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Dynamic Server Lists/Client Bootstrapping #1201

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Jun 11, 2016
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a1cb3f1
Use consul/lib's RateScaledInterval
sean- May 3, 2016
7db2eb0
Use consul/lib's RandomStagger
sean- May 3, 2016
2d23927
Use `rand.Int*n()` where appropriate
sean- May 3, 2016
2846614
Fix small typo
sean- May 3, 2016
3f9d385
Seed random once in main
sean- May 3, 2016
4030e38
Use the correctly typed `rand.Int*` variant
sean- May 3, 2016
0e1bdad
Rename consul.ConsulConfig to consul.AgentConfig
sean- May 21, 2016
4fed6b0
Rename client/config/config's ConsulConfig to ConsulAgentConfig
sean- May 21, 2016
1f7bfb3
Rename consulConfig to consulAgentConfig
sean- May 21, 2016
8e25647
Rename ConsulConfig to ConsulAgentConfig
sean- May 21, 2016
af72200
Distill config.Config.ConsulConfig down to config.Config.Consul
sean- May 22, 2016
7bf6af8
Fix copy pasta comment.
sean- May 22, 2016
092e07f
Create a `nomad/structs/config` to break an import cycle.
sean- May 22, 2016
d84d718
Rename client/consul/sync.ConsulService to client/consul/sync.Syncer
sean- May 22, 2016
f280c59
Rename client/consul/sync.PeriodicSync to Run
sean- May 23, 2016
7c6ad53
Rename NewConsulService to NewSyncer
sean- May 23, 2016
ffcd233
Rebalance Nomad client RPCs among different Nomad servers.
sean- May 23, 2016
f6e3587
Define a type for the PeriodicCallback handlers and ShutdownChannel
sean- May 24, 2016
d268dcb
Reduce all forms of ConsulConfig down to a single struct
sean- May 24, 2016
e07e77b
s/availble/runChecks/g
sean- May 24, 2016
8da18b6
Alpha sort config keys for Consul
sean- May 24, 2016
89d48c8
Revise Agent.syncAgentServicesWithConsul()'s interface
sean- May 24, 2016
c159e77
An Agent's consulSyncer is always not nil now.
sean- May 24, 2016
17927c8
Only poll Consul for servers when Nomad heartbeats begin to fail
sean- May 24, 2016
4e4f0a1
Remove unused code
sean- May 24, 2016
fc56585
index on f-dyn-server-list: bd38cb4 Remove unused code
sean- May 24, 2016
05bbbd2
Reconcile renamed structures during rebase
sean- May 24, 2016
90023c3
Rename RpcProxy's internal filename to match
sean- May 24, 2016
681a7d6
Remove testing for an API that doesn't exist any more.
sean- May 24, 2016
7125b85
Correct a mismerge
sean- May 26, 2016
71dde1b
Reconcile consul's address configuration section.
sean- May 26, 2016
bc94ce8
Rename `mergedNomadMap` to `mergedPrimaryMap`. Gratuitous, but more c…
sean- May 26, 2016
e6397da
Centralize the creation of a consul/api.Config struct.
sean- May 26, 2016
990a094
Use `rand.Int*n()` where appropriate
sean- May 3, 2016
07fa0c5
Use the correctly typed `rand.Int*` variant
sean- May 3, 2016
5e0d76f
Rename client/config/config's ConsulConfig to ConsulAgentConfig
sean- May 21, 2016
4d30c98
Rename consulConfig to consulAgentConfig
sean- May 21, 2016
6fae3db
Rename ConsulConfig to ConsulAgentConfig
sean- May 21, 2016
16b4e5c
Rebalance Nomad client RPCs among different Nomad servers.
sean- May 23, 2016
1fa43a0
Reduce all forms of ConsulConfig down to a single struct
sean- May 24, 2016
3728771
Remove unused code
sean- May 24, 2016
a703c8a
Rename RpcProxy's internal filename to match
sean- May 24, 2016
22bd2b5
Rename manager_test.go to rpc_proxy_test.go
sean- May 26, 2016
7cdf0ed
Rename the package from `client/rpc_proxy` to `client/rpcproxy`
sean- May 26, 2016
0a5fa55
Fix package name in comments
sean- May 27, 2016
cbed88a
Move struct member to reduce diff context
sean- May 27, 2016
1e3feae
Bump shuffle interval per suggestion from Alex
sean- May 27, 2016
1034e76
s/RpcVersion/RPCVersion/g
sean- May 27, 2016
916d93c
Bump the cluster test minimums to 10min.
sean- May 27, 2016
b293cf3
Fix typo in the comment to reflect the actual function name.
sean- May 27, 2016
ce8c03d
Advertise the server's RPC endpoint, not its HTTP endpoint.
sean- May 27, 2016
bc86e89
Register two services each for clients and servers, http and rpc.
sean- May 27, 2016
4d47eed
Teach Client to reuse an Agent's consulSyncer.
sean- May 27, 2016
9a93496
Consolidate all consul sync periodic go routines to handlers.
sean- May 27, 2016
bccf131
Invert check definition so the error is first
sean- May 27, 2016
2abd37c
Silence unused variable warning
sean- May 27, 2016
7034c50
Pass the datacenter name in the heartbeat
sean- May 27, 2016
57bb374
Fix unit tests
sean- May 27, 2016
3d22c22
Remove types.ShutdownChannel and replace with `chan struct{}`
sean- May 27, 2016
49266fa
Invert error handling logic
sean- May 27, 2016
9bd2882
Nuke trace-level logging in heartbeats
sean- May 27, 2016
ca0f2d9
Nuke a.consulConfig in favor of a.consul.Config
sean- May 27, 2016
9998573
Clear the backup server list when a Nomad heartbeat arives with servers
sean- May 27, 2016
bf4f031
Remove unused function.
sean- May 27, 2016
8a393d7
Improve language re: fingerprinting
sean- May 27, 2016
90f7eb4
When clearing the backup servers, set the length to zero.
sean- May 27, 2016
6cdc055
Change the constants used to match the struct definitions
sean- May 27, 2016
d6769f5
Create a weak decoder to parse time.Duration.
sean- May 27, 2016
6b8a9b4
Update the `nomad_server_service` default from `nomad-server` to just…
sean- May 27, 2016
b235759
Register the serf service with the Nomad server service.
sean- May 27, 2016
ab99e89
Reconcile, clean up, and centralize API version numbers (major and mi…
sean- May 28, 2016
6264a8e
Unused code wasn't as unused as I thought. Restore.
sean- May 28, 2016
c8bf53b
Fix a comment to be more correct
sean- May 28, 2016
b9f230b
Move client.DefaultConfig() to client/config.DefaultConfig()
sean- May 31, 2016
6785e76
Provide a default ConsulConfig for client/config.DefaultConfig()
sean- May 31, 2016
ed30876
Change the endpoint for `/v1/agent/servers` and fix tests.
sean- Jun 1, 2016
5b0a969
Fix the client/rpcproxy unit tests.
sean- Jun 1, 2016
a553956
Fix tests for client.TestAgent_ServerConfig
sean- Jun 1, 2016
37e7038
Fix config_parse_test to reflect that `consul.addr` does not exist.
sean- Jun 1, 2016
f037658
Add some trace-level logging for /v1/agent/servers when writing
sean- Jun 1, 2016
ac174db
Fix building tests that used `DefaultConfig()` but didn't pickup the …
sean- Jun 1, 2016
6908846
Add a quick set of client/rpcproxy.ServerEndpoint equality tests
sean- Jun 1, 2016
453a755
Pick the right `DefaultConfig` from the right package.
sean- Jun 1, 2016
f9862d4
Update godoc for newServer to reflect DNS and IP-based inputs
sean- Jun 1, 2016
329057e
Only actively test Consul when env `CONSUL_HTTP_ADDR` is set
sean- Jun 1, 2016
503c6a9
Fix test TestClientConfigCommand_UpdateServers()
sean- Jun 1, 2016
445386b
Remove unused constants
sean- Jun 1, 2016
41904f2
Clean up some docs and comments to be more accurate
sean- Jun 1, 2016
4300cb3
Remove unused variable
sean- Jun 1, 2016
ab434b4
Fix typo in comment
sean- Jun 1, 2016
66dc946
Don't clobber the default consul config in tests
sean- Jun 1, 2016
7538667
Push down the server list even on node registration and evaluation
sean- Jun 1, 2016
f15d84e
Use a monotonically incrementing number to create unique node names.
sean- Jun 1, 2016
73c1560
Rename `backupServerDeadline` to `consulPullHeartbeatDeadline`
sean- Jun 1, 2016
07799b6
Nuke the last of the explicit types in favor of using language idioms
sean- Jun 1, 2016
9de9634
Clean up various comments
sean- Jun 2, 2016
c8b2f7c
Flesh out the comment re: the client.rpcproxy.Run() task.
sean- Jun 2, 2016
8dd833f
Use the client configCopy and lock appropriately.
sean- Jun 2, 2016
8d478b9
Make the locking protocol more explicit in client.NewClient
sean- Jun 2, 2016
f0c6b70
Fix up the comments
sean- Jun 2, 2016
1ec5374
Rename rpcproxy.UpdateFromNodeUpdateResponse to RefreshServerLists
sean- Jun 2, 2016
cf052e5
Line wrap long line.
sean- Jun 2, 2016
8bbd763
Use client.getAllocRunners() where appropriate.
sean- Jun 2, 2016
998f285
Ensure that all accesses to Client.alloc are wrapped by allocLock.
sean- Jun 2, 2016
86b5d31
Move `const` block to the top of the file.
sean- Jun 2, 2016
bbf7348
Bump the default Consul client timeout from 500ms to 5s.
sean- Jun 2, 2016
273e8cf
Collapse rpcproxy_internal_test.go into rpcproxy_test.go
sean- Jun 2, 2016
68f7afc
Collapse server_endpoint_internal_test.go into server_endpoint_test.go
sean- Jun 2, 2016
4e03dc5
Remove named return parameters
sean- Jun 2, 2016
1352f7f
Change client/consul.NewSyncer() to accept a shutdown channel
sean- Jun 2, 2016
107fc1b
Rename createCheck() to createDelegatedCheck() for clarity
sean- Jun 7, 2016
acb3d58
Refine Nomad's Consul `port` handling.
sean- Jun 7, 2016
a208115
Rename structs.Services to structs.ConsulServices
sean- Jun 7, 2016
cf8beb7
Change the signature of the PeriodicCallback to return an error
sean- Jun 7, 2016
74e691c
Change the API signature of Syncer.SyncServices().
sean- Jun 7, 2016
e858928
Rename Syncer.SetServiceIdentifier to SetServiceRegPrefix()
sean- Jun 7, 2016
57c2c81
Move package client/consul/sync to command/agent/consul.
sean- Jun 8, 2016
b6a2ec2
Remove Syncer.registerService()
sean- Jun 8, 2016
54838b9
Rename structs.Task's `Service` attribute to `ConsulService`
sean- Jun 8, 2016
3052e74
Move the start of the UniversalExecutor's consulSyncer to initialize …
sean- Jun 8, 2016
7ad5cd5
Begin leveraging the Agent-level consul.Syncer
sean- Jun 8, 2016
802a8c4
Rename command/agent/consul/sync.go to syncer.go
sean- Jun 8, 2016
3e95ca6
Per-comment, remove structs.Allocation's Services attribute.
sean- Jun 9, 2016
a4f605a
Initialize Consul for the Nomad Agent in a more uniform way.
sean- Jun 10, 2016
8be79cf
Add "Service Groups" to the Syncer.
sean- Jun 10, 2016
d87c697
Update Syncer.Run() to call SyncServices().
sean- Jun 10, 2016
5913acf
Rename runChecks to consulAvailable
sean- Jun 10, 2016
d1ab21f
Generate and sync Consul ServiceIDs consistently
sean- Jun 10, 2016
d2dcf27
Populate the RPC Proxy's server list if heartbeat did not include a l…
sean- Jun 10, 2016
19f765e
Sync services with Consul by comparing the AgentServiceReg w/ ConsulS…
sean- Jun 10, 2016
7d060c2
Sync checks with Consul by comparing the AgentCheckReg w/ ConsulService
sean- Jun 10, 2016
9b984d0
Update the structure of ConsulService to match reality.
sean- Jun 10, 2016
27f6ffd
On Syncer Shutdown, remove all services that match a Syncer's prefix.
sean- Jun 10, 2016
d810590
Create a consulContext using a client's consul config.
sean- Jun 10, 2016
f7b2949
Properly cover Syncer attributes with the registryLock.
sean- Jun 10, 2016
05e713c
Skip nil check for agent's consulSyncer is always not nil
sean- Jun 10, 2016
69aa8e8
Don't spam the consul if Consul is not available.
sean- Jun 10, 2016
c426b85
Hand wave over the syncer tests atm, these will be fixed shortly.
sean- Jun 10, 2016
8f83c2e
Move RPCProxy.New() adjacent to its struct definition
sean- Jun 10, 2016
4b5310e
Properly guard consulPullHeartbeatDeadline behind heartbeatLock
sean- Jun 10, 2016
5757e50
Only return the Client's server addresses, never mix-in server peers
sean- Jun 10, 2016
a423f07
Stash client and server registration behind consul.auto_register
sean- Jun 10, 2016
a55d3f1
Rename `updateNodeUpdateResponse` to `constructNodeServerInfoResponse`
sean- Jun 10, 2016
8c8f33d
Always pass in a snapshot before calling constructNodeServerInfoRespo…
sean- Jun 10, 2016
b57f7c9
Style nit: remove `var` block
sean- Jun 10, 2016
709b6bd
Fold RaftPeers() into its only call site now
sean- Jun 10, 2016
a7047bb
Prefix all log entries in client/rpcproxy with client.rpcproxy
sean- Jun 10, 2016
f07c910
Formatting nit: remove brackets
sean- Jun 10, 2016
dbdebca
golint(1) police
sean- Jun 10, 2016
ecd84f4
Nomad does not use Serf at the client level. Use a hard lock.
sean- Jun 10, 2016
83e3df0
Rename listLock to activatedListLock
sean- Jun 10, 2016
2ac7ecb
Remove useless statement
sean- Jun 10, 2016
61a36a6
Commit miss, bump to 5s
sean- Jun 10, 2016
aff951c
Always create a consul.Syncer. Use a default Consul Config if necessary.
sean- Jun 10, 2016
91582dc
Always create a consul.Syncer. Use a default Consul Config if necessary.
sean- Jun 10, 2016
a0902c3
Prevent duplicate servers being added in AddPrimaryServer.
sean- Jun 10, 2016
4e543b6
Restore old behavior and have AddPrimaryServer() return a pointer to …
sean- Jun 10, 2016
4826728
Fix another unit test not expecting ServiceID
sean- Jun 10, 2016
5ffd970
Expose rpcproxy's `ServerEndpoint()` constructor, `newServer()` as `N…
sean- Jun 11, 2016
6819f2b
Query for the Nomad service across multiple Consul datacenters.
sean- Jun 11, 2016
5331ea7
goling(1) compliance pass (e.g. Rpc* -> RPC)
sean- Jun 11, 2016
2879c33
Perform a nil-check for Executor's consulServices.
sean- Jun 11, 2016
183b51d
Remove default values and use nil for the executor. Much better.
sean- Jun 11, 2016
a8b53b0
Prefer `%+q` over `%q` in log messages.
sean- Jun 11, 2016
8d0b798
Walk the DCs from nearest to most remote, no limit on the search.
sean- Jun 11, 2016
006d1a3
Walk the DCs from nearest to most remote.
sean- Jun 11, 2016
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33 changes: 0 additions & 33 deletions api/agent_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -124,39 +124,6 @@ func TestAgent_ForceLeave(t *testing.T) {
// TODO: test force-leave on an existing node
}

func TestAgent_SetServers(t *testing.T) {
c, s := makeClient(t, nil, func(c *testutil.TestServerConfig) {
c.Client.Enabled = true
c.Server.BootstrapExpect = 0
})
defer s.Stop()
a := c.Agent()

// Attempting to set an empty list errors
err := a.SetServers([]string{})
if err == nil {
t.Fatalf("expected error, got nothing")
}

// Setting a valid list works
err = a.SetServers([]string{"foo", "bar"})
if err != nil {
t.Fatalf("err: %s", err)
}

// Returns the proper list of servers
out, err := a.Servers()
if err != nil {
t.Fatalf("err: %s", err)
}
if n := len(out); n != 2 {
t.Fatalf("expected 2 servers, got: %d", n)
}
if out[0] != "foo:4647" || out[1] != "bar:4647" {
t.Fatalf("bad server list: %v", out)
}
}

func (a *AgentMember) String() string {
return "{Name: " + a.Name + " Region: " + a.Tags["region"] + " DC: " + a.Tags["dc"] + "}"
}
Expand Down
3 changes: 1 addition & 2 deletions api/nodes_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,7 @@ func TestNodes_PrefixList(t *testing.T) {
var err error

// Get the node ID
var nodeID, dc string
var nodeID string
testutil.WaitForResult(func() (bool, error) {
out, _, err := nodes.List(nil)
if err != nil {
Expand All @@ -60,7 +60,6 @@ func TestNodes_PrefixList(t *testing.T) {
return false, fmt.Errorf("expected 1 node, got: %d", n)
}
nodeID = out[0].ID
dc = out[0].Datacenter
return true, nil
}, func(err error) {
t.Fatalf("err: %s", err)
Expand Down
3 changes: 2 additions & 1 deletion client/alloc_runner_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@ import (
"github.com/hashicorp/nomad/nomad/structs"
"github.com/hashicorp/nomad/testutil"

"github.com/hashicorp/nomad/client/config"
ctestutil "github.com/hashicorp/nomad/client/testutil"
)

Expand All @@ -25,7 +26,7 @@ func (m *MockAllocStateUpdater) Update(alloc *structs.Allocation) {

func testAllocRunner(restarts bool) (*MockAllocStateUpdater, *AllocRunner) {
logger := testLogger()
conf := DefaultConfig()
conf := config.DefaultConfig()
conf.StateDir = os.TempDir()
conf.AllocDir = os.TempDir()
upd := &MockAllocStateUpdater{}
Expand Down
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