1228 lines
36 KiB
Go
1228 lines
36 KiB
Go
package allocrunner
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"testing"
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"time"
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"github.com/hashicorp/consul/api"
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"github.com/hashicorp/nomad/client/allochealth"
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"github.com/hashicorp/nomad/client/allocwatcher"
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cconsul "github.com/hashicorp/nomad/client/consul"
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"github.com/hashicorp/nomad/client/state"
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"github.com/hashicorp/nomad/command/agent/consul"
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"github.com/hashicorp/nomad/helper/uuid"
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"github.com/hashicorp/nomad/nomad/mock"
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"github.com/hashicorp/nomad/nomad/structs"
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"github.com/hashicorp/nomad/testutil"
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"github.com/stretchr/testify/require"
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)
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// destroy does a blocking destroy on an alloc runner
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func destroy(ar *allocRunner) {
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ar.Destroy()
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<-ar.DestroyCh()
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}
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// TestAllocRunner_AllocState_Initialized asserts that getting TaskStates via
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// AllocState() are initialized even before the AllocRunner has run.
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func TestAllocRunner_AllocState_Initialized(t *testing.T) {
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t.Parallel()
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alloc := mock.Alloc()
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alloc.Job.TaskGroups[0].Tasks[0].Driver = "mock_driver"
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conf, cleanup := testAllocRunnerConfig(t, alloc)
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defer cleanup()
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ar, err := NewAllocRunner(conf)
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require.NoError(t, err)
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allocState := ar.AllocState()
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require.NotNil(t, allocState)
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require.NotNil(t, allocState.TaskStates[conf.Alloc.Job.TaskGroups[0].Tasks[0].Name])
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}
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// TestAllocRunner_TaskLeader_KillTG asserts that when a leader task dies the
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// entire task group is killed.
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func TestAllocRunner_TaskLeader_KillTG(t *testing.T) {
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t.Parallel()
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alloc := mock.BatchAlloc()
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tr := alloc.AllocatedResources.Tasks[alloc.Job.TaskGroups[0].Tasks[0].Name]
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alloc.Job.TaskGroups[0].RestartPolicy.Attempts = 0
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// Create two tasks in the task group
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task := alloc.Job.TaskGroups[0].Tasks[0]
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task.Name = "task1"
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task.Driver = "mock_driver"
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task.KillTimeout = 10 * time.Millisecond
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task.Config = map[string]interface{}{
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"run_for": "10s",
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}
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task2 := alloc.Job.TaskGroups[0].Tasks[0].Copy()
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task2.Name = "task2"
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task2.Driver = "mock_driver"
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task2.Leader = true
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task2.Config = map[string]interface{}{
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"run_for": "1s",
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}
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alloc.Job.TaskGroups[0].Tasks = append(alloc.Job.TaskGroups[0].Tasks, task2)
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alloc.AllocatedResources.Tasks[task.Name] = tr
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alloc.AllocatedResources.Tasks[task2.Name] = tr
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conf, cleanup := testAllocRunnerConfig(t, alloc)
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defer cleanup()
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ar, err := NewAllocRunner(conf)
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require.NoError(t, err)
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defer destroy(ar)
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go ar.Run()
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// Wait for all tasks to be killed
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upd := conf.StateUpdater.(*MockStateUpdater)
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testutil.WaitForResult(func() (bool, error) {
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last := upd.Last()
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if last == nil {
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return false, fmt.Errorf("No updates")
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}
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if last.ClientStatus != structs.AllocClientStatusComplete {
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return false, fmt.Errorf("got status %v; want %v", last.ClientStatus, structs.AllocClientStatusComplete)
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}
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// Task1 should be killed because Task2 exited
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state1 := last.TaskStates[task.Name]
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if state1.State != structs.TaskStateDead {
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return false, fmt.Errorf("got state %v; want %v", state1.State, structs.TaskStateDead)
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}
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if state1.FinishedAt.IsZero() || state1.StartedAt.IsZero() {
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return false, fmt.Errorf("expected to have a start and finish time")
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}
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if len(state1.Events) < 2 {
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// At least have a received and destroyed
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return false, fmt.Errorf("Unexpected number of events")
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}
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found := false
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killingMsg := ""
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for _, e := range state1.Events {
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if e.Type != structs.TaskLeaderDead {
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found = true
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}
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if e.Type == structs.TaskKilling {
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killingMsg = e.DisplayMessage
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}
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}
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if !found {
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return false, fmt.Errorf("Did not find event %v", structs.TaskLeaderDead)
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}
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expectedKillingMsg := "Sent interrupt. Waiting 10ms before force killing"
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if killingMsg != expectedKillingMsg {
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return false, fmt.Errorf("Unexpected task event message - wanted %q. got %q", killingMsg, expectedKillingMsg)
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}
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// Task Two should be dead
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state2 := last.TaskStates[task2.Name]
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if state2.State != structs.TaskStateDead {
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return false, fmt.Errorf("got state %v; want %v", state2.State, structs.TaskStateDead)
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}
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if state2.FinishedAt.IsZero() || state2.StartedAt.IsZero() {
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return false, fmt.Errorf("expected to have a start and finish time")
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}
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return true, nil
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}, func(err error) {
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t.Fatalf("err: %v", err)
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})
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}
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func TestAllocRunner_TaskGroup_ShutdownDelay(t *testing.T) {
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t.Parallel()
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alloc := mock.Alloc()
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tr := alloc.AllocatedResources.Tasks[alloc.Job.TaskGroups[0].Tasks[0].Name]
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alloc.Job.TaskGroups[0].RestartPolicy.Attempts = 0
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// Create a group service
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tg := alloc.Job.TaskGroups[0]
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tg.Services = []*structs.Service{
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{
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Name: "shutdown_service",
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},
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}
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// Create two tasks in the group
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task := alloc.Job.TaskGroups[0].Tasks[0]
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task.Name = "follower1"
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task.Driver = "mock_driver"
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task.Config = map[string]interface{}{
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"run_for": "10s",
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}
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task2 := alloc.Job.TaskGroups[0].Tasks[0].Copy()
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task2.Name = "leader"
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task2.Driver = "mock_driver"
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task2.Leader = true
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task2.Config = map[string]interface{}{
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"run_for": "10s",
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}
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alloc.Job.TaskGroups[0].Tasks = append(alloc.Job.TaskGroups[0].Tasks, task2)
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alloc.AllocatedResources.Tasks[task.Name] = tr
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alloc.AllocatedResources.Tasks[task2.Name] = tr
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// Set a shutdown delay
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shutdownDelay := 1 * time.Second
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alloc.Job.TaskGroups[0].ShutdownDelay = &shutdownDelay
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conf, cleanup := testAllocRunnerConfig(t, alloc)
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defer cleanup()
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ar, err := NewAllocRunner(conf)
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require.NoError(t, err)
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defer destroy(ar)
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go ar.Run()
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// Wait for tasks to start
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upd := conf.StateUpdater.(*MockStateUpdater)
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last := upd.Last()
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testutil.WaitForResult(func() (bool, error) {
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last = upd.Last()
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if last == nil {
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return false, fmt.Errorf("No updates")
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}
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if n := len(last.TaskStates); n != 2 {
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return false, fmt.Errorf("Not enough task states (want: 2; found %d)", n)
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}
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for name, state := range last.TaskStates {
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if state.State != structs.TaskStateRunning {
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return false, fmt.Errorf("Task %q is not running yet (it's %q)", name, state.State)
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}
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}
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return true, nil
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}, func(err error) {
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t.Fatalf("err: %v", err)
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})
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// Reset updates
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upd.Reset()
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// Stop alloc
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shutdownInit := time.Now()
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update := alloc.Copy()
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update.DesiredStatus = structs.AllocDesiredStatusStop
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ar.Update(update)
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// Wait for tasks to stop
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testutil.WaitForResult(func() (bool, error) {
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last := upd.Last()
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if last == nil {
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return false, fmt.Errorf("No updates")
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}
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fin := last.TaskStates["leader"].FinishedAt
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if fin.IsZero() {
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return false, nil
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}
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return true, nil
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}, func(err error) {
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last := upd.Last()
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for name, state := range last.TaskStates {
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t.Logf("%s: %s", name, state.State)
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}
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t.Fatalf("err: %v", err)
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})
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// Get consul client operations
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consulClient := conf.Consul.(*cconsul.MockConsulServiceClient)
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consulOpts := consulClient.GetOps()
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var groupRemoveOp cconsul.MockConsulOp
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for _, op := range consulOpts {
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// Grab the first deregistration request
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if op.Op == "remove" && op.Name == "group-web" {
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groupRemoveOp = op
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break
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}
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}
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// Ensure remove operation is close to shutdown initiation
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require.True(t, groupRemoveOp.OccurredAt.Sub(shutdownInit) < 100*time.Millisecond)
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last = upd.Last()
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minShutdown := shutdownInit.Add(task.ShutdownDelay)
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leaderFinished := last.TaskStates["leader"].FinishedAt
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followerFinished := last.TaskStates["follower1"].FinishedAt
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// Check that both tasks shut down after min possible shutdown time
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require.Greater(t, leaderFinished.UnixNano(), minShutdown.UnixNano())
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require.Greater(t, followerFinished.UnixNano(), minShutdown.UnixNano())
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// Check that there is at least shutdown_delay between consul
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// remove operation and task finished at time
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require.True(t, leaderFinished.Sub(groupRemoveOp.OccurredAt) > shutdownDelay)
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}
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// TestAllocRunner_TaskLeader_StopTG asserts that when stopping an alloc with a
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// leader the leader is stopped before other tasks.
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func TestAllocRunner_TaskLeader_StopTG(t *testing.T) {
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t.Parallel()
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alloc := mock.Alloc()
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tr := alloc.AllocatedResources.Tasks[alloc.Job.TaskGroups[0].Tasks[0].Name]
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alloc.Job.TaskGroups[0].RestartPolicy.Attempts = 0
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// Create 3 tasks in the task group
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task := alloc.Job.TaskGroups[0].Tasks[0]
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task.Name = "follower1"
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task.Driver = "mock_driver"
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task.Config = map[string]interface{}{
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"run_for": "10s",
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}
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task2 := alloc.Job.TaskGroups[0].Tasks[0].Copy()
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task2.Name = "leader"
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task2.Driver = "mock_driver"
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task2.Leader = true
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task2.Config = map[string]interface{}{
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"run_for": "10s",
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}
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task3 := alloc.Job.TaskGroups[0].Tasks[0].Copy()
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task3.Name = "follower2"
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task3.Driver = "mock_driver"
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task3.Config = map[string]interface{}{
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"run_for": "10s",
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}
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alloc.Job.TaskGroups[0].Tasks = append(alloc.Job.TaskGroups[0].Tasks, task2, task3)
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alloc.AllocatedResources.Tasks[task.Name] = tr
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alloc.AllocatedResources.Tasks[task2.Name] = tr
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alloc.AllocatedResources.Tasks[task3.Name] = tr
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conf, cleanup := testAllocRunnerConfig(t, alloc)
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defer cleanup()
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ar, err := NewAllocRunner(conf)
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require.NoError(t, err)
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defer destroy(ar)
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go ar.Run()
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// Wait for tasks to start
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upd := conf.StateUpdater.(*MockStateUpdater)
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last := upd.Last()
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testutil.WaitForResult(func() (bool, error) {
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last = upd.Last()
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if last == nil {
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return false, fmt.Errorf("No updates")
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}
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if n := len(last.TaskStates); n != 3 {
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return false, fmt.Errorf("Not enough task states (want: 3; found %d)", n)
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}
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for name, state := range last.TaskStates {
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if state.State != structs.TaskStateRunning {
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return false, fmt.Errorf("Task %q is not running yet (it's %q)", name, state.State)
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}
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}
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return true, nil
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}, func(err error) {
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t.Fatalf("err: %v", err)
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})
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// Reset updates
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upd.Reset()
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// Stop alloc
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update := alloc.Copy()
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update.DesiredStatus = structs.AllocDesiredStatusStop
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ar.Update(update)
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// Wait for tasks to stop
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testutil.WaitForResult(func() (bool, error) {
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last := upd.Last()
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if last == nil {
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return false, fmt.Errorf("No updates")
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}
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if last.TaskStates["leader"].FinishedAt.UnixNano() >= last.TaskStates["follower1"].FinishedAt.UnixNano() {
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return false, fmt.Errorf("expected leader to finish before follower1: %s >= %s",
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last.TaskStates["leader"].FinishedAt, last.TaskStates["follower1"].FinishedAt)
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}
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if last.TaskStates["leader"].FinishedAt.UnixNano() >= last.TaskStates["follower2"].FinishedAt.UnixNano() {
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return false, fmt.Errorf("expected leader to finish before follower2: %s >= %s",
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last.TaskStates["leader"].FinishedAt, last.TaskStates["follower2"].FinishedAt)
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}
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return true, nil
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}, func(err error) {
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last := upd.Last()
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for name, state := range last.TaskStates {
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t.Logf("%s: %s", name, state.State)
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}
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t.Fatalf("err: %v", err)
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})
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}
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// TestAllocRunner_TaskLeader_StopRestoredTG asserts that when stopping a
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// restored task group with a leader that failed before restoring the leader is
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// not stopped as it does not exist.
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// See https://github.com/hashicorp/nomad/issues/3420#issuecomment-341666932
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func TestAllocRunner_TaskLeader_StopRestoredTG(t *testing.T) {
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t.Parallel()
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alloc := mock.Alloc()
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tr := alloc.AllocatedResources.Tasks[alloc.Job.TaskGroups[0].Tasks[0].Name]
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alloc.Job.TaskGroups[0].RestartPolicy.Attempts = 0
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// Create a leader and follower task in the task group
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task := alloc.Job.TaskGroups[0].Tasks[0]
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task.Name = "follower1"
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task.Driver = "mock_driver"
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task.KillTimeout = 10 * time.Second
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task.Config = map[string]interface{}{
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"run_for": "10s",
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}
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task2 := alloc.Job.TaskGroups[0].Tasks[0].Copy()
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task2.Name = "leader"
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task2.Driver = "mock_driver"
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task2.Leader = true
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task2.KillTimeout = 10 * time.Millisecond
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task2.Config = map[string]interface{}{
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"run_for": "10s",
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}
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alloc.Job.TaskGroups[0].Tasks = append(alloc.Job.TaskGroups[0].Tasks, task2)
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alloc.AllocatedResources.Tasks[task.Name] = tr
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alloc.AllocatedResources.Tasks[task2.Name] = tr
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conf, cleanup := testAllocRunnerConfig(t, alloc)
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defer cleanup()
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// Use a memory backed statedb
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conf.StateDB = state.NewMemDB(conf.Logger)
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ar, err := NewAllocRunner(conf)
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require.NoError(t, err)
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// Mimic Nomad exiting before the leader stopping is able to stop other tasks.
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ar.tasks["leader"].UpdateState(structs.TaskStateDead, structs.NewTaskEvent(structs.TaskKilled))
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ar.tasks["follower1"].UpdateState(structs.TaskStateRunning, structs.NewTaskEvent(structs.TaskStarted))
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// Create a new AllocRunner to test RestoreState and Run
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ar2, err := NewAllocRunner(conf)
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require.NoError(t, err)
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defer destroy(ar2)
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if err := ar2.Restore(); err != nil {
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t.Fatalf("error restoring state: %v", err)
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}
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ar2.Run()
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// Wait for tasks to be stopped because leader is dead
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testutil.WaitForResult(func() (bool, error) {
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alloc := ar2.Alloc()
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// TODO: this test does not test anything!!! alloc.TaskStates is an empty map
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for task, state := range alloc.TaskStates {
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if state.State != structs.TaskStateDead {
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return false, fmt.Errorf("Task %q should be dead: %v", task, state.State)
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}
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}
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return true, nil
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}, func(err error) {
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t.Fatalf("err: %v", err)
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})
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|
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// Make sure it GCs properly
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ar2.Destroy()
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select {
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case <-ar2.DestroyCh():
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// exited as expected
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case <-time.After(10 * time.Second):
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t.Fatalf("timed out waiting for AR to GC")
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}
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}
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|
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func TestAllocRunner_Restore_LifecycleHooks(t *testing.T) {
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t.Parallel()
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alloc := mock.LifecycleAlloc()
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conf, cleanup := testAllocRunnerConfig(t, alloc)
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defer cleanup()
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// Use a memory backed statedb
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conf.StateDB = state.NewMemDB(conf.Logger)
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ar, err := NewAllocRunner(conf)
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require.NoError(t, err)
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|
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// We should see all tasks with Prestart hooks are not blocked from running:
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// i.e. the "init" and "side" task hook coordinator channels are closed
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require.Truef(t, isChannelClosed(ar.taskHookCoordinator.startConditionForTask(ar.tasks["init"].Task())), "init channel was open, should be closed")
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require.Truef(t, isChannelClosed(ar.taskHookCoordinator.startConditionForTask(ar.tasks["side"].Task())), "side channel was open, should be closed")
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isChannelClosed(ar.taskHookCoordinator.startConditionForTask(ar.tasks["side"].Task()))
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// Mimic client dies while init task running, and client restarts after init task finished
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ar.tasks["init"].UpdateState(structs.TaskStateDead, structs.NewTaskEvent(structs.TaskTerminated))
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ar.tasks["side"].UpdateState(structs.TaskStateRunning, structs.NewTaskEvent(structs.TaskStarted))
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|
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// Create a new AllocRunner to test RestoreState and Run
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ar2, err := NewAllocRunner(conf)
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require.NoError(t, err)
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|
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if err := ar2.Restore(); err != nil {
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t.Fatalf("error restoring state: %v", err)
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}
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|
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// We want to see Restore resume execution with correct hook ordering:
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// i.e. we should see the "web" main task hook coordinator channel is closed
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require.Truef(t, isChannelClosed(ar2.taskHookCoordinator.startConditionForTask(ar.tasks["web"].Task())), "web channel was open, should be closed")
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}
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|
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func TestAllocRunner_Update_Semantics(t *testing.T) {
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t.Parallel()
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require := require.New(t)
|
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|
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updatedAlloc := func(a *structs.Allocation) *structs.Allocation {
|
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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 destroy(ar)
|
|
|
|
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 destroy(ar)
|
|
|
|
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.Parallel()
|
|
|
|
alloc := mock.Alloc()
|
|
task := alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.Config = map[string]interface{}{
|
|
"run_for": "10s",
|
|
}
|
|
|
|
// Set a service with check
|
|
task.Services = []*structs.Service{
|
|
{
|
|
Name: "fakservice",
|
|
PortLabel: "http",
|
|
Checks: []*structs.ServiceCheck{
|
|
{
|
|
Name: "fakecheck",
|
|
Type: structs.ServiceCheckScript,
|
|
Command: "true",
|
|
Interval: 30 * time.Second,
|
|
Timeout: 5 * time.Second,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
// 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.ServiceRegistrations{
|
|
task.Name: {
|
|
Services: map[string]*consul.ServiceRegistration{
|
|
"123": {
|
|
Service: &api.AgentService{Service: "fakeservice"},
|
|
Checks: []*api.AgentCheck{checkUnhealthy},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}, nil
|
|
}
|
|
|
|
ar, err := NewAllocRunner(conf)
|
|
require.NoError(t, err)
|
|
go ar.Run()
|
|
defer destroy(ar)
|
|
|
|
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, "by deadline")
|
|
}
|
|
|
|
// TestAllocRunner_Destroy asserts that Destroy kills and cleans up a running
|
|
// alloc.
|
|
func TestAllocRunner_Destroy(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
// Ensure task takes some time
|
|
alloc := mock.BatchAlloc()
|
|
task := alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Config["run_for"] = "10s"
|
|
|
|
conf, cleanup := testAllocRunnerConfig(t, alloc)
|
|
defer cleanup()
|
|
|
|
// Use a MemDB to assert alloc state gets cleaned up
|
|
conf.StateDB = state.NewMemDB(conf.Logger)
|
|
|
|
ar, err := NewAllocRunner(conf)
|
|
require.NoError(t, err)
|
|
go ar.Run()
|
|
|
|
// Wait for alloc to be running
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
state := ar.AllocState()
|
|
|
|
return state.ClientStatus == structs.AllocClientStatusRunning,
|
|
fmt.Errorf("got client status %v; want running", state.ClientStatus)
|
|
}, func(err error) {
|
|
require.NoError(t, err)
|
|
})
|
|
|
|
// Assert state was stored
|
|
ls, ts, err := conf.StateDB.GetTaskRunnerState(alloc.ID, task.Name)
|
|
require.NoError(t, err)
|
|
require.NotNil(t, ls)
|
|
require.NotNil(t, ts)
|
|
|
|
// Now destroy
|
|
ar.Destroy()
|
|
|
|
select {
|
|
case <-ar.DestroyCh():
|
|
// Destroyed properly!
|
|
case <-time.After(10 * time.Second):
|
|
require.Fail(t, "timed out waiting for alloc to be destroyed")
|
|
}
|
|
|
|
// Assert alloc is dead
|
|
state := ar.AllocState()
|
|
require.Equal(t, structs.AllocClientStatusComplete, state.ClientStatus)
|
|
|
|
// Assert the state was cleaned
|
|
ls, ts, err = conf.StateDB.GetTaskRunnerState(alloc.ID, task.Name)
|
|
require.NoError(t, err)
|
|
require.Nil(t, ls)
|
|
require.Nil(t, ts)
|
|
|
|
// Assert the alloc directory was cleaned
|
|
if _, err := os.Stat(ar.allocDir.AllocDir); err == nil {
|
|
require.Fail(t, "alloc dir still exists: %v", ar.allocDir.AllocDir)
|
|
} else if !os.IsNotExist(err) {
|
|
require.Failf(t, "expected NotExist error", "found %v", err)
|
|
}
|
|
}
|
|
|
|
func TestAllocRunner_SimpleRun(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
alloc := mock.BatchAlloc()
|
|
|
|
conf, cleanup := testAllocRunnerConfig(t, alloc)
|
|
defer cleanup()
|
|
ar, err := NewAllocRunner(conf)
|
|
require.NoError(t, err)
|
|
go ar.Run()
|
|
defer destroy(ar)
|
|
|
|
// Wait for alloc to be running
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
state := ar.AllocState()
|
|
|
|
if state.ClientStatus != structs.AllocClientStatusComplete {
|
|
return false, fmt.Errorf("got status %v; want %v", state.ClientStatus, structs.AllocClientStatusComplete)
|
|
}
|
|
|
|
for t, s := range state.TaskStates {
|
|
if s.FinishedAt.IsZero() {
|
|
return false, fmt.Errorf("task %q has zero FinishedAt value", t)
|
|
}
|
|
}
|
|
|
|
return true, nil
|
|
}, func(err error) {
|
|
require.NoError(t, err)
|
|
})
|
|
|
|
}
|
|
|
|
// TestAllocRunner_MoveAllocDir asserts that a rescheduled
|
|
// allocation copies ephemeral disk content from previous alloc run
|
|
func TestAllocRunner_MoveAllocDir(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
// Step 1: start and run a task
|
|
alloc := mock.BatchAlloc()
|
|
conf, cleanup := testAllocRunnerConfig(t, alloc)
|
|
defer cleanup()
|
|
ar, err := NewAllocRunner(conf)
|
|
require.NoError(t, err)
|
|
ar.Run()
|
|
defer destroy(ar)
|
|
|
|
require.Equal(t, structs.AllocClientStatusComplete, ar.AllocState().ClientStatus)
|
|
|
|
// Step 2. Modify its directory
|
|
task := alloc.Job.TaskGroups[0].Tasks[0]
|
|
dataFile := filepath.Join(ar.allocDir.SharedDir, "data", "data_file")
|
|
ioutil.WriteFile(dataFile, []byte("hello world"), os.ModePerm)
|
|
taskDir := ar.allocDir.TaskDirs[task.Name]
|
|
taskLocalFile := filepath.Join(taskDir.LocalDir, "local_file")
|
|
ioutil.WriteFile(taskLocalFile, []byte("good bye world"), os.ModePerm)
|
|
|
|
// Step 3. Start a new alloc
|
|
alloc2 := mock.BatchAlloc()
|
|
alloc2.PreviousAllocation = alloc.ID
|
|
alloc2.Job.TaskGroups[0].EphemeralDisk.Sticky = true
|
|
|
|
conf2, cleanup := testAllocRunnerConfig(t, alloc2)
|
|
conf2.PrevAllocWatcher, conf2.PrevAllocMigrator = allocwatcher.NewAllocWatcher(allocwatcher.Config{
|
|
Alloc: alloc2,
|
|
PreviousRunner: ar,
|
|
Logger: conf2.Logger,
|
|
})
|
|
defer cleanup()
|
|
ar2, err := NewAllocRunner(conf2)
|
|
require.NoError(t, err)
|
|
|
|
ar2.Run()
|
|
defer destroy(ar2)
|
|
|
|
require.Equal(t, structs.AllocClientStatusComplete, ar2.AllocState().ClientStatus)
|
|
|
|
// Ensure that data from ar was moved to ar2
|
|
dataFile = filepath.Join(ar2.allocDir.SharedDir, "data", "data_file")
|
|
fileInfo, _ := os.Stat(dataFile)
|
|
require.NotNilf(t, fileInfo, "file %q not found", dataFile)
|
|
|
|
taskDir = ar2.allocDir.TaskDirs[task.Name]
|
|
taskLocalFile = filepath.Join(taskDir.LocalDir, "local_file")
|
|
fileInfo, _ = os.Stat(taskLocalFile)
|
|
require.NotNilf(t, fileInfo, "file %q not found", dataFile)
|
|
|
|
}
|
|
|
|
// TestAllocRuner_HandlesArtifactFailure ensures that if one task in a task group is
|
|
// retrying fetching an artifact, other tasks in the group should be able
|
|
// to proceed.
|
|
func TestAllocRunner_HandlesArtifactFailure(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
alloc := mock.BatchAlloc()
|
|
alloc.Job.TaskGroups[0].RestartPolicy = &structs.RestartPolicy{
|
|
Mode: structs.RestartPolicyModeFail,
|
|
Attempts: 1,
|
|
Delay: time.Nanosecond,
|
|
Interval: time.Hour,
|
|
}
|
|
|
|
// Create a new task with a bad artifact
|
|
badtask := alloc.Job.TaskGroups[0].Tasks[0].Copy()
|
|
badtask.Name = "bad"
|
|
badtask.Artifacts = []*structs.TaskArtifact{
|
|
{GetterSource: "http://127.0.0.1:0/foo/bar/baz"},
|
|
}
|
|
|
|
alloc.Job.TaskGroups[0].Tasks = append(alloc.Job.TaskGroups[0].Tasks, badtask)
|
|
alloc.AllocatedResources.Tasks["bad"] = &structs.AllocatedTaskResources{
|
|
Cpu: structs.AllocatedCpuResources{
|
|
CpuShares: 500,
|
|
},
|
|
Memory: structs.AllocatedMemoryResources{
|
|
MemoryMB: 256,
|
|
},
|
|
}
|
|
|
|
conf, cleanup := testAllocRunnerConfig(t, alloc)
|
|
defer cleanup()
|
|
ar, err := NewAllocRunner(conf)
|
|
require.NoError(t, err)
|
|
go ar.Run()
|
|
defer destroy(ar)
|
|
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
state := ar.AllocState()
|
|
|
|
switch state.ClientStatus {
|
|
case structs.AllocClientStatusComplete, structs.AllocClientStatusFailed:
|
|
return true, nil
|
|
default:
|
|
return false, fmt.Errorf("got status %v but want terminal", state.ClientStatus)
|
|
}
|
|
|
|
}, func(err error) {
|
|
require.NoError(t, err)
|
|
})
|
|
|
|
state := ar.AllocState()
|
|
require.Equal(t, structs.AllocClientStatusFailed, state.ClientStatus)
|
|
require.Equal(t, structs.TaskStateDead, state.TaskStates["web"].State)
|
|
require.True(t, state.TaskStates["web"].Successful())
|
|
require.Equal(t, structs.TaskStateDead, state.TaskStates["bad"].State)
|
|
require.True(t, state.TaskStates["bad"].Failed)
|
|
}
|
|
|
|
// Test that alloc runner kills tasks in task group when another task fails
|
|
func TestAllocRunner_TaskFailed_KillTG(t *testing.T) {
|
|
alloc := mock.Alloc()
|
|
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",
|
|
}
|
|
// Set a service with check
|
|
task.Services = []*structs.Service{
|
|
{
|
|
Name: "fakservice",
|
|
PortLabel: "http",
|
|
Checks: []*structs.ServiceCheck{
|
|
{
|
|
Name: "fakecheck",
|
|
Type: structs.ServiceCheckScript,
|
|
Command: "true",
|
|
Interval: 30 * time.Second,
|
|
Timeout: 5 * time.Second,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
task2 := alloc.Job.TaskGroups[0].Tasks[0].Copy()
|
|
task2.Name = "task 2"
|
|
task2.Driver = "mock_driver"
|
|
task2.Config = map[string]interface{}{
|
|
"start_error": "fail task please",
|
|
}
|
|
alloc.Job.TaskGroups[0].Tasks = append(alloc.Job.TaskGroups[0].Tasks, task2)
|
|
alloc.AllocatedResources.Tasks[task.Name] = tr
|
|
alloc.AllocatedResources.Tasks[task2.Name] = tr
|
|
|
|
// 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 = 10 * time.Millisecond
|
|
alloc.Job.TaskGroups[0].Update.HealthyDeadline = 2 * time.Second
|
|
|
|
checkHealthy := &api.AgentCheck{
|
|
CheckID: uuid.Generate(),
|
|
Status: api.HealthPassing,
|
|
}
|
|
|
|
conf, cleanup := testAllocRunnerConfig(t, alloc)
|
|
defer cleanup()
|
|
|
|
consulClient := conf.Consul.(*cconsul.MockConsulServiceClient)
|
|
consulClient.AllocRegistrationsFn = func(allocID string) (*consul.AllocRegistration, error) {
|
|
return &consul.AllocRegistration{
|
|
Tasks: map[string]*consul.ServiceRegistrations{
|
|
task.Name: {
|
|
Services: map[string]*consul.ServiceRegistration{
|
|
"123": {
|
|
Service: &api.AgentService{Service: "fakeservice"},
|
|
Checks: []*api.AgentCheck{checkHealthy},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}, nil
|
|
}
|
|
|
|
ar, err := NewAllocRunner(conf)
|
|
require.NoError(t, err)
|
|
defer destroy(ar)
|
|
go ar.Run()
|
|
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.AllocClientStatusFailed {
|
|
return false, fmt.Errorf("got status %v; want %v", last.ClientStatus, structs.AllocClientStatusFailed)
|
|
}
|
|
|
|
// Task One should be killed
|
|
state1 := last.TaskStates[task.Name]
|
|
if state1.State != structs.TaskStateDead {
|
|
return false, fmt.Errorf("got state %v; want %v", state1.State, structs.TaskStateDead)
|
|
}
|
|
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.TaskSiblingFailed {
|
|
found = true
|
|
}
|
|
}
|
|
|
|
if !found {
|
|
return false, fmt.Errorf("Did not find event %v", structs.TaskSiblingFailed)
|
|
}
|
|
|
|
// Task Two should be failed
|
|
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.Failed {
|
|
return false, fmt.Errorf("task2 should have failed")
|
|
}
|
|
|
|
if !last.DeploymentStatus.HasHealth() {
|
|
return false, fmt.Errorf("Expected deployment health to be non nil")
|
|
}
|
|
|
|
return true, nil
|
|
}, func(err error) {
|
|
require.Fail(t, "err: %v", err)
|
|
})
|
|
}
|
|
|
|
// Test that alloc becoming terminal should destroy the alloc runner
|
|
func TestAllocRunner_TerminalUpdate_Destroy(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
|
|
// Ensure task takes some time
|
|
task := alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.Config["run_for"] = "10s"
|
|
alloc.AllocatedResources.Tasks[task.Name] = tr
|
|
|
|
conf, cleanup := testAllocRunnerConfig(t, alloc)
|
|
defer cleanup()
|
|
ar, err := NewAllocRunner(conf)
|
|
require.NoError(t, err)
|
|
defer destroy(ar)
|
|
go ar.Run()
|
|
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.AllocClientStatusRunning {
|
|
return false, fmt.Errorf("got status %v; want %v", last.ClientStatus, structs.AllocClientStatusRunning)
|
|
}
|
|
return true, nil
|
|
}, func(err error) {
|
|
require.Fail(t, "err: %v", err)
|
|
})
|
|
|
|
// Update the alloc to be terminal which should cause the alloc runner to
|
|
// stop the tasks and wait for a destroy.
|
|
update := ar.alloc.Copy()
|
|
update.DesiredStatus = structs.AllocDesiredStatusStop
|
|
ar.Update(update)
|
|
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
last := upd.Last()
|
|
if last == nil {
|
|
return false, fmt.Errorf("No updates")
|
|
}
|
|
|
|
// Check the status has changed.
|
|
if last.ClientStatus != structs.AllocClientStatusComplete {
|
|
return false, fmt.Errorf("got client status %v; want %v", last.ClientStatus, structs.AllocClientStatusComplete)
|
|
}
|
|
|
|
// Check the alloc directory still exists
|
|
if _, err := os.Stat(ar.allocDir.AllocDir); err != nil {
|
|
return false, fmt.Errorf("alloc dir destroyed: %v", ar.allocDir.AllocDir)
|
|
}
|
|
|
|
return true, nil
|
|
}, func(err error) {
|
|
require.Fail(t, "err: %v", err)
|
|
})
|
|
|
|
// Send the destroy signal and ensure the AllocRunner cleans up.
|
|
ar.Destroy()
|
|
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
last := upd.Last()
|
|
if last == nil {
|
|
return false, fmt.Errorf("No updates")
|
|
}
|
|
|
|
// Check the status has changed.
|
|
if last.ClientStatus != structs.AllocClientStatusComplete {
|
|
return false, fmt.Errorf("got client status %v; want %v", last.ClientStatus, structs.AllocClientStatusComplete)
|
|
}
|
|
|
|
// Check the alloc directory was cleaned
|
|
if _, err := os.Stat(ar.allocDir.AllocDir); err == nil {
|
|
return false, fmt.Errorf("alloc dir still exists: %v", ar.allocDir.AllocDir)
|
|
} else if !os.IsNotExist(err) {
|
|
return false, fmt.Errorf("stat err: %v", err)
|
|
}
|
|
|
|
return true, nil
|
|
}, func(err error) {
|
|
require.Fail(t, "err: %v", err)
|
|
})
|
|
}
|
|
|
|
// TestAllocRunner_PersistState_Destroyed asserts that destroyed allocs don't persist anymore
|
|
func TestAllocRunner_PersistState_Destroyed(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
alloc := mock.BatchAlloc()
|
|
taskName := alloc.Job.LookupTaskGroup(alloc.TaskGroup).Tasks[0].Name
|
|
|
|
conf, cleanup := testAllocRunnerConfig(t, alloc)
|
|
conf.StateDB = state.NewMemDB(conf.Logger)
|
|
|
|
defer cleanup()
|
|
ar, err := NewAllocRunner(conf)
|
|
require.NoError(t, err)
|
|
defer destroy(ar)
|
|
|
|
go ar.Run()
|
|
|
|
select {
|
|
case <-ar.WaitCh():
|
|
case <-time.After(10 * time.Second):
|
|
require.Fail(t, "timed out waiting for alloc to complete")
|
|
}
|
|
|
|
// test final persisted state upon completion
|
|
require.NoError(t, ar.PersistState())
|
|
allocs, _, err := conf.StateDB.GetAllAllocations()
|
|
require.NoError(t, err)
|
|
require.Len(t, allocs, 1)
|
|
require.Equal(t, alloc.ID, allocs[0].ID)
|
|
_, ts, err := conf.StateDB.GetTaskRunnerState(alloc.ID, taskName)
|
|
require.NoError(t, err)
|
|
require.Equal(t, structs.TaskStateDead, ts.State)
|
|
|
|
// check that DB alloc is empty after destroying AR
|
|
ar.Destroy()
|
|
select {
|
|
case <-ar.DestroyCh():
|
|
case <-time.After(10 * time.Second):
|
|
require.Fail(t, "timedout waiting for destruction")
|
|
}
|
|
|
|
allocs, _, err = conf.StateDB.GetAllAllocations()
|
|
require.NoError(t, err)
|
|
require.Empty(t, allocs)
|
|
_, ts, err = conf.StateDB.GetTaskRunnerState(alloc.ID, taskName)
|
|
require.NoError(t, err)
|
|
require.Nil(t, ts)
|
|
|
|
// check that DB alloc is empty after persisting state of destroyed AR
|
|
ar.PersistState()
|
|
allocs, _, err = conf.StateDB.GetAllAllocations()
|
|
require.NoError(t, err)
|
|
require.Empty(t, allocs)
|
|
_, ts, err = conf.StateDB.GetTaskRunnerState(alloc.ID, taskName)
|
|
require.NoError(t, err)
|
|
require.Nil(t, ts)
|
|
}
|