diff --git a/.travis.yml b/.travis.yml index 14dfc89..fb30ebe 100644 --- a/.travis.yml +++ b/.travis.yml @@ -2,7 +2,7 @@ sudo: required language: go go: -- "1.11.x" +- "1.13.x" go_import_path: github.com/nats-io/nats-streaming-operator diff --git a/deploy/examples/example-stan-ft-mode.yaml b/deploy/examples/example-stan-ft-mode.yaml new file mode 100644 index 0000000..ba5ce45 --- /dev/null +++ b/deploy/examples/example-stan-ft-mode.yaml @@ -0,0 +1,30 @@ +--- +apiVersion: "streaming.nats.io/v1alpha1" +kind: "NatsStreamingCluster" +metadata: + name: "stan-ft" +spec: + natsSvc: "nats" + size: 3 + + image: "nats-streaming:latest" + + config: + storeDir: "/pv/stan" + + # When this option is introduced, the servers are restarted + # one by one until they are all running with ft mode. + ftGroup: "stan" + + # Define mounts in the Pod Spec + template: + spec: + volumes: + - name: stan-store-dir + persistentVolumeClaim: + claimName: streaming-pvc + containers: + - name: nats-streaming + volumeMounts: + - mountPath: /pv + name: stan-store-dir diff --git a/go.mod b/go.mod index f8e8684..b3bb4e7 100644 --- a/go.mod +++ b/go.mod @@ -3,32 +3,32 @@ module github.com/nats-io/nats-streaming-operator go 1.12 require ( - contrib.go.opencensus.io/exporter/ocagent v0.4.9 // indirect - github.com/Azure/go-autorest v11.5.2+incompatible // indirect - github.com/dgrijalva/jwt-go v3.2.0+incompatible // indirect github.com/evanphx/json-patch v4.1.0+incompatible // indirect github.com/gogo/protobuf v1.2.1 // indirect - github.com/golang/mock v1.2.0 // indirect + github.com/golang/groupcache v0.0.0-20191027212112-611e8accdfc9 // indirect + github.com/golang/protobuf v1.3.1 // indirect github.com/google/btree v1.0.0 // indirect github.com/google/gofuzz v0.0.0-20170612174753-24818f796faf // indirect github.com/googleapis/gnostic v0.2.0 // indirect - github.com/gophercloud/gophercloud v0.0.0-20190318015731-ff9851476e98 // indirect github.com/gregjones/httpcache v0.0.0-20190212212710-3befbb6ad0cc // indirect - github.com/grpc-ecosystem/grpc-gateway v1.8.5 // indirect github.com/hashicorp/golang-lru v0.5.1 // indirect github.com/imdario/mergo v0.3.7 // indirect github.com/json-iterator/go v1.1.6 // indirect + github.com/kr/pretty v0.1.0 // indirect github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect github.com/modern-go/reflect2 v1.0.1 // indirect + github.com/onsi/ginkgo v1.7.0 // indirect + github.com/onsi/gomega v1.4.3 // indirect github.com/peterbourgon/diskv v2.0.1+incompatible // indirect github.com/sirupsen/logrus v1.4.0 github.com/spf13/pflag v1.0.3 // indirect - go.opencensus.io v0.19.2 // indirect golang.org/x/crypto v0.0.0-20190320223903-b7391e95e576 // indirect golang.org/x/net v0.0.0-20190320064053-1272bf9dcd53 // indirect golang.org/x/oauth2 v0.0.0-20190319182350-c85d3e98c914 // indirect golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect + gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect gopkg.in/inf.v0 v0.9.1 // indirect + gopkg.in/yaml.v2 v2.2.2 // indirect k8s.io/api v0.0.0-20190111032252-67edc246be36 k8s.io/apiextensions-apiserver v0.0.0-20190320070711-2af94a2a482f k8s.io/apimachinery v0.0.0-20190320104356-82cbdc1b6ac2 diff --git a/go.sum b/go.sum index 54da6f0..021a34f 100644 --- a/go.sum +++ b/go.sum @@ -1,155 +1,78 @@ -cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= cloud.google.com/go v0.34.0 h1:eOI3/cP2VTU6uZLDYAoic+eyzzB9YyGmJ7eIjl8rOPg= cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= -contrib.go.opencensus.io/exporter/ocagent v0.4.9 h1:8ZbMXpyd04/3LILa/9Tzr8N4HzZNj6Vb2xsaSuR4nQI= -contrib.go.opencensus.io/exporter/ocagent v0.4.9/go.mod h1:ueLzZcP7LPhPulEBukGn4aLh7Mx9YJwpVJ9nL2FYltw= -git.apache.org/thrift.git v0.12.0/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg= -github.com/Azure/go-autorest v11.5.2+incompatible h1:NTIEargbhAGNWuT7QEXJ2fqLMFvatupHIscb9FYwVOg= -github.com/Azure/go-autorest v11.5.2+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24= -github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= -github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo= -github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI= -github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc= -github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0= -github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ= -github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q= -github.com/census-instrumentation/opencensus-proto v0.2.0 h1:LzQXZOgg4CQfE6bFvXGM30YZL1WW/M337pXml+GrcZ4= 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github.com/evanphx/json-patch v4.1.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk= +github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I= github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo= -github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04= -github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as= -github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE= -github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY= -github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ= -github.com/gogo/protobuf v1.2.0/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ= github.com/gogo/protobuf v1.2.1 h1:/s5zKNz0uPFCZ5hddgPdo2TK2TVrUNMn0OOX8/aZMTE= github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4= -github.com/golang/glog 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h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw= gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= -honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= -honnef.co/go/tools v0.0.0-20180920025451-e3ad64cb4ed3/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= -honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= k8s.io/api v0.0.0-20190111032252-67edc246be36 h1:XrFGq/4TDgOxYOxtNROTyp2ASjHjBIITdk/+aJD+zyY= k8s.io/api v0.0.0-20190111032252-67edc246be36/go.mod h1:iuAfoD4hCxJ8Onx9kaTIt30j7jUFS00AXQi6QMi99vA= k8s.io/apiextensions-apiserver v0.0.0-20190320070711-2af94a2a482f h1:MfV9UCbLKKnh5kvAQguvvTfxwgSh/d522ecZf557Mic= diff --git a/internal/operator/constants.go b/internal/operator/constants.go index 6af6079..953efa1 100644 --- a/internal/operator/constants.go +++ b/internal/operator/constants.go @@ -17,12 +17,12 @@ import "time" const ( // Version is the version of the NATS Streaming Operator. - Version = "0.2.2" + Version = "0.3.0" // DefaultNATSStreamingImage is the default image // of NATS Streaming that will be used, meant to be // the latest release available. - DefaultNATSStreamingImage = "nats-streaming:0.12.2" + DefaultNATSStreamingImage = "nats-streaming:0.16.2" // DefaultNATSStreamingClusterSize is the default size // for the cluster. Clustering is done via Raft so diff --git a/internal/operator/controller.go b/internal/operator/controller.go index 1b40008..1322f64 100644 --- a/internal/operator/controller.go +++ b/internal/operator/controller.go @@ -305,7 +305,7 @@ func (c *Controller) reconcile(o *stanv1alpha1.NatsStreamingCluster) error { } else if n < 0 { log.Infof("Missing pods for '%s/%s' cluster (size=%d/%d), creating %d pods...", o.Namespace, o.Name, len(pods), o.Spec.Size, n*-1) - if o.Spec.StoreType == "SQL" { + if o.Spec.StoreType == "SQL" || (o.Spec.Config != nil && o.Spec.Config.FTGroup != "") { return c.createMissingPods(o, n*-1) } @@ -389,19 +389,29 @@ func stanContainerCmd(o *stanv1alpha1.NatsStreamingCluster, pod *k8scorev1.Pod) } else { storeArgs = []string{ "-store", "file", - fmt.Sprintf("--cluster_node_id=%q", pod.Name), } - // Disable clustering if using single instance. - if o.Spec.Size > 1 { + ftModeEnabled := o.Spec.Config != nil && o.Spec.Config.FTGroup != "" + isClustered := o.Spec.Config != nil && (o.Spec.Size > 1 || o.Spec.Config.Clustered) + + // Disable clustering if using single instance or FT mode. + if isClustered && !ftModeEnabled { storeArgs = append(storeArgs, "-clustered") + storeArgs = append(storeArgs, fmt.Sprintf("--cluster_node_id=%q", pod.Name)) } // Allow using a custom mount path which could be a persistent volume. if o.Spec.Config != nil && o.Spec.Config.StoreDir != "" { - storeArgs = append(storeArgs, "-dir", o.Spec.Config.StoreDir+"/"+pod.Name) - - if o.Spec.Size > 1 { + if ftModeEnabled { + // In case of FT mode then use the name of the first pod + // as the storage directory in order to make it possible + // to switch from clustered mode to fault tolerance mode. + name := fmt.Sprintf("%s-1", o.Name) + storeArgs = append(storeArgs, "-dir", o.Spec.Config.StoreDir+"/"+name) + storeArgs = append(storeArgs, fmt.Sprintf("--ft_group=%s", o.Spec.Config.FTGroup)) + } else { + // Using clustering. + storeArgs = append(storeArgs, "-dir", o.Spec.Config.StoreDir+"/"+pod.Name) storeArgs = append(storeArgs, "--cluster_log_path", o.Spec.Config.StoreDir+"/raft/"+pod.Name) } } else { diff --git a/pkg/apis/streaming/v1alpha1/types.go b/pkg/apis/streaming/v1alpha1/types.go index 19624b0..d47d8ac 100644 --- a/pkg/apis/streaming/v1alpha1/types.go +++ b/pkg/apis/streaming/v1alpha1/types.go @@ -1,4 +1,4 @@ -// Copyright 2018 The NATS Authors +// Copyright 2018-2019 The NATS 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 @@ -79,6 +79,12 @@ type ServerConfig struct { // StoreDir is the directory where the files will be persisted, // in case file system is backed by a persistent volume. StoreDir string `json:"storeDir"` + + // FTGroup enables the fault tolerance mode for the server. + FTGroup string `json:"ftGroup"` + + // Clustered enables explicitly in the cluster + Clustered bool `json:"clustered"` } type NatsStreamingClusterStatus struct { diff --git a/test/operator/basic_test.go b/test/operator/basic_test.go index 71287e1..c210794 100644 --- a/test/operator/basic_test.go +++ b/test/operator/basic_test.go @@ -283,10 +283,89 @@ func TestCreateWithCustomStoreDirTemplate(t *testing.T) { Namespace: "default", }, Spec: stanv1alpha1.NatsStreamingClusterSpec{ - Size: 1, + Size: 3, + NatsService: "example-nats", + Config: &stanv1alpha1.ServerConfig{ + StoreDir: "/my-store-dir", + Clustered: true, + }, + PodTemplate: &k8scorev1.PodTemplateSpec{ + Spec: k8scorev1.PodSpec{ + RestartPolicy: k8scorev1.RestartPolicyNever, + }, + }, + }, + } + _, err = kc.stan.StreamingV1alpha1().NatsStreamingClusters("default").Create(cluster) + if err != nil { + t.Fatal(err) + } + defer func() { + err := kc.stan.StreamingV1alpha1().NatsStreamingClusters("default").Delete(name, &k8smetav1.DeleteOptions{}) + if err != nil { + t.Error(err) + } + }() + + opts := k8smetav1.ListOptions{ + LabelSelector: k8slabels.SelectorFromSet(map[string]string{ + "app": "nats-streaming", + "stan_cluster": name, + }).String(), + } + + err = waitFor(ctx, func() error { + result, err := kc.core.Pods("default").List(opts) + if err != nil { + return err + } + for _, item := range result.Items { + got := strings.Join(item.Spec.Containers[0].Command, " ") + expected := `/nats-streaming-server -cluster_id stan-cluster-custom-store-dir-test -nats_server nats://example-nats:4222 -m 8222 -store file -clustered --cluster_node_id="stan-cluster-custom-store-dir-test-1" -dir /my-store-dir/stan-cluster-custom-store-dir-test-1 --cluster_log_path /my-store-dir/raft/stan-cluster-custom-store-dir-test-1 -cluster_bootstrap` + if got != expected { + return fmt.Errorf("Expected %s, got: %s", expected, got) + } + } + + got := len(result.Items) + if got < 1 { + return fmt.Errorf("Not enough pods, got: %v", got) + } + + return nil + }) + if err != nil { + t.Error(err) + } +} + +func TestCreateWithFTGroup(t *testing.T) { + kc, err := newKubeClients() + if err != nil { + t.Fatal(err) + } + controller := operator.NewController(nil) + ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second) + defer cancel() + + go controller.Run(ctx) + + name := "stan-cluster-ft-group" + cluster := &stanv1alpha1.NatsStreamingCluster{ + TypeMeta: k8smetav1.TypeMeta{ + Kind: "NatsStreamingCluster", + APIVersion: stanv1alpha1.SchemeGroupVersion.String(), + }, + ObjectMeta: k8smetav1.ObjectMeta{ + Name: name, + Namespace: "default", + }, + Spec: stanv1alpha1.NatsStreamingClusterSpec{ + Size: 3, NatsService: "example-nats", Config: &stanv1alpha1.ServerConfig{ StoreDir: "/my-store-dir", + FTGroup: "stan-ft", }, PodTemplate: &k8scorev1.PodTemplateSpec{ Spec: k8scorev1.PodSpec{ @@ -320,7 +399,7 @@ func TestCreateWithCustomStoreDirTemplate(t *testing.T) { } for _, item := range result.Items { got := strings.Join(item.Spec.Containers[0].Command, " ") - expected := `/nats-streaming-server -cluster_id stan-cluster-custom-store-dir-test -nats_server nats://example-nats:4222 -m 8222 -store file --cluster_node_id="stan-cluster-custom-store-dir-test-1" -dir /my-store-dir/stan-cluster-custom-store-dir-test-1` + expected := `/nats-streaming-server -cluster_id stan-cluster-ft-group -nats_server nats://example-nats:4222 -m 8222 -store file -dir /my-store-dir/stan-cluster-ft-group-1 --ft_group=stan-ft` if got != expected { return fmt.Errorf("Expected %s, got: %s", expected, got) }