users) == 0 { + return user.User{}, errNoUsersFound + } + return users[0], nil +} + +var errNoGroupsFound = errors.New("no groups found") + +func getGIDFromPath(root string, filter func(user.Group) bool) (gid uint32, err error) { + gpath, err := fs.RootPath(root, "/etc/group") + if err != nil { + return 0, err + } + groups, err := user.ParseGroupFileFilter(gpath, filter) + if err != nil { + return 0, err + } + if len(groups) == 0 { + return 0, errNoGroupsFound + } + g := groups[0] + return uint32(g.Gid), nil +} + +func getSupplementalGroupsFromPath(root string, filter func(user.Group) bool) ([]uint32, error) { + gpath, err := fs.RootPath(root, "/etc/group") + if err != nil { + return []uint32{}, err + } + groups, err := user.ParseGroupFileFilter(gpath, filter) + if err != nil { + return []uint32{}, err + } + if len(groups) == 0 { + // if there are no additional groups; just return an empty set + return []uint32{}, nil + } + addlGids := []uint32{} + for _, grp := range groups { + addlGids = append(addlGids, uint32(grp.Gid)) + } + return addlGids, nil +} + +func isRootfsAbs(root string) bool { + return filepath.IsAbs(root) } + +// WithMaskedPaths sets the masked paths option +func WithMaskedPaths(paths []string) SpecOpts { + return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setLinux(s) + s.Linux.MaskedPaths = paths + return nil + } +} + +// WithReadonlyPaths sets the read only paths option +func WithReadonlyPaths(paths []string) SpecOpts { + return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setLinux(s) + s.Linux.ReadonlyPaths = paths + return nil + } +} + +// WithWriteableSysfs makes any sysfs mounts writeable +func WithWriteableSysfs(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + for i, m := range s.Mounts { + if m.Type == "sysfs" { + var options []string + for _, o := range m.Options { + if o == "ro" { + o = "rw" + } + options = append(options, o) + } + s.Mounts[i].Options = options + } + } + return nil +} + +// WithWriteableCgroupfs makes any cgroup mounts writeable +func WithWriteableCgroupfs(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + for i, m := range s.Mounts { + if m.Type == "cgroup" { + var options []string + for _, o := range m.Options { + if o == "ro" { + o = "rw" + } + options = append(options, o) + } + s.Mounts[i].Options = options + } + } + return nil +} + +// WithSelinuxLabel sets the process SELinux label +func WithSelinuxLabel(label string) SpecOpts { + return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setProcess(s) + s.Process.SelinuxLabel = label + return nil + } +} + +// WithApparmorProfile sets the Apparmor profile for the process +func WithApparmorProfile(profile string) SpecOpts { + return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setProcess(s) + s.Process.ApparmorProfile = profile + return nil + } +} + +// WithSeccompUnconfined clears the seccomp profile +func WithSeccompUnconfined(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setLinux(s) + s.Linux.Seccomp = nil + return nil +} + +// WithParentCgroupDevices uses the default cgroup setup to inherit the container's parent cgroup's +// allowed and denied devices +func WithParentCgroupDevices(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setLinux(s) + if s.Linux.Resources == nil { + s.Linux.Resources = &specs.LinuxResources{} + } + s.Linux.Resources.Devices = nil + return nil +} + +// WithDefaultUnixDevices adds the default devices for unix such as /dev/null, /dev/random to +// the container's resource cgroup spec +func WithDefaultUnixDevices(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { + setLinux(s) + if s.Linux.Resources == nil { + s.Linux.Resources = &specs.LinuxResources{} + } + intptr := func(i int64) *int64 { + return &i + } + s.Linux.Resources.Devices = append(s.Linux.Resources.Devices, []specs.LinuxDeviceCgroup{ + { + // "/dev/null", + Type: "c", + Major: intptr(1), + Minor: intptr(3), + Access: rwm, + Allow: true, + }, + { + // "/dev/random", + Type: "c", + Major: intptr(1), + Minor: intptr(8), + Access: rwm, + Allow: true, + }, + { + // "/dev/full", + Type: "c", + Major: intptr(1), + Minor: intptr(7), + Access: rwm, + Allow: true, + }, + { + // "/dev/tty", + Type: "c", + Major: intptr(5), + Minor: intptr(0), + Access: rwm, + Allow: true, + }, + { + // "/dev/zero", + Type: "c", + Major: intptr(1), + Minor: intptr(5), + Access: rwm, + Allow: true, + }, + { + // "/dev/urandom", + Type: "c", + Major: intptr(1), + Minor: intptr(9), + Access: rwm, + Allow: true, + }, + { + // "/dev/console", + Type: "c", + Major: intptr(5), + Minor: intptr(1), + Access: rwm, + Allow: true, + }, + // /dev/pts/ - pts namespaces are "coming soon" + { + Type: "c", + Major: intptr(136), + Access: rwm, + Allow: true, + }, + { + Type: "c", + Major: intptr(5), + Minor: intptr(2), + Access: rwm, + Allow: true, + }, + { + // tuntap + Type: "c", + Major: intptr(10), + Minor: intptr(200), + Access: rwm, + Allow: true, + }, + }...) + return nil +} + +// WithPrivileged sets up options for a privileged container +// TODO(justincormack) device handling +var WithPrivileged = Compose( + WithAllCapabilities, + WithMaskedPaths(nil), + WithReadonlyPaths(nil), + WithWriteableSysfs, + WithWriteableCgroupfs, + WithSelinuxLabel(""), + WithApparmorProfile(""), + WithSeccompUnconfined, +) diff --git a/components/engine/vendor/github.com/containerd/containerd/oci/spec_opts_unix.go b/components/engine/vendor/github.com/containerd/containerd/oci/spec_opts_unix.go deleted file mode 100644 index 592da651d29..00000000000 --- a/components/engine/vendor/github.com/containerd/containerd/oci/spec_opts_unix.go +++ /dev/null @@ -1,733 +0,0 @@ -// +build !windows - -/* - Copyright The containerd Authors. - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. -*/ - -package oci - -import ( - "context" - "encoding/json" - "fmt" - "os" - "path/filepath" - "strconv" - "strings" - - "github.com/containerd/containerd/containers" - "github.com/containerd/containerd/content" - "github.com/containerd/containerd/images" - "github.com/containerd/containerd/mount" - "github.com/containerd/containerd/namespaces" - "github.com/containerd/continuity/fs" - "github.com/opencontainers/image-spec/specs-go/v1" - "github.com/opencontainers/runc/libcontainer/user" - specs "github.com/opencontainers/runtime-spec/specs-go" - "github.com/pkg/errors" - "github.com/syndtr/gocapability/capability" -) - -// WithTTY sets the information on the spec as well as the environment variables for -// using a TTY -func WithTTY(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setProcess(s) - s.Process.Terminal = true - s.Process.Env = append(s.Process.Env, "TERM=xterm") - return nil -} - -// setRoot sets Root to empty if unset -func setRoot(s *Spec) { - if s.Root == nil { - s.Root = &specs.Root{} - } -} - -// setLinux sets Linux to empty if unset -func setLinux(s *Spec) { - if s.Linux == nil { - s.Linux = &specs.Linux{} - } -} - -// setCapabilities sets Linux Capabilities to empty if unset -func setCapabilities(s *Spec) { - setProcess(s) - if s.Process.Capabilities == nil { - s.Process.Capabilities = &specs.LinuxCapabilities{} - } -} - -// WithHostNamespace allows a task to run inside the host's linux namespace -func WithHostNamespace(ns specs.LinuxNamespaceType) SpecOpts { - return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setLinux(s) - for i, n := range s.Linux.Namespaces { - if n.Type == ns { - s.Linux.Namespaces = append(s.Linux.Namespaces[:i], s.Linux.Namespaces[i+1:]...) - return nil - } - } - return nil - } -} - -// WithLinuxNamespace uses the passed in namespace for the spec. If a namespace of the same type already exists in the -// spec, the existing namespace is replaced by the one provided. -func WithLinuxNamespace(ns specs.LinuxNamespace) SpecOpts { - return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setLinux(s) - for i, n := range s.Linux.Namespaces { - if n.Type == ns.Type { - before := s.Linux.Namespaces[:i] - after := s.Linux.Namespaces[i+1:] - s.Linux.Namespaces = append(before, ns) - s.Linux.Namespaces = append(s.Linux.Namespaces, after...) - return nil - } - } - s.Linux.Namespaces = append(s.Linux.Namespaces, ns) - return nil - } -} - -// WithImageConfig configures the spec to from the configuration of an Image -func WithImageConfig(image Image) SpecOpts { - return WithImageConfigArgs(image, nil) -} - -// WithImageConfigArgs configures the spec to from the configuration of an Image with additional args that -// replaces the CMD of the image -func WithImageConfigArgs(image Image, args []string) SpecOpts { - return func(ctx context.Context, client Client, c *containers.Container, s *Spec) error { - ic, err := image.Config(ctx) - if err != nil { - return err - } - var ( - ociimage v1.Image - config v1.ImageConfig - ) - switch ic.MediaType { - case v1.MediaTypeImageConfig, images.MediaTypeDockerSchema2Config: - p, err := content.ReadBlob(ctx, image.ContentStore(), ic) - if err != nil { - return err - } - - if err := json.Unmarshal(p, &ociimage); err != nil { - return err - } - config = ociimage.Config - default: - return fmt.Errorf("unknown image config media type %s", ic.MediaType) - } - - setProcess(s) - s.Process.Env = append(s.Process.Env, config.Env...) - cmd := config.Cmd - if len(args) > 0 { - cmd = args - } - s.Process.Args = append(config.Entrypoint, cmd...) - - cwd := config.WorkingDir - if cwd == "" { - cwd = "/" - } - s.Process.Cwd = cwd - if config.User != "" { - return WithUser(config.User)(ctx, client, c, s) - } - return nil - } -} - -// WithRootFSPath specifies unmanaged rootfs path. -func WithRootFSPath(path string) SpecOpts { - return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setRoot(s) - s.Root.Path = path - // Entrypoint is not set here (it's up to caller) - return nil - } -} - -// WithRootFSReadonly sets specs.Root.Readonly to true -func WithRootFSReadonly() SpecOpts { - return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setRoot(s) - s.Root.Readonly = true - return nil - } -} - -// WithNoNewPrivileges sets no_new_privileges on the process for the container -func WithNoNewPrivileges(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setProcess(s) - s.Process.NoNewPrivileges = true - return nil -} - -// WithHostHostsFile bind-mounts the host's /etc/hosts into the container as readonly -func WithHostHostsFile(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - s.Mounts = append(s.Mounts, specs.Mount{ - Destination: "/etc/hosts", - Type: "bind", - Source: "/etc/hosts", - Options: []string{"rbind", "ro"}, - }) - return nil -} - -// WithHostResolvconf bind-mounts the host's /etc/resolv.conf into the container as readonly -func WithHostResolvconf(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - s.Mounts = append(s.Mounts, specs.Mount{ - Destination: "/etc/resolv.conf", - Type: "bind", - Source: "/etc/resolv.conf", - Options: []string{"rbind", "ro"}, - }) - return nil -} - -// WithHostLocaltime bind-mounts the host's /etc/localtime into the container as readonly -func WithHostLocaltime(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - s.Mounts = append(s.Mounts, specs.Mount{ - Destination: "/etc/localtime", - Type: "bind", - Source: "/etc/localtime", - Options: []string{"rbind", "ro"}, - }) - return nil -} - -// WithUserNamespace sets the uid and gid mappings for the task -// this can be called multiple times to add more mappings to the generated spec -func WithUserNamespace(container, host, size uint32) SpecOpts { - return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - var hasUserns bool - setLinux(s) - for _, ns := range s.Linux.Namespaces { - if ns.Type == specs.UserNamespace { - hasUserns = true - break - } - } - if !hasUserns { - s.Linux.Namespaces = append(s.Linux.Namespaces, specs.LinuxNamespace{ - Type: specs.UserNamespace, - }) - } - mapping := specs.LinuxIDMapping{ - ContainerID: container, - HostID: host, - Size: size, - } - s.Linux.UIDMappings = append(s.Linux.UIDMappings, mapping) - s.Linux.GIDMappings = append(s.Linux.GIDMappings, mapping) - return nil - } -} - -// WithCgroup sets the container's cgroup path -func WithCgroup(path string) SpecOpts { - return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setLinux(s) - s.Linux.CgroupsPath = path - return nil - } -} - -// WithNamespacedCgroup uses the namespace set on the context to create a -// root directory for containers in the cgroup with the id as the subcgroup -func WithNamespacedCgroup() SpecOpts { - return func(ctx context.Context, _ Client, c *containers.Container, s *Spec) error { - namespace, err := namespaces.NamespaceRequired(ctx) - if err != nil { - return err - } - setLinux(s) - s.Linux.CgroupsPath = filepath.Join("/", namespace, c.ID) - return nil - } -} - -// WithUser sets the user to be used within the container. -// It accepts a valid user string in OCI Image Spec v1.0.0: -// user, uid, user:group, uid:gid, uid:group, user:gid -func WithUser(userstr string) SpecOpts { - return func(ctx context.Context, client Client, c *containers.Container, s *Spec) error { - setProcess(s) - parts := strings.Split(userstr, ":") - switch len(parts) { - case 1: - v, err := strconv.Atoi(parts[0]) - if err != nil { - // if we cannot parse as a uint they try to see if it is a username - return WithUsername(userstr)(ctx, client, c, s) - } - return WithUserID(uint32(v))(ctx, client, c, s) - case 2: - var ( - username string - groupname string - ) - var uid, gid uint32 - v, err := strconv.Atoi(parts[0]) - if err != nil { - username = parts[0] - } else { - uid = uint32(v) - } - if v, err = strconv.Atoi(parts[1]); err != nil { - groupname = parts[1] - } else { - gid = uint32(v) - } - if username == "" && groupname == "" { - s.Process.User.UID, s.Process.User.GID = uid, gid - return nil - } - f := func(root string) error { - if username != "" { - uid, _, err = getUIDGIDFromPath(root, func(u user.User) bool { - return u.Name == username - }) - if err != nil { - return err - } - } - if groupname != "" { - gid, err = getGIDFromPath(root, func(g user.Group) bool { - return g.Name == groupname - }) - if err != nil { - return err - } - } - s.Process.User.UID, s.Process.User.GID = uid, gid - return nil - } - if c.Snapshotter == "" && c.SnapshotKey == "" { - if !isRootfsAbs(s.Root.Path) { - return errors.New("rootfs absolute path is required") - } - return f(s.Root.Path) - } - if c.Snapshotter == "" { - return errors.New("no snapshotter set for container") - } - if c.SnapshotKey == "" { - return errors.New("rootfs snapshot not created for container") - } - snapshotter := client.SnapshotService(c.Snapshotter) - mounts, err := snapshotter.Mounts(ctx, c.SnapshotKey) - if err != nil { - return err - } - return mount.WithTempMount(ctx, mounts, f) - default: - return fmt.Errorf("invalid USER value %s", userstr) - } - } -} - -// WithUIDGID allows the UID and GID for the Process to be set -func WithUIDGID(uid, gid uint32) SpecOpts { - return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setProcess(s) - s.Process.User.UID = uid - s.Process.User.GID = gid - return nil - } -} - -// WithUserID sets the correct UID and GID for the container based -// on the image's /etc/passwd contents. If /etc/passwd does not exist, -// or uid is not found in /etc/passwd, it sets the requested uid, -// additionally sets the gid to 0, and does not return an error. -func WithUserID(uid uint32) SpecOpts { - return func(ctx context.Context, client Client, c *containers.Container, s *Spec) (err error) { - setProcess(s) - if c.Snapshotter == "" && c.SnapshotKey == "" { - if !isRootfsAbs(s.Root.Path) { - return errors.Errorf("rootfs absolute path is required") - } - uuid, ugid, err := getUIDGIDFromPath(s.Root.Path, func(u user.User) bool { - return u.Uid == int(uid) - }) - if err != nil { - if os.IsNotExist(err) || err == errNoUsersFound { - s.Process.User.UID, s.Process.User.GID = uid, 0 - return nil - } - return err - } - s.Process.User.UID, s.Process.User.GID = uuid, ugid - return nil - - } - if c.Snapshotter == "" { - return errors.Errorf("no snapshotter set for container") - } - if c.SnapshotKey == "" { - return errors.Errorf("rootfs snapshot not created for container") - } - snapshotter := client.SnapshotService(c.Snapshotter) - mounts, err := snapshotter.Mounts(ctx, c.SnapshotKey) - if err != nil { - return err - } - return mount.WithTempMount(ctx, mounts, func(root string) error { - uuid, ugid, err := getUIDGIDFromPath(root, func(u user.User) bool { - return u.Uid == int(uid) - }) - if err != nil { - if os.IsNotExist(err) || err == errNoUsersFound { - s.Process.User.UID, s.Process.User.GID = uid, 0 - return nil - } - return err - } - s.Process.User.UID, s.Process.User.GID = uuid, ugid - return nil - }) - } -} - -// WithUsername sets the correct UID and GID for the container -// based on the the image's /etc/passwd contents. If /etc/passwd -// does not exist, or the username is not found in /etc/passwd, -// it returns error. -func WithUsername(username string) SpecOpts { - return func(ctx context.Context, client Client, c *containers.Container, s *Spec) (err error) { - setProcess(s) - if c.Snapshotter == "" && c.SnapshotKey == "" { - if !isRootfsAbs(s.Root.Path) { - return errors.Errorf("rootfs absolute path is required") - } - uid, gid, err := getUIDGIDFromPath(s.Root.Path, func(u user.User) bool { - return u.Name == username - }) - if err != nil { - return err - } - s.Process.User.UID, s.Process.User.GID = uid, gid - return nil - } - if c.Snapshotter == "" { - return errors.Errorf("no snapshotter set for container") - } - if c.SnapshotKey == "" { - return errors.Errorf("rootfs snapshot not created for container") - } - snapshotter := client.SnapshotService(c.Snapshotter) - mounts, err := snapshotter.Mounts(ctx, c.SnapshotKey) - if err != nil { - return err - } - return mount.WithTempMount(ctx, mounts, func(root string) error { - uid, gid, err := getUIDGIDFromPath(root, func(u user.User) bool { - return u.Name == username - }) - if err != nil { - return err - } - s.Process.User.UID, s.Process.User.GID = uid, gid - return nil - }) - } -} - -// WithCapabilities sets Linux capabilities on the process -func WithCapabilities(caps []string) SpecOpts { - return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setCapabilities(s) - - s.Process.Capabilities.Bounding = caps - s.Process.Capabilities.Effective = caps - s.Process.Capabilities.Permitted = caps - s.Process.Capabilities.Inheritable = caps - - return nil - } -} - -// WithAllCapabilities sets all linux capabilities for the process -var WithAllCapabilities = WithCapabilities(getAllCapabilities()) - -func getAllCapabilities() []string { - last := capability.CAP_LAST_CAP - // hack for RHEL6 which has no /proc/sys/kernel/cap_last_cap - if last == capability.Cap(63) { - last = capability.CAP_BLOCK_SUSPEND - } - var caps []string - for _, cap := range capability.List() { - if cap > last { - continue - } - caps = append(caps, "CAP_"+strings.ToUpper(cap.String())) - } - return caps -} - -// WithAmbientCapabilities set the Linux ambient capabilities for the process -// Ambient capabilities should only be set for non-root users or the caller should -// understand how these capabilities are used and set -func WithAmbientCapabilities(caps []string) SpecOpts { - return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setCapabilities(s) - - s.Process.Capabilities.Ambient = caps - return nil - } -} - -var errNoUsersFound = errors.New("no users found") - -func getUIDGIDFromPath(root string, filter func(user.User) bool) (uid, gid uint32, err error) { - ppath, err := fs.RootPath(root, "/etc/passwd") - if err != nil { - return 0, 0, err - } - users, err := user.ParsePasswdFileFilter(ppath, filter) - if err != nil { - return 0, 0, err - } - if len(users) == 0 { - return 0, 0, errNoUsersFound - } - u := users[0] - return uint32(u.Uid), uint32(u.Gid), nil -} - -var errNoGroupsFound = errors.New("no groups found") - -func getGIDFromPath(root string, filter func(user.Group) bool) (gid uint32, err error) { - gpath, err := fs.RootPath(root, "/etc/group") - if err != nil { - return 0, err - } - groups, err := user.ParseGroupFileFilter(gpath, filter) - if err != nil { - return 0, err - } - if len(groups) == 0 { - return 0, errNoGroupsFound - } - g := groups[0] - return uint32(g.Gid), nil -} - -func isRootfsAbs(root string) bool { - return filepath.IsAbs(root) -} - -// WithMaskedPaths sets the masked paths option -func WithMaskedPaths(paths []string) SpecOpts { - return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setLinux(s) - s.Linux.MaskedPaths = paths - return nil - } -} - -// WithReadonlyPaths sets the read only paths option -func WithReadonlyPaths(paths []string) SpecOpts { - return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setLinux(s) - s.Linux.ReadonlyPaths = paths - return nil - } -} - -// WithWriteableSysfs makes any sysfs mounts writeable -func WithWriteableSysfs(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - for i, m := range s.Mounts { - if m.Type == "sysfs" { - var options []string - for _, o := range m.Options { - if o == "ro" { - o = "rw" - } - options = append(options, o) - } - s.Mounts[i].Options = options - } - } - return nil -} - -// WithWriteableCgroupfs makes any cgroup mounts writeable -func WithWriteableCgroupfs(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - for i, m := range s.Mounts { - if m.Type == "cgroup" { - var options []string - for _, o := range m.Options { - if o == "ro" { - o = "rw" - } - options = append(options, o) - } - s.Mounts[i].Options = options - } - } - return nil -} - -// WithSelinuxLabel sets the process SELinux label -func WithSelinuxLabel(label string) SpecOpts { - return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setProcess(s) - s.Process.SelinuxLabel = label - return nil - } -} - -// WithApparmorProfile sets the Apparmor profile for the process -func WithApparmorProfile(profile string) SpecOpts { - return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setProcess(s) - s.Process.ApparmorProfile = profile - return nil - } -} - -// WithSeccompUnconfined clears the seccomp profile -func WithSeccompUnconfined(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setLinux(s) - s.Linux.Seccomp = nil - return nil -} - -// WithParentCgroupDevices uses the default cgroup setup to inherit the container's parent cgroup's -// allowed and denied devices -func WithParentCgroupDevices(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setLinux(s) - if s.Linux.Resources == nil { - s.Linux.Resources = &specs.LinuxResources{} - } - s.Linux.Resources.Devices = nil - return nil -} - -// WithDefaultUnixDevices adds the default devices for unix such as /dev/null, /dev/random to -// the container's resource cgroup spec -func WithDefaultUnixDevices(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setLinux(s) - if s.Linux.Resources == nil { - s.Linux.Resources = &specs.LinuxResources{} - } - intptr := func(i int64) *int64 { - return &i - } - s.Linux.Resources.Devices = append(s.Linux.Resources.Devices, []specs.LinuxDeviceCgroup{ - { - // "/dev/null", - Type: "c", - Major: intptr(1), - Minor: intptr(3), - Access: rwm, - Allow: true, - }, - { - // "/dev/random", - Type: "c", - Major: intptr(1), - Minor: intptr(8), - Access: rwm, - Allow: true, - }, - { - // "/dev/full", - Type: "c", - Major: intptr(1), - Minor: intptr(7), - Access: rwm, - Allow: true, - }, - { - // "/dev/tty", - Type: "c", - Major: intptr(5), - Minor: intptr(0), - Access: rwm, - Allow: true, - }, - { - // "/dev/zero", - Type: "c", - Major: intptr(1), - Minor: intptr(5), - Access: rwm, - Allow: true, - }, - { - // "/dev/urandom", - Type: "c", - Major: intptr(1), - Minor: intptr(9), - Access: rwm, - Allow: true, - }, - { - // "/dev/console", - Type: "c", - Major: intptr(5), - Minor: intptr(1), - Access: rwm, - Allow: true, - }, - // /dev/pts/ - pts namespaces are "coming soon" - { - Type: "c", - Major: intptr(136), - Access: rwm, - Allow: true, - }, - { - Type: "c", - Major: intptr(5), - Minor: intptr(2), - Access: rwm, - Allow: true, - }, - { - // tuntap - Type: "c", - Major: intptr(10), - Minor: intptr(200), - Access: rwm, - Allow: true, - }, - }...) - return nil -} - -// WithPrivileged sets up options for a privileged container -// TODO(justincormack) device handling -var WithPrivileged = Compose( - WithAllCapabilities, - WithMaskedPaths(nil), - WithReadonlyPaths(nil), - WithWriteableSysfs, - WithWriteableCgroupfs, - WithSelinuxLabel(""), - WithApparmorProfile(""), - WithSeccompUnconfined, -) diff --git a/components/engine/vendor/github.com/containerd/containerd/oci/spec_opts_windows.go b/components/engine/vendor/github.com/containerd/containerd/oci/spec_opts_windows.go deleted file mode 100644 index 3688a582d29..00000000000 --- a/components/engine/vendor/github.com/containerd/containerd/oci/spec_opts_windows.go +++ /dev/null @@ -1,89 +0,0 @@ -// +build windows - -/* - Copyright The containerd Authors. - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. -*/ - -package oci - -import ( - "context" - "encoding/json" - "fmt" - - "github.com/containerd/containerd/containers" - "github.com/containerd/containerd/content" - "github.com/containerd/containerd/images" - "github.com/opencontainers/image-spec/specs-go/v1" - specs "github.com/opencontainers/runtime-spec/specs-go" -) - -// WithImageConfig configures the spec to from the configuration of an Image -func WithImageConfig(image Image) SpecOpts { - return func(ctx context.Context, client Client, _ *containers.Container, s *Spec) error { - setProcess(s) - ic, err := image.Config(ctx) - if err != nil { - return err - } - var ( - ociimage v1.Image - config v1.ImageConfig - ) - switch ic.MediaType { - case v1.MediaTypeImageConfig, images.MediaTypeDockerSchema2Config: - p, err := content.ReadBlob(ctx, image.ContentStore(), ic) - if err != nil { - return err - } - if err := json.Unmarshal(p, &ociimage); err != nil { - return err - } - config = ociimage.Config - default: - return fmt.Errorf("unknown image config media type %s", ic.MediaType) - } - s.Process.Env = config.Env - s.Process.Args = append(config.Entrypoint, config.Cmd...) - s.Process.User = specs.User{ - Username: config.User, - } - return nil - } -} - -// WithTTY sets the information on the spec as well as the environment variables for -// using a TTY -func WithTTY(width, height int) SpecOpts { - return func(_ context.Context, _ Client, _ *containers.Container, s *Spec) error { - setProcess(s) - s.Process.Terminal = true - if s.Process.ConsoleSize == nil { - s.Process.ConsoleSize = &specs.Box{} - } - s.Process.ConsoleSize.Width = uint(width) - s.Process.ConsoleSize.Height = uint(height) - return nil - } -} - -// WithUsername sets the username on the process -func WithUsername(username string) SpecOpts { - return func(ctx context.Context, client Client, c *containers.Container, s *Spec) error { - setProcess(s) - s.Process.User.Username = username - return nil - } -} diff --git a/components/engine/vendor/github.com/containerd/containerd/oci/spec_unix.go b/components/engine/vendor/github.com/containerd/containerd/oci/spec_unix.go deleted file mode 100644 index cb69434cbae..00000000000 --- a/components/engine/vendor/github.com/containerd/containerd/oci/spec_unix.go +++ /dev/null @@ -1,188 +0,0 @@ -// +build !windows - -/* - Copyright The containerd Authors. - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. -*/ - -package oci - -import ( - "context" - "path/filepath" - - "github.com/containerd/containerd/namespaces" - specs "github.com/opencontainers/runtime-spec/specs-go" -) - -const ( - rwm = "rwm" - defaultRootfsPath = "rootfs" -) - -var ( - defaultEnv = []string{ - "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", - } -) - -func defaultCaps() []string { - return []string{ - "CAP_CHOWN", - "CAP_DAC_OVERRIDE", - "CAP_FSETID", - "CAP_FOWNER", - "CAP_MKNOD", - "CAP_NET_RAW", - "CAP_SETGID", - "CAP_SETUID", - "CAP_SETFCAP", - "CAP_SETPCAP", - "CAP_NET_BIND_SERVICE", - "CAP_SYS_CHROOT", - "CAP_KILL", - "CAP_AUDIT_WRITE", - } -} - -func defaultNamespaces() []specs.LinuxNamespace { - return []specs.LinuxNamespace{ - { - Type: specs.PIDNamespace, - }, - { - Type: specs.IPCNamespace, - }, - { - Type: specs.UTSNamespace, - }, - { - Type: specs.MountNamespace, - }, - { - Type: specs.NetworkNamespace, - }, - } -} - -func populateDefaultSpec(ctx context.Context, s *Spec, id string) error { - ns, err := namespaces.NamespaceRequired(ctx) - if err != nil { - return err - } - - *s = Spec{ - Version: specs.Version, - Root: &specs.Root{ - Path: defaultRootfsPath, - }, - Process: &specs.Process{ - Env: defaultEnv, - Cwd: "/", - NoNewPrivileges: true, - User: specs.User{ - UID: 0, - GID: 0, - }, - Capabilities: &specs.LinuxCapabilities{ - Bounding: defaultCaps(), - Permitted: defaultCaps(), - Inheritable: defaultCaps(), - Effective: defaultCaps(), - }, - Rlimits: []specs.POSIXRlimit{ - { - Type: "RLIMIT_NOFILE", - Hard: uint64(1024), - Soft: uint64(1024), - }, - }, - }, - Mounts: []specs.Mount{ - { - Destination: "/proc", - Type: "proc", - Source: "proc", - }, - { - Destination: "/dev", - Type: "tmpfs", - Source: "tmpfs", - Options: []string{"nosuid", "strictatime", "mode=755", "size=65536k"}, - }, - { - Destination: "/dev/pts", - Type: "devpts", - Source: "devpts", - Options: []string{"nosuid", "noexec", "newinstance", "ptmxmode=0666", "mode=0620", "gid=5"}, - }, - { - Destination: "/dev/shm", - Type: "tmpfs", - Source: "shm", - Options: []string{"nosuid", "noexec", "nodev", "mode=1777", "size=65536k"}, - }, - { - Destination: "/dev/mqueue", - Type: "mqueue", - Source: "mqueue", - Options: []string{"nosuid", "noexec", "nodev"}, - }, - { - Destination: "/sys", - Type: "sysfs", - Source: "sysfs", - Options: []string{"nosuid", "noexec", "nodev", "ro"}, - }, - { - Destination: "/run", - Type: "tmpfs", - Source: "tmpfs", - Options: []string{"nosuid", "strictatime", "mode=755", "size=65536k"}, - }, - }, - Linux: &specs.Linux{ - MaskedPaths: []string{ - "/proc/acpi", - "/proc/kcore", - "/proc/keys", - "/proc/latency_stats", - "/proc/timer_list", - "/proc/timer_stats", - "/proc/sched_debug", - "/sys/firmware", - "/proc/scsi", - }, - ReadonlyPaths: []string{ - "/proc/asound", - "/proc/bus", - "/proc/fs", - "/proc/irq", - "/proc/sys", - "/proc/sysrq-trigger", - }, - CgroupsPath: filepath.Join("/", ns, id), - Resources: &specs.LinuxResources{ - Devices: []specs.LinuxDeviceCgroup{ - { - Allow: false, - Access: rwm, - }, - }, - }, - Namespaces: defaultNamespaces(), - }, - } - return nil -} diff --git a/components/engine/vendor/github.com/containerd/containerd/platforms/defaults.go b/components/engine/vendor/github.com/containerd/containerd/platforms/defaults.go index b8d9c8277ff..a14d80e58cb 100644 --- a/components/engine/vendor/github.com/containerd/containerd/platforms/defaults.go +++ b/components/engine/vendor/github.com/containerd/containerd/platforms/defaults.go @@ -22,11 +22,6 @@ import ( specs "github.com/opencontainers/image-spec/specs-go/v1" ) -// Default returns the default matcher for the platform. -func Default() MatchComparer { - return Only(DefaultSpec()) -} - // DefaultString returns the default string specifier for the platform. func DefaultString() string { return Format(DefaultSpec()) diff --git a/components/engine/vendor/github.com/containerd/containerd/oci/spec_windows.go b/components/engine/vendor/github.com/containerd/containerd/platforms/defaults_unix.go similarity index 54% rename from components/engine/vendor/github.com/containerd/containerd/oci/spec_windows.go rename to components/engine/vendor/github.com/containerd/containerd/platforms/defaults_unix.go index d0236585dca..e8a7d5ffa0d 100644 --- a/components/engine/vendor/github.com/containerd/containerd/oci/spec_windows.go +++ b/components/engine/vendor/github.com/containerd/containerd/platforms/defaults_unix.go @@ -1,3 +1,5 @@ +// +build !windows + /* Copyright The containerd Authors. @@ -14,31 +16,9 @@ limitations under the License. */ -package oci - -import ( - "context" - - specs "github.com/opencontainers/runtime-spec/specs-go" -) +package platforms -func populateDefaultSpec(ctx context.Context, s *Spec, id string) error { - *s = Spec{ - Version: specs.Version, - Root: &specs.Root{}, - Process: &specs.Process{ - Cwd: `C:\`, - ConsoleSize: &specs.Box{ - Width: 80, - Height: 20, - }, - }, - Windows: &specs.Windows{ - IgnoreFlushesDuringBoot: true, - Network: &specs.WindowsNetwork{ - AllowUnqualifiedDNSQuery: true, - }, - }, - } - return nil +// Default returns the default matcher for the platform. +func Default() MatchComparer { + return Only(DefaultSpec()) } diff --git a/components/engine/vendor/github.com/containerd/containerd/task_opts_windows.go b/components/engine/vendor/github.com/containerd/containerd/platforms/defaults_windows.go similarity index 63% rename from components/engine/vendor/github.com/containerd/containerd/task_opts_windows.go rename to components/engine/vendor/github.com/containerd/containerd/platforms/defaults_windows.go index 60836bc8fac..0defbd36c04 100644 --- a/components/engine/vendor/github.com/containerd/containerd/task_opts_windows.go +++ b/components/engine/vendor/github.com/containerd/containerd/platforms/defaults_windows.go @@ -1,3 +1,5 @@ +// +build windows + /* Copyright The containerd Authors. @@ -14,18 +16,16 @@ limitations under the License. */ -package containerd +package platforms import ( - "context" - - specs "github.com/opencontainers/runtime-spec/specs-go" + specs "github.com/opencontainers/image-spec/specs-go/v1" ) -// WithResources sets the provided resources on the spec for task updates -func WithResources(resources *specs.WindowsResources) UpdateTaskOpts { - return func(ctx context.Context, client *Client, r *UpdateTaskInfo) error { - r.Resources = resources - return nil - } +// Default returns the default matcher for the platform. +func Default() MatchComparer { + return Ordered(DefaultSpec(), specs.Platform{ + OS: "linux", + Architecture: "amd64", + }) } diff --git a/components/engine/vendor/github.com/containerd/containerd/remotes/docker/fetcher.go b/components/engine/vendor/github.com/containerd/containerd/remotes/docker/fetcher.go index 1509e696cd1..4a2ce3c393b 100644 --- a/components/engine/vendor/github.com/containerd/containerd/remotes/docker/fetcher.go +++ b/components/engine/vendor/github.com/containerd/containerd/remotes/docker/fetcher.go @@ -117,7 +117,7 @@ func (r dockerFetcher) open(ctx context.Context, u, mediatype string, offset int } } else { // TODO: Should any cases where use of content range - // without the proper header be considerd? + // without the proper header be considered? // 206 responses? // Discard up to offset diff --git a/components/engine/vendor/github.com/containerd/containerd/remotes/docker/httpreadseeker.go b/components/engine/vendor/github.com/containerd/containerd/remotes/docker/httpreadseeker.go index 5a77789537d..9175b6a7a49 100644 --- a/components/engine/vendor/github.com/containerd/containerd/remotes/docker/httpreadseeker.go +++ b/components/engine/vendor/github.com/containerd/containerd/remotes/docker/httpreadseeker.go @@ -134,7 +134,7 @@ func (hrs *httpReadSeeker) reader() (io.Reader, error) { // There is an edge case here where offset == size of the content. If // we seek, we will probably get an error for content that cannot be // sought (?). In that case, we should err on committing the content, - // as the length is already satisified but we just return the empty + // as the length is already satisfied but we just return the empty // reader instead. hrs.rc = ioutil.NopCloser(bytes.NewReader([]byte{})) diff --git a/components/engine/vendor/github.com/containerd/containerd/remotes/docker/schema1/converter.go b/components/engine/vendor/github.com/containerd/containerd/remotes/docker/schema1/converter.go index 3155d6ec35d..45ac1933fd9 100644 --- a/components/engine/vendor/github.com/containerd/containerd/remotes/docker/schema1/converter.go +++ b/components/engine/vendor/github.com/containerd/containerd/remotes/docker/schema1/converter.go @@ -272,8 +272,14 @@ func (c *Converter) fetchBlob(ctx context.Context, desc ocispec.Descriptor) erro return err } - // TODO: Check if blob -> diff id mapping already exists - // TODO: Check if blob empty label exists + reuse, err := c.reuseLabelBlobState(ctx, desc) + if err != nil { + return err + } + + if reuse { + return nil + } ra, err := c.contentStore.ReaderAt(ctx, desc) if err != nil { @@ -343,6 +349,17 @@ func (c *Converter) fetchBlob(ctx context.Context, desc ocispec.Descriptor) erro state := calc.State() + cinfo := content.Info{ + Digest: desc.Digest, + Labels: map[string]string{ + "containerd.io/uncompressed": state.diffID.String(), + }, + } + + if _, err := c.contentStore.Update(ctx, cinfo, "labels.containerd.io/uncompressed"); err != nil { + return errors.Wrap(err, "failed to update uncompressed label") + } + c.mu.Lock() c.blobMap[desc.Digest] = state c.layerBlobs[state.diffID] = desc @@ -351,6 +368,40 @@ func (c *Converter) fetchBlob(ctx context.Context, desc ocispec.Descriptor) erro return nil } +func (c *Converter) reuseLabelBlobState(ctx context.Context, desc ocispec.Descriptor) (bool, error) { + cinfo, err := c.contentStore.Info(ctx, desc.Digest) + if err != nil { + return false, errors.Wrap(err, "failed to get blob info") + } + desc.Size = cinfo.Size + + diffID, ok := cinfo.Labels["containerd.io/uncompressed"] + if !ok { + return false, nil + } + + bState := blobState{empty: false} + + if bState.diffID, err = digest.Parse(diffID); err != nil { + log.G(ctx).WithField("id", desc.Digest).Warnf("failed to parse digest from label containerd.io/uncompressed: %v", diffID) + return false, nil + } + + // NOTE: there is no need to read header to get compression method + // because there are only two kinds of methods. + if bState.diffID == desc.Digest { + desc.MediaType = images.MediaTypeDockerSchema2Layer + } else { + desc.MediaType = images.MediaTypeDockerSchema2LayerGzip + } + + c.mu.Lock() + c.blobMap[desc.Digest] = bState + c.layerBlobs[bState.diffID] = desc + c.mu.Unlock() + return true, nil +} + func (c *Converter) schema1ManifestHistory() ([]ocispec.History, []digest.Digest, error) { if c.pulledManifest == nil { return nil, nil, errors.New("missing schema 1 manifest for conversion") diff --git a/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/proc/exec.go b/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/proc/exec.go index 9e5261adb38..96c425dd968 100644 --- a/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/proc/exec.go +++ b/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/proc/exec.go @@ -147,7 +147,7 @@ func (e *execProcess) start(ctx context.Context) (err error) { return errors.Wrap(err, "creating new NULL IO") } } else { - if e.io, err = runc.NewPipeIO(e.parent.IoUID, e.parent.IoGID); err != nil { + if e.io, err = runc.NewPipeIO(e.parent.IoUID, e.parent.IoGID, withConditionalIO(e.stdio)); err != nil { return errors.Wrap(err, "failed to create runc io pipes") } } diff --git a/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/proc/exec_state.go b/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/proc/exec_state.go index 617ec0d9785..ac546755284 100644 --- a/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/proc/exec_state.go +++ b/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/proc/exec_state.go @@ -60,11 +60,11 @@ func (s *execCreatedState) Start(ctx context.Context) error { } func (s *execCreatedState) Delete(ctx context.Context) error { - s.p.mu.Lock() - defer s.p.mu.Unlock() if err := s.p.delete(ctx); err != nil { return err } + s.p.mu.Lock() + defer s.p.mu.Unlock() return s.transition("deleted") } @@ -168,11 +168,11 @@ func (s *execStoppedState) Start(ctx context.Context) error { } func (s *execStoppedState) Delete(ctx context.Context) error { - s.p.mu.Lock() - defer s.p.mu.Unlock() if err := s.p.delete(ctx); err != nil { return err } + s.p.mu.Lock() + defer s.p.mu.Unlock() return s.transition("deleted") } diff --git a/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/proc/init.go b/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/proc/init.go index fe11285c7a9..5bf5f83443d 100644 --- a/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/proc/init.go +++ b/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/proc/init.go @@ -123,7 +123,7 @@ func (p *Init) Create(ctx context.Context, r *CreateConfig) error { return errors.Wrap(err, "creating new NULL IO") } } else { - if p.io, err = runc.NewPipeIO(p.IoUID, p.IoGID); err != nil { + if p.io, err = runc.NewPipeIO(p.IoUID, p.IoGID, withConditionalIO(p.stdio)); err != nil { return errors.Wrap(err, "failed to create OCI runtime io pipes") } } @@ -228,7 +228,7 @@ func (p *Init) Status(ctx context.Context) (string, error) { defer p.mu.Unlock() c, err := p.runtime.State(ctx, p.id) if err != nil { - if os.IsNotExist(err) { + if strings.Contains(err.Error(), "does not exist") { return "stopped", nil } return "", p.runtimeError(err, "OCI runtime state failed") @@ -249,7 +249,6 @@ func (p *Init) setExited(status int) { } func (p *Init) delete(context context.Context) error { - p.KillAll(context) p.wg.Wait() err := p.runtime.Delete(context, p.id, nil) // ignore errors if a runtime has already deleted the process @@ -400,3 +399,11 @@ func (p *Init) runtimeError(rErr error, msg string) error { return errors.Errorf("%s: %s", msg, rMsg) } } + +func withConditionalIO(c proc.Stdio) runc.IOOpt { + return func(o *runc.IOOption) { + o.OpenStdin = c.Stdin != "" + o.OpenStdout = c.Stdout != "" + o.OpenStderr = c.Stderr != "" + } +} diff --git a/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/proc/io.go b/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/proc/io.go index c9b7145c866..71f6ee1bb3a 100644 --- a/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/proc/io.go +++ b/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/proc/io.go @@ -109,7 +109,6 @@ func copyPipes(ctx context.Context, rio runc.IO, stdin, stdout, stderr string, w i.dest(fw, fr) } if stdin == "" { - rio.Stdin().Close() return nil } f, err := fifo.OpenFifo(ctx, stdin, syscall.O_RDONLY|syscall.O_NONBLOCK, 0) diff --git a/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/runtime.go b/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/runtime.go index 6c08fe97813..d19b8e51680 100644 --- a/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/runtime.go +++ b/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/runtime.go @@ -26,7 +26,6 @@ import ( "path/filepath" "time" - "github.com/boltdb/bolt" eventstypes "github.com/containerd/containerd/api/events" "github.com/containerd/containerd/api/types" "github.com/containerd/containerd/containers" @@ -49,6 +48,7 @@ import ( ocispec "github.com/opencontainers/image-spec/specs-go/v1" "github.com/pkg/errors" "github.com/sirupsen/logrus" + bolt "go.etcd.io/bbolt" "golang.org/x/sys/unix" ) @@ -204,7 +204,7 @@ func (r *Runtime) Create(ctx context.Context, id string, opts runtime.CreateOpts log.G(ctx).WithError(err).WithFields(logrus.Fields{ "id": id, "namespace": namespace, - }).Warn("failed to clen up after killed shim") + }).Warn("failed to clean up after killed shim") } } shimopt = ShimRemote(r.config, r.address, cgroup, exitHandler) @@ -248,8 +248,7 @@ func (r *Runtime) Create(ctx context.Context, id string, opts runtime.CreateOpts if err != nil { return nil, errdefs.FromGRPC(err) } - t, err := newTask(id, namespace, int(cr.Pid), s, r.events, - proc.NewRunc(ropts.RuntimeRoot, sopts.Bundle, namespace, rt, ropts.CriuPath, ropts.SystemdCgroup), r.tasks, bundle) + t, err := newTask(id, namespace, int(cr.Pid), s, r.events, r.tasks, bundle) if err != nil { return nil, err } @@ -341,15 +340,8 @@ func (r *Runtime) loadTasks(ctx context.Context, ns string) ([]*Task, error) { } continue } - ropts, err := r.getRuncOptions(ctx, id) - if err != nil { - log.G(ctx).WithError(err).WithField("id", id). - Error("get runtime options") - continue - } - t, err := newTask(id, ns, pid, s, r.events, - proc.NewRunc(ropts.RuntimeRoot, bundle.path, ns, ropts.Runtime, ropts.CriuPath, ropts.SystemdCgroup), r.tasks, bundle) + t, err := newTask(id, ns, pid, s, r.events, r.tasks, bundle) if err != nil { log.G(ctx).WithError(err).Error("loading task type") continue diff --git a/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/task.go b/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/task.go index e90110997eb..38da35c085f 100644 --- a/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/task.go +++ b/components/engine/vendor/github.com/containerd/containerd/runtime/v1/linux/task.go @@ -31,8 +31,7 @@ import ( "github.com/containerd/containerd/log" "github.com/containerd/containerd/runtime" "github.com/containerd/containerd/runtime/v1/shim/client" - shim "github.com/containerd/containerd/runtime/v1/shim/v1" - runc "github.com/containerd/go-runc" + "github.com/containerd/containerd/runtime/v1/shim/v1" "github.com/containerd/ttrpc" "github.com/containerd/typeurl" "github.com/gogo/protobuf/types" @@ -52,7 +51,7 @@ type Task struct { bundle *bundle } -func newTask(id, namespace string, pid int, shim *client.Client, events *exchange.Exchange, runtime *runc.Runc, list *runtime.TaskList, bundle *bundle) (*Task, error) { +func newTask(id, namespace string, pid int, shim *client.Client, events *exchange.Exchange, list *runtime.TaskList, bundle *bundle) (*Task, error) { var ( err error cg cgroups.Cgroup diff --git a/components/engine/vendor/github.com/containerd/containerd/runtime/v1/shim/service.go b/components/engine/vendor/github.com/containerd/containerd/runtime/v1/shim/service.go index c0e7c868a6f..d76d5803d68 100644 --- a/components/engine/vendor/github.com/containerd/containerd/runtime/v1/shim/service.go +++ b/components/engine/vendor/github.com/containerd/containerd/runtime/v1/shim/service.go @@ -20,7 +20,9 @@ package shim import ( "context" + "encoding/json" "fmt" + "io/ioutil" "os" "path/filepath" "sync" @@ -41,6 +43,7 @@ import ( runc "github.com/containerd/go-runc" "github.com/containerd/typeurl" ptypes "github.com/gogo/protobuf/types" + specs "github.com/opencontainers/runtime-spec/specs-go" "github.com/pkg/errors" "github.com/sirupsen/logrus" "google.golang.org/grpc/codes" @@ -221,19 +224,21 @@ func (s *Service) Delete(ctx context.Context, r *ptypes.Empty) (*shimapi.DeleteR // DeleteProcess deletes an exec'd process func (s *Service) DeleteProcess(ctx context.Context, r *shimapi.DeleteProcessRequest) (*shimapi.DeleteResponse, error) { - s.mu.Lock() - defer s.mu.Unlock() if r.ID == s.id { return nil, status.Errorf(codes.InvalidArgument, "cannot delete init process with DeleteProcess") } + s.mu.Lock() p := s.processes[r.ID] + s.mu.Unlock() if p == nil { return nil, errors.Wrapf(errdefs.ErrNotFound, "process %s", r.ID) } if err := p.Delete(ctx); err != nil { return nil, err } + s.mu.Lock() delete(s.processes, r.ID) + s.mu.Unlock() return &shimapi.DeleteResponse{ ExitStatus: uint32(p.ExitStatus()), ExitedAt: p.ExitedAt(), @@ -507,13 +512,22 @@ func (s *Service) processExits() { func (s *Service) checkProcesses(e runc.Exit) { s.mu.Lock() defer s.mu.Unlock() + + shouldKillAll, err := shouldKillAllOnExit(s.bundle) + if err != nil { + log.G(s.context).WithError(err).Error("failed to check shouldKillAll") + } + for _, p := range s.processes { if p.Pid() == e.Pid { - if ip, ok := p.(*proc.Init); ok { - // Ensure all children are killed - if err := ip.KillAll(s.context); err != nil { - log.G(s.context).WithError(err).WithField("id", ip.ID()). - Error("failed to kill init's children") + + if shouldKillAll { + if ip, ok := p.(*proc.Init); ok { + // Ensure all children are killed + if err := ip.KillAll(s.context); err != nil { + log.G(s.context).WithError(err).WithField("id", ip.ID()). + Error("failed to kill init's children") + } } } p.SetExited(e.Status) @@ -529,6 +543,25 @@ func (s *Service) checkProcesses(e runc.Exit) { } } +func shouldKillAllOnExit(bundlePath string) (bool, error) { + var bundleSpec specs.Spec + bundleConfigContents, err := ioutil.ReadFile(filepath.Join(bundlePath, "config.json")) + if err != nil { + return false, err + } + json.Unmarshal(bundleConfigContents, &bundleSpec) + + if bundleSpec.Linux != nil { + for _, ns := range bundleSpec.Linux.Namespaces { + if ns.Type == specs.PIDNamespace { + return false, nil + } + } + } + + return true, nil +} + func (s *Service) getContainerPids(ctx context.Context, id string) ([]uint32, error) { s.mu.Lock() defer s.mu.Unlock() diff --git a/components/engine/vendor/github.com/containerd/containerd/services/server/server.go b/components/engine/vendor/github.com/containerd/containerd/services/server/server.go index 3b2852e429d..ed10766f3d9 100644 --- a/components/engine/vendor/github.com/containerd/containerd/services/server/server.go +++ b/components/engine/vendor/github.com/containerd/containerd/services/server/server.go @@ -29,7 +29,6 @@ import ( "sync" "time" - "github.com/boltdb/bolt" csapi "github.com/containerd/containerd/api/services/content/v1" ssapi "github.com/containerd/containerd/api/services/snapshots/v1" "github.com/containerd/containerd/content" @@ -46,6 +45,7 @@ import ( metrics "github.com/docker/go-metrics" grpc_prometheus "github.com/grpc-ecosystem/go-grpc-prometheus" "github.com/pkg/errors" + bolt "go.etcd.io/bbolt" "google.golang.org/grpc" ) diff --git a/components/engine/vendor/github.com/containerd/containerd/sys/socket_unix.go b/components/engine/vendor/github.com/containerd/containerd/sys/socket_unix.go index 0dbca0e3335..90fa55c482f 100644 --- a/components/engine/vendor/github.com/containerd/containerd/sys/socket_unix.go +++ b/components/engine/vendor/github.com/containerd/containerd/sys/socket_unix.go @@ -42,7 +42,7 @@ func CreateUnixSocket(path string) (net.Listener, error) { return net.Listen("unix", path) } -// GetLocalListener returns a listerner out of a unix socket. +// GetLocalListener returns a listener out of a unix socket. func GetLocalListener(path string, uid, gid int) (net.Listener, error) { // Ensure parent directory is created if err := mkdirAs(filepath.Dir(path), uid, gid); err != nil { diff --git a/components/engine/vendor/github.com/containerd/containerd/task.go b/components/engine/vendor/github.com/containerd/containerd/task.go index 750075f8dbd..6806e116208 100644 --- a/components/engine/vendor/github.com/containerd/containerd/task.go +++ b/components/engine/vendor/github.com/containerd/containerd/task.go @@ -607,8 +607,11 @@ func writeContent(ctx context.Context, store content.Ingester, mediaType, ref st if err != nil { return d, err } + if err := writer.Commit(ctx, size, "", opts...); err != nil { - return d, err + if !errdefs.IsAlreadyExists(err) { + return d, err + } } return v1.Descriptor{ MediaType: mediaType, diff --git a/components/engine/vendor/github.com/containerd/containerd/task_opts.go b/components/engine/vendor/github.com/containerd/containerd/task_opts.go index 9e998a34980..ce861ea51dd 100644 --- a/components/engine/vendor/github.com/containerd/containerd/task_opts.go +++ b/components/engine/vendor/github.com/containerd/containerd/task_opts.go @@ -18,10 +18,18 @@ package containerd import ( "context" + "encoding/json" + "fmt" "syscall" + "github.com/containerd/containerd/api/types" + "github.com/containerd/containerd/content" "github.com/containerd/containerd/errdefs" + "github.com/containerd/containerd/images" "github.com/containerd/containerd/mount" + imagespec "github.com/opencontainers/image-spec/specs-go/v1" + "github.com/opencontainers/runtime-spec/specs-go" + "github.com/pkg/errors" ) // NewTaskOpts allows the caller to set options on a new task @@ -35,6 +43,44 @@ func WithRootFS(mounts []mount.Mount) NewTaskOpts { } } +// WithTaskCheckpoint allows a task to be created with live runtime and memory data from a +// previous checkpoint. Additional software such as CRIU may be required to +// restore a task from a checkpoint +func WithTaskCheckpoint(im Image) NewTaskOpts { + return func(ctx context.Context, c *Client, info *TaskInfo) error { + desc := im.Target() + id := desc.Digest + index, err := decodeIndex(ctx, c.ContentStore(), desc) + if err != nil { + return err + } + for _, m := range index.Manifests { + if m.MediaType == images.MediaTypeContainerd1Checkpoint { + info.Checkpoint = &types.Descriptor{ + MediaType: m.MediaType, + Size_: m.Size, + Digest: m.Digest, + } + return nil + } + } + return fmt.Errorf("checkpoint not found in index %s", id) + } +} + +func decodeIndex(ctx context.Context, store content.Provider, desc imagespec.Descriptor) (*imagespec.Index, error) { + var index imagespec.Index + p, err := content.ReadBlob(ctx, store, desc) + if err != nil { + return nil, err + } + if err := json.Unmarshal(p, &index); err != nil { + return nil, err + } + + return &index, nil +} + // WithCheckpointName sets the image name for the checkpoint func WithCheckpointName(name string) CheckpointTaskOpts { return func(r *CheckpointTaskInfo) error { @@ -92,3 +138,19 @@ func WithKillExecID(execID string) KillOpts { return nil } } + +// WithResources sets the provided resources for task updates. Resources must be +// either a *specs.LinuxResources or a *specs.WindowsResources +func WithResources(resources interface{}) UpdateTaskOpts { + return func(ctx context.Context, client *Client, r *UpdateTaskInfo) error { + switch resources.(type) { + case *specs.LinuxResources: + case *specs.WindowsResources: + default: + return errors.New("WithResources requires a *specs.LinuxResources or *specs.WindowsResources") + } + + r.Resources = resources + return nil + } +} diff --git a/components/engine/vendor/github.com/containerd/containerd/task_opts_linux.go b/components/engine/vendor/github.com/containerd/containerd/task_opts_unix.go similarity index 72% rename from components/engine/vendor/github.com/containerd/containerd/task_opts_linux.go rename to components/engine/vendor/github.com/containerd/containerd/task_opts_unix.go index 551cb996c19..f8652be3bc6 100644 --- a/components/engine/vendor/github.com/containerd/containerd/task_opts_linux.go +++ b/components/engine/vendor/github.com/containerd/containerd/task_opts_unix.go @@ -1,3 +1,5 @@ +// +build !windows + /* Copyright The containerd Authors. @@ -18,20 +20,11 @@ package containerd import ( "context" - "errors" "github.com/containerd/containerd/runtime/linux/runctypes" - "github.com/opencontainers/runtime-spec/specs-go" + "github.com/pkg/errors" ) -// WithResources sets the provided resources for task updates -func WithResources(resources *specs.LinuxResources) UpdateTaskOpts { - return func(ctx context.Context, client *Client, r *UpdateTaskInfo) error { - r.Resources = resources - return nil - } -} - // WithNoNewKeyring causes tasks not to be created with a new keyring for secret storage. // There is an upper limit on the number of keyrings in a linux system func WithNoNewKeyring(ctx context.Context, c *Client, ti *TaskInfo) error { @@ -46,3 +39,19 @@ func WithNoNewKeyring(ctx context.Context, c *Client, ti *TaskInfo) error { opts.NoNewKeyring = true return nil } + +// WithNoPivotRoot instructs the runtime not to you pivot_root +func WithNoPivotRoot(_ context.Context, _ *Client, info *TaskInfo) error { + if info.Options == nil { + info.Options = &runctypes.CreateOptions{ + NoPivotRoot: true, + } + return nil + } + opts, ok := info.Options.(*runctypes.CreateOptions) + if !ok { + return errors.New("invalid options type, expected runctypes.CreateOptions") + } + opts.NoPivotRoot = true + return nil +} diff --git a/components/engine/vendor/github.com/containerd/containerd/vendor.conf b/components/engine/vendor/github.com/containerd/containerd/vendor.conf index 094a1bed5ac..1bcd620ea3c 100644 --- a/components/engine/vendor/github.com/containerd/containerd/vendor.conf +++ b/components/engine/vendor/github.com/containerd/containerd/vendor.conf @@ -1,10 +1,10 @@ -github.com/containerd/go-runc acb7c88cac264acca9b5eae187a117f4d77a1292 +github.com/containerd/go-runc 5a6d9f37cfa36b15efba46dc7ea349fa9b7143c3 github.com/containerd/console c12b1e7919c14469339a5d38f2f8ed9b64a9de23 github.com/containerd/cgroups 5e610833b72089b37d0e615de9a92dfc043757c2 github.com/containerd/typeurl a93fcdb778cd272c6e9b3028b2f42d813e785d40 github.com/containerd/fifo 3d5202aec260678c48179c56f40e6f38a095738c github.com/containerd/btrfs 2e1aa0ddf94f91fa282b6ed87c23bf0d64911244 -github.com/containerd/continuity d3c23511c1bf5851696cba83143d9cbcd666869b +github.com/containerd/continuity f44b615e492bdfb371aae2f76ec694d9da1db537 github.com/coreos/go-systemd 48702e0da86bd25e76cfef347e2adeb434a0d0a6 github.com/docker/go-metrics 4ea375f7759c82740c893fc030bc37088d2ec098 github.com/docker/go-events 9461782956ad83b30282bf90e31fa6a70c255ba9 @@ -19,7 +19,7 @@ github.com/matttproud/golang_protobuf_extensions v1.0.0 github.com/gogo/protobuf v1.0.0 github.com/gogo/googleapis 08a7655d27152912db7aaf4f983275eaf8d128ef github.com/golang/protobuf v1.1.0 -github.com/opencontainers/runtime-spec d810dbc60d8c5aeeb3d054bd1132fab2121968ce # v1.0.1-43-gd810dbc +github.com/opencontainers/runtime-spec eba862dc2470385a233c7507392675cbeadf7353 # v1.0.1-45-geba862d github.com/opencontainers/runc 20aff4f0488c6d4b8df4d85b4f63f1f704c11abd github.com/sirupsen/logrus v1.0.0 github.com/urfave/cli 7bc6a0acffa589f415f88aca16cc1de5ffd66f9c @@ -34,17 +34,17 @@ github.com/BurntSushi/toml a368813c5e648fee92e5f6c30e3944ff9d5e8895 github.com/grpc-ecosystem/go-grpc-prometheus 6b7015e65d366bf3f19b2b2a000a831940f0f7e0 github.com/Microsoft/go-winio v0.4.10 github.com/Microsoft/hcsshim 44c060121b68e8bdc40b411beba551f3b4ee9e55 -github.com/boltdb/bolt e9cf4fae01b5a8ff89d0ec6b32f0d9c9f79aefdd google.golang.org/genproto d80a6e20e776b0b17a324d0ba1ab50a39c8e8944 golang.org/x/text 19e51611da83d6be54ddafce4a4af510cb3e9ea4 github.com/containerd/ttrpc 94dde388801693c54f88a6596f713b51a8b30b2d github.com/syndtr/gocapability db04d3cc01c8b54962a58ec7e491717d06cfcc16 gotest.tools v2.1.0 github.com/google/go-cmp v0.1.0 +go.etcd.io/bbolt v1.3.1-etcd.8 # cri dependencies -github.com/containerd/cri v1.11.1 -github.com/containerd/go-cni 5882530828ecf62032409b298a3e8b19e08b6534 +github.com/containerd/cri 9f39e3289533fc228c5e5fcac0a6dbdd60c6047b # release/1.2 branch +github.com/containerd/go-cni 6d7b509a054a3cb1c35ed1865d4fde2f0cb547cd github.com/blang/semver v3.1.0 github.com/containernetworking/cni v0.6.0 github.com/containernetworking/plugins v0.7.0 @@ -52,32 +52,33 @@ github.com/davecgh/go-spew v1.1.0 github.com/docker/distribution b38e5838b7b2f2ad48e06ec4b500011976080621 github.com/docker/docker 86f080cff0914e9694068ed78d503701667c4c00 github.com/docker/spdystream 449fdfce4d962303d702fec724ef0ad181c92528 -github.com/emicklei/go-restful ff4f55a206334ef123e4f79bbf348980da81ca46 -github.com/ghodss/yaml 73d445a93680fa1a78ae23a5839bad48f32ba1ee +github.com/emicklei/go-restful v2.2.1 +github.com/ghodss/yaml v1.0.0 github.com/golang/glog 44145f04b68cf362d9c4df2182967c2275eaefed github.com/google/gofuzz 44d81051d367757e1c7c6a5a86423ece9afcf63c github.com/hashicorp/errwrap 7554cd9344cec97297fa6649b055a8c98c2a1e55 github.com/hashicorp/go-multierror ed905158d87462226a13fe39ddf685ea65f1c11f -github.com/json-iterator/go f2b4162afba35581b6d4a50d3b8f34e33c144682 -github.com/modern-go/reflect2 05fbef0ca5da472bbf96c9322b84a53edc03c9fd +github.com/json-iterator/go 1.1.5 +github.com/modern-go/reflect2 1.0.1 github.com/modern-go/concurrent 1.0.3 github.com/opencontainers/runtime-tools v0.6.0 -github.com/opencontainers/selinux 4a2974bf1ee960774ffd517717f1f45325af0206 +github.com/opencontainers/selinux b6fa367ed7f534f9ba25391cc2d467085dbb445a github.com/seccomp/libseccomp-golang 32f571b70023028bd57d9288c20efbcb237f3ce0 -github.com/tchap/go-patricia 5ad6cdb7538b0097d5598c7e57f0a24072adf7dc +github.com/tchap/go-patricia v2.2.6 github.com/xeipuuv/gojsonpointer 4e3ac2762d5f479393488629ee9370b50873b3a6 github.com/xeipuuv/gojsonreference bd5ef7bd5415a7ac448318e64f11a24cd21e594b github.com/xeipuuv/gojsonschema 1d523034197ff1f222f6429836dd36a2457a1874 golang.org/x/crypto 49796115aa4b964c318aad4f3084fdb41e9aa067 +golang.org/x/oauth2 a6bd8cefa1811bd24b86f8902872e4e8225f74c4 golang.org/x/time f51c12702a4d776e4c1fa9b0fabab841babae631 gopkg.in/inf.v0 3887ee99ecf07df5b447e9b00d9c0b2adaa9f3e4 -gopkg.in/yaml.v2 53feefa2559fb8dfa8d81baad31be332c97d6c77 -k8s.io/api 9e5ffd1f1320950b238cfce291b926411f0af722 -k8s.io/apimachinery ed135c5b96450fd24e5e981c708114fbbd950697 -k8s.io/apiserver a90e3a95c2e91b944bfca8225c4e0d12e42a9eb5 -k8s.io/client-go 03bfb9bdcfe5482795b999f39ca3ed9ad42ce5bb -k8s.io/kubernetes v1.11.0 -k8s.io/utils 733eca437aa39379e4bcc25e726439dfca40fcff +gopkg.in/yaml.v2 v2.2.1 +k8s.io/api 012f271b5d41baad56190c5f1ae19bff16df0fd8 +k8s.io/apimachinery 6429050ef506887d121f3e7306e894f8900d8a63 +k8s.io/apiserver e9312c15296b6c2c923ebd5031ff5d1d5fd022d7 +k8s.io/client-go 37c3c02ec96533daec0dbda1f39a6b1d68505c79 +k8s.io/kubernetes v1.12.0-beta.1 +k8s.io/utils 982821ea41da7e7c15f3d3738921eb2e7e241ccd # zfs dependencies github.com/containerd/zfs 9a0b8b8b5982014b729cd34eb7cd7a11062aa6ec @@ -85,4 +86,4 @@ github.com/mistifyio/go-zfs 166add352731e515512690329794ee593f1aaff2 github.com/pborman/uuid c65b2f87fee37d1c7854c9164a450713c28d50cd # aufs dependencies -github.com/containerd/aufs a7fbd554da7a9eafbe5a460a421313a9fd18d988 +github.com/containerd/aufs ffa39970e26ad01d81f540b21e65f9c1841a5f92 diff --git a/components/engine/vendor/github.com/containerd/continuity/context.go b/components/engine/vendor/github.com/containerd/continuity/context.go new file mode 100644 index 00000000000..45b73dc9ed7 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/context.go @@ -0,0 +1,657 @@ +package continuity + +import ( + "bytes" + "fmt" + "io" + "log" + "os" + "path/filepath" + "strings" + + "github.com/containerd/continuity/devices" + driverpkg "github.com/containerd/continuity/driver" + "github.com/containerd/continuity/pathdriver" + + "github.com/opencontainers/go-digest" +) + +var ( + // ErrNotFound represents the resource not found + ErrNotFound = fmt.Errorf("not found") + // ErrNotSupported represents the resource not supported + ErrNotSupported = fmt.Errorf("not supported") +) + +// Context represents a file system context for accessing resources. The +// responsibility of the context is to convert system specific resources to +// generic Resource objects. Most of this is safe path manipulation, as well +// as extraction of resource details. +type Context interface { + Apply(Resource) error + Verify(Resource) error + Resource(string, os.FileInfo) (Resource, error) + Walk(filepath.WalkFunc) error +} + +// SymlinkPath is intended to give the symlink target value +// in a root context. Target and linkname are absolute paths +// not under the given root. +type SymlinkPath func(root, linkname, target string) (string, error) + +// ContextOptions represents options to create a new context. +type ContextOptions struct { + Digester Digester + Driver driverpkg.Driver + PathDriver pathdriver.PathDriver + Provider ContentProvider +} + +// context represents a file system context for accessing resources. +// Generally, all path qualified access and system considerations should land +// here. +type context struct { + driver driverpkg.Driver + pathDriver pathdriver.PathDriver + root string + digester Digester + provider ContentProvider +} + +// NewContext returns a Context associated with root. The default driver will +// be used, as returned by NewDriver. +func NewContext(root string) (Context, error) { + return NewContextWithOptions(root, ContextOptions{}) +} + +// NewContextWithOptions returns a Context associate with the root. +func NewContextWithOptions(root string, options ContextOptions) (Context, error) { + // normalize to absolute path + pathDriver := options.PathDriver + if pathDriver == nil { + pathDriver = pathdriver.LocalPathDriver + } + + root = pathDriver.FromSlash(root) + root, err := pathDriver.Abs(pathDriver.Clean(root)) + if err != nil { + return nil, err + } + + driver := options.Driver + if driver == nil { + driver, err = driverpkg.NewSystemDriver() + if err != nil { + return nil, err + } + } + + digester := options.Digester + if digester == nil { + digester = simpleDigester{digest.Canonical} + } + + // Check the root directory. Need to be a little careful here. We are + // allowing a link for now, but this may have odd behavior when + // canonicalizing paths. As long as all files are opened through the link + // path, this should be okay. + fi, err := driver.Stat(root) + if err != nil { + return nil, err + } + + if !fi.IsDir() { + return nil, &os.PathError{Op: "NewContext", Path: root, Err: os.ErrInvalid} + } + + return &context{ + root: root, + driver: driver, + pathDriver: pathDriver, + digester: digester, + provider: options.Provider, + }, nil +} + +// Resource returns the resource as path p, populating the entry with info +// from fi. The path p should be the path of the resource in the context, +// typically obtained through Walk or from the value of Resource.Path(). If fi +// is nil, it will be resolved. +func (c *context) Resource(p string, fi os.FileInfo) (Resource, error) { + fp, err := c.fullpath(p) + if err != nil { + return nil, err + } + + if fi == nil { + fi, err = c.driver.Lstat(fp) + if err != nil { + return nil, err + } + } + + base, err := newBaseResource(p, fi) + if err != nil { + return nil, err + } + + base.xattrs, err = c.resolveXAttrs(fp, fi, base) + if err == ErrNotSupported { + log.Printf("resolving xattrs on %s not supported", fp) + } else if err != nil { + return nil, err + } + + // TODO(stevvooe): Handle windows alternate data streams. + + if fi.Mode().IsRegular() { + dgst, err := c.digest(p) + if err != nil { + return nil, err + } + + return newRegularFile(*base, base.paths, fi.Size(), dgst) + } + + if fi.Mode().IsDir() { + return newDirectory(*base) + } + + if fi.Mode()&os.ModeSymlink != 0 { + // We handle relative links vs absolute links by including a + // beginning slash for absolute links. Effectively, the bundle's + // root is treated as the absolute link anchor. + target, err := c.driver.Readlink(fp) + if err != nil { + return nil, err + } + + return newSymLink(*base, target) + } + + if fi.Mode()&os.ModeNamedPipe != 0 { + return newNamedPipe(*base, base.paths) + } + + if fi.Mode()&os.ModeDevice != 0 { + deviceDriver, ok := c.driver.(driverpkg.DeviceInfoDriver) + if !ok { + log.Printf("device extraction not supported %s", fp) + return nil, ErrNotSupported + } + + // character and block devices merely need to recover the + // major/minor device number. + major, minor, err := deviceDriver.DeviceInfo(fi) + if err != nil { + return nil, err + } + + return newDevice(*base, base.paths, major, minor) + } + + log.Printf("%q (%v) is not supported", fp, fi.Mode()) + return nil, ErrNotFound +} + +func (c *context) verifyMetadata(resource, target Resource) error { + if target.Mode() != resource.Mode() { + return fmt.Errorf("resource %q has incorrect mode: %v != %v", target.Path(), target.Mode(), resource.Mode()) + } + + if target.UID() != resource.UID() { + return fmt.Errorf("unexpected uid for %q: %v != %v", target.Path(), target.UID(), resource.GID()) + } + + if target.GID() != resource.GID() { + return fmt.Errorf("unexpected gid for %q: %v != %v", target.Path(), target.GID(), target.GID()) + } + + if xattrer, ok := resource.(XAttrer); ok { + txattrer, tok := target.(XAttrer) + if !tok { + return fmt.Errorf("resource %q has xattrs but target does not support them", resource.Path()) + } + + // For xattrs, only ensure that we have those defined in the resource + // and their values match. We can ignore other xattrs. In other words, + // we only verify that target has the subset defined by resource. + txattrs := txattrer.XAttrs() + for attr, value := range xattrer.XAttrs() { + tvalue, ok := txattrs[attr] + if !ok { + return fmt.Errorf("resource %q target missing xattr %q", resource.Path(), attr) + } + + if !bytes.Equal(value, tvalue) { + return fmt.Errorf("xattr %q value differs for resource %q", attr, resource.Path()) + } + } + } + + switch r := resource.(type) { + case RegularFile: + // TODO(stevvooe): Another reason to use a record-based approach. We + // have to do another type switch to get this to work. This could be + // fixed with an Equal function, but let's study this a little more to + // be sure. + t, ok := target.(RegularFile) + if !ok { + return fmt.Errorf("resource %q target not a regular file", r.Path()) + } + + if t.Size() != r.Size() { + return fmt.Errorf("resource %q target has incorrect size: %v != %v", t.Path(), t.Size(), r.Size()) + } + case Directory: + t, ok := target.(Directory) + if !ok { + return fmt.Errorf("resource %q target not a directory", t.Path()) + } + case SymLink: + t, ok := target.(SymLink) + if !ok { + return fmt.Errorf("resource %q target not a symlink", t.Path()) + } + + if t.Target() != r.Target() { + return fmt.Errorf("resource %q target has mismatched target: %q != %q", t.Path(), t.Target(), r.Target()) + } + case Device: + t, ok := target.(Device) + if !ok { + return fmt.Errorf("resource %q is not a device", t.Path()) + } + + if t.Major() != r.Major() || t.Minor() != r.Minor() { + return fmt.Errorf("resource %q has mismatched major/minor numbers: %d,%d != %d,%d", t.Path(), t.Major(), t.Minor(), r.Major(), r.Minor()) + } + case NamedPipe: + t, ok := target.(NamedPipe) + if !ok { + return fmt.Errorf("resource %q is not a named pipe", t.Path()) + } + default: + return fmt.Errorf("cannot verify resource: %v", resource) + } + + return nil +} + +// Verify the resource in the context. An error will be returned a discrepancy +// is found. +func (c *context) Verify(resource Resource) error { + fp, err := c.fullpath(resource.Path()) + if err != nil { + return err + } + + fi, err := c.driver.Lstat(fp) + if err != nil { + return err + } + + target, err := c.Resource(resource.Path(), fi) + if err != nil { + return err + } + + if target.Path() != resource.Path() { + return fmt.Errorf("resource paths do not match: %q != %q", target.Path(), resource.Path()) + } + + if err := c.verifyMetadata(resource, target); err != nil { + return err + } + + if h, isHardlinkable := resource.(Hardlinkable); isHardlinkable { + hardlinkKey, err := newHardlinkKey(fi) + if err == errNotAHardLink { + if len(h.Paths()) > 1 { + return fmt.Errorf("%q is not a hardlink to %q", h.Paths()[1], resource.Path()) + } + } else if err != nil { + return err + } + + for _, path := range h.Paths()[1:] { + fpLink, err := c.fullpath(path) + if err != nil { + return err + } + + fiLink, err := c.driver.Lstat(fpLink) + if err != nil { + return err + } + + targetLink, err := c.Resource(path, fiLink) + if err != nil { + return err + } + + hardlinkKeyLink, err := newHardlinkKey(fiLink) + if err != nil { + return err + } + + if hardlinkKeyLink != hardlinkKey { + return fmt.Errorf("%q is not a hardlink to %q", path, resource.Path()) + } + + if err := c.verifyMetadata(resource, targetLink); err != nil { + return err + } + } + } + + switch r := resource.(type) { + case RegularFile: + t, ok := target.(RegularFile) + if !ok { + return fmt.Errorf("resource %q target not a regular file", r.Path()) + } + + // TODO(stevvooe): This may need to get a little more sophisticated + // for digest comparison. We may want to actually calculate the + // provided digests, rather than the implementations having an + // overlap. + if !digestsMatch(t.Digests(), r.Digests()) { + return fmt.Errorf("digests for resource %q do not match: %v != %v", t.Path(), t.Digests(), r.Digests()) + } + } + + return nil +} + +func (c *context) checkoutFile(fp string, rf RegularFile) error { + if c.provider == nil { + return fmt.Errorf("no file provider") + } + var ( + r io.ReadCloser + err error + ) + for _, dgst := range rf.Digests() { + r, err = c.provider.Reader(dgst) + if err == nil { + break + } + } + if err != nil { + return fmt.Errorf("file content could not be provided: %v", err) + } + defer r.Close() + + return atomicWriteFile(fp, r, rf.Size(), rf.Mode()) +} + +// Apply the resource to the contexts. An error will be returned if the +// operation fails. Depending on the resource type, the resource may be +// created. For resource that cannot be resolved, an error will be returned. +func (c *context) Apply(resource Resource) error { + fp, err := c.fullpath(resource.Path()) + if err != nil { + return err + } + + if !strings.HasPrefix(fp, c.root) { + return fmt.Errorf("resource %v escapes root", resource) + } + + var chmod = true + fi, err := c.driver.Lstat(fp) + if err != nil { + if !os.IsNotExist(err) { + return err + } + } + + switch r := resource.(type) { + case RegularFile: + if fi == nil { + if err := c.checkoutFile(fp, r); err != nil { + return fmt.Errorf("error checking out file %q: %v", resource.Path(), err) + } + chmod = false + } else { + if !fi.Mode().IsRegular() { + return fmt.Errorf("file %q should be a regular file, but is not", resource.Path()) + } + if fi.Size() != r.Size() { + if err := c.checkoutFile(fp, r); err != nil { + return fmt.Errorf("error checking out file %q: %v", resource.Path(), err) + } + } else { + for _, dgst := range r.Digests() { + f, err := os.Open(fp) + if err != nil { + return fmt.Errorf("failure opening file for read %q: %v", resource.Path(), err) + } + compared, err := dgst.Algorithm().FromReader(f) + if err == nil && dgst != compared { + if err := c.checkoutFile(fp, r); err != nil { + return fmt.Errorf("error checking out file %q: %v", resource.Path(), err) + } + break + } + if err1 := f.Close(); err == nil { + err = err1 + } + if err != nil { + return fmt.Errorf("error checking digest for %q: %v", resource.Path(), err) + } + } + } + } + case Directory: + if fi == nil { + if err := c.driver.Mkdir(fp, resource.Mode()); err != nil { + return err + } + } else if !fi.Mode().IsDir() { + return fmt.Errorf("%q should be a directory, but is not", resource.Path()) + } + + case SymLink: + var target string // only possibly set if target resource is a symlink + + if fi != nil { + if fi.Mode()&os.ModeSymlink != 0 { + target, err = c.driver.Readlink(fp) + if err != nil { + return err + } + } + } + + if target != r.Target() { + if fi != nil { + if err := c.driver.Remove(fp); err != nil { // RemoveAll in case of directory? + return err + } + } + + if err := c.driver.Symlink(r.Target(), fp); err != nil { + return err + } + } + + case Device: + if fi == nil { + if err := c.driver.Mknod(fp, resource.Mode(), int(r.Major()), int(r.Minor())); err != nil { + return err + } + } else if (fi.Mode() & os.ModeDevice) == 0 { + return fmt.Errorf("%q should be a device, but is not", resource.Path()) + } else { + major, minor, err := devices.DeviceInfo(fi) + if err != nil { + return err + } + if major != r.Major() || minor != r.Minor() { + if err := c.driver.Remove(fp); err != nil { + return err + } + + if err := c.driver.Mknod(fp, resource.Mode(), int(r.Major()), int(r.Minor())); err != nil { + return err + } + } + } + + case NamedPipe: + if fi == nil { + if err := c.driver.Mkfifo(fp, resource.Mode()); err != nil { + return err + } + } else if (fi.Mode() & os.ModeNamedPipe) == 0 { + return fmt.Errorf("%q should be a named pipe, but is not", resource.Path()) + } + } + + if h, isHardlinkable := resource.(Hardlinkable); isHardlinkable { + for _, path := range h.Paths() { + if path == resource.Path() { + continue + } + + lp, err := c.fullpath(path) + if err != nil { + return err + } + + if _, fi := c.driver.Lstat(lp); fi == nil { + c.driver.Remove(lp) + } + if err := c.driver.Link(fp, lp); err != nil { + return err + } + } + } + + // Update filemode if file was not created + if chmod { + if err := c.driver.Lchmod(fp, resource.Mode()); err != nil { + return err + } + } + + if err := c.driver.Lchown(fp, resource.UID(), resource.GID()); err != nil { + return err + } + + if xattrer, ok := resource.(XAttrer); ok { + // For xattrs, only ensure that we have those defined in the resource + // and their values are set. We can ignore other xattrs. In other words, + // we only set xattres defined by resource but never remove. + + if _, ok := resource.(SymLink); ok { + lxattrDriver, ok := c.driver.(driverpkg.LXAttrDriver) + if !ok { + return fmt.Errorf("unsupported symlink xattr for resource %q", resource.Path()) + } + if err := lxattrDriver.LSetxattr(fp, xattrer.XAttrs()); err != nil { + return err + } + } else { + xattrDriver, ok := c.driver.(driverpkg.XAttrDriver) + if !ok { + return fmt.Errorf("unsupported xattr for resource %q", resource.Path()) + } + if err := xattrDriver.Setxattr(fp, xattrer.XAttrs()); err != nil { + return err + } + } + } + + return nil +} + +// Walk provides a convenience function to call filepath.Walk correctly for +// the context. Otherwise identical to filepath.Walk, the path argument is +// corrected to be contained within the context. +func (c *context) Walk(fn filepath.WalkFunc) error { + root := c.root + fi, err := c.driver.Lstat(c.root) + if err == nil && fi.Mode()&os.ModeSymlink != 0 { + root, err = c.driver.Readlink(c.root) + if err != nil { + return err + } + } + return c.pathDriver.Walk(root, func(p string, fi os.FileInfo, err error) error { + contained, err := c.containWithRoot(p, root) + return fn(contained, fi, err) + }) +} + +// fullpath returns the system path for the resource, joined with the context +// root. The path p must be a part of the context. +func (c *context) fullpath(p string) (string, error) { + p = c.pathDriver.Join(c.root, p) + if !strings.HasPrefix(p, c.root) { + return "", fmt.Errorf("invalid context path") + } + + return p, nil +} + +// contain cleans and santizes the filesystem path p to be an absolute path, +// effectively relative to the context root. +func (c *context) contain(p string) (string, error) { + return c.containWithRoot(p, c.root) +} + +// containWithRoot cleans and santizes the filesystem path p to be an absolute path, +// effectively relative to the passed root. Extra care should be used when calling this +// instead of contain. This is needed for Walk, as if context root is a symlink, +// it must be evaluated prior to the Walk +func (c *context) containWithRoot(p string, root string) (string, error) { + sanitized, err := c.pathDriver.Rel(root, p) + if err != nil { + return "", err + } + + // ZOMBIES(stevvooe): In certain cases, we may want to remap these to a + // "containment error", so the caller can decide what to do. + return c.pathDriver.Join("/", c.pathDriver.Clean(sanitized)), nil +} + +// digest returns the digest of the file at path p, relative to the root. +func (c *context) digest(p string) (digest.Digest, error) { + f, err := c.driver.Open(c.pathDriver.Join(c.root, p)) + if err != nil { + return "", err + } + defer f.Close() + + return c.digester.Digest(f) +} + +// resolveXAttrs attempts to resolve the extended attributes for the resource +// at the path fp, which is the full path to the resource. If the resource +// cannot have xattrs, nil will be returned. +func (c *context) resolveXAttrs(fp string, fi os.FileInfo, base *resource) (map[string][]byte, error) { + if fi.Mode().IsRegular() || fi.Mode().IsDir() { + xattrDriver, ok := c.driver.(driverpkg.XAttrDriver) + if !ok { + log.Println("xattr extraction not supported") + return nil, ErrNotSupported + } + + return xattrDriver.Getxattr(fp) + } + + if fi.Mode()&os.ModeSymlink != 0 { + lxattrDriver, ok := c.driver.(driverpkg.LXAttrDriver) + if !ok { + log.Println("xattr extraction for symlinks not supported") + return nil, ErrNotSupported + } + + return lxattrDriver.LGetxattr(fp) + } + + return nil, nil +} diff --git a/components/engine/vendor/github.com/containerd/continuity/digests.go b/components/engine/vendor/github.com/containerd/continuity/digests.go new file mode 100644 index 00000000000..355b08039d1 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/digests.go @@ -0,0 +1,88 @@ +package continuity + +import ( + "fmt" + "io" + "sort" + + "github.com/opencontainers/go-digest" +) + +// Digester produces a digest for a given read stream +type Digester interface { + Digest(io.Reader) (digest.Digest, error) +} + +// ContentProvider produces a read stream for a given digest +type ContentProvider interface { + Reader(digest.Digest) (io.ReadCloser, error) +} + +type simpleDigester struct { + algorithm digest.Algorithm +} + +func (sd simpleDigester) Digest(r io.Reader) (digest.Digest, error) { + digester := sd.algorithm.Digester() + + if _, err := io.Copy(digester.Hash(), r); err != nil { + return "", err + } + + return digester.Digest(), nil +} + +// uniqifyDigests sorts and uniqifies the provided digest, ensuring that the +// digests are not repeated and no two digests with the same algorithm have +// different values. Because a stable sort is used, this has the effect of +// "zipping" digest collections from multiple resources. +func uniqifyDigests(digests ...digest.Digest) ([]digest.Digest, error) { + sort.Stable(digestSlice(digests)) // stable sort is important for the behavior here. + seen := map[digest.Digest]struct{}{} + algs := map[digest.Algorithm][]digest.Digest{} // detect different digests. + + var out []digest.Digest + // uniqify the digests + for _, d := range digests { + if _, ok := seen[d]; ok { + continue + } + + seen[d] = struct{}{} + algs[d.Algorithm()] = append(algs[d.Algorithm()], d) + + if len(algs[d.Algorithm()]) > 1 { + return nil, fmt.Errorf("conflicting digests for %v found", d.Algorithm()) + } + + out = append(out, d) + } + + return out, nil +} + +// digestsMatch compares the two sets of digests to see if they match. +func digestsMatch(as, bs []digest.Digest) bool { + all := append(as, bs...) + + uniqified, err := uniqifyDigests(all...) + if err != nil { + // the only error uniqifyDigests returns is when the digests disagree. + return false + } + + disjoint := len(as) + len(bs) + if len(uniqified) == disjoint { + // if these two sets have the same cardinality, we know both sides + // didn't share any digests. + return false + } + + return true +} + +type digestSlice []digest.Digest + +func (p digestSlice) Len() int { return len(p) } +func (p digestSlice) Less(i, j int) bool { return p[i] < p[j] } +func (p digestSlice) Swap(i, j int) { p[i], p[j] = p[j], p[i] } diff --git a/components/engine/vendor/github.com/containerd/continuity/driver/driver_unix.go b/components/engine/vendor/github.com/containerd/continuity/driver/driver_unix.go index 67493ade089..c7d4e6ba151 100644 --- a/components/engine/vendor/github.com/containerd/continuity/driver/driver_unix.go +++ b/components/engine/vendor/github.com/containerd/continuity/driver/driver_unix.go @@ -6,7 +6,6 @@ import ( "errors" "fmt" "os" - "path/filepath" "sort" "github.com/containerd/continuity/devices" @@ -26,18 +25,6 @@ func (d *driver) Mkfifo(path string, mode os.FileMode) error { return devices.Mknod(path, mode, 0, 0) } -// Lchmod changes the mode of an file not following symlinks. -func (d *driver) Lchmod(path string, mode os.FileMode) (err error) { - if !filepath.IsAbs(path) { - path, err = filepath.Abs(path) - if err != nil { - return - } - } - - return sysx.Fchmodat(0, path, uint32(mode), sysx.AtSymlinkNofollow) -} - // Getxattr returns all of the extended attributes for the file at path p. func (d *driver) Getxattr(p string) (map[string][]byte, error) { xattrs, err := sysx.Listxattr(p) diff --git a/components/engine/vendor/github.com/containerd/continuity/driver/lchmod_linux.go b/components/engine/vendor/github.com/containerd/continuity/driver/lchmod_linux.go new file mode 100644 index 00000000000..39ffe9cc322 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/driver/lchmod_linux.go @@ -0,0 +1,19 @@ +package driver + +import ( + "os" + + "golang.org/x/sys/unix" +) + +// Lchmod changes the mode of a file not following symlinks. +func (d *driver) Lchmod(path string, mode os.FileMode) error { + // On Linux, file mode is not supported for symlinks, + // and fchmodat() does not support AT_SYMLINK_NOFOLLOW, + // so symlinks need to be skipped entirely. + if st, err := os.Stat(path); err == nil && st.Mode()&os.ModeSymlink != 0 { + return nil + } + + return unix.Fchmodat(unix.AT_FDCWD, path, uint32(mode), 0) +} diff --git a/components/engine/vendor/github.com/containerd/continuity/driver/lchmod_unix.go b/components/engine/vendor/github.com/containerd/continuity/driver/lchmod_unix.go new file mode 100644 index 00000000000..1b539f78e39 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/driver/lchmod_unix.go @@ -0,0 +1,14 @@ +// +build darwin freebsd solaris + +package driver + +import ( + "os" + + "golang.org/x/sys/unix" +) + +// Lchmod changes the mode of a file not following symlinks. +func (d *driver) Lchmod(path string, mode os.FileMode) error { + return unix.Fchmodat(unix.AT_FDCWD, path, uint32(mode), unix.AT_SYMLINK_NOFOLLOW) +} diff --git a/components/engine/vendor/github.com/containerd/continuity/fs/du.go b/components/engine/vendor/github.com/containerd/continuity/fs/du.go index 26f53331547..f8fc9a99462 100644 --- a/components/engine/vendor/github.com/containerd/continuity/fs/du.go +++ b/components/engine/vendor/github.com/containerd/continuity/fs/du.go @@ -10,8 +10,8 @@ type Usage struct { // DiskUsage counts the number of inodes and disk usage for the resources under // path. -func DiskUsage(roots ...string) (Usage, error) { - return diskUsage(roots...) +func DiskUsage(ctx context.Context, roots ...string) (Usage, error) { + return diskUsage(ctx, roots...) } // DiffUsage counts the numbers of inodes and disk usage in the diff --git a/components/engine/vendor/github.com/containerd/continuity/fs/du_unix.go b/components/engine/vendor/github.com/containerd/continuity/fs/du_unix.go index fe3426d2783..9f6bc55fd9b 100644 --- a/components/engine/vendor/github.com/containerd/continuity/fs/du_unix.go +++ b/components/engine/vendor/github.com/containerd/continuity/fs/du_unix.go @@ -24,7 +24,7 @@ func newInode(stat *syscall.Stat_t) inode { } } -func diskUsage(roots ...string) (Usage, error) { +func diskUsage(ctx context.Context, roots ...string) (Usage, error) { var ( size int64 @@ -37,6 +37,12 @@ func diskUsage(roots ...string) (Usage, error) { return err } + select { + case <-ctx.Done(): + return ctx.Err() + default: + } + inoKey := newInode(fi.Sys().(*syscall.Stat_t)) if _, ok := inodes[inoKey]; !ok { inodes[inoKey] = struct{}{} diff --git a/components/engine/vendor/github.com/containerd/continuity/fs/du_windows.go b/components/engine/vendor/github.com/containerd/continuity/fs/du_windows.go index 3f852fc15ee..faa443fedac 100644 --- a/components/engine/vendor/github.com/containerd/continuity/fs/du_windows.go +++ b/components/engine/vendor/github.com/containerd/continuity/fs/du_windows.go @@ -8,7 +8,7 @@ import ( "path/filepath" ) -func diskUsage(roots ...string) (Usage, error) { +func diskUsage(ctx context.Context, roots ...string) (Usage, error) { var ( size int64 ) @@ -21,6 +21,12 @@ func diskUsage(roots ...string) (Usage, error) { return err } + select { + case <-ctx.Done(): + return ctx.Err() + default: + } + size += fi.Size() return nil }); err != nil { diff --git a/components/engine/vendor/github.com/containerd/continuity/groups_unix.go b/components/engine/vendor/github.com/containerd/continuity/groups_unix.go new file mode 100644 index 00000000000..e15c14ff89a --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/groups_unix.go @@ -0,0 +1,113 @@ +package continuity + +import ( + "bufio" + "fmt" + "io" + "os" + "strconv" + "strings" +) + +// TODO(stevvooe): This needs a lot of work before we can call it useful. + +type groupIndex struct { + byName map[string]*group + byGID map[int]*group +} + +func getGroupIndex() (*groupIndex, error) { + f, err := os.Open("/etc/group") + if err != nil { + return nil, err + } + defer f.Close() + + groups, err := parseGroups(f) + if err != nil { + return nil, err + } + + return newGroupIndex(groups), nil +} + +func newGroupIndex(groups []group) *groupIndex { + gi := &groupIndex{ + byName: make(map[string]*group), + byGID: make(map[int]*group), + } + + for i, group := range groups { + gi.byGID[group.gid] = &groups[i] + gi.byName[group.name] = &groups[i] + } + + return gi +} + +type group struct { + name string + gid int + members []string +} + +func getGroupName(gid int) (string, error) { + f, err := os.Open("/etc/group") + if err != nil { + return "", err + } + defer f.Close() + + groups, err := parseGroups(f) + if err != nil { + return "", err + } + + for _, group := range groups { + if group.gid == gid { + return group.name, nil + } + } + + return "", fmt.Errorf("no group for gid") +} + +// parseGroups parses an /etc/group file for group names, ids and membership. +// This is unix specific. +func parseGroups(rd io.Reader) ([]group, error) { + var groups []group + scanner := bufio.NewScanner(rd) + + for scanner.Scan() { + if strings.HasPrefix(scanner.Text(), "#") { + continue // skip comment + } + + parts := strings.SplitN(scanner.Text(), ":", 4) + + if len(parts) != 4 { + return nil, fmt.Errorf("bad entry: %q", scanner.Text()) + } + + name, _, sgid, smembers := parts[0], parts[1], parts[2], parts[3] + + gid, err := strconv.Atoi(sgid) + if err != nil { + return nil, fmt.Errorf("bad gid: %q", gid) + } + + members := strings.Split(smembers, ",") + + groups = append(groups, group{ + name: name, + gid: gid, + members: members, + }) + } + + if scanner.Err() != nil { + return nil, scanner.Err() + } + + return groups, nil +} diff --git a/components/engine/vendor/github.com/containerd/continuity/hardlinks.go b/components/engine/vendor/github.com/containerd/continuity/hardlinks.go new file mode 100644 index 00000000000..8b39bd0612a --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/hardlinks.go @@ -0,0 +1,57 @@ +package continuity + +import ( + "fmt" + "os" +) + +var ( + errNotAHardLink = fmt.Errorf("invalid hardlink") +) + +type hardlinkManager struct { + hardlinks map[hardlinkKey][]Resource +} + +func newHardlinkManager() *hardlinkManager { + return &hardlinkManager{ + hardlinks: map[hardlinkKey][]Resource{}, + } +} + +// Add attempts to add the resource to the hardlink manager. If the resource +// cannot be considered as a hardlink candidate, errNotAHardLink is returned. +func (hlm *hardlinkManager) Add(fi os.FileInfo, resource Resource) error { + if _, ok := resource.(Hardlinkable); !ok { + return errNotAHardLink + } + + key, err := newHardlinkKey(fi) + if err != nil { + return err + } + + hlm.hardlinks[key] = append(hlm.hardlinks[key], resource) + + return nil +} + +// Merge processes the current state of the hardlink manager and merges any +// shared nodes into hardlinked resources. +func (hlm *hardlinkManager) Merge() ([]Resource, error) { + var resources []Resource + for key, linked := range hlm.hardlinks { + if len(linked) < 1 { + return nil, fmt.Errorf("no hardlink entrys for dev, inode pair: %#v", key) + } + + merged, err := Merge(linked...) + if err != nil { + return nil, fmt.Errorf("error merging hardlink: %v", err) + } + + resources = append(resources, merged) + } + + return resources, nil +} diff --git a/components/engine/vendor/github.com/containerd/continuity/hardlinks_unix.go b/components/engine/vendor/github.com/containerd/continuity/hardlinks_unix.go new file mode 100644 index 00000000000..1d81a3f963e --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/hardlinks_unix.go @@ -0,0 +1,36 @@ +// +build linux darwin freebsd solaris + +package continuity + +import ( + "fmt" + "os" + "syscall" +) + +// hardlinkKey provides a tuple-key for managing hardlinks. This is system- +// specific. +type hardlinkKey struct { + dev uint64 + inode uint64 +} + +// newHardlinkKey returns a hardlink key for the provided file info. If the +// resource does not represent a possible hardlink, errNotAHardLink will be +// returned. +func newHardlinkKey(fi os.FileInfo) (hardlinkKey, error) { + sys, ok := fi.Sys().(*syscall.Stat_t) + if !ok { + return hardlinkKey{}, fmt.Errorf("cannot resolve (*syscall.Stat_t) from os.FileInfo") + } + + if sys.Nlink < 2 { + // NOTE(stevvooe): This is not always true for all filesystems. We + // should somehow detect this and provided a slow "polyfill" that + // leverages os.SameFile if we detect a filesystem where link counts + // is not really supported. + return hardlinkKey{}, errNotAHardLink + } + + return hardlinkKey{dev: uint64(sys.Dev), inode: uint64(sys.Ino)}, nil +} diff --git a/components/engine/vendor/github.com/containerd/continuity/hardlinks_windows.go b/components/engine/vendor/github.com/containerd/continuity/hardlinks_windows.go new file mode 100644 index 00000000000..be516c560a3 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/hardlinks_windows.go @@ -0,0 +1,12 @@ +package continuity + +import "os" + +type hardlinkKey struct{} + +func newHardlinkKey(fi os.FileInfo) (hardlinkKey, error) { + // NOTE(stevvooe): Obviously, this is not yet implemented. However, the + // makings of an implementation are available in src/os/types_windows.go. More + // investigation needs to be done to figure out exactly how to do this. + return hardlinkKey{}, errNotAHardLink +} diff --git a/components/engine/vendor/github.com/containerd/continuity/ioutils.go b/components/engine/vendor/github.com/containerd/continuity/ioutils.go new file mode 100644 index 00000000000..3a25bde39af --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/ioutils.go @@ -0,0 +1,47 @@ +package continuity + +import ( + "bytes" + "io" + "io/ioutil" + "os" + "path/filepath" +) + +// AtomicWriteFile atomically writes data to a file by first writing to a +// temp file and calling rename. +func AtomicWriteFile(filename string, data []byte, perm os.FileMode) error { + buf := bytes.NewBuffer(data) + return atomicWriteFile(filename, buf, int64(len(data)), perm) +} + +// atomicWriteFile writes data to a file by first writing to a temp +// file and calling rename. +func atomicWriteFile(filename string, r io.Reader, dataSize int64, perm os.FileMode) error { + f, err := ioutil.TempFile(filepath.Dir(filename), ".tmp-"+filepath.Base(filename)) + if err != nil { + return err + } + err = os.Chmod(f.Name(), perm) + if err != nil { + f.Close() + return err + } + n, err := io.Copy(f, r) + if err == nil && n < dataSize { + f.Close() + return io.ErrShortWrite + } + if err != nil { + f.Close() + return err + } + if err := f.Sync(); err != nil { + f.Close() + return err + } + if err := f.Close(); err != nil { + return err + } + return os.Rename(f.Name(), filename) +} diff --git a/components/engine/vendor/github.com/containerd/continuity/manifest.go b/components/engine/vendor/github.com/containerd/continuity/manifest.go new file mode 100644 index 00000000000..f704f048b84 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/manifest.go @@ -0,0 +1,144 @@ +package continuity + +import ( + "fmt" + "io" + "log" + "os" + "sort" + + pb "github.com/containerd/continuity/proto" + "github.com/golang/protobuf/proto" +) + +// Manifest provides the contents of a manifest. Users of this struct should +// not typically modify any fields directly. +type Manifest struct { + // Resources specifies all the resources for a manifest in order by path. + Resources []Resource +} + +func Unmarshal(p []byte) (*Manifest, error) { + var bm pb.Manifest + + if err := proto.Unmarshal(p, &bm); err != nil { + return nil, err + } + + var m Manifest + for _, b := range bm.Resource { + r, err := fromProto(b) + if err != nil { + return nil, err + } + + m.Resources = append(m.Resources, r) + } + + return &m, nil +} + +func Marshal(m *Manifest) ([]byte, error) { + var bm pb.Manifest + for _, resource := range m.Resources { + bm.Resource = append(bm.Resource, toProto(resource)) + } + + return proto.Marshal(&bm) +} + +func MarshalText(w io.Writer, m *Manifest) error { + var bm pb.Manifest + for _, resource := range m.Resources { + bm.Resource = append(bm.Resource, toProto(resource)) + } + + return proto.MarshalText(w, &bm) +} + +// BuildManifest creates the manifest for the given context +func BuildManifest(ctx Context) (*Manifest, error) { + resourcesByPath := map[string]Resource{} + hardlinks := newHardlinkManager() + + if err := ctx.Walk(func(p string, fi os.FileInfo, err error) error { + if err != nil { + return fmt.Errorf("error walking %s: %v", p, err) + } + + if p == string(os.PathSeparator) { + // skip root + return nil + } + + resource, err := ctx.Resource(p, fi) + if err != nil { + if err == ErrNotFound { + return nil + } + log.Printf("error getting resource %q: %v", p, err) + return err + } + + // add to the hardlink manager + if err := hardlinks.Add(fi, resource); err == nil { + // Resource has been accepted by hardlink manager so we don't add + // it to the resourcesByPath until we merge at the end. + return nil + } else if err != errNotAHardLink { + // handle any other case where we have a proper error. + return fmt.Errorf("adding hardlink %s: %v", p, err) + } + + resourcesByPath[p] = resource + + return nil + }); err != nil { + return nil, err + } + + // merge and post-process the hardlinks. + hardlinked, err := hardlinks.Merge() + if err != nil { + return nil, err + } + + for _, resource := range hardlinked { + resourcesByPath[resource.Path()] = resource + } + + var resources []Resource + for _, resource := range resourcesByPath { + resources = append(resources, resource) + } + + sort.Stable(ByPath(resources)) + + return &Manifest{ + Resources: resources, + }, nil +} + +// VerifyManifest verifies all the resources in a manifest +// against files from the given context. +func VerifyManifest(ctx Context, manifest *Manifest) error { + for _, resource := range manifest.Resources { + if err := ctx.Verify(resource); err != nil { + return err + } + } + + return nil +} + +// ApplyManifest applies on the resources in a manifest to +// the given context. +func ApplyManifest(ctx Context, manifest *Manifest) error { + for _, resource := range manifest.Resources { + if err := ctx.Apply(resource); err != nil { + return err + } + } + + return nil +} diff --git a/components/engine/vendor/github.com/containerd/continuity/proto/gen.go b/components/engine/vendor/github.com/containerd/continuity/proto/gen.go new file mode 100644 index 00000000000..8f26ff501f6 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/proto/gen.go @@ -0,0 +1,3 @@ +package proto + +//go:generate protoc --go_out=. manifest.proto diff --git a/components/engine/vendor/github.com/containerd/continuity/proto/manifest.pb.go b/components/engine/vendor/github.com/containerd/continuity/proto/manifest.pb.go new file mode 100644 index 00000000000..24317766257 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/proto/manifest.pb.go @@ -0,0 +1,181 @@ +// Code generated by protoc-gen-go. +// source: manifest.proto +// DO NOT EDIT! + +/* +Package proto is a generated protocol buffer package. + +It is generated from these files: + manifest.proto + +It has these top-level messages: + Manifest + Resource + XAttr + ADSEntry +*/ +package proto + +import proto1 "github.com/golang/protobuf/proto" +import fmt "fmt" +import math "math" + +// Reference imports to suppress errors if they are not otherwise used. +var _ = proto1.Marshal +var _ = fmt.Errorf +var _ = math.Inf + +// This is a compile-time assertion to ensure that this generated file +// is compatible with the proto package it is being compiled against. +// A compilation error at this line likely means your copy of the +// proto package needs to be updated. +const _ = proto1.ProtoPackageIsVersion2 // please upgrade the proto package + +// Manifest specifies the entries in a container bundle, keyed and sorted by +// path. +type Manifest struct { + Resource []*Resource `protobuf:"bytes,1,rep,name=resource" json:"resource,omitempty"` +} + +func (m *Manifest) Reset() { *m = Manifest{} } +func (m *Manifest) String() string { return proto1.CompactTextString(m) } +func (*Manifest) ProtoMessage() {} +func (*Manifest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} } + +func (m *Manifest) GetResource() []*Resource { + if m != nil { + return m.Resource + } + return nil +} + +type Resource struct { + // Path specifies the path from the bundle root. If more than one + // path is present, the entry may represent a hardlink, rather than using + // a link target. The path format is operating system specific. + Path []string `protobuf:"bytes,1,rep,name=path" json:"path,omitempty"` + // Uid specifies the user id for the resource. + Uid int64 `protobuf:"varint,2,opt,name=uid" json:"uid,omitempty"` + // Gid specifies the group id for the resource. + Gid int64 `protobuf:"varint,3,opt,name=gid" json:"gid,omitempty"` + // user and group are not currently used but their field numbers have been + // reserved for future use. As such, they are marked as deprecated. + User string `protobuf:"bytes,4,opt,name=user" json:"user,omitempty"` + Group string `protobuf:"bytes,5,opt,name=group" json:"group,omitempty"` + // Mode defines the file mode and permissions. We've used the same + // bit-packing from Go's os package, + // http://golang.org/pkg/os/#FileMode, since they've done the work of + // creating a cross-platform layout. + Mode uint32 `protobuf:"varint,6,opt,name=mode" json:"mode,omitempty"` + // Size specifies the size in bytes of the resource. This is only valid + // for regular files. + Size uint64 `protobuf:"varint,7,opt,name=size" json:"size,omitempty"` + // Digest specifies the content digest of the target file. Only valid for + // regular files. The strings are formatted in OCI style, i.e. :. + // For detailed information about the format, please refer to OCI Image Spec: + // https://github.com/opencontainers/image-spec/blob/master/descriptor.md#digests-and-verification + // The digests are sorted in lexical order and implementations may choose + // which algorithms they prefer. + Digest []string `protobuf:"bytes,8,rep,name=digest" json:"digest,omitempty"` + // Target defines the target of a hard or soft link. Absolute links start + // with a slash and specify the resource relative to the bundle root. + // Relative links do not start with a slash and are relative to the + // resource path. + Target string `protobuf:"bytes,9,opt,name=target" json:"target,omitempty"` + // Major specifies the major device number for character and block devices. + Major uint64 `protobuf:"varint,10,opt,name=major" json:"major,omitempty"` + // Minor specifies the minor device number for character and block devices. + Minor uint64 `protobuf:"varint,11,opt,name=minor" json:"minor,omitempty"` + // Xattr provides storage for extended attributes for the target resource. + Xattr []*XAttr `protobuf:"bytes,12,rep,name=xattr" json:"xattr,omitempty"` + // Ads stores one or more alternate data streams for the target resource. + Ads []*ADSEntry `protobuf:"bytes,13,rep,name=ads" json:"ads,omitempty"` +} + +func (m *Resource) Reset() { *m = Resource{} } +func (m *Resource) String() string { return proto1.CompactTextString(m) } +func (*Resource) ProtoMessage() {} +func (*Resource) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} } + +func (m *Resource) GetXattr() []*XAttr { + if m != nil { + return m.Xattr + } + return nil +} + +func (m *Resource) GetAds() []*ADSEntry { + if m != nil { + return m.Ads + } + return nil +} + +// XAttr encodes extended attributes for a resource. +type XAttr struct { + // Name specifies the attribute name. + Name string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"` + // Data specifies the associated data for the attribute. + Data []byte `protobuf:"bytes,2,opt,name=data,proto3" json:"data,omitempty"` +} + +func (m *XAttr) Reset() { *m = XAttr{} } +func (m *XAttr) String() string { return proto1.CompactTextString(m) } +func (*XAttr) ProtoMessage() {} +func (*XAttr) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} } + +// ADSEntry encodes information for a Windows Alternate Data Stream. +type ADSEntry struct { + // Name specifices the stream name. + Name string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"` + // Data specifies the stream data. + // See also the description about the digest below. + Data []byte `protobuf:"bytes,2,opt,name=data,proto3" json:"data,omitempty"` + // Digest is a CAS representation of the stream data. + // + // At least one of data or digest MUST be specified, and either one of them + // SHOULD be specified. + // + // How to access the actual data using the digest is implementation-specific, + // and implementations can choose not to implement digest. + // So, digest SHOULD be used only when the stream data is large. + Digest string `protobuf:"bytes,3,opt,name=digest" json:"digest,omitempty"` +} + +func (m *ADSEntry) Reset() { *m = ADSEntry{} } +func (m *ADSEntry) String() string { return proto1.CompactTextString(m) } +func (*ADSEntry) ProtoMessage() {} +func (*ADSEntry) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} } + +func init() { + proto1.RegisterType((*Manifest)(nil), "proto.Manifest") + proto1.RegisterType((*Resource)(nil), "proto.Resource") + proto1.RegisterType((*XAttr)(nil), "proto.XAttr") + proto1.RegisterType((*ADSEntry)(nil), "proto.ADSEntry") +} + +func init() { proto1.RegisterFile("manifest.proto", fileDescriptor0) } + +var fileDescriptor0 = []byte{ + // 317 bytes of a gzipped FileDescriptorProto + 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0x8c, 0x90, 0x4f, 0x4b, 0xf3, 0x40, + 0x10, 0xc6, 0x49, 0x93, 0xf4, 0x4d, 0xa7, 0xed, 0xab, 0x2c, 0x52, 0xe6, 0x18, 0x73, 0x0a, 0x08, + 0x15, 0xf4, 0xe0, 0xb9, 0xa2, 0x17, 0xc1, 0xcb, 0x7a, 0xf1, 0xba, 0xba, 0x6b, 0x5c, 0x21, 0xd9, + 0xb0, 0xd9, 0x80, 0xfa, 0xe5, 0xfc, 0x6a, 0x32, 0xb3, 0x69, 0xd1, 0x9b, 0xa7, 0x3c, 0xcf, 0x6f, + 0xfe, 0x64, 0xf6, 0x81, 0xff, 0xad, 0xea, 0xec, 0x8b, 0x19, 0xc2, 0xb6, 0xf7, 0x2e, 0x38, 0x91, + 0xf3, 0xa7, 0xba, 0x82, 0xe2, 0x7e, 0x2a, 0x88, 0x33, 0x28, 0xbc, 0x19, 0xdc, 0xe8, 0x9f, 0x0d, + 0x26, 0x65, 0x5a, 0x2f, 0x2f, 0x8e, 0x62, 0xf3, 0x56, 0x4e, 0x58, 0x1e, 0x1a, 0xaa, 0xaf, 0x19, + 0x14, 0x7b, 0x2c, 0x04, 0x64, 0xbd, 0x0a, 0xaf, 0x3c, 0xb5, 0x90, 0xac, 0xc5, 0x31, 0xa4, 0xa3, + 0xd5, 0x38, 0x2b, 0x93, 0x3a, 0x95, 0x24, 0x89, 0x34, 0x56, 0x63, 0x1a, 0x49, 0x63, 0xb5, 0xd8, + 0x40, 0x36, 0x0e, 0xc6, 0x63, 0x56, 0x26, 0xf5, 0xe2, 0x7a, 0x86, 0x89, 0x64, 0x2f, 0x10, 0xf2, + 0xc6, 0xbb, 0xb1, 0xc7, 0xfc, 0x50, 0x88, 0x80, 0xfe, 0xd4, 0x3a, 0x6d, 0x70, 0x5e, 0x26, 0xf5, + 0x5a, 0xb2, 0x26, 0x36, 0xd8, 0x4f, 0x83, 0xff, 0xca, 0xa4, 0xce, 0x24, 0x6b, 0xb1, 0x81, 0xb9, + 0xb6, 0x8d, 0x19, 0x02, 0x16, 0x7c, 0xd3, 0xe4, 0x88, 0x07, 0xe5, 0x1b, 0x13, 0x70, 0x41, 0xab, + 0xe5, 0xe4, 0xc4, 0x09, 0xe4, 0xad, 0x7a, 0x73, 0x1e, 0x81, 0x97, 0x44, 0xc3, 0xd4, 0x76, 0xce, + 0xe3, 0x72, 0xa2, 0x64, 0x44, 0x05, 0xf9, 0xbb, 0x0a, 0xc1, 0xe3, 0x8a, 0x43, 0x5a, 0x4d, 0x21, + 0x3d, 0xee, 0x42, 0xf0, 0x32, 0x96, 0xc4, 0x29, 0xa4, 0x4a, 0x0f, 0xb8, 0xfe, 0x15, 0xe3, 0xee, + 0xe6, 0xe1, 0xb6, 0x0b, 0xfe, 0x43, 0x52, 0xad, 0x3a, 0x87, 0x9c, 0x47, 0xe8, 0xfe, 0x4e, 0xb5, + 0x94, 0x39, 0x5d, 0xc4, 0x9a, 0x98, 0x56, 0x41, 0x71, 0x7c, 0x2b, 0xc9, 0xba, 0xba, 0x83, 0x62, + 0xbf, 0xe1, 0xaf, 0x33, 0x3f, 0x72, 0x48, 0xe3, 0x7b, 0xa3, 0x7b, 0x9a, 0xf3, 0x45, 0x97, 0xdf, + 0x01, 0x00, 0x00, 0xff, 0xff, 0xef, 0x27, 0x99, 0xf7, 0x17, 0x02, 0x00, 0x00, +} diff --git a/components/engine/vendor/github.com/containerd/continuity/proto/manifest.proto b/components/engine/vendor/github.com/containerd/continuity/proto/manifest.proto new file mode 100644 index 00000000000..66ef80f054e --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/proto/manifest.proto @@ -0,0 +1,97 @@ +syntax = "proto3"; + +package proto; + +// Manifest specifies the entries in a container bundle, keyed and sorted by +// path. +message Manifest { + repeated Resource resource = 1; +} + +message Resource { + // Path specifies the path from the bundle root. If more than one + // path is present, the entry may represent a hardlink, rather than using + // a link target. The path format is operating system specific. + repeated string path = 1; + + // NOTE(stevvooe): Need to define clear precedence for user/group/uid/gid precedence. + + // Uid specifies the user id for the resource. + int64 uid = 2; + + // Gid specifies the group id for the resource. + int64 gid = 3; + + // user and group are not currently used but their field numbers have been + // reserved for future use. As such, they are marked as deprecated. + string user = 4 [deprecated=true]; // "deprecated" stands for "reserved" here + string group = 5 [deprecated=true]; // "deprecated" stands for "reserved" here + + // Mode defines the file mode and permissions. We've used the same + // bit-packing from Go's os package, + // http://golang.org/pkg/os/#FileMode, since they've done the work of + // creating a cross-platform layout. + uint32 mode = 6; + + // NOTE(stevvooe): Beyond here, we start defining type specific fields. + + // Size specifies the size in bytes of the resource. This is only valid + // for regular files. + uint64 size = 7; + + // Digest specifies the content digest of the target file. Only valid for + // regular files. The strings are formatted in OCI style, i.e. :. + // For detailed information about the format, please refer to OCI Image Spec: + // https://github.com/opencontainers/image-spec/blob/master/descriptor.md#digests-and-verification + // The digests are sorted in lexical order and implementations may choose + // which algorithms they prefer. + repeated string digest = 8; + + // Target defines the target of a hard or soft link. Absolute links start + // with a slash and specify the resource relative to the bundle root. + // Relative links do not start with a slash and are relative to the + // resource path. + string target = 9; + + // Major specifies the major device number for character and block devices. + uint64 major = 10; + + // Minor specifies the minor device number for character and block devices. + uint64 minor = 11; + + // Xattr provides storage for extended attributes for the target resource. + repeated XAttr xattr = 12; + + // Ads stores one or more alternate data streams for the target resource. + repeated ADSEntry ads = 13; + +} + +// XAttr encodes extended attributes for a resource. +message XAttr { + // Name specifies the attribute name. + string name = 1; + + // Data specifies the associated data for the attribute. + bytes data = 2; +} + +// ADSEntry encodes information for a Windows Alternate Data Stream. +message ADSEntry { + // Name specifices the stream name. + string name = 1; + + // Data specifies the stream data. + // See also the description about the digest below. + bytes data = 2; + + // Digest is a CAS representation of the stream data. + // + // At least one of data or digest MUST be specified, and either one of them + // SHOULD be specified. + // + // How to access the actual data using the digest is implementation-specific, + // and implementations can choose not to implement digest. + // So, digest SHOULD be used only when the stream data is large. + string digest = 3; +} diff --git a/components/engine/vendor/github.com/containerd/continuity/resource.go b/components/engine/vendor/github.com/containerd/continuity/resource.go new file mode 100644 index 00000000000..3643effb342 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/resource.go @@ -0,0 +1,574 @@ +package continuity + +import ( + "errors" + "fmt" + "os" + "reflect" + "sort" + + pb "github.com/containerd/continuity/proto" + "github.com/opencontainers/go-digest" +) + +// TODO(stevvooe): A record based model, somewhat sketched out at the bottom +// of this file, will be more flexible. Another possibly is to tie the package +// interface directly to the protobuf type. This will have efficiency +// advantages at the cost coupling the nasty codegen types to the exported +// interface. + +type Resource interface { + // Path provides the primary resource path relative to the bundle root. In + // cases where resources have more than one path, such as with hard links, + // this will return the primary path, which is often just the first entry. + Path() string + + // Mode returns the + Mode() os.FileMode + + UID() int64 + GID() int64 +} + +// ByPath provides the canonical sort order for a set of resources. Use with +// sort.Stable for deterministic sorting. +type ByPath []Resource + +func (bp ByPath) Len() int { return len(bp) } +func (bp ByPath) Swap(i, j int) { bp[i], bp[j] = bp[j], bp[i] } +func (bp ByPath) Less(i, j int) bool { return bp[i].Path() < bp[j].Path() } + +type XAttrer interface { + XAttrs() map[string][]byte +} + +// Hardlinkable is an interface that a resource type satisfies if it can be a +// hardlink target. +type Hardlinkable interface { + // Paths returns all paths of the resource, including the primary path + // returned by Resource.Path. If len(Paths()) > 1, the resource is a hard + // link. + Paths() []string +} + +type RegularFile interface { + Resource + XAttrer + Hardlinkable + + Size() int64 + Digests() []digest.Digest +} + +// Merge two or more Resources into new file. Typically, this should be +// used to merge regular files as hardlinks. If the files are not identical, +// other than Paths and Digests, the merge will fail and an error will be +// returned. +func Merge(fs ...Resource) (Resource, error) { + if len(fs) < 1 { + return nil, fmt.Errorf("please provide a resource to merge") + } + + if len(fs) == 1 { + return fs[0], nil + } + + var paths []string + var digests []digest.Digest + bypath := map[string][]Resource{} + + // The attributes are all compared against the first to make sure they + // agree before adding to the above collections. If any of these don't + // correctly validate, the merge fails. + prototype := fs[0] + xattrs := make(map[string][]byte) + + // initialize xattrs for use below. All files must have same xattrs. + if prototypeXAttrer, ok := prototype.(XAttrer); ok { + for attr, value := range prototypeXAttrer.XAttrs() { + xattrs[attr] = value + } + } + + for _, f := range fs { + h, isHardlinkable := f.(Hardlinkable) + if !isHardlinkable { + return nil, errNotAHardLink + } + + if f.Mode() != prototype.Mode() { + return nil, fmt.Errorf("modes do not match: %v != %v", f.Mode(), prototype.Mode()) + } + + if f.UID() != prototype.UID() { + return nil, fmt.Errorf("uid does not match: %v != %v", f.UID(), prototype.UID()) + } + + if f.GID() != prototype.GID() { + return nil, fmt.Errorf("gid does not match: %v != %v", f.GID(), prototype.GID()) + } + + if xattrer, ok := f.(XAttrer); ok { + fxattrs := xattrer.XAttrs() + if !reflect.DeepEqual(fxattrs, xattrs) { + return nil, fmt.Errorf("resource %q xattrs do not match: %v != %v", f, fxattrs, xattrs) + } + } + + for _, p := range h.Paths() { + pfs, ok := bypath[p] + if !ok { + // ensure paths are unique by only appending on a new path. + paths = append(paths, p) + } + + bypath[p] = append(pfs, f) + } + + if regFile, isRegFile := f.(RegularFile); isRegFile { + prototypeRegFile, prototypeIsRegFile := prototype.(RegularFile) + if !prototypeIsRegFile { + return nil, errors.New("prototype is not a regular file") + } + + if regFile.Size() != prototypeRegFile.Size() { + return nil, fmt.Errorf("size does not match: %v != %v", regFile.Size(), prototypeRegFile.Size()) + } + + digests = append(digests, regFile.Digests()...) + } else if device, isDevice := f.(Device); isDevice { + prototypeDevice, prototypeIsDevice := prototype.(Device) + if !prototypeIsDevice { + return nil, errors.New("prototype is not a device") + } + + if device.Major() != prototypeDevice.Major() { + return nil, fmt.Errorf("major number does not match: %v != %v", device.Major(), prototypeDevice.Major()) + } + if device.Minor() != prototypeDevice.Minor() { + return nil, fmt.Errorf("minor number does not match: %v != %v", device.Minor(), prototypeDevice.Minor()) + } + } else if _, isNamedPipe := f.(NamedPipe); isNamedPipe { + _, prototypeIsNamedPipe := prototype.(NamedPipe) + if !prototypeIsNamedPipe { + return nil, errors.New("prototype is not a named pipe") + } + } else { + return nil, errNotAHardLink + } + } + + sort.Stable(sort.StringSlice(paths)) + + // Choose a "canonical" file. Really, it is just the first file to sort + // against. We also effectively select the very first digest as the + // "canonical" one for this file. + first := bypath[paths[0]][0] + + resource := resource{ + paths: paths, + mode: first.Mode(), + uid: first.UID(), + gid: first.GID(), + xattrs: xattrs, + } + + switch typedF := first.(type) { + case RegularFile: + var err error + digests, err = uniqifyDigests(digests...) + if err != nil { + return nil, err + } + + return ®ularFile{ + resource: resource, + size: typedF.Size(), + digests: digests, + }, nil + case Device: + return &device{ + resource: resource, + major: typedF.Major(), + minor: typedF.Minor(), + }, nil + + case NamedPipe: + return &namedPipe{ + resource: resource, + }, nil + + default: + return nil, errNotAHardLink + } +} + +type Directory interface { + Resource + XAttrer + + // Directory is a no-op method to identify directory objects by interface. + Directory() +} + +type SymLink interface { + Resource + + // Target returns the target of the symlink contained in the . + Target() string +} + +type NamedPipe interface { + Resource + Hardlinkable + XAttrer + + // Pipe is a no-op method to allow consistent resolution of NamedPipe + // interface. + Pipe() +} + +type Device interface { + Resource + Hardlinkable + XAttrer + + Major() uint64 + Minor() uint64 +} + +type resource struct { + paths []string + mode os.FileMode + uid, gid int64 + xattrs map[string][]byte +} + +var _ Resource = &resource{} + +func (r *resource) Path() string { + if len(r.paths) < 1 { + return "" + } + + return r.paths[0] +} + +func (r *resource) Mode() os.FileMode { + return r.mode +} + +func (r *resource) UID() int64 { + return r.uid +} + +func (r *resource) GID() int64 { + return r.gid +} + +type regularFile struct { + resource + size int64 + digests []digest.Digest +} + +var _ RegularFile = ®ularFile{} + +// newRegularFile returns the RegularFile, using the populated base resource +// and one or more digests of the content. +func newRegularFile(base resource, paths []string, size int64, dgsts ...digest.Digest) (RegularFile, error) { + if !base.Mode().IsRegular() { + return nil, fmt.Errorf("not a regular file") + } + + base.paths = make([]string, len(paths)) + copy(base.paths, paths) + + // make our own copy of digests + ds := make([]digest.Digest, len(dgsts)) + copy(ds, dgsts) + + return ®ularFile{ + resource: base, + size: size, + digests: ds, + }, nil +} + +func (rf *regularFile) Paths() []string { + paths := make([]string, len(rf.paths)) + copy(paths, rf.paths) + return paths +} + +func (rf *regularFile) Size() int64 { + return rf.size +} + +func (rf *regularFile) Digests() []digest.Digest { + digests := make([]digest.Digest, len(rf.digests)) + copy(digests, rf.digests) + return digests +} + +func (rf *regularFile) XAttrs() map[string][]byte { + xattrs := make(map[string][]byte, len(rf.xattrs)) + + for attr, value := range rf.xattrs { + xattrs[attr] = append(xattrs[attr], value...) + } + + return xattrs +} + +type directory struct { + resource +} + +var _ Directory = &directory{} + +func newDirectory(base resource) (Directory, error) { + if !base.Mode().IsDir() { + return nil, fmt.Errorf("not a directory") + } + + return &directory{ + resource: base, + }, nil +} + +func (d *directory) Directory() {} + +func (d *directory) XAttrs() map[string][]byte { + xattrs := make(map[string][]byte, len(d.xattrs)) + + for attr, value := range d.xattrs { + xattrs[attr] = append(xattrs[attr], value...) + } + + return xattrs +} + +type symLink struct { + resource + target string +} + +var _ SymLink = &symLink{} + +func newSymLink(base resource, target string) (SymLink, error) { + if base.Mode()&os.ModeSymlink == 0 { + return nil, fmt.Errorf("not a symlink") + } + + return &symLink{ + resource: base, + target: target, + }, nil +} + +func (l *symLink) Target() string { + return l.target +} + +type namedPipe struct { + resource +} + +var _ NamedPipe = &namedPipe{} + +func newNamedPipe(base resource, paths []string) (NamedPipe, error) { + if base.Mode()&os.ModeNamedPipe == 0 { + return nil, fmt.Errorf("not a namedpipe") + } + + base.paths = make([]string, len(paths)) + copy(base.paths, paths) + + return &namedPipe{ + resource: base, + }, nil +} + +func (np *namedPipe) Pipe() {} + +func (np *namedPipe) Paths() []string { + paths := make([]string, len(np.paths)) + copy(paths, np.paths) + return paths +} + +func (np *namedPipe) XAttrs() map[string][]byte { + xattrs := make(map[string][]byte, len(np.xattrs)) + + for attr, value := range np.xattrs { + xattrs[attr] = append(xattrs[attr], value...) + } + + return xattrs +} + +type device struct { + resource + major, minor uint64 +} + +var _ Device = &device{} + +func newDevice(base resource, paths []string, major, minor uint64) (Device, error) { + if base.Mode()&os.ModeDevice == 0 { + return nil, fmt.Errorf("not a device") + } + + base.paths = make([]string, len(paths)) + copy(base.paths, paths) + + return &device{ + resource: base, + major: major, + minor: minor, + }, nil +} + +func (d *device) Paths() []string { + paths := make([]string, len(d.paths)) + copy(paths, d.paths) + return paths +} + +func (d *device) XAttrs() map[string][]byte { + xattrs := make(map[string][]byte, len(d.xattrs)) + + for attr, value := range d.xattrs { + xattrs[attr] = append(xattrs[attr], value...) + } + + return xattrs +} + +func (d device) Major() uint64 { + return d.major +} + +func (d device) Minor() uint64 { + return d.minor +} + +// toProto converts a resource to a protobuf record. We'd like to push this +// the individual types but we want to keep this all together during +// prototyping. +func toProto(resource Resource) *pb.Resource { + b := &pb.Resource{ + Path: []string{resource.Path()}, + Mode: uint32(resource.Mode()), + Uid: resource.UID(), + Gid: resource.GID(), + } + + if xattrer, ok := resource.(XAttrer); ok { + // Sorts the XAttrs by name for consistent ordering. + keys := []string{} + xattrs := xattrer.XAttrs() + for k := range xattrs { + keys = append(keys, k) + } + sort.Strings(keys) + + for _, k := range keys { + b.Xattr = append(b.Xattr, &pb.XAttr{Name: k, Data: xattrs[k]}) + } + } + + switch r := resource.(type) { + case RegularFile: + b.Path = r.Paths() + b.Size = uint64(r.Size()) + + for _, dgst := range r.Digests() { + b.Digest = append(b.Digest, dgst.String()) + } + case SymLink: + b.Target = r.Target() + case Device: + b.Major, b.Minor = r.Major(), r.Minor() + b.Path = r.Paths() + case NamedPipe: + b.Path = r.Paths() + } + + // enforce a few stability guarantees that may not be provided by the + // resource implementation. + sort.Strings(b.Path) + + return b +} + +// fromProto converts from a protobuf Resource to a Resource interface. +func fromProto(b *pb.Resource) (Resource, error) { + base := &resource{ + paths: b.Path, + mode: os.FileMode(b.Mode), + uid: b.Uid, + gid: b.Gid, + } + + base.xattrs = make(map[string][]byte, len(b.Xattr)) + + for _, attr := range b.Xattr { + base.xattrs[attr.Name] = attr.Data + } + + switch { + case base.Mode().IsRegular(): + dgsts := make([]digest.Digest, len(b.Digest)) + for i, dgst := range b.Digest { + // TODO(stevvooe): Should we be validating at this point? + dgsts[i] = digest.Digest(dgst) + } + + return newRegularFile(*base, b.Path, int64(b.Size), dgsts...) + case base.Mode().IsDir(): + return newDirectory(*base) + case base.Mode()&os.ModeSymlink != 0: + return newSymLink(*base, b.Target) + case base.Mode()&os.ModeNamedPipe != 0: + return newNamedPipe(*base, b.Path) + case base.Mode()&os.ModeDevice != 0: + return newDevice(*base, b.Path, b.Major, b.Minor) + } + + return nil, fmt.Errorf("unknown resource record (%#v): %s", b, base.Mode()) +} + +// NOTE(stevvooe): An alternative model that supports inline declaration. +// Convenient for unit testing where inline declarations may be desirable but +// creates an awkward API for the standard use case. + +// type ResourceKind int + +// const ( +// ResourceRegularFile = iota + 1 +// ResourceDirectory +// ResourceSymLink +// Resource +// ) + +// type Resource struct { +// Kind ResourceKind +// Paths []string +// Mode os.FileMode +// UID string +// GID string +// Size int64 +// Digests []digest.Digest +// Target string +// Major, Minor int +// XAttrs map[string][]byte +// } + +// type RegularFile struct { +// Paths []string +// Size int64 +// Digests []digest.Digest +// Perm os.FileMode // os.ModePerm + sticky, setuid, setgid +// } diff --git a/components/engine/vendor/github.com/containerd/continuity/resource_unix.go b/components/engine/vendor/github.com/containerd/continuity/resource_unix.go new file mode 100644 index 00000000000..4144643e02b --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/resource_unix.go @@ -0,0 +1,37 @@ +// +build linux darwin freebsd solaris + +package continuity + +import ( + "fmt" + "os" + "syscall" +) + +// newBaseResource returns a *resource, populated with data from p and fi, +// where p will be populated directly. +func newBaseResource(p string, fi os.FileInfo) (*resource, error) { + // TODO(stevvooe): This need to be resolved for the container's root, + // where here we are really getting the host OS's value. We need to allow + // this be passed in and fixed up to make these uid/gid mappings portable. + // Either this can be part of the driver or we can achieve it through some + // other mechanism. + sys, ok := fi.Sys().(*syscall.Stat_t) + if !ok { + // TODO(stevvooe): This may not be a hard error for all platforms. We + // may want to move this to the driver. + return nil, fmt.Errorf("unable to resolve syscall.Stat_t from (os.FileInfo).Sys(): %#v", fi) + } + + return &resource{ + paths: []string{p}, + mode: fi.Mode(), + + uid: int64(sys.Uid), + gid: int64(sys.Gid), + + // NOTE(stevvooe): Population of shared xattrs field is deferred to + // the resource types that populate it. Since they are a property of + // the context, they must set there. + }, nil +} diff --git a/components/engine/vendor/github.com/containerd/continuity/resource_windows.go b/components/engine/vendor/github.com/containerd/continuity/resource_windows.go new file mode 100644 index 00000000000..7b44414ac5a --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/resource_windows.go @@ -0,0 +1,12 @@ +package continuity + +import "os" + +// newBaseResource returns a *resource, populated with data from p and fi, +// where p will be populated directly. +func newBaseResource(p string, fi os.FileInfo) (*resource, error) { + return &resource{ + paths: []string{p}, + mode: fi.Mode(), + }, nil +} diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/README.md b/components/engine/vendor/github.com/containerd/continuity/sysx/README.md new file mode 100644 index 00000000000..ad7aee53316 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/continuity/sysx/README.md @@ -0,0 +1,3 @@ +This package is for internal use only. It is intended to only have +temporary changes before they are upstreamed to golang.org/x/sys/ +(a.k.a. https://github.com/golang/sys). diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/asm.s b/components/engine/vendor/github.com/containerd/continuity/sysx/asm.s deleted file mode 100644 index 8ed2fdb94b1..00000000000 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/asm.s +++ /dev/null @@ -1,10 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build !gccgo - -#include "textflag.h" - -TEXT ·use(SB),NOSPLIT,$0 - RET diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_darwin.go b/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_darwin.go deleted file mode 100644 index e3ae2b7bbf4..00000000000 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_darwin.go +++ /dev/null @@ -1,18 +0,0 @@ -package sysx - -const ( - // AtSymlinkNoFollow defined from AT_SYMLINK_NOFOLLOW in - AtSymlinkNofollow = 0x20 -) - -const ( - - // SYS_FCHMODAT defined from golang.org/sys/unix - SYS_FCHMODAT = 467 -) - -// These functions will be generated by generate.sh -// $ GOOS=darwin GOARCH=386 ./generate.sh chmod -// $ GOOS=darwin GOARCH=amd64 ./generate.sh chmod - -//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_darwin_386.go b/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_darwin_386.go deleted file mode 100644 index 5a8cf5b57db..00000000000 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_darwin_386.go +++ /dev/null @@ -1,25 +0,0 @@ -// mksyscall.pl -l32 chmod_darwin.go -// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT - -package sysx - -import ( - "syscall" - "unsafe" -) - -// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT - -func Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) { - var _p0 *byte - _p0, err = syscall.BytePtrFromString(path) - if err != nil { - return - } - _, _, e1 := syscall.Syscall6(SYS_FCHMODAT, uintptr(dirfd), uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(flags), 0, 0) - use(unsafe.Pointer(_p0)) - if e1 != 0 { - err = errnoErr(e1) - } - return -} diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_darwin_amd64.go b/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_darwin_amd64.go deleted file mode 100644 index 3287d1d5799..00000000000 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_darwin_amd64.go +++ /dev/null @@ -1,25 +0,0 @@ -// mksyscall.pl chmod_darwin.go -// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT - -package sysx - -import ( - "syscall" - "unsafe" -) - -// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT - -func Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) { - var _p0 *byte - _p0, err = syscall.BytePtrFromString(path) - if err != nil { - return - } - _, _, e1 := syscall.Syscall6(SYS_FCHMODAT, uintptr(dirfd), uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(flags), 0, 0) - use(unsafe.Pointer(_p0)) - if e1 != 0 { - err = errnoErr(e1) - } - return -} diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_freebsd.go b/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_freebsd.go deleted file mode 100644 index b64a708be1b..00000000000 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_freebsd.go +++ /dev/null @@ -1,17 +0,0 @@ -package sysx - -const ( - // AtSymlinkNoFollow defined from AT_SYMLINK_NOFOLLOW in - AtSymlinkNofollow = 0x200 -) - -const ( - - // SYS_FCHMODAT defined from golang.org/sys/unix - SYS_FCHMODAT = 490 -) - -// These functions will be generated by generate.sh -// $ GOOS=freebsd GOARCH=amd64 ./generate.sh chmod - -//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_freebsd_amd64.go b/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_freebsd_amd64.go deleted file mode 100644 index 5a271abb1e7..00000000000 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_freebsd_amd64.go +++ /dev/null @@ -1,25 +0,0 @@ -// mksyscall.pl chmod_freebsd.go -// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT - -package sysx - -import ( - "syscall" - "unsafe" -) - -// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT - -func Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) { - var _p0 *byte - _p0, err = syscall.BytePtrFromString(path) - if err != nil { - return - } - _, _, e1 := syscall.Syscall6(SYS_FCHMODAT, uintptr(dirfd), uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(flags), 0, 0) - use(unsafe.Pointer(_p0)) - if e1 != 0 { - err = errnoErr(e1) - } - return -} diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_linux.go b/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_linux.go deleted file mode 100644 index 89df6d38ef1..00000000000 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_linux.go +++ /dev/null @@ -1,12 +0,0 @@ -package sysx - -import "syscall" - -const ( - // AtSymlinkNoFollow defined from AT_SYMLINK_NOFOLLOW in /usr/include/linux/fcntl.h - AtSymlinkNofollow = 0x100 -) - -func Fchmodat(dirfd int, path string, mode uint32, flags int) error { - return syscall.Fchmodat(dirfd, path, mode, flags) -} diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_solaris.go b/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_solaris.go deleted file mode 100644 index 3ba6e5edc8a..00000000000 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/chmod_solaris.go +++ /dev/null @@ -1,11 +0,0 @@ -package sysx - -import "golang.org/x/sys/unix" - -const ( - AtSymlinkNofollow = unix.AT_SYMLINK_NOFOLLOW -) - -func Fchmodat(dirfd int, path string, mode uint32, flags int) error { - return unix.Fchmodat(dirfd, path, mode, flags) -} diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/sys.go b/components/engine/vendor/github.com/containerd/continuity/sysx/sys.go deleted file mode 100644 index 0bb16762838..00000000000 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/sys.go +++ /dev/null @@ -1,37 +0,0 @@ -package sysx - -import ( - "syscall" - "unsafe" -) - -var _zero uintptr - -// use is a no-op, but the compiler cannot see that it is. -// Calling use(p) ensures that p is kept live until that point. -//go:noescape -func use(p unsafe.Pointer) - -// Do the interface allocations only once for common -// Errno values. -var ( - errEAGAIN error = syscall.EAGAIN - errEINVAL error = syscall.EINVAL - errENOENT error = syscall.ENOENT -) - -// errnoErr returns common boxed Errno values, to prevent -// allocations at runtime. -func errnoErr(e syscall.Errno) error { - switch e { - case 0: - return nil - case syscall.EAGAIN: - return errEAGAIN - case syscall.EINVAL: - return errEINVAL - case syscall.ENOENT: - return errENOENT - } - return e -} diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr.go b/components/engine/vendor/github.com/containerd/continuity/sysx/xattr.go index 20937c2d4d9..a59efee9ae7 100644 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr.go +++ b/components/engine/vendor/github.com/containerd/continuity/sysx/xattr.go @@ -1,14 +1,56 @@ +// +build linux darwin + package sysx import ( "bytes" - "fmt" "syscall" + + "golang.org/x/sys/unix" ) -const defaultXattrBufferSize = 5 +// Listxattr calls syscall listxattr and reads all content +// and returns a string array +func Listxattr(path string) ([]string, error) { + return listxattrAll(path, unix.Listxattr) +} + +// Removexattr calls syscall removexattr +func Removexattr(path string, attr string) (err error) { + return unix.Removexattr(path, attr) +} + +// Setxattr calls syscall setxattr +func Setxattr(path string, attr string, data []byte, flags int) (err error) { + return unix.Setxattr(path, attr, data, flags) +} + +// Getxattr calls syscall getxattr +func Getxattr(path, attr string) ([]byte, error) { + return getxattrAll(path, attr, unix.Getxattr) +} -var ErrNotSupported = fmt.Errorf("not supported") +// LListxattr lists xattrs, not following symlinks +func LListxattr(path string) ([]string, error) { + return listxattrAll(path, unix.Llistxattr) +} + +// LRemovexattr removes an xattr, not following symlinks +func LRemovexattr(path string, attr string) (err error) { + return unix.Lremovexattr(path, attr) +} + +// LSetxattr sets an xattr, not following symlinks +func LSetxattr(path string, attr string, data []byte, flags int) (err error) { + return unix.Lsetxattr(path, attr, data, flags) +} + +// LGetxattr gets an xattr, not following symlinks +func LGetxattr(path, attr string) ([]byte, error) { + return getxattrAll(path, attr, unix.Lgetxattr) +} + +const defaultXattrBufferSize = 5 type listxattrFunc func(path string, dest []byte) (int, error) diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_darwin.go b/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_darwin.go deleted file mode 100644 index 1164a7d11c1..00000000000 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_darwin.go +++ /dev/null @@ -1,71 +0,0 @@ -package sysx - -// These functions will be generated by generate.sh -// $ GOOS=darwin GOARCH=386 ./generate.sh xattr -// $ GOOS=darwin GOARCH=amd64 ./generate.sh xattr - -//sys getxattr(path string, attr string, dest []byte, pos int, options int) (sz int, err error) -//sys setxattr(path string, attr string, data []byte, flags int) (err error) -//sys removexattr(path string, attr string, options int) (err error) -//sys listxattr(path string, dest []byte, options int) (sz int, err error) -//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) - -const ( - xattrNoFollow = 0x01 -) - -func listxattrFollow(path string, dest []byte) (sz int, err error) { - return listxattr(path, dest, 0) -} - -// Listxattr calls syscall getxattr -func Listxattr(path string) ([]string, error) { - return listxattrAll(path, listxattrFollow) -} - -// Removexattr calls syscall getxattr -func Removexattr(path string, attr string) (err error) { - return removexattr(path, attr, 0) -} - -// Setxattr calls syscall setxattr -func Setxattr(path string, attr string, data []byte, flags int) (err error) { - return setxattr(path, attr, data, flags) -} - -func getxattrFollow(path, attr string, dest []byte) (sz int, err error) { - return getxattr(path, attr, dest, 0, 0) -} - -// Getxattr calls syscall getxattr -func Getxattr(path, attr string) ([]byte, error) { - return getxattrAll(path, attr, getxattrFollow) -} - -func listxattrNoFollow(path string, dest []byte) (sz int, err error) { - return listxattr(path, dest, xattrNoFollow) -} - -// LListxattr calls syscall listxattr with XATTR_NOFOLLOW -func LListxattr(path string) ([]string, error) { - return listxattrAll(path, listxattrNoFollow) -} - -// LRemovexattr calls syscall removexattr with XATTR_NOFOLLOW -func LRemovexattr(path string, attr string) (err error) { - return removexattr(path, attr, xattrNoFollow) -} - -// Setxattr calls syscall setxattr with XATTR_NOFOLLOW -func LSetxattr(path string, attr string, data []byte, flags int) (err error) { - return setxattr(path, attr, data, flags|xattrNoFollow) -} - -func getxattrNoFollow(path, attr string, dest []byte) (sz int, err error) { - return getxattr(path, attr, dest, 0, xattrNoFollow) -} - -// LGetxattr calls syscall getxattr with XATTR_NOFOLLOW -func LGetxattr(path, attr string) ([]byte, error) { - return getxattrAll(path, attr, getxattrNoFollow) -} diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_darwin_386.go b/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_darwin_386.go deleted file mode 100644 index aa896b57fc4..00000000000 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_darwin_386.go +++ /dev/null @@ -1,111 +0,0 @@ -// mksyscall.pl -l32 xattr_darwin.go -// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT - -package sysx - -import ( - "syscall" - "unsafe" -) - -// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT - -func getxattr(path string, attr string, dest []byte, pos int, options int) (sz int, err error) { - var _p0 *byte - _p0, err = syscall.BytePtrFromString(path) - if err != nil { - return - } - var _p1 *byte - _p1, err = syscall.BytePtrFromString(attr) - if err != nil { - return - } - var _p2 unsafe.Pointer - if len(dest) > 0 { - _p2 = unsafe.Pointer(&dest[0]) - } else { - _p2 = unsafe.Pointer(&_zero) - } - r0, _, e1 := syscall.Syscall6(syscall.SYS_GETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(_p2), uintptr(len(dest)), uintptr(pos), uintptr(options)) - use(unsafe.Pointer(_p0)) - use(unsafe.Pointer(_p1)) - sz = int(r0) - if e1 != 0 { - err = errnoErr(e1) - } - return -} - -// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT - -func setxattr(path string, attr string, data []byte, flags int) (err error) { - var _p0 *byte - _p0, err = syscall.BytePtrFromString(path) - if err != nil { - return - } - var _p1 *byte - _p1, err = syscall.BytePtrFromString(attr) - if err != nil { - return - } - var _p2 unsafe.Pointer - if len(data) > 0 { - _p2 = unsafe.Pointer(&data[0]) - } else { - _p2 = unsafe.Pointer(&_zero) - } - _, _, e1 := syscall.Syscall6(syscall.SYS_SETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(_p2), uintptr(len(data)), uintptr(flags), 0) - use(unsafe.Pointer(_p0)) - use(unsafe.Pointer(_p1)) - if e1 != 0 { - err = errnoErr(e1) - } - return -} - -// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT - -func removexattr(path string, attr string, options int) (err error) { - var _p0 *byte - _p0, err = syscall.BytePtrFromString(path) - if err != nil { - return - } - var _p1 *byte - _p1, err = syscall.BytePtrFromString(attr) - if err != nil { - return - } - _, _, e1 := syscall.Syscall(syscall.SYS_REMOVEXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(options)) - use(unsafe.Pointer(_p0)) - use(unsafe.Pointer(_p1)) - if e1 != 0 { - err = errnoErr(e1) - } - return -} - -// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT - -func listxattr(path string, dest []byte, options int) (sz int, err error) { - var _p0 *byte - _p0, err = syscall.BytePtrFromString(path) - if err != nil { - return - } - var _p1 unsafe.Pointer - if len(dest) > 0 { - _p1 = unsafe.Pointer(&dest[0]) - } else { - _p1 = unsafe.Pointer(&_zero) - } - r0, _, e1 := syscall.Syscall6(syscall.SYS_LISTXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(dest)), uintptr(options), 0, 0) - use(unsafe.Pointer(_p0)) - sz = int(r0) - if e1 != 0 { - err = errnoErr(e1) - } - return -} diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_darwin_amd64.go b/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_darwin_amd64.go deleted file mode 100644 index 6ff27e27034..00000000000 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_darwin_amd64.go +++ /dev/null @@ -1,111 +0,0 @@ -// mksyscall.pl xattr_darwin.go -// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT - -package sysx - -import ( - "syscall" - "unsafe" -) - -// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT - -func getxattr(path string, attr string, dest []byte, pos int, options int) (sz int, err error) { - var _p0 *byte - _p0, err = syscall.BytePtrFromString(path) - if err != nil { - return - } - var _p1 *byte - _p1, err = syscall.BytePtrFromString(attr) - if err != nil { - return - } - var _p2 unsafe.Pointer - if len(dest) > 0 { - _p2 = unsafe.Pointer(&dest[0]) - } else { - _p2 = unsafe.Pointer(&_zero) - } - r0, _, e1 := syscall.Syscall6(syscall.SYS_GETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(_p2), uintptr(len(dest)), uintptr(pos), uintptr(options)) - use(unsafe.Pointer(_p0)) - use(unsafe.Pointer(_p1)) - sz = int(r0) - if e1 != 0 { - err = errnoErr(e1) - } - return -} - -// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT - -func setxattr(path string, attr string, data []byte, flags int) (err error) { - var _p0 *byte - _p0, err = syscall.BytePtrFromString(path) - if err != nil { - return - } - var _p1 *byte - _p1, err = syscall.BytePtrFromString(attr) - if err != nil { - return - } - var _p2 unsafe.Pointer - if len(data) > 0 { - _p2 = unsafe.Pointer(&data[0]) - } else { - _p2 = unsafe.Pointer(&_zero) - } - _, _, e1 := syscall.Syscall6(syscall.SYS_SETXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(_p2), uintptr(len(data)), uintptr(flags), 0) - use(unsafe.Pointer(_p0)) - use(unsafe.Pointer(_p1)) - if e1 != 0 { - err = errnoErr(e1) - } - return -} - -// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT - -func removexattr(path string, attr string, options int) (err error) { - var _p0 *byte - _p0, err = syscall.BytePtrFromString(path) - if err != nil { - return - } - var _p1 *byte - _p1, err = syscall.BytePtrFromString(attr) - if err != nil { - return - } - _, _, e1 := syscall.Syscall(syscall.SYS_REMOVEXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(options)) - use(unsafe.Pointer(_p0)) - use(unsafe.Pointer(_p1)) - if e1 != 0 { - err = errnoErr(e1) - } - return -} - -// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT - -func listxattr(path string, dest []byte, options int) (sz int, err error) { - var _p0 *byte - _p0, err = syscall.BytePtrFromString(path) - if err != nil { - return - } - var _p1 unsafe.Pointer - if len(dest) > 0 { - _p1 = unsafe.Pointer(&dest[0]) - } else { - _p1 = unsafe.Pointer(&_zero) - } - r0, _, e1 := syscall.Syscall6(syscall.SYS_LISTXATTR, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(dest)), uintptr(options), 0, 0) - use(unsafe.Pointer(_p0)) - sz = int(r0) - if e1 != 0 { - err = errnoErr(e1) - } - return -} diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_freebsd.go b/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_freebsd.go deleted file mode 100644 index e8017d317f3..00000000000 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_freebsd.go +++ /dev/null @@ -1,12 +0,0 @@ -package sysx - -import ( - "errors" -) - -// Initial stub version for FreeBSD. FreeBSD has a different -// syscall API from Darwin and Linux for extended attributes; -// it is also not widely used. It is not exposed at all by the -// Go syscall package, so we need to implement directly eventually. - -var unsupported = errors.New("extended attributes unsupported on FreeBSD") diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_linux.go b/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_linux.go deleted file mode 100644 index 311b896d9e3..00000000000 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_linux.go +++ /dev/null @@ -1,44 +0,0 @@ -package sysx - -import "golang.org/x/sys/unix" - -// Listxattr calls syscall listxattr and reads all content -// and returns a string array -func Listxattr(path string) ([]string, error) { - return listxattrAll(path, unix.Listxattr) -} - -// Removexattr calls syscall removexattr -func Removexattr(path string, attr string) (err error) { - return unix.Removexattr(path, attr) -} - -// Setxattr calls syscall setxattr -func Setxattr(path string, attr string, data []byte, flags int) (err error) { - return unix.Setxattr(path, attr, data, flags) -} - -// Getxattr calls syscall getxattr -func Getxattr(path, attr string) ([]byte, error) { - return getxattrAll(path, attr, unix.Getxattr) -} - -// LListxattr lists xattrs, not following symlinks -func LListxattr(path string) ([]string, error) { - return listxattrAll(path, unix.Llistxattr) -} - -// LRemovexattr removes an xattr, not following symlinks -func LRemovexattr(path string, attr string) (err error) { - return unix.Lremovexattr(path, attr) -} - -// LSetxattr sets an xattr, not following symlinks -func LSetxattr(path string, attr string, data []byte, flags int) (err error) { - return unix.Lsetxattr(path, attr, data, flags) -} - -// LGetxattr gets an xattr, not following symlinks -func LGetxattr(path, attr string) ([]byte, error) { - return getxattrAll(path, attr, unix.Lgetxattr) -} diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_openbsd.go b/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_openbsd.go deleted file mode 100644 index 723619977d5..00000000000 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_openbsd.go +++ /dev/null @@ -1,7 +0,0 @@ -package sysx - -import ( - "errors" -) - -var unsupported = errors.New("extended attributes unsupported on OpenBSD") diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_solaris.go b/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_solaris.go deleted file mode 100644 index fc523fcbbe1..00000000000 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_solaris.go +++ /dev/null @@ -1,12 +0,0 @@ -package sysx - -import ( - "errors" -) - -// Initial stub version for Solaris. Solaris has a different -// syscall API from Darwin and Linux for extended attributes; -// it is also not widely used. It is not exposed at all by the -// Go syscall package, so we need to implement directly eventually. - -var unsupported = errors.New("extended attributes unsupported on Solaris") diff --git a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_unsupported.go b/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_unsupported.go index c8389bc1366..4f6a12e3559 100644 --- a/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_unsupported.go +++ b/components/engine/vendor/github.com/containerd/continuity/sysx/xattr_unsupported.go @@ -1,7 +1,14 @@ -// +build freebsd openbsd solaris +// +build !linux,!darwin package sysx +import ( + "errors" + "runtime" +) + +var unsupported = errors.New("extended attributes unsupported on " + runtime.GOOS) + // Listxattr calls syscall listxattr and reads all content // and returns a string array func Listxattr(path string) ([]string, error) { diff --git a/components/engine/vendor/github.com/containerd/continuity/vendor.conf b/components/engine/vendor/github.com/containerd/continuity/vendor.conf index 7c80deec583..5bd88d5fd76 100644 --- a/components/engine/vendor/github.com/containerd/continuity/vendor.conf +++ b/components/engine/vendor/github.com/containerd/continuity/vendor.conf @@ -10,4 +10,4 @@ github.com/spf13/pflag 4c012f6dcd9546820e378d0bdda4d8fc772cdfea golang.org/x/crypto 9f005a07e0d31d45e6656d241bb5c0f2efd4bc94 golang.org/x/net a337091b0525af65de94df2eb7e98bd9962dcbe2 golang.org/x/sync 450f422ab23cf9881c94e2db30cac0eb1b7cf80c -golang.org/x/sys 665f6529cca930e27b831a0d1dafffbe1c172924 +golang.org/x/sys 77b0e4315053a57ed2962443614bdb28db152054 diff --git a/components/engine/vendor/github.com/containerd/cri/LICENSE b/components/engine/vendor/github.com/containerd/cri/LICENSE new file mode 100644 index 00000000000..8dada3edaf5 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/cri/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright {yyyy} {name of copyright owner} + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/components/engine/vendor/github.com/containerd/cri/README.md b/components/engine/vendor/github.com/containerd/cri/README.md new file mode 100644 index 00000000000..a97c2fe3da6 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/cri/README.md @@ -0,0 +1,176 @@ +# cri +

+ + +

+ +*Note: The standalone `cri-containerd` binary is end-of-life. `cri-containerd` is +transitioning from a standalone binary that talks to containerd to a plugin within +containerd. This github branch is for the `cri` plugin. See +[standalone-cri-containerd branch](https://github.com/containerd/cri/tree/standalone-cri-containerd) +for information about the standalone version of `cri-containerd`.* + +*Note: You need to [drain your node](https://kubernetes.io/docs/tasks/administer-cluster/safely-drain-node/) before upgrading from standalone `cri-containerd` to containerd with `cri` plugin.* + +[![Build Status](https://api.travis-ci.org/containerd/cri.svg?style=flat-square)](https://travis-ci.org/containerd/cri) +[![Go Report Card](https://goreportcard.com/badge/github.com/containerd/cri)](https://goreportcard.com/report/github.com/containerd/cri) + +`cri` is a [containerd](https://containerd.io/) plugin implementation of Kubernetes [container runtime interface (CRI)](https://github.com/kubernetes/kubernetes/blob/master/pkg/kubelet/apis/cri/runtime/v1alpha2/api.proto). + +With it, you could run Kubernetes using containerd as the container runtime. +![cri](./docs/cri.png) +## Current Status +`cri` is a native plugin of containerd 1.1 and above. It is built into containerd and enabled by default. + +`cri` is in GA: +* It is feature complete. +* It (the GA version) works with Kubernetes 1.10 and above. +* It has passed all [CRI validation tests](https://github.com/kubernetes/community/blob/master/contributors/devel/cri-validation.md). +* It has passed all [node e2e tests](https://github.com/kubernetes/community/blob/master/contributors/devel/e2e-node-tests.md). +* It has passed all [e2e tests](https://github.com/kubernetes/community/blob/master/contributors/devel/e2e-tests.md). + +See [test dashboard](https://k8s-testgrid.appspot.com/sig-node-containerd) +## Support Metrics +| CRI-Containerd Version | Containerd Version | Kubernetes Version | CRI Version | +|:----------------------:|:------------------:|:------------------:|:-----------:| +| v1.0.0-alpha.x | | 1.7, 1.8 | v1alpha1 | +| v1.0.0-beta.x | | 1.9 | v1alpha1 | +| End-Of-Life | v1.1 | 1.10+ | v1alpha2 | +| | HEAD | 1.10+ | v1alpha2 | + +## Production Quality Cluster on GCE +For a production quality cluster on GCE brought up with `kube-up.sh` refer [here](docs/kube-up.md). +## Installing with Ansible and Kubeadm +For a multi node cluster installer and bring up steps using ansible and kubeadm refer [here](contrib/ansible/README.md). +## Custom Installation +For non ansible users, you can download the `cri-containerd` release tarball and deploy +kubernetes cluster using kubeadm as described [here](docs/installation.md). +## Getting Started for Developers +### Binary Dependencies and Specifications +The current release of the `cri` plugin has the following dependencies: +* [containerd](https://github.com/containerd/containerd) +* [runc](https://github.com/opencontainers/runc) +* [CNI](https://github.com/containernetworking/cni) + +See [versions](./vendor.conf) of these dependencies `cri` is tested with. + +As containerd and runc move to their respective general availability releases, +we will do our best to rebase/retest `cri` with these releases on a +weekly/monthly basis. Similarly, given that `cri` uses the Open +Container Initiative (OCI) [image](https://github.com/opencontainers/image-spec) +and [runtime](https://github.com/opencontainers/runtime-spec) specifications, we +will also do our best to update `cri` to the latest releases of these +specifications as appropriate. +### Install Dependencies +1. Install development libraries: +* **libseccomp development library.** Required by `cri` and runc seccomp support. `libseccomp-dev` (Ubuntu, Debian) / `libseccomp-devel` +(Fedora, CentOS, RHEL). On releases of Ubuntu <=Trusty and Debian <=jessie a +backport version of `libseccomp-dev` is required. See [travis.yml](.travis.yml) for an example on trusty. +* **btrfs development library.** Required by containerd btrfs support. `btrfs-tools`(Ubuntu, Debian) / `btrfs-progs-devel`(Fedora, CentOS, RHEL) +2. Install **`socat`** (required by portforward). +2. Install and setup a go 1.10 development environment. +3. Make a local clone of this repository. +4. Install binary dependencies by running the following command from your cloned `cri/` project directory: +```bash +# Note: install.deps installs the above mentioned runc, containerd, and CNI +# binary dependencies. install.deps is only provided for general use and ease of +# testing. To customize `runc` and `containerd` build tags and/or to configure +# `cni`, please follow instructions in their documents. +make install.deps +``` +### Build and Install `cri` +To build and install a version of containerd with the `cri` plugin, enter the +following commands from your `cri` project directory: +```bash +make +sudo make install +``` +*NOTE: The version of containerd built and installed from the `Makefile` is only for +testing purposes. The version tag carries the suffix "-TEST".* +#### Build Tags +`cri` supports optional build tags for compiling support of various features. +To add build tags to the make option the `BUILD_TAGS` variable must be set. + +```bash +make BUILD_TAGS='seccomp apparmor' +``` + +| Build Tag | Feature | Dependency | +|-----------|------------------------------------|---------------------------------| +| seccomp | syscall filtering | libseccomp development library | +| selinux | selinux process and mount labeling | | +| apparmor | apparmor profile support | | +### Validate Your `cri` Setup +A Kubernetes incubator project called [cri-tools](https://github.com/kubernetes-sigs/cri-tools) +includes programs for exercising CRI implementations such as the `cri` plugin. +More importantly, cri-tools includes the program `critest` which is used for running +[CRI Validation Testing](https://github.com/kubernetes/community/blob/master/contributors/devel/cri-validation.md). + +Run the CRI Validation test to validate your installation of `containerd` with `cri` built in: +```bash +make test-cri +``` +### Running a Kubernetes local cluster +If you already have a working development environment for supported Kubernetes +version, you can try `cri` in a local cluster: + +1. Start the version of `containerd` with `cri` plugin that you built and installed +above as root in a first terminal: +```bash +sudo containerd +``` +2. From the Kubernetes project directory startup a local cluster using `containerd`: +```bash +CONTAINER_RUNTIME=remote CONTAINER_RUNTIME_ENDPOINT='unix:///run/containerd/containerd.sock' ./hack/local-up-cluster.sh +``` +### Test +See [here](./docs/testing.md) for information about test. +## Using crictl +See [here](./docs/crictl.md) for information about using `crictl` to debug +pods, containers, and images. +## Configurations +See [here](./docs/config.md) for information about how to configure cri plugins +and [here](https://github.com/containerd/containerd/blob/master/docs/man/containerd-config.1.md) +for information about how to configure containerd +## Documentation +See [here](./docs) for additional documentation. +## Contributing +Interested in contributing? Check out the [documentation](./CONTRIBUTING.md). + +## Communication +This project was originally established in April of 2017 in the Kubernetes +Incubator program. After reaching the Beta stage, In January of 2018, the +project was merged into [containerd](https://github.com/containerd/containerd). + +For async communication and long running discussions please use issues and pull +requests on this github repo. This will be the best place to discuss design and +implementation. + +For sync communication we have a community slack with a #containerd channel that +everyone is welcome to join and chat about development. + +**Slack:** https://dockr.ly/community + +## Other Communications +As this project is tightly coupled to CRI and CRI-Tools and they are Kubernetes +projects, some of our project communications take place in the Kubernetes' SIG: +`sig-node.` + +For more information about `sig-node`, `CRI`, and the `CRI-Tools` projects: +* [sig-node community site](https://github.com/kubernetes/community/tree/master/sig-node) +* Slack: `#sig-node` channel in Kubernetes (kubernetes.slack.com) +* Mailing List: https://groups.google.com/forum/#!forum/kubernetes-sig-node + +### Reporting Security Issues + +__If you are reporting a security issue, please reach out discreetly at security@containerd.io__. + +## Licenses +The containerd codebase is released under the [Apache 2.0 license](https://github.com/containerd/containerd/blob/master/LICENSE.code). +The README.md file, and files in the "docs" folder are licensed under the +Creative Commons Attribution 4.0 International License under the terms and +conditions set forth in the file "[LICENSE.docs](https://github.com/containerd/containerd/blob/master/LICENSE.docs)". You may obtain a duplicate +copy of the same license, titled CC-BY-4.0, at http://creativecommons.org/licenses/by/4.0/. + +## Code of Conduct +This project follows the [CNCF Code of Conduct](https://github.com/cncf/foundation/blob/master/code-of-conduct.md). diff --git a/components/engine/vendor/github.com/containerd/cri/pkg/util/deep_copy.go b/components/engine/vendor/github.com/containerd/cri/pkg/util/deep_copy.go new file mode 100644 index 00000000000..5fdee984b52 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/cri/pkg/util/deep_copy.go @@ -0,0 +1,42 @@ +/* +Copyright 2017 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package util + +import ( + "encoding/json" + + "github.com/pkg/errors" +) + +// DeepCopy makes a deep copy from src into dst. +func DeepCopy(dst interface{}, src interface{}) error { + if dst == nil { + return errors.New("dst cannot be nil") + } + if src == nil { + return errors.New("src cannot be nil") + } + bytes, err := json.Marshal(src) + if err != nil { + return errors.Wrap(err, "unable to marshal src") + } + err = json.Unmarshal(bytes, dst) + if err != nil { + return errors.Wrap(err, "unable to unmarshal into dst") + } + return nil +} diff --git a/components/engine/vendor/github.com/containerd/cri/pkg/util/id.go b/components/engine/vendor/github.com/containerd/cri/pkg/util/id.go new file mode 100644 index 00000000000..11b0a70a65c --- /dev/null +++ b/components/engine/vendor/github.com/containerd/cri/pkg/util/id.go @@ -0,0 +1,29 @@ +/* +Copyright 2017 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package util + +import ( + "encoding/hex" + "math/rand" +) + +// GenerateID generates a random unique id. +func GenerateID() string { + b := make([]byte, 32) + rand.Read(b) + return hex.EncodeToString(b) +} diff --git a/components/engine/vendor/github.com/containerd/cri/pkg/util/image.go b/components/engine/vendor/github.com/containerd/cri/pkg/util/image.go new file mode 100644 index 00000000000..0f471fc4224 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/cri/pkg/util/image.go @@ -0,0 +1,50 @@ +/* +Copyright 2017 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package util + +import ( + "github.com/docker/distribution/reference" +) + +// NormalizeImageRef normalizes the image reference following the docker convention. This is added +// mainly for backward compatibility. +// The reference returned can only be either tagged or digested. For reference contains both tag +// and digest, the function returns digested reference, e.g. docker.io/library/busybox:latest@ +// sha256:7cc4b5aefd1d0cadf8d97d4350462ba51c694ebca145b08d7d41b41acc8db5aa will be returned as +// docker.io/library/busybox@sha256:7cc4b5aefd1d0cadf8d97d4350462ba51c694ebca145b08d7d41b41acc8db5aa. +func NormalizeImageRef(ref string) (reference.Named, error) { + named, err := reference.ParseNormalizedNamed(ref) + if err != nil { + return nil, err + } + if _, ok := named.(reference.NamedTagged); ok { + if canonical, ok := named.(reference.Canonical); ok { + // The reference is both tagged and digested, only + // return digested. + newNamed, err := reference.WithName(canonical.Name()) + if err != nil { + return nil, err + } + newCanonical, err := reference.WithDigest(newNamed, canonical.Digest()) + if err != nil { + return nil, err + } + return newCanonical, nil + } + } + return reference.TagNameOnly(named), nil +} diff --git a/components/engine/vendor/github.com/containerd/cri/pkg/util/strings.go b/components/engine/vendor/github.com/containerd/cri/pkg/util/strings.go new file mode 100644 index 00000000000..d5cbc2e8ef3 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/cri/pkg/util/strings.go @@ -0,0 +1,59 @@ +/* +Copyright 2017 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package util + +import "strings" + +// InStringSlice checks whether a string is inside a string slice. +// Comparison is case insensitive. +func InStringSlice(ss []string, str string) bool { + for _, s := range ss { + if strings.ToLower(s) == strings.ToLower(str) { + return true + } + } + return false +} + +// SubtractStringSlice subtracts string from string slice. +// Comparison is case insensitive. +func SubtractStringSlice(ss []string, str string) []string { + var res []string + for _, s := range ss { + if strings.ToLower(s) == strings.ToLower(str) { + continue + } + res = append(res, s) + } + return res +} + +// MergeStringSlices merges 2 string slices into one and remove duplicated elements. +func MergeStringSlices(a []string, b []string) []string { + set := map[string]struct{}{} + for _, s := range a { + set[s] = struct{}{} + } + for _, s := range b { + set[s] = struct{}{} + } + var ss []string + for s := range set { + ss = append(ss, s) + } + return ss +} diff --git a/components/engine/vendor/github.com/containerd/cri/vendor.conf b/components/engine/vendor/github.com/containerd/cri/vendor.conf new file mode 100644 index 00000000000..a9ffca873ae --- /dev/null +++ b/components/engine/vendor/github.com/containerd/cri/vendor.conf @@ -0,0 +1,78 @@ +github.com/beorn7/perks 4c0e84591b9aa9e6dcfdf3e020114cd81f89d5f9 +github.com/blang/semver v3.1.0 +github.com/boltdb/bolt v1.3.1 +github.com/BurntSushi/toml a368813c5e648fee92e5f6c30e3944ff9d5e8895 +github.com/containerd/cgroups 5e610833b72089b37d0e615de9a92dfc043757c2 +github.com/containerd/console c12b1e7919c14469339a5d38f2f8ed9b64a9de23 +github.com/containerd/containerd 1950f791d9225ffe061c77e74e292bcb3c428a04 +github.com/containerd/continuity f44b615e492bdfb371aae2f76ec694d9da1db537 +github.com/containerd/fifo 3d5202aec260678c48179c56f40e6f38a095738c +github.com/containerd/go-cni 6d7b509a054a3cb1c35ed1865d4fde2f0cb547cd +github.com/containerd/go-runc 5a6d9f37cfa36b15efba46dc7ea349fa9b7143c3 +github.com/containerd/ttrpc 94dde388801693c54f88a6596f713b51a8b30b2d +github.com/containerd/typeurl a93fcdb778cd272c6e9b3028b2f42d813e785d40 +github.com/containernetworking/cni v0.6.0 +github.com/containernetworking/plugins v0.7.0 +github.com/coreos/go-systemd v14 +github.com/davecgh/go-spew v1.1.0 +github.com/docker/distribution b38e5838b7b2f2ad48e06ec4b500011976080621 +github.com/docker/docker 86f080cff0914e9694068ed78d503701667c4c00 +github.com/docker/go-events 9461782956ad83b30282bf90e31fa6a70c255ba9 +github.com/docker/go-metrics 4ea375f7759c82740c893fc030bc37088d2ec098 +github.com/docker/go-units v0.3.1 +github.com/docker/spdystream 449fdfce4d962303d702fec724ef0ad181c92528 +github.com/emicklei/go-restful v2.2.1 +github.com/ghodss/yaml v1.0.0 +github.com/godbus/dbus v3 +github.com/gogo/googleapis 08a7655d27152912db7aaf4f983275eaf8d128ef +github.com/gogo/protobuf v1.0.0 +github.com/golang/glog 44145f04b68cf362d9c4df2182967c2275eaefed +github.com/golang/protobuf v1.1.0 +github.com/google/gofuzz 44d81051d367757e1c7c6a5a86423ece9afcf63c +github.com/grpc-ecosystem/go-grpc-prometheus v1.1 +github.com/hashicorp/errwrap 7554cd9344cec97297fa6649b055a8c98c2a1e55 +github.com/hashicorp/go-multierror ed905158d87462226a13fe39ddf685ea65f1c11f +github.com/json-iterator/go 1.1.5 +github.com/matttproud/golang_protobuf_extensions v1.0.0 +github.com/Microsoft/go-winio v0.4.10 +github.com/Microsoft/hcsshim 44c060121b68e8bdc40b411beba551f3b4ee9e55 +github.com/modern-go/concurrent 1.0.3 +github.com/modern-go/reflect2 1.0.1 +github.com/opencontainers/go-digest c9281466c8b2f606084ac71339773efd177436e7 +github.com/opencontainers/image-spec v1.0.1 +github.com/opencontainers/runc 20aff4f0488c6d4b8df4d85b4f63f1f704c11abd +github.com/opencontainers/runtime-spec d810dbc60d8c5aeeb3d054bd1132fab2121968ce +github.com/opencontainers/runtime-tools v0.6.0 +github.com/opencontainers/selinux b6fa367ed7f534f9ba25391cc2d467085dbb445a +github.com/pkg/errors v0.8.0 +github.com/pmezard/go-difflib v1.0.0 +github.com/prometheus/client_golang f4fb1b73fb099f396a7f0036bf86aa8def4ed823 +github.com/prometheus/client_model 99fa1f4be8e564e8a6b613da7fa6f46c9edafc6c +github.com/prometheus/common 89604d197083d4781071d3c65855d24ecfb0a563 +github.com/prometheus/procfs cb4147076ac75738c9a7d279075a253c0cc5acbd +github.com/seccomp/libseccomp-golang 32f571b70023028bd57d9288c20efbcb237f3ce0 +github.com/sirupsen/logrus v1.0.0 +github.com/stretchr/testify v1.1.4 +github.com/syndtr/gocapability db04d3cc01c8b54962a58ec7e491717d06cfcc16 +github.com/tchap/go-patricia v2.2.6 +github.com/urfave/cli 7bc6a0acffa589f415f88aca16cc1de5ffd66f9c +github.com/xeipuuv/gojsonpointer 4e3ac2762d5f479393488629ee9370b50873b3a6 +github.com/xeipuuv/gojsonreference bd5ef7bd5415a7ac448318e64f11a24cd21e594b +github.com/xeipuuv/gojsonschema 1d523034197ff1f222f6429836dd36a2457a1874 +golang.org/x/crypto 49796115aa4b964c318aad4f3084fdb41e9aa067 +golang.org/x/net b3756b4b77d7b13260a0a2ec658753cf48922eac +golang.org/x/oauth2 a6bd8cefa1811bd24b86f8902872e4e8225f74c4 +golang.org/x/sync 450f422ab23cf9881c94e2db30cac0eb1b7cf80c +golang.org/x/sys 1b2967e3c290b7c545b3db0deeda16e9be4f98a2 https://github.com/golang/sys +golang.org/x/text 19e51611da83d6be54ddafce4a4af510cb3e9ea4 +golang.org/x/time f51c12702a4d776e4c1fa9b0fabab841babae631 +google.golang.org/genproto d80a6e20e776b0b17a324d0ba1ab50a39c8e8944 +google.golang.org/grpc v1.12.0 +gopkg.in/inf.v0 3887ee99ecf07df5b447e9b00d9c0b2adaa9f3e4 +gopkg.in/yaml.v2 53feefa2559fb8dfa8d81baad31be332c97d6c77 +k8s.io/api 012f271b5d41baad56190c5f1ae19bff16df0fd8 +k8s.io/apimachinery 6429050ef506887d121f3e7306e894f8900d8a63 +k8s.io/apiserver e9312c15296b6c2c923ebd5031ff5d1d5fd022d7 +k8s.io/client-go 37c3c02ec96533daec0dbda1f39a6b1d68505c79 +k8s.io/kubernetes v1.12.0-beta.1 +k8s.io/utils 982821ea41da7e7c15f3d3738921eb2e7e241ccd diff --git a/components/engine/vendor/github.com/containerd/go-runc/console.go b/components/engine/vendor/github.com/containerd/go-runc/console.go index 09973e9d6b1..ff223e42766 100644 --- a/components/engine/vendor/github.com/containerd/go-runc/console.go +++ b/components/engine/vendor/github.com/containerd/go-runc/console.go @@ -1,3 +1,5 @@ +// +build !windows + /* Copyright The containerd Authors. diff --git a/components/engine/vendor/github.com/containerd/go-runc/io.go b/components/engine/vendor/github.com/containerd/go-runc/io.go index 1b59a7ef9b6..6cf0410c9d3 100644 --- a/components/engine/vendor/github.com/containerd/go-runc/io.go +++ b/components/engine/vendor/github.com/containerd/go-runc/io.go @@ -20,9 +20,6 @@ import ( "io" "os" "os/exec" - - "github.com/pkg/errors" - "golang.org/x/sys/unix" ) type IO interface { @@ -37,49 +34,22 @@ type StartCloser interface { CloseAfterStart() error } -// NewPipeIO creates pipe pairs to be used with runc -func NewPipeIO(uid, gid int) (i IO, err error) { - var pipes []*pipe - // cleanup in case of an error - defer func() { - if err != nil { - for _, p := range pipes { - p.Close() - } - } - }() - stdin, err := newPipe() - if err != nil { - return nil, err - } - pipes = append(pipes, stdin) - if err = unix.Fchown(int(stdin.r.Fd()), uid, gid); err != nil { - return nil, errors.Wrap(err, "failed to chown stdin") - } +// IOOpt sets I/O creation options +type IOOpt func(*IOOption) - stdout, err := newPipe() - if err != nil { - return nil, err - } - pipes = append(pipes, stdout) - if err = unix.Fchown(int(stdout.w.Fd()), uid, gid); err != nil { - return nil, errors.Wrap(err, "failed to chown stdout") - } +// IOOption holds I/O creation options +type IOOption struct { + OpenStdin bool + OpenStdout bool + OpenStderr bool +} - stderr, err := newPipe() - if err != nil { - return nil, err +func defaultIOOption() *IOOption { + return &IOOption{ + OpenStdin: true, + OpenStdout: true, + OpenStderr: true, } - pipes = append(pipes, stderr) - if err = unix.Fchown(int(stderr.w.Fd()), uid, gid); err != nil { - return nil, errors.Wrap(err, "failed to chown stderr") - } - - return &pipeIO{ - in: stdin, - out: stdout, - err: stderr, - }, nil } func newPipe() (*pipe, error) { @@ -99,9 +69,9 @@ type pipe struct { } func (p *pipe) Close() error { - err := p.r.Close() - if werr := p.w.Close(); err == nil { - err = werr + err := p.w.Close() + if rerr := p.r.Close(); err == nil { + err = rerr } return err } @@ -113,14 +83,23 @@ type pipeIO struct { } func (i *pipeIO) Stdin() io.WriteCloser { + if i.in == nil { + return nil + } return i.in.w } func (i *pipeIO) Stdout() io.ReadCloser { + if i.out == nil { + return nil + } return i.out.r } func (i *pipeIO) Stderr() io.ReadCloser { + if i.err == nil { + return nil + } return i.err.r } @@ -131,28 +110,38 @@ func (i *pipeIO) Close() error { i.out, i.err, } { - if cerr := v.Close(); err == nil { - err = cerr + if v != nil { + if cerr := v.Close(); err == nil { + err = cerr + } } } return err } func (i *pipeIO) CloseAfterStart() error { - for _, f := range []*os.File{ - i.out.w, - i.err.w, + for _, f := range []*pipe{ + i.out, + i.err, } { - f.Close() + if f != nil { + f.w.Close() + } } return nil } // Set sets the io to the exec.Cmd func (i *pipeIO) Set(cmd *exec.Cmd) { - cmd.Stdin = i.in.r - cmd.Stdout = i.out.w - cmd.Stderr = i.err.w + if i.in != nil { + cmd.Stdin = i.in.r + } + if i.out != nil { + cmd.Stdout = i.out.w + } + if i.err != nil { + cmd.Stderr = i.err.w + } } func NewSTDIO() (IO, error) { diff --git a/components/engine/vendor/github.com/containerd/go-runc/io_unix.go b/components/engine/vendor/github.com/containerd/go-runc/io_unix.go new file mode 100644 index 00000000000..567cd072e5f --- /dev/null +++ b/components/engine/vendor/github.com/containerd/go-runc/io_unix.go @@ -0,0 +1,76 @@ +// +build !windows + +/* + Copyright The containerd Authors. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +package runc + +import ( + "github.com/pkg/errors" + "golang.org/x/sys/unix" +) + +// NewPipeIO creates pipe pairs to be used with runc +func NewPipeIO(uid, gid int, opts ...IOOpt) (i IO, err error) { + option := defaultIOOption() + for _, o := range opts { + o(option) + } + var ( + pipes []*pipe + stdin, stdout, stderr *pipe + ) + // cleanup in case of an error + defer func() { + if err != nil { + for _, p := range pipes { + p.Close() + } + } + }() + if option.OpenStdin { + if stdin, err = newPipe(); err != nil { + return nil, err + } + pipes = append(pipes, stdin) + if err = unix.Fchown(int(stdin.r.Fd()), uid, gid); err != nil { + return nil, errors.Wrap(err, "failed to chown stdin") + } + } + if option.OpenStdout { + if stdout, err = newPipe(); err != nil { + return nil, err + } + pipes = append(pipes, stdout) + if err = unix.Fchown(int(stdout.w.Fd()), uid, gid); err != nil { + return nil, errors.Wrap(err, "failed to chown stdout") + } + } + if option.OpenStderr { + if stderr, err = newPipe(); err != nil { + return nil, err + } + pipes = append(pipes, stderr) + if err = unix.Fchown(int(stderr.w.Fd()), uid, gid); err != nil { + return nil, errors.Wrap(err, "failed to chown stderr") + } + } + return &pipeIO{ + in: stdin, + out: stdout, + err: stderr, + }, nil +} diff --git a/components/engine/vendor/github.com/containerd/go-runc/io_windows.go b/components/engine/vendor/github.com/containerd/go-runc/io_windows.go new file mode 100644 index 00000000000..fc56ac4f301 --- /dev/null +++ b/components/engine/vendor/github.com/containerd/go-runc/io_windows.go @@ -0,0 +1,62 @@ +// +build windows + +/* + Copyright The containerd Authors. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +package runc + +// NewPipeIO creates pipe pairs to be used with runc +func NewPipeIO(opts ...IOOpt) (i IO, err error) { + option := defaultIOOption() + for _, o := range opts { + o(option) + } + var ( + pipes []*pipe + stdin, stdout, stderr *pipe + ) + // cleanup in case of an error + defer func() { + if err != nil { + for _, p := range pipes { + p.Close() + } + } + }() + if option.OpenStdin { + if stdin, err = newPipe(); err != nil { + return nil, err + } + pipes = append(pipes, stdin) + } + if option.OpenStdout { + if stdout, err = newPipe(); err != nil { + return nil, err + } + pipes = append(pipes, stdout) + } + if option.OpenStderr { + if stderr, err = newPipe(); err != nil { + return nil, err + } + pipes = append(pipes, stderr) + } + return &pipeIO{ + in: stdin, + out: stdout, + err: stderr, + }, nil +} diff --git a/components/engine/vendor/github.com/containerd/go-runc/runc.go b/components/engine/vendor/github.com/containerd/go-runc/runc.go index ac9c89d8054..96262afab39 100644 --- a/components/engine/vendor/github.com/containerd/go-runc/runc.go +++ b/components/engine/vendor/github.com/containerd/go-runc/runc.go @@ -608,9 +608,8 @@ func parseVersion(data []byte) (Version, error) { var v Version parts := strings.Split(strings.TrimSpace(string(data)), "\n") if len(parts) != 3 { - return v, ErrParseRuncVersion + return v, nil } - for i, p := range []struct { dest *string split string diff --git a/components/engine/vendor/github.com/docker/libkv/README.md b/components/engine/vendor/github.com/docker/libkv/README.md index baad81b4f82..ff2cc446d33 100644 --- a/components/engine/vendor/github.com/docker/libkv/README.md +++ b/components/engine/vendor/github.com/docker/libkv/README.md @@ -90,7 +90,7 @@ Calls like `WatchTree` may return different events (or number of events) dependi Only `Consul` and `etcd` have support for TLS and you should build and provide your own `config.TLS` object to feed the client. Support is planned for `zookeeper`. -##Roadmap +## Roadmap - Make the API nicer to use (using `options`) - Provide more options (`consistency` for example) @@ -98,10 +98,10 @@ Only `Consul` and `etcd` have support for TLS and you should build and provide y - Better key formatting - New backends? -##Contributing +## Contributing Want to hack on libkv? [Docker's contributions guidelines](https://github.com/docker/docker/blob/master/CONTRIBUTING.md) apply. -##Copyright and license +## Copyright and license Copyright © 2014-2016 Docker, Inc. All rights reserved, except as follows. Code is released under the Apache 2.0 license. The README.md file, and files in the "docs" folder are licensed under the Creative Commons Attribution 4.0 International License under the terms and conditions set forth in the file "LICENSE.docs". You may obtain a duplicate copy of the same license, titled CC-BY-SA-4.0, at http://creativecommons.org/licenses/by/4.0/. diff --git a/components/engine/vendor/github.com/docker/libkv/store/boltdb/boltdb.go b/components/engine/vendor/github.com/docker/libkv/store/boltdb/boltdb.go index cdfd74f8789..d62979cb720 100644 --- a/components/engine/vendor/github.com/docker/libkv/store/boltdb/boltdb.go +++ b/components/engine/vendor/github.com/docker/libkv/store/boltdb/boltdb.go @@ -10,9 +10,9 @@ import ( "sync/atomic" "time" - "github.com/boltdb/bolt" "github.com/docker/libkv" "github.com/docker/libkv/store" + bolt "go.etcd.io/bbolt" ) var ( diff --git a/components/engine/vendor/github.com/docker/libkv/store/etcd/etcd.go b/components/engine/vendor/github.com/docker/libkv/store/etcd/etcd.go index c932ca665ef..ec407b0788e 100644 --- a/components/engine/vendor/github.com/docker/libkv/store/etcd/etcd.go +++ b/components/engine/vendor/github.com/docker/libkv/store/etcd/etcd.go @@ -1,6 +1,7 @@ package etcd import ( + "context" "crypto/tls" "errors" "log" @@ -9,8 +10,6 @@ import ( "strings" "time" - "golang.org/x/net/context" - etcd "github.com/coreos/etcd/client" "github.com/docker/libkv" "github.com/docker/libkv/store" @@ -30,13 +29,29 @@ type Etcd struct { } type etcdLock struct { - client etcd.KeysAPI - stopLock chan struct{} + client etcd.KeysAPI + key string + value string + ttl time.Duration + + // Closed when the caller wants to stop renewing the lock. I'm not sure + // why this is even used - you could just call the Unlock() method. stopRenew chan struct{} - key string - value string - last *etcd.Response - ttl time.Duration + // When the lock is held, this is the last modified index of the key. + // Used for conditional updates when extending the lock TTL and when + // conditionall deleteing when Unlock() is called. + lastIndex uint64 + // When the lock is held, this function will cancel the locked context. + // This is called both by the Unlock() method in order to stop the + // background holding goroutine and in a deferred call in that background + // holding goroutine in case the lock is lost due to an error or the + // stopRenew channel is closed. Calling this function also closes the chan + // returned by the Lock() method. + cancel context.CancelFunc + // Used to sync the Unlock() call with the background holding goroutine. + // This channel is closed when that background goroutine exits, signalling + // that it is okay to conditionally delete the key. + doneHolding chan struct{} } const ( @@ -472,112 +487,97 @@ func (s *Etcd) NewLock(key string, options *store.LockOptions) (lock store.Locke // doing so. It returns a channel that is closed if our // lock is lost or if an error occurs func (l *etcdLock) Lock(stopChan chan struct{}) (<-chan struct{}, error) { - - // Lock holder channel - lockHeld := make(chan struct{}) - stopLocking := l.stopRenew - + // Conditional Set - only if the key does not exist. setOpts := &etcd.SetOptions{ - TTL: l.ttl, + TTL: l.ttl, + PrevExist: etcd.PrevNoExist, } for { - setOpts.PrevExist = etcd.PrevNoExist resp, err := l.client.Set(context.Background(), l.key, l.value, setOpts) - if err != nil { - if etcdError, ok := err.(etcd.Error); ok { - if etcdError.Code != etcd.ErrorCodeNodeExist { - return nil, err - } - setOpts.PrevIndex = ^uint64(0) - } - } else { - setOpts.PrevIndex = resp.Node.ModifiedIndex - } - - setOpts.PrevExist = etcd.PrevExist - l.last, err = l.client.Set(context.Background(), l.key, l.value, setOpts) - if err == nil { - // Leader section - l.stopLock = stopLocking - go l.holdLock(l.key, lockHeld, stopLocking) - break - } else { - // If this is a legitimate error, return - if etcdError, ok := err.(etcd.Error); ok { - if etcdError.Code != etcd.ErrorCodeTestFailed { - return nil, err - } - } + // Acquired the lock! + l.lastIndex = resp.Node.ModifiedIndex + lockedCtx, cancel := context.WithCancel(context.Background()) + l.cancel = cancel + l.doneHolding = make(chan struct{}) - // Seeker section - errorCh := make(chan error) - chWStop := make(chan bool) - free := make(chan bool) + go l.holdLock(lockedCtx) - go l.waitLock(l.key, errorCh, chWStop, free) + return lockedCtx.Done(), nil + } - // Wait for the key to be available or for - // a signal to stop trying to lock the key - select { - case <-free: - break - case err := <-errorCh: - return nil, err - case <-stopChan: - return nil, ErrAbortTryLock - } + etcdErr, ok := err.(etcd.Error) + if !ok || etcdErr.Code != etcd.ErrorCodeNodeExist { + return nil, err // Unexpected error. + } - // Delete or Expire event occurred - // Retry + // Need to wait for the lock key to expire or be deleted. + if err := l.waitLock(stopChan, etcdErr.Index); err != nil { + return nil, err } - } - return lockHeld, nil + // Delete or Expire event occurred. + // Retry + } } -// Hold the lock as long as we can +// Hold the lock as long as we can. // Updates the key ttl periodically until we receive -// an explicit stop signal from the Unlock method -func (l *etcdLock) holdLock(key string, lockHeld chan struct{}, stopLocking <-chan struct{}) { - defer close(lockHeld) +// an explicit stop signal from the Unlock method OR +// the stopRenew channel is closed. +func (l *etcdLock) holdLock(ctx context.Context) { + defer close(l.doneHolding) + defer l.cancel() update := time.NewTicker(l.ttl / 3) defer update.Stop() - var err error setOpts := &etcd.SetOptions{TTL: l.ttl} for { select { case <-update.C: - setOpts.PrevIndex = l.last.Node.ModifiedIndex - l.last, err = l.client.Set(context.Background(), key, l.value, setOpts) + setOpts.PrevIndex = l.lastIndex + resp, err := l.client.Set(ctx, l.key, l.value, setOpts) if err != nil { return } - - case <-stopLocking: + l.lastIndex = resp.Node.ModifiedIndex + case <-l.stopRenew: + return + case <-ctx.Done(): return } } } -// WaitLock simply waits for the key to be available for creation -func (l *etcdLock) waitLock(key string, errorCh chan error, stopWatchCh chan bool, free chan<- bool) { - opts := &etcd.WatcherOptions{Recursive: false} - watcher := l.client.Watcher(key, opts) +// WaitLock simply waits for the key to be available for creation. +func (l *etcdLock) waitLock(stopWait <-chan struct{}, afterIndex uint64) error { + waitCtx, waitCancel := context.WithCancel(context.Background()) + defer waitCancel() + go func() { + select { + case <-stopWait: + // If the caller closes the stopWait, cancel the wait context. + waitCancel() + case <-waitCtx.Done(): + // No longer waiting. + } + }() + watcher := l.client.Watcher(l.key, &etcd.WatcherOptions{AfterIndex: afterIndex}) for { - event, err := watcher.Next(context.Background()) + event, err := watcher.Next(waitCtx) if err != nil { - errorCh <- err - return + if err == context.Canceled { + return ErrAbortTryLock + } + return err } - if event.Action == "delete" || event.Action == "expire" { - free <- true - return + switch event.Action { + case "delete", "compareAndDelete", "expire": + return nil // The key has been deleted or expired. } } } @@ -585,19 +585,17 @@ func (l *etcdLock) waitLock(key string, errorCh chan error, stopWatchCh chan boo // Unlock the "key". Calling unlock while // not holding the lock will throw an error func (l *etcdLock) Unlock() error { - if l.stopLock != nil { - l.stopLock <- struct{}{} - } - if l.last != nil { + l.cancel() // Will signal the holdLock goroutine to exit. + <-l.doneHolding // Wait for the holdLock goroutine to exit. + + var err error + if l.lastIndex != 0 { delOpts := &etcd.DeleteOptions{ - PrevIndex: l.last.Node.ModifiedIndex, - } - _, err := l.client.Delete(context.Background(), l.key, delOpts) - if err != nil { - return err + PrevIndex: l.lastIndex, } + _, err = l.client.Delete(context.Background(), l.key, delOpts) } - return nil + return err } // Close closes the client connection diff --git a/components/engine/vendor/github.com/docker/swarmkit/agent/config.go b/components/engine/vendor/github.com/docker/swarmkit/agent/config.go index b4293e9e03c..13024439dd7 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/agent/config.go +++ b/components/engine/vendor/github.com/docker/swarmkit/agent/config.go @@ -1,12 +1,12 @@ package agent import ( - "github.com/boltdb/bolt" "github.com/docker/go-events" "github.com/docker/swarmkit/agent/exec" "github.com/docker/swarmkit/api" "github.com/docker/swarmkit/connectionbroker" "github.com/pkg/errors" + bolt "go.etcd.io/bbolt" "google.golang.org/grpc/credentials" ) diff --git a/components/engine/vendor/github.com/docker/swarmkit/agent/session.go b/components/engine/vendor/github.com/docker/swarmkit/agent/session.go index 8afca9587dc..8c01d08fdd6 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/agent/session.go +++ b/components/engine/vendor/github.com/docker/swarmkit/agent/session.go @@ -136,7 +136,7 @@ func (s *session) start(ctx context.Context, description *api.NodeDescription) e // then in `run` it's possible that we just terminate the function because // `ctx` is done and hence fail to propagate the timeout error to the agent. // If the error is not propogated to the agent, the agent will not close - // the session or rebuild a new sesssion. + // the session or rebuild a new session. sessionCtx, cancelSession := context.WithCancel(ctx) // Need to run Session in a goroutine since there's no way to set a diff --git a/components/engine/vendor/github.com/docker/swarmkit/agent/storage.go b/components/engine/vendor/github.com/docker/swarmkit/agent/storage.go index a49ad81fa42..519880197f2 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/agent/storage.go +++ b/components/engine/vendor/github.com/docker/swarmkit/agent/storage.go @@ -1,9 +1,9 @@ package agent import ( - "github.com/boltdb/bolt" "github.com/docker/swarmkit/api" "github.com/gogo/protobuf/proto" + bolt "go.etcd.io/bbolt" ) // Layout: diff --git a/components/engine/vendor/github.com/docker/swarmkit/agent/worker.go b/components/engine/vendor/github.com/docker/swarmkit/agent/worker.go index 734a5107152..8125145d213 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/agent/worker.go +++ b/components/engine/vendor/github.com/docker/swarmkit/agent/worker.go @@ -3,12 +3,12 @@ package agent import ( "sync" - "github.com/boltdb/bolt" "github.com/docker/swarmkit/agent/exec" "github.com/docker/swarmkit/api" "github.com/docker/swarmkit/log" "github.com/docker/swarmkit/watch" "github.com/sirupsen/logrus" + bolt "go.etcd.io/bbolt" "golang.org/x/net/context" ) diff --git a/components/engine/vendor/github.com/docker/swarmkit/api/specs.pb.go b/components/engine/vendor/github.com/docker/swarmkit/api/specs.pb.go index 2930afc6cbb..14786d3fc1b 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/api/specs.pb.go +++ b/components/engine/vendor/github.com/docker/swarmkit/api/specs.pb.go @@ -622,6 +622,20 @@ type ContainerSpec struct { // PidsLimit prevents from OS resource damage by applications inside the container // using fork bomb attack. PidsLimit int64 `protobuf:"varint,25,opt,name=pidsLimit,proto3" json:"pidsLimit,omitempty"` + // Sysctls sets namespaced kernel parameters (sysctls) in the container. This + // option is equivalent to passing --sysctl to docker run. + // + // Note that while options are subject to the same restrictions as arguments + // passed to the --sysctl flag on docker run, those options are not further + // validated to ensure that they are safe or sensible in a clustered + // environment. + // + // Additionally, sysctls are not validated for support in the underlying + // daemon. For information about supported options, refer to the + // documentation at: + // + // https://docs.docker.com/engine/reference/commandline/run/#configure-namespaced-kernel-parameters-sysctls-at-runtime + Sysctls map[string]string `protobuf:"bytes,26,rep,name=sysctls" json:"sysctls,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"` } func (m *ContainerSpec) Reset() { *m = ContainerSpec{} } @@ -1176,6 +1190,13 @@ func (m *ContainerSpec) CopyFrom(src interface{}) { m.Healthcheck = &HealthConfig{} deepcopy.Copy(m.Healthcheck, o.Healthcheck) } + if o.Sysctls != nil { + m.Sysctls = make(map[string]string, len(o.Sysctls)) + for k, v := range o.Sysctls { + m.Sysctls[k] = v + } + } + } func (m *ContainerSpec_PullOptions) Copy() *ContainerSpec_PullOptions { @@ -2064,6 +2085,25 @@ func (m *ContainerSpec) MarshalTo(dAtA []byte) (int, error) { i++ i = encodeVarintSpecs(dAtA, i, uint64(m.PidsLimit)) } + if len(m.Sysctls) > 0 { + for k, _ := range m.Sysctls { + dAtA[i] = 0xd2 + i++ + dAtA[i] = 0x1 + i++ + v := m.Sysctls[k] + mapSize := 1 + len(k) + sovSpecs(uint64(len(k))) + 1 + len(v) + sovSpecs(uint64(len(v))) + i = encodeVarintSpecs(dAtA, i, uint64(mapSize)) + dAtA[i] = 0xa + i++ + i = encodeVarintSpecs(dAtA, i, uint64(len(k))) + i += copy(dAtA[i:], k) + dAtA[i] = 0x12 + i++ + i = encodeVarintSpecs(dAtA, i, uint64(len(v))) + i += copy(dAtA[i:], v) + } + } return i, nil } @@ -2781,6 +2821,14 @@ func (m *ContainerSpec) Size() (n int) { if m.PidsLimit != 0 { n += 2 + sovSpecs(uint64(m.PidsLimit)) } + if len(m.Sysctls) > 0 { + for k, v := range m.Sysctls { + _ = k + _ = v + mapEntrySize := 1 + len(k) + sovSpecs(uint64(len(k))) + 1 + len(v) + sovSpecs(uint64(len(v))) + n += mapEntrySize + 2 + sovSpecs(uint64(mapEntrySize)) + } + } return n } @@ -3103,6 +3151,16 @@ func (this *ContainerSpec) String() string { mapStringForLabels += fmt.Sprintf("%v: %v,", k, this.Labels[k]) } mapStringForLabels += "}" + keysForSysctls := make([]string, 0, len(this.Sysctls)) + for k, _ := range this.Sysctls { + keysForSysctls = append(keysForSysctls, k) + } + sortkeys.Strings(keysForSysctls) + mapStringForSysctls := "map[string]string{" + for _, k := range keysForSysctls { + mapStringForSysctls += fmt.Sprintf("%v: %v,", k, this.Sysctls[k]) + } + mapStringForSysctls += "}" s := strings.Join([]string{`&ContainerSpec{`, `Image:` + fmt.Sprintf("%v", this.Image) + `,`, `Labels:` + mapStringForLabels + `,`, @@ -3129,6 +3187,7 @@ func (this *ContainerSpec) String() string { `Init:` + strings.Replace(fmt.Sprintf("%v", this.Init), "BoolValue", "google_protobuf4.BoolValue", 1) + `,`, `Isolation:` + fmt.Sprintf("%v", this.Isolation) + `,`, `PidsLimit:` + fmt.Sprintf("%v", this.PidsLimit) + `,`, + `Sysctls:` + mapStringForSysctls + `,`, `}`, }, "") return s @@ -5277,6 +5336,124 @@ func (m *ContainerSpec) Unmarshal(dAtA []byte) error { break } } + case 26: + if wireType != 2 { + return fmt.Errorf("proto: wrong wireType = %d for field Sysctls", wireType) + } + var msglen int + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowSpecs + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + msglen |= (int(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + if msglen < 0 { + return ErrInvalidLengthSpecs + } + postIndex := iNdEx + msglen + if postIndex > l { + return io.ErrUnexpectedEOF + } + if m.Sysctls == nil { + m.Sysctls = make(map[string]string) + } + var mapkey string + var mapvalue string + for iNdEx < postIndex { + entryPreIndex := iNdEx + var wire uint64 + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowSpecs + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + wire |= (uint64(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + fieldNum := int32(wire >> 3) + if fieldNum == 1 { + var stringLenmapkey uint64 + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowSpecs + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + stringLenmapkey |= (uint64(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + intStringLenmapkey := int(stringLenmapkey) + if intStringLenmapkey < 0 { + return ErrInvalidLengthSpecs + } + postStringIndexmapkey := iNdEx + intStringLenmapkey + if postStringIndexmapkey > l { + return io.ErrUnexpectedEOF + } + mapkey = string(dAtA[iNdEx:postStringIndexmapkey]) + iNdEx = postStringIndexmapkey + } else if fieldNum == 2 { + var stringLenmapvalue uint64 + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowSpecs + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + stringLenmapvalue |= (uint64(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + intStringLenmapvalue := int(stringLenmapvalue) + if intStringLenmapvalue < 0 { + return ErrInvalidLengthSpecs + } + postStringIndexmapvalue := iNdEx + intStringLenmapvalue + if postStringIndexmapvalue > l { + return io.ErrUnexpectedEOF + } + mapvalue = string(dAtA[iNdEx:postStringIndexmapvalue]) + iNdEx = postStringIndexmapvalue + } else { + iNdEx = entryPreIndex + skippy, err := skipSpecs(dAtA[iNdEx:]) + if err != nil { + return err + } + if skippy < 0 { + return ErrInvalidLengthSpecs + } + if (iNdEx + skippy) > postIndex { + return io.ErrUnexpectedEOF + } + iNdEx += skippy + } + } + m.Sysctls[mapkey] = mapvalue + iNdEx = postIndex default: iNdEx = preIndex skippy, err := skipSpecs(dAtA[iNdEx:]) @@ -6588,139 +6765,141 @@ var ( func init() { proto.RegisterFile("github.com/docker/swarmkit/api/specs.proto", fileDescriptorSpecs) } var fileDescriptorSpecs = []byte{ - // 2131 bytes of a gzipped FileDescriptorProto - 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xcc, 0x58, 0x4f, 0x6f, 0x1b, 0xc7, - 0x15, 0x17, 0x25, 0x8a, 0x22, 0xdf, 0x52, 0x36, 0x35, 0x71, 0x9c, 0x15, 0x6d, 0x4b, 0x34, 0xe3, - 0xb8, 0x4a, 0x82, 0x52, 0xa8, 0x1a, 0xa4, 0x4e, 0xdc, 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0xab, 0xa9, 0xbf, 0x5d, + 0xac, 0xa6, 0x0e, 0x33, 0xba, 0x3e, 0xfa, 0xe1, 0xbf, 0x03, 0x00, 0x00, 0xff, 0xff, 0x32, 0x89, + 0x54, 0x8a, 0x4d, 0x16, 0x00, 0x00, } diff --git a/components/engine/vendor/github.com/docker/swarmkit/api/specs.proto b/components/engine/vendor/github.com/docker/swarmkit/api/specs.proto index 14448d0409c..f4645426099 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/api/specs.proto +++ b/components/engine/vendor/github.com/docker/swarmkit/api/specs.proto @@ -315,9 +315,24 @@ message ContainerSpec { // Runtimes that don't support it ignore that field Isolation isolation = 24; - // PidsLimit prevents from OS resource damage by applications inside the container + // PidsLimit prevents from OS resource damage by applications inside the container // using fork bomb attack. int64 pidsLimit = 25; + + // Sysctls sets namespaced kernel parameters (sysctls) in the container. This + // option is equivalent to passing --sysctl to docker run. + // + // Note that while options are subject to the same restrictions as arguments + // passed to the --sysctl flag on docker run, those options are not further + // validated to ensure that they are safe or sensible in a clustered + // environment. + // + // Additionally, sysctls are not validated for support in the underlying + // daemon. For information about supported options, refer to the + // documentation at: + // + // https://docs.docker.com/engine/reference/commandline/run/#configure-namespaced-kernel-parameters-sysctls-at-runtime + map sysctls = 26; } // EndpointSpec defines the properties that can be configured to diff --git a/components/engine/vendor/github.com/docker/swarmkit/api/types.pb.go b/components/engine/vendor/github.com/docker/swarmkit/api/types.pb.go index 2ddc007569c..f41d5e20337 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/api/types.pb.go +++ b/components/engine/vendor/github.com/docker/swarmkit/api/types.pb.go @@ -213,20 +213,23 @@ func (NodeStatus_State) EnumDescriptor() ([]byte, []int) { return fileDescriptor type Mount_MountType int32 const ( - MountTypeBind Mount_MountType = 0 - MountTypeVolume Mount_MountType = 1 - MountTypeTmpfs Mount_MountType = 2 + MountTypeBind Mount_MountType = 0 + MountTypeVolume Mount_MountType = 1 + MountTypeTmpfs Mount_MountType = 2 + MountTypeNamedPipe Mount_MountType = 3 ) var Mount_MountType_name = map[int32]string{ 0: "BIND", 1: "VOLUME", 2: "TMPFS", + 3: "NPIPE", } var Mount_MountType_value = map[string]int32{ "BIND": 0, "VOLUME": 1, "TMPFS": 2, + "NPIPE": 3, } func (x Mount_MountType) String() string { @@ -17080,325 +17083,326 @@ var ( func init() { proto.RegisterFile("github.com/docker/swarmkit/api/types.proto", fileDescriptorTypes) } var fileDescriptorTypes = []byte{ - // 5116 bytes of a gzipped FileDescriptorProto - 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xac, 0x7a, 0x5d, 0x6c, 0x23, 0x59, - 0x56, 0x7f, 0xec, 0xd8, 0x8e, 0x7d, 0xec, 0x24, 0xd5, 0xb7, 0xb3, 0x3d, 0x69, 0x6f, 0x4f, 0xe2, - 0xa9, 0x99, 0xde, 0x99, 0xed, 0x9d, 0xbf, 0xfb, 0x6b, 0x77, 0xd5, 0x33, 0xf3, 0xdf, 0x9d, 0xb1, - 0xcb, 0x95, 0x8e, 0xb7, 0xd3, 0xb6, 0x75, 0xed, 0x74, 0xef, 0x22, 0x41, 0x51, 0xa9, 0xba, 0x71, - 0x6a, 0x52, 0xae, 0x6b, 0xaa, 0xca, 0xe9, 0x36, 0x0b, 0x62, 0xc4, 0x03, 0xa0, 0x3c, 0xc1, 0x0b, - 0x2c, 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0x21, 0x72, 0x94, 0x2a, 0x2c, 0xee, 0xd4, 0x3b, 0xf5, + 0xa7, 0x1a, 0x0e, 0x4b, 0xee, 0x21, 0x40, 0x86, 0x6b, 0x15, 0x45, 0x76, 0x10, 0xe9, 0x6c, 0xac, + 0xfd, 0xf0, 0x27, 0xeb, 0x0b, 0x3f, 0xfe, 0xc9, 0xfa, 0xc2, 0x27, 0xe7, 0xeb, 0xa9, 0x1f, 0x9e, + 0xaf, 0xa7, 0xfe, 0xf6, 0x7c, 0x3d, 0xf5, 0x2f, 0xe7, 0xeb, 0xa9, 0xbd, 0x3c, 0xbf, 0x54, 0x1e, + 0xff, 0x4f, 0x00, 0x00, 0x00, 0xff, 0xff, 0xac, 0xef, 0xe8, 0x11, 0x9e, 0x32, 0x00, 0x00, } diff --git a/components/engine/vendor/github.com/docker/swarmkit/api/types.proto b/components/engine/vendor/github.com/docker/swarmkit/api/types.proto index d25d6625e9c..26c31976679 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/api/types.proto +++ b/components/engine/vendor/github.com/docker/swarmkit/api/types.proto @@ -202,6 +202,7 @@ message Mount { BIND = 0 [(gogoproto.enumvalue_customname) = "MountTypeBind"]; // Bind mount host dir VOLUME = 1 [(gogoproto.enumvalue_customname) = "MountTypeVolume"]; // Remote storage volumes TMPFS = 2 [(gogoproto.enumvalue_customname) = "MountTypeTmpfs"]; // Mount a tmpfs + NPIPE = 3 [(gogoproto.enumvalue_customname) = "MountTypeNamedPipe"]; // Windows named pipes } // Type defines the nature of the mount. diff --git a/components/engine/vendor/github.com/docker/swarmkit/manager/allocator/allocator.go b/components/engine/vendor/github.com/docker/swarmkit/manager/allocator/allocator.go index a6f0289a021..e8b7e88c473 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/manager/allocator/allocator.go +++ b/components/engine/vendor/github.com/docker/swarmkit/manager/allocator/allocator.go @@ -1,12 +1,12 @@ package allocator import ( - "net" "sync" "github.com/docker/docker/pkg/plugingetter" "github.com/docker/go-events" "github.com/docker/swarmkit/api" + "github.com/docker/swarmkit/manager/allocator/cnmallocator" "github.com/docker/swarmkit/manager/state" "github.com/docker/swarmkit/manager/state/store" "golang.org/x/net/context" @@ -34,12 +34,8 @@ type Allocator struct { // pluginGetter provides access to docker's plugin inventory. pluginGetter plugingetter.PluginGetter - // DefaultAddrPool specifies default subnet pool for global scope networks - defaultAddrPool []*net.IPNet - - // SubnetSize specifies the subnet size of the networks created from - // the default subnet pool - subnetSize int + // networkConfig stores network related config for the cluster + networkConfig *cnmallocator.NetworkConfig } // taskBallot controls how the voting for task allocation is @@ -73,17 +69,16 @@ type allocActor struct { // New returns a new instance of Allocator for use during allocation // stage of the manager. -func New(store *store.MemoryStore, pg plugingetter.PluginGetter, defaultAddrPool []*net.IPNet, subnetSize int) (*Allocator, error) { +func New(store *store.MemoryStore, pg plugingetter.PluginGetter, netConfig *cnmallocator.NetworkConfig) (*Allocator, error) { a := &Allocator{ store: store, taskBallot: &taskBallot{ votes: make(map[string][]string), }, - stopChan: make(chan struct{}), - doneChan: make(chan struct{}), - pluginGetter: pg, - defaultAddrPool: defaultAddrPool, - subnetSize: subnetSize, + stopChan: make(chan struct{}), + doneChan: make(chan struct{}), + pluginGetter: pg, + networkConfig: netConfig, } return a, nil diff --git a/components/engine/vendor/github.com/docker/swarmkit/manager/allocator/cnmallocator/drivers_ipam.go b/components/engine/vendor/github.com/docker/swarmkit/manager/allocator/cnmallocator/drivers_ipam.go index d0daccc75ac..39bce0615c7 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/manager/allocator/cnmallocator/drivers_ipam.go +++ b/components/engine/vendor/github.com/docker/swarmkit/manager/allocator/cnmallocator/drivers_ipam.go @@ -1,7 +1,6 @@ package cnmallocator import ( - "net" "strconv" "strings" @@ -14,7 +13,7 @@ import ( "github.com/sirupsen/logrus" ) -func initIPAMDrivers(r *drvregistry.DrvRegistry, defaultAddrPool []*net.IPNet, subnetSize int) error { +func initIPAMDrivers(r *drvregistry.DrvRegistry, netConfig *NetworkConfig) error { var addressPool []*ipamutils.NetworkToSplit var str strings.Builder str.WriteString("Subnetlist - ") @@ -22,16 +21,16 @@ func initIPAMDrivers(r *drvregistry.DrvRegistry, defaultAddrPool []*net.IPNet, s // from the info. We will be using it to call Libnetwork API // We also need to log new address pool info whenever swarm init // happens with default address pool option - if defaultAddrPool != nil { - for _, p := range defaultAddrPool { + if netConfig != nil { + for _, p := range netConfig.DefaultAddrPool { addressPool = append(addressPool, &ipamutils.NetworkToSplit{ - Base: p.String(), - Size: subnetSize, + Base: p, + Size: int(netConfig.SubnetSize), }) - str.WriteString(p.String() + ",") + str.WriteString(p + ",") } str.WriteString(": Size ") - str.WriteString(strconv.Itoa(subnetSize)) + str.WriteString(strconv.Itoa(int(netConfig.SubnetSize))) } if err := ipamutils.ConfigGlobalScopeDefaultNetworks(addressPool); err != nil { return err diff --git a/components/engine/vendor/github.com/docker/swarmkit/manager/allocator/cnmallocator/networkallocator.go b/components/engine/vendor/github.com/docker/swarmkit/manager/allocator/cnmallocator/networkallocator.go index 22229d50956..7a786406e14 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/manager/allocator/cnmallocator/networkallocator.go +++ b/components/engine/vendor/github.com/docker/swarmkit/manager/allocator/cnmallocator/networkallocator.go @@ -86,8 +86,18 @@ type initializer struct { ntype string } +// NetworkConfig is used to store network related cluster config in the Manager. +type NetworkConfig struct { + // DefaultAddrPool specifies default subnet pool for global scope networks + DefaultAddrPool []string + + // SubnetSize specifies the subnet size of the networks created from + // the default subnet pool + SubnetSize uint32 +} + // New returns a new NetworkAllocator handle -func New(pg plugingetter.PluginGetter, defaultAddrPool []*net.IPNet, subnetSize int) (networkallocator.NetworkAllocator, error) { +func New(pg plugingetter.PluginGetter, netConfig *NetworkConfig) (networkallocator.NetworkAllocator, error) { na := &cnmNetworkAllocator{ networks: make(map[string]*network), services: make(map[string]struct{}), @@ -106,7 +116,7 @@ func New(pg plugingetter.PluginGetter, defaultAddrPool []*net.IPNet, subnetSize return nil, err } - if err = initIPAMDrivers(reg, defaultAddrPool, subnetSize); err != nil { + if err = initIPAMDrivers(reg, netConfig); err != nil { return nil, err } diff --git a/components/engine/vendor/github.com/docker/swarmkit/manager/allocator/network.go b/components/engine/vendor/github.com/docker/swarmkit/manager/allocator/network.go index 88f665c2fe5..e4d5b61827a 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/manager/allocator/network.go +++ b/components/engine/vendor/github.com/docker/swarmkit/manager/allocator/network.go @@ -68,7 +68,15 @@ type networkContext struct { } func (a *Allocator) doNetworkInit(ctx context.Context) (err error) { - na, err := cnmallocator.New(a.pluginGetter, a.defaultAddrPool, a.subnetSize) + var netConfig *cnmallocator.NetworkConfig + if a.networkConfig != nil && a.networkConfig.DefaultAddrPool != nil { + netConfig = &cnmallocator.NetworkConfig{ + DefaultAddrPool: a.networkConfig.DefaultAddrPool, + SubnetSize: a.networkConfig.SubnetSize, + } + } + + na, err := cnmallocator.New(a.pluginGetter, netConfig) if err != nil { return err } diff --git a/components/engine/vendor/github.com/docker/swarmkit/manager/controlapi/cluster.go b/components/engine/vendor/github.com/docker/swarmkit/manager/controlapi/cluster.go index 7b348072948..ad248044844 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/manager/controlapi/cluster.go +++ b/components/engine/vendor/github.com/docker/swarmkit/manager/controlapi/cluster.go @@ -19,6 +19,13 @@ const ( // expiredCertGrace is the amount of time to keep a node in the // blacklist beyond its certificate expiration timestamp. expiredCertGrace = 24 * time.Hour * 7 + // inbuilt default subnet size + inbuiltSubnetSize = 24 +) + +var ( + // inbuilt default address pool + inbuiltDefaultAddressPool = []string{"10.0.0.0/8"} ) func validateClusterSpec(spec *api.ClusterSpec) error { @@ -268,6 +275,12 @@ func redactClusters(clusters []*api.Cluster) []*api.Cluster { DefaultAddressPool: cluster.DefaultAddressPool, SubnetSize: cluster.SubnetSize, } + if newCluster.DefaultAddressPool == nil { + // This is just for CLI display. Set the inbuilt default pool for + // user reference. + newCluster.DefaultAddressPool = inbuiltDefaultAddressPool + newCluster.SubnetSize = inbuiltSubnetSize + } redactedClusters = append(redactedClusters, newCluster) } diff --git a/components/engine/vendor/github.com/docker/swarmkit/manager/dispatcher/dispatcher.go b/components/engine/vendor/github.com/docker/swarmkit/manager/dispatcher/dispatcher.go index d783fd4c35e..569ab263758 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/manager/dispatcher/dispatcher.go +++ b/components/engine/vendor/github.com/docker/swarmkit/manager/dispatcher/dispatcher.go @@ -342,6 +342,39 @@ func (d *Dispatcher) Stop() error { d.cancel() d.mu.Unlock() + d.processUpdatesLock.Lock() + // when we called d.cancel(), there may be routines, servicing RPC calls to + // the (*Dispatcher).Session endpoint, currently waiting at + // d.processUpdatesCond.Wait() inside of (*Dispatcher).markNodeReady(). + // + // these routines are typically woken by a call to + // d.processUpdatesCond.Broadcast() at the end of + // (*Dispatcher).processUpdates() as part of the main Run loop. However, + // when d.cancel() is called, the main Run loop is stopped, and there are + // no more opportunties for processUpdates to be called. Any calls to + // Session would be stuck waiting on a call to Broadcast that will never + // come. + // + // Further, because the rpcRW write lock cannot be obtained until every RPC + // has exited and released its read lock, then Stop would be stuck forever. + // + // To avoid this case, we acquire the processUpdatesLock (so that no new + // waits can start) and then do a Broadcast to wake all of the waiting + // routines. Further, if any routines are waiting in markNodeReady to + // acquire this lock, but not yet waiting, those routines will check the + // context cancelation, see the context is canceled, and exit before doing + // the Wait. + // + // This call to Broadcast must occur here. If we called Broadcast before + // context cancelation, then some new routines could enter the wait. If we + // call Broadcast after attempting to acquire the rpcRW lock, we will be + // deadlocked. If we do this Broadcast without obtaining this lock (as is + // done in the processUpdates method), then it would be possible for that + // broadcast to come after the context cancelation check in markNodeReady, + // but before the call to Wait. + d.processUpdatesCond.Broadcast() + d.processUpdatesLock.Unlock() + // The active nodes list can be cleaned out only when all // existing RPCs have finished. // RPCs that start after rpcRW.Unlock() should find the context @@ -351,13 +384,6 @@ func (d *Dispatcher) Stop() error { d.downNodes.Clean() d.rpcRW.Unlock() - d.processUpdatesLock.Lock() - // In case there are any waiters. There is no chance of any starting - // after this point, because they check if the context is canceled - // before waiting. - d.processUpdatesCond.Broadcast() - d.processUpdatesLock.Unlock() - d.clusterUpdateQueue.Close() // TODO(anshul): This use of Wait() could be unsafe. diff --git a/components/engine/vendor/github.com/docker/swarmkit/manager/manager.go b/components/engine/vendor/github.com/docker/swarmkit/manager/manager.go index c8bafb77aaa..106c8e2b585 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/manager/manager.go +++ b/components/engine/vendor/github.com/docker/swarmkit/manager/manager.go @@ -20,6 +20,7 @@ import ( "github.com/docker/swarmkit/identity" "github.com/docker/swarmkit/log" "github.com/docker/swarmkit/manager/allocator" + "github.com/docker/swarmkit/manager/allocator/cnmallocator" "github.com/docker/swarmkit/manager/allocator/networkallocator" "github.com/docker/swarmkit/manager/controlapi" "github.com/docker/swarmkit/manager/dispatcher" @@ -127,12 +128,8 @@ type Config struct { // FIPS setting. FIPS bool - // DefaultAddrPool specifies default subnet pool for global scope networks - DefaultAddrPool []*net.IPNet - - // SubnetSize specifies the subnet size of the networks created from - // the default subnet pool - SubnetSize int + // NetworkConfig stores network related config for the cluster + NetworkConfig *cnmallocator.NetworkConfig } // Manager is the cluster manager for Swarm. @@ -947,14 +944,10 @@ func (m *Manager) becomeLeader(ctx context.Context) { nil, 0) - var defaultAddrPool []string - for _, p := range m.config.DefaultAddrPool { - defaultAddrPool = append(defaultAddrPool, p.String()) - } // If defaultAddrPool is valid we update cluster object with new value - if defaultAddrPool != nil { - clusterObj.DefaultAddressPool = defaultAddrPool - clusterObj.SubnetSize = uint32(m.config.SubnetSize) + if m.config.NetworkConfig != nil && m.config.NetworkConfig.DefaultAddrPool != nil { + clusterObj.DefaultAddressPool = m.config.NetworkConfig.DefaultAddrPool + clusterObj.SubnetSize = m.config.NetworkConfig.SubnetSize } err := store.CreateCluster(tx, clusterObj) @@ -1003,24 +996,20 @@ func (m *Manager) becomeLeader(ctx context.Context) { // If DefaultAddrPool is null, Read from store and check if // DefaultAddrPool info is stored in cluster object - if m.config.DefaultAddrPool == nil { + if m.config.NetworkConfig == nil || m.config.NetworkConfig.DefaultAddrPool == nil { var cluster *api.Cluster s.View(func(tx store.ReadTx) { cluster = store.GetCluster(tx, clusterID) }) if cluster.DefaultAddressPool != nil { for _, address := range cluster.DefaultAddressPool { - _, b, err := net.ParseCIDR(address) - if err != nil { - log.G(ctx).WithError(err).Error("Default Address Pool reading failed for cluster object %s", address) - } - m.config.DefaultAddrPool = append(m.config.DefaultAddrPool, b) + m.config.NetworkConfig.DefaultAddrPool = append(m.config.NetworkConfig.DefaultAddrPool, address) } + m.config.NetworkConfig.SubnetSize = cluster.SubnetSize } - m.config.SubnetSize = int(cluster.SubnetSize) } - m.allocator, err = allocator.New(s, m.config.PluginGetter, m.config.DefaultAddrPool, m.config.SubnetSize) + m.allocator, err = allocator.New(s, m.config.PluginGetter, m.config.NetworkConfig) if err != nil { log.G(ctx).WithError(err).Error("failed to create allocator") // TODO(stevvooe): It doesn't seem correct here to fail @@ -1144,7 +1133,7 @@ func defaultClusterObject( rootCA *ca.RootCA, fips bool, defaultAddressPool []string, - subnetSize int) *api.Cluster { + subnetSize uint32) *api.Cluster { var caKey []byte if rcaSigner, err := rootCA.Signer(); err == nil { caKey = rcaSigner.Key @@ -1178,7 +1167,7 @@ func defaultClusterObject( UnlockKeys: initialUnlockKeys, FIPS: fips, DefaultAddressPool: defaultAddressPool, - SubnetSize: uint32(subnetSize), + SubnetSize: subnetSize, } } diff --git a/components/engine/vendor/github.com/docker/swarmkit/node/node.go b/components/engine/vendor/github.com/docker/swarmkit/node/node.go index 843c7389956..6cbf265c5d3 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/node/node.go +++ b/components/engine/vendor/github.com/docker/swarmkit/node/node.go @@ -17,7 +17,6 @@ import ( "github.com/docker/swarmkit/ca/keyutils" "github.com/docker/swarmkit/identity" - "github.com/boltdb/bolt" "github.com/docker/docker/pkg/plugingetter" metrics "github.com/docker/go-metrics" "github.com/docker/swarmkit/agent" @@ -28,12 +27,14 @@ import ( "github.com/docker/swarmkit/ioutils" "github.com/docker/swarmkit/log" "github.com/docker/swarmkit/manager" + "github.com/docker/swarmkit/manager/allocator/cnmallocator" "github.com/docker/swarmkit/manager/encryption" "github.com/docker/swarmkit/remotes" "github.com/docker/swarmkit/xnet" grpc_prometheus "github.com/grpc-ecosystem/go-grpc-prometheus" "github.com/pkg/errors" "github.com/sirupsen/logrus" + bolt "go.etcd.io/bbolt" "golang.org/x/net/context" "google.golang.org/grpc" "google.golang.org/grpc/credentials" @@ -105,12 +106,8 @@ type Config struct { // for connections to the remote API (including the raft service). AdvertiseRemoteAPI string - // DefaultAddrPool specifies default subnet pool for global scope networks - DefaultAddrPool []*net.IPNet - - // SubnetSize specifies the subnet size of the networks created from - // the default subnet pool - SubnetSize int + // NetworkConfig stores network related config for the cluster + NetworkConfig *cnmallocator.NetworkConfig // Executor specifies the executor to use for the agent. Executor exec.Executor @@ -1002,8 +999,7 @@ func (n *Node) runManager(ctx context.Context, securityConfig *ca.SecurityConfig PluginGetter: n.config.PluginGetter, RootCAPaths: rootPaths, FIPS: n.config.FIPS, - DefaultAddrPool: n.config.DefaultAddrPool, - SubnetSize: n.config.SubnetSize, + NetworkConfig: n.config.NetworkConfig, }) if err != nil { return false, err diff --git a/components/engine/vendor/github.com/docker/swarmkit/vendor.conf b/components/engine/vendor/github.com/docker/swarmkit/vendor.conf index c86ff34a002..f91ea497e0a 100644 --- a/components/engine/vendor/github.com/docker/swarmkit/vendor.conf +++ b/components/engine/vendor/github.com/docker/swarmkit/vendor.conf @@ -43,7 +43,6 @@ github.com/davecgh/go-spew 346938d642f2ec3594ed81d874461961cd0faa76 # v1.1.0 github.com/Microsoft/go-winio v0.4.8 github.com/sirupsen/logrus v1.0.3 github.com/beorn7/perks 4c0e84591b9aa9e6dcfdf3e020114cd81f89d5f9 -github.com/boltdb/bolt fff57c100f4dea1905678da7e90d92429dff2904 github.com/cloudflare/cfssl 1.3.2 github.com/dustin/go-humanize 8929fe90cee4b2cb9deb468b51fb34eba64d1bf0 github.com/fernet/fernet-go 1b2437bc582b3cfbb341ee5a29f8ef5b42912ff2 @@ -60,6 +59,7 @@ github.com/rcrowley/go-metrics 51425a2415d21afadfd55cd93432c0bc69e9598d github.com/spf13/cobra 8e91712f174ced10270cf66615e0a9127e7c4de5 github.com/spf13/pflag 7f60f83a2c81bc3c3c0d5297f61ddfa68da9d3b7 github.com/stretchr/testify v1.1.4 +go.etcd.io/bbolt v1.3.1-etcd.8 golang.org/x/crypto 1a580b3eff7814fc9b40602fd35256c63b50f491 golang.org/x/net 0ed95abb35c445290478a5348a7b38bb154135fd golang.org/x/sys 37707fdb30a5b38865cfb95e5aab41707daec7fd