4e7ea460e8
Skipping a failing one as I need to move to some other work and don't want to leave this work orphaned on my machine.
541 lines
16 KiB
Go
541 lines
16 KiB
Go
package allocrunner
|
|
|
|
import (
|
|
"fmt"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/hashicorp/consul/api"
|
|
"github.com/hashicorp/nomad/client/allochealth"
|
|
cconsul "github.com/hashicorp/nomad/client/consul"
|
|
"github.com/hashicorp/nomad/client/state"
|
|
"github.com/hashicorp/nomad/command/agent/consul"
|
|
"github.com/hashicorp/nomad/helper/uuid"
|
|
"github.com/hashicorp/nomad/nomad/mock"
|
|
"github.com/hashicorp/nomad/nomad/structs"
|
|
"github.com/hashicorp/nomad/testutil"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
// TestAllocRunner_AllocState_Initialized asserts that getting TaskStates via
|
|
// AllocState() are initialized even before the AllocRunner has run.
|
|
func TestAllocRunner_AllocState_Initialized(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
alloc := mock.Alloc()
|
|
alloc.Job.TaskGroups[0].Tasks[0].Driver = "mock_driver"
|
|
conf, cleanup := testAllocRunnerConfig(t, alloc)
|
|
defer cleanup()
|
|
|
|
ar, err := NewAllocRunner(conf)
|
|
require.NoError(t, err)
|
|
|
|
allocState := ar.AllocState()
|
|
|
|
require.NotNil(t, allocState)
|
|
require.NotNil(t, allocState.TaskStates[conf.Alloc.Job.TaskGroups[0].Tasks[0].Name])
|
|
}
|
|
|
|
// TestAllocRunner_TaskLeader_KillTG asserts that when a leader task dies the
|
|
// entire task group is killed.
|
|
func TestAllocRunner_TaskLeader_KillTG(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
alloc := mock.BatchAlloc()
|
|
tr := alloc.AllocatedResources.Tasks[alloc.Job.TaskGroups[0].Tasks[0].Name]
|
|
alloc.Job.TaskGroups[0].RestartPolicy.Attempts = 0
|
|
|
|
// Create two tasks in the task group
|
|
task := alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Name = "task1"
|
|
task.Driver = "mock_driver"
|
|
task.KillTimeout = 10 * time.Millisecond
|
|
task.Config = map[string]interface{}{
|
|
"run_for": "10s",
|
|
}
|
|
|
|
task2 := alloc.Job.TaskGroups[0].Tasks[0].Copy()
|
|
task2.Name = "task2"
|
|
task2.Driver = "mock_driver"
|
|
task2.Leader = true
|
|
task2.Config = map[string]interface{}{
|
|
"run_for": "1s",
|
|
}
|
|
alloc.Job.TaskGroups[0].Tasks = append(alloc.Job.TaskGroups[0].Tasks, task2)
|
|
alloc.AllocatedResources.Tasks[task.Name] = tr
|
|
alloc.AllocatedResources.Tasks[task2.Name] = tr
|
|
|
|
conf, cleanup := testAllocRunnerConfig(t, alloc)
|
|
defer cleanup()
|
|
ar, err := NewAllocRunner(conf)
|
|
require.NoError(t, err)
|
|
defer ar.Destroy()
|
|
go ar.Run()
|
|
|
|
// Wait for all tasks to be killed
|
|
upd := conf.StateUpdater.(*MockStateUpdater)
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
last := upd.Last()
|
|
if last == nil {
|
|
return false, fmt.Errorf("No updates")
|
|
}
|
|
if last.ClientStatus != structs.AllocClientStatusComplete {
|
|
return false, fmt.Errorf("got status %v; want %v", last.ClientStatus, structs.AllocClientStatusComplete)
|
|
}
|
|
|
|
// Task1 should be killed because Task2 exited
|
|
state1 := last.TaskStates[task.Name]
|
|
if state1.State != structs.TaskStateDead {
|
|
return false, fmt.Errorf("got state %v; want %v", state1.State, structs.TaskStateDead)
|
|
}
|
|
if state1.FinishedAt.IsZero() || state1.StartedAt.IsZero() {
|
|
return false, fmt.Errorf("expected to have a start and finish time")
|
|
}
|
|
if len(state1.Events) < 2 {
|
|
// At least have a received and destroyed
|
|
return false, fmt.Errorf("Unexpected number of events")
|
|
}
|
|
|
|
found := false
|
|
for _, e := range state1.Events {
|
|
if e.Type != structs.TaskLeaderDead {
|
|
found = true
|
|
}
|
|
}
|
|
|
|
if !found {
|
|
return false, fmt.Errorf("Did not find event %v", structs.TaskLeaderDead)
|
|
}
|
|
|
|
// Task Two should be dead
|
|
state2 := last.TaskStates[task2.Name]
|
|
if state2.State != structs.TaskStateDead {
|
|
return false, fmt.Errorf("got state %v; want %v", state2.State, structs.TaskStateDead)
|
|
}
|
|
if state2.FinishedAt.IsZero() || state2.StartedAt.IsZero() {
|
|
return false, fmt.Errorf("expected to have a start and finish time")
|
|
}
|
|
|
|
return true, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
}
|
|
|
|
// TestAllocRunner_TaskLeader_StopTG asserts that when stopping an alloc with a
|
|
// leader the leader is stopped before other tasks.
|
|
func TestAllocRunner_TaskLeader_StopTG(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
alloc := mock.Alloc()
|
|
tr := alloc.AllocatedResources.Tasks[alloc.Job.TaskGroups[0].Tasks[0].Name]
|
|
alloc.Job.TaskGroups[0].RestartPolicy.Attempts = 0
|
|
|
|
// Create 3 tasks in the task group
|
|
task := alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Name = "follower1"
|
|
task.Driver = "mock_driver"
|
|
task.Config = map[string]interface{}{
|
|
"run_for": "10s",
|
|
}
|
|
|
|
task2 := alloc.Job.TaskGroups[0].Tasks[0].Copy()
|
|
task2.Name = "leader"
|
|
task2.Driver = "mock_driver"
|
|
task2.Leader = true
|
|
task2.Config = map[string]interface{}{
|
|
"run_for": "10s",
|
|
}
|
|
|
|
task3 := alloc.Job.TaskGroups[0].Tasks[0].Copy()
|
|
task3.Name = "follower2"
|
|
task3.Driver = "mock_driver"
|
|
task3.Config = map[string]interface{}{
|
|
"run_for": "10s",
|
|
}
|
|
alloc.Job.TaskGroups[0].Tasks = append(alloc.Job.TaskGroups[0].Tasks, task2, task3)
|
|
alloc.AllocatedResources.Tasks[task.Name] = tr
|
|
alloc.AllocatedResources.Tasks[task2.Name] = tr
|
|
alloc.AllocatedResources.Tasks[task3.Name] = tr
|
|
|
|
conf, cleanup := testAllocRunnerConfig(t, alloc)
|
|
defer cleanup()
|
|
ar, err := NewAllocRunner(conf)
|
|
require.NoError(t, err)
|
|
defer ar.Destroy()
|
|
go ar.Run()
|
|
|
|
// Wait for tasks to start
|
|
upd := conf.StateUpdater.(*MockStateUpdater)
|
|
last := upd.Last()
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
last = upd.Last()
|
|
if last == nil {
|
|
return false, fmt.Errorf("No updates")
|
|
}
|
|
if n := len(last.TaskStates); n != 3 {
|
|
return false, fmt.Errorf("Not enough task states (want: 3; found %d)", n)
|
|
}
|
|
for name, state := range last.TaskStates {
|
|
if state.State != structs.TaskStateRunning {
|
|
return false, fmt.Errorf("Task %q is not running yet (it's %q)", name, state.State)
|
|
}
|
|
}
|
|
return true, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
|
|
// Reset updates
|
|
upd.Reset()
|
|
|
|
// Stop alloc
|
|
update := alloc.Copy()
|
|
update.DesiredStatus = structs.AllocDesiredStatusStop
|
|
ar.Update(update)
|
|
|
|
// Wait for tasks to stop
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
last := upd.Last()
|
|
if last == nil {
|
|
return false, fmt.Errorf("No updates")
|
|
}
|
|
if last.TaskStates["leader"].FinishedAt.UnixNano() >= last.TaskStates["follower1"].FinishedAt.UnixNano() {
|
|
return false, fmt.Errorf("expected leader to finish before follower1: %s >= %s",
|
|
last.TaskStates["leader"].FinishedAt, last.TaskStates["follower1"].FinishedAt)
|
|
}
|
|
if last.TaskStates["leader"].FinishedAt.UnixNano() >= last.TaskStates["follower2"].FinishedAt.UnixNano() {
|
|
return false, fmt.Errorf("expected leader to finish before follower2: %s >= %s",
|
|
last.TaskStates["leader"].FinishedAt, last.TaskStates["follower2"].FinishedAt)
|
|
}
|
|
return true, nil
|
|
}, func(err error) {
|
|
last := upd.Last()
|
|
for name, state := range last.TaskStates {
|
|
t.Logf("%s: %s", name, state.State)
|
|
}
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
}
|
|
|
|
// TestAllocRunner_TaskLeader_StopRestoredTG asserts that when stopping a
|
|
// restored task group with a leader that failed before restoring the leader is
|
|
// not stopped as it does not exist.
|
|
// See https://github.com/hashicorp/nomad/issues/3420#issuecomment-341666932
|
|
func TestAllocRunner_TaskLeader_StopRestoredTG(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
alloc := mock.Alloc()
|
|
tr := alloc.AllocatedResources.Tasks[alloc.Job.TaskGroups[0].Tasks[0].Name]
|
|
alloc.Job.TaskGroups[0].RestartPolicy.Attempts = 0
|
|
|
|
// Create a leader and follower task in the task group
|
|
task := alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Name = "follower1"
|
|
task.Driver = "mock_driver"
|
|
task.KillTimeout = 10 * time.Second
|
|
task.Config = map[string]interface{}{
|
|
"run_for": "10s",
|
|
}
|
|
|
|
task2 := alloc.Job.TaskGroups[0].Tasks[0].Copy()
|
|
task2.Name = "leader"
|
|
task2.Driver = "mock_driver"
|
|
task2.Leader = true
|
|
task2.KillTimeout = 10 * time.Millisecond
|
|
task2.Config = map[string]interface{}{
|
|
"run_for": "10s",
|
|
}
|
|
|
|
alloc.Job.TaskGroups[0].Tasks = append(alloc.Job.TaskGroups[0].Tasks, task2)
|
|
alloc.AllocatedResources.Tasks[task.Name] = tr
|
|
alloc.AllocatedResources.Tasks[task2.Name] = tr
|
|
|
|
conf, cleanup := testAllocRunnerConfig(t, alloc)
|
|
defer cleanup()
|
|
|
|
// Use a memory backed statedb
|
|
conf.StateDB = state.NewMemDB()
|
|
|
|
ar, err := NewAllocRunner(conf)
|
|
require.NoError(t, err)
|
|
|
|
// Mimic Nomad exiting before the leader stopping is able to stop other tasks.
|
|
ar.tasks["leader"].UpdateState(structs.TaskStateDead, structs.NewTaskEvent(structs.TaskKilled))
|
|
ar.tasks["follower1"].UpdateState(structs.TaskStateRunning, structs.NewTaskEvent(structs.TaskStarted))
|
|
|
|
// Create a new AllocRunner to test RestoreState and Run
|
|
ar2, err := NewAllocRunner(conf)
|
|
require.NoError(t, err)
|
|
defer ar2.Destroy()
|
|
|
|
if err := ar2.Restore(); err != nil {
|
|
t.Fatalf("error restoring state: %v", err)
|
|
}
|
|
ar2.Run()
|
|
|
|
// Wait for tasks to be stopped because leader is dead
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
alloc := ar2.Alloc()
|
|
for task, state := range alloc.TaskStates {
|
|
if state.State != structs.TaskStateDead {
|
|
return false, fmt.Errorf("Task %q should be dead: %v", task, state.State)
|
|
}
|
|
}
|
|
return true, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
|
|
// Make sure it GCs properly
|
|
ar2.Destroy()
|
|
|
|
select {
|
|
case <-ar2.DestroyCh():
|
|
// exited as expected
|
|
case <-time.After(10 * time.Second):
|
|
t.Fatalf("timed out waiting for AR to GC")
|
|
}
|
|
}
|
|
|
|
func TestAllocRunner_Update_Semantics(t *testing.T) {
|
|
t.Parallel()
|
|
require := require.New(t)
|
|
|
|
updatedAlloc := func(a *structs.Allocation) *structs.Allocation {
|
|
upd := a.CopySkipJob()
|
|
upd.AllocModifyIndex++
|
|
|
|
return upd
|
|
}
|
|
|
|
alloc := mock.Alloc()
|
|
alloc.Job.TaskGroups[0].Tasks[0].Driver = "mock_driver"
|
|
conf, cleanup := testAllocRunnerConfig(t, alloc)
|
|
defer cleanup()
|
|
|
|
ar, err := NewAllocRunner(conf)
|
|
require.NoError(err)
|
|
|
|
upd1 := updatedAlloc(alloc)
|
|
ar.Update(upd1)
|
|
|
|
// Update was placed into a queue
|
|
require.Len(ar.allocUpdatedCh, 1)
|
|
|
|
upd2 := updatedAlloc(alloc)
|
|
ar.Update(upd2)
|
|
|
|
// Allocation was _replaced_
|
|
|
|
require.Len(ar.allocUpdatedCh, 1)
|
|
queuedAlloc := <-ar.allocUpdatedCh
|
|
require.Equal(upd2, queuedAlloc)
|
|
|
|
// Requeueing older alloc is skipped
|
|
ar.Update(upd2)
|
|
ar.Update(upd1)
|
|
|
|
queuedAlloc = <-ar.allocUpdatedCh
|
|
require.Equal(upd2, queuedAlloc)
|
|
|
|
// Ignore after watch closed
|
|
|
|
close(ar.waitCh)
|
|
|
|
ar.Update(upd1)
|
|
|
|
// Did not queue the update
|
|
require.Len(ar.allocUpdatedCh, 0)
|
|
}
|
|
|
|
// TestAllocRunner_DeploymentHealth_Healthy_Migration asserts that health is
|
|
// reported for services that got migrated; not just part of deployments.
|
|
func TestAllocRunner_DeploymentHealth_Healthy_Migration(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
alloc := mock.Alloc()
|
|
|
|
// Ensure the alloc is *not* part of a deployment
|
|
alloc.DeploymentID = ""
|
|
|
|
// Shorten the default migration healthy time
|
|
tg := alloc.Job.TaskGroups[0]
|
|
tg.Migrate = structs.DefaultMigrateStrategy()
|
|
tg.Migrate.MinHealthyTime = 100 * time.Millisecond
|
|
tg.Migrate.HealthCheck = structs.MigrateStrategyHealthStates
|
|
|
|
task := tg.Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.Config = map[string]interface{}{
|
|
"run_for": "30s",
|
|
}
|
|
|
|
conf, cleanup := testAllocRunnerConfig(t, alloc)
|
|
defer cleanup()
|
|
|
|
ar, err := NewAllocRunner(conf)
|
|
require.NoError(t, err)
|
|
go ar.Run()
|
|
defer ar.Destroy()
|
|
|
|
upd := conf.StateUpdater.(*MockStateUpdater)
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
last := upd.Last()
|
|
if last == nil {
|
|
return false, fmt.Errorf("No updates")
|
|
}
|
|
if !last.DeploymentStatus.HasHealth() {
|
|
return false, fmt.Errorf("want deployment status unhealthy; got unset")
|
|
} else if !*last.DeploymentStatus.Healthy {
|
|
// This is fatal
|
|
t.Fatal("want deployment status healthy; got unhealthy")
|
|
}
|
|
return true, nil
|
|
}, func(err error) {
|
|
require.NoError(t, err)
|
|
})
|
|
}
|
|
|
|
// TestAllocRunner_DeploymentHealth_Healthy_NoChecks asserts that the health
|
|
// watcher will mark the allocation as healthy based on task states alone.
|
|
func TestAllocRunner_DeploymentHealth_Healthy_NoChecks(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
alloc := mock.Alloc()
|
|
|
|
task := alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.Config = map[string]interface{}{
|
|
"run_for": "10s",
|
|
}
|
|
|
|
// Create a task that takes longer to become healthy
|
|
alloc.Job.TaskGroups[0].Tasks = append(alloc.Job.TaskGroups[0].Tasks, task.Copy())
|
|
alloc.AllocatedResources.Tasks["task2"] = alloc.AllocatedResources.Tasks["web"].Copy()
|
|
task2 := alloc.Job.TaskGroups[0].Tasks[1]
|
|
task2.Name = "task2"
|
|
task2.Config["start_block_for"] = "500ms"
|
|
|
|
// Make the alloc be part of a deployment that uses task states for
|
|
// health checks
|
|
alloc.DeploymentID = uuid.Generate()
|
|
alloc.Job.TaskGroups[0].Update = structs.DefaultUpdateStrategy.Copy()
|
|
alloc.Job.TaskGroups[0].Update.HealthCheck = structs.UpdateStrategyHealthCheck_TaskStates
|
|
alloc.Job.TaskGroups[0].Update.MaxParallel = 1
|
|
alloc.Job.TaskGroups[0].Update.MinHealthyTime = 100 * time.Millisecond
|
|
|
|
conf, cleanup := testAllocRunnerConfig(t, alloc)
|
|
defer cleanup()
|
|
|
|
ar, err := NewAllocRunner(conf)
|
|
require.NoError(t, err)
|
|
|
|
start, done := time.Now(), time.Time{}
|
|
go ar.Run()
|
|
defer ar.Destroy()
|
|
|
|
upd := conf.StateUpdater.(*MockStateUpdater)
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
last := upd.Last()
|
|
if last == nil {
|
|
return false, fmt.Errorf("No updates")
|
|
}
|
|
if !last.DeploymentStatus.HasHealth() {
|
|
return false, fmt.Errorf("want deployment status unhealthy; got unset")
|
|
} else if !*last.DeploymentStatus.Healthy {
|
|
// This is fatal
|
|
t.Fatal("want deployment status healthy; got unhealthy")
|
|
}
|
|
|
|
// Capture the done timestamp
|
|
done = last.DeploymentStatus.Timestamp
|
|
return true, nil
|
|
}, func(err error) {
|
|
require.NoError(t, err)
|
|
})
|
|
|
|
if d := done.Sub(start); d < 500*time.Millisecond {
|
|
t.Fatalf("didn't wait for second task group. Only took %v", d)
|
|
}
|
|
}
|
|
|
|
// TestAllocRunner_DeploymentHealth_Unhealthy_Checks asserts that the health
|
|
// watcher will mark the allocation as unhealthy with failing checks.
|
|
func TestAllocRunner_DeploymentHealth_Unhealthy_Checks(t *testing.T) {
|
|
t.Skip("FIXME(schmichael): fails and needs fixing")
|
|
t.Parallel()
|
|
|
|
alloc := mock.Alloc()
|
|
task := alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.Config = map[string]interface{}{
|
|
"run_for": "10s",
|
|
}
|
|
|
|
// Make the alloc be part of a deployment
|
|
alloc.DeploymentID = uuid.Generate()
|
|
alloc.Job.TaskGroups[0].Update = structs.DefaultUpdateStrategy.Copy()
|
|
alloc.Job.TaskGroups[0].Update.HealthCheck = structs.UpdateStrategyHealthCheck_Checks
|
|
alloc.Job.TaskGroups[0].Update.MaxParallel = 1
|
|
alloc.Job.TaskGroups[0].Update.MinHealthyTime = 100 * time.Millisecond
|
|
alloc.Job.TaskGroups[0].Update.HealthyDeadline = 1 * time.Second
|
|
|
|
checkUnhealthy := &api.AgentCheck{
|
|
CheckID: uuid.Generate(),
|
|
Status: api.HealthWarning,
|
|
}
|
|
|
|
conf, cleanup := testAllocRunnerConfig(t, alloc)
|
|
defer cleanup()
|
|
|
|
// Only return the check as healthy after a duration
|
|
consulClient := conf.Consul.(*cconsul.MockConsulServiceClient)
|
|
consulClient.AllocRegistrationsFn = func(allocID string) (*consul.AllocRegistration, error) {
|
|
return &consul.AllocRegistration{
|
|
Tasks: map[string]*consul.TaskRegistration{
|
|
task.Name: {
|
|
Services: map[string]*consul.ServiceRegistration{
|
|
"123": {
|
|
Service: &api.AgentService{Service: "foo"},
|
|
Checks: []*api.AgentCheck{checkUnhealthy},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}, nil
|
|
}
|
|
|
|
ar, err := NewAllocRunner(conf)
|
|
require.NoError(t, err)
|
|
go ar.Run()
|
|
defer ar.Destroy()
|
|
|
|
var lastUpdate *structs.Allocation
|
|
upd := conf.StateUpdater.(*MockStateUpdater)
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
lastUpdate = upd.Last()
|
|
if lastUpdate == nil {
|
|
return false, fmt.Errorf("No updates")
|
|
}
|
|
if !lastUpdate.DeploymentStatus.HasHealth() {
|
|
return false, fmt.Errorf("want deployment status unhealthy; got unset")
|
|
} else if *lastUpdate.DeploymentStatus.Healthy {
|
|
// This is fatal
|
|
t.Fatal("want deployment status unhealthy; got healthy")
|
|
}
|
|
return true, nil
|
|
}, func(err error) {
|
|
require.NoError(t, err)
|
|
})
|
|
|
|
// Assert that we have an event explaining why we are unhealthy.
|
|
require.Len(t, lastUpdate.TaskStates, 1)
|
|
state := lastUpdate.TaskStates[task.Name]
|
|
require.NotNil(t, state)
|
|
require.NotEmpty(t, state.Events)
|
|
last := state.Events[len(state.Events)-1]
|
|
require.Equal(t, allochealth.AllocHealthEventSource, last.Type)
|
|
require.Contains(t, last.Message, "Services not healthy by deadline")
|
|
}
|