1537 lines
45 KiB
Go
1537 lines
45 KiB
Go
package client
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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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"strings"
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"sync"
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"testing"
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"text/template"
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"time"
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"github.com/boltdb/bolt"
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"github.com/hashicorp/consul/api"
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"github.com/hashicorp/go-multierror"
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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/hashicorp/nomad/version"
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"github.com/kr/pretty"
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"github.com/stretchr/testify/assert"
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"github.com/hashicorp/nomad/client/config"
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"github.com/hashicorp/nomad/client/vaultclient"
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)
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type MockAllocStateUpdater struct {
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Allocs []*structs.Allocation
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mu sync.Mutex
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}
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// Update fulfills the TaskStateUpdater interface
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func (m *MockAllocStateUpdater) Update(alloc *structs.Allocation) {
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m.mu.Lock()
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m.Allocs = append(m.Allocs, alloc)
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m.mu.Unlock()
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}
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// Last returns the total number of updates and the last alloc (or nil)
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func (m *MockAllocStateUpdater) Last() (int, *structs.Allocation) {
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m.mu.Lock()
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defer m.mu.Unlock()
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n := len(m.Allocs)
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if n == 0 {
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return 0, nil
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}
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return n, m.Allocs[n-1].Copy()
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}
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// allocationBucketExists checks if the allocation bucket was created.
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func allocationBucketExists(tx *bolt.Tx, allocID string) bool {
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allocations := tx.Bucket(allocationsBucket)
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if allocations == nil {
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return false
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}
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// Retrieve the specific allocations bucket
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alloc := allocations.Bucket([]byte(allocID))
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return alloc != nil
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}
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func testAllocRunnerFromAlloc(alloc *structs.Allocation, restarts bool) (*MockAllocStateUpdater, *AllocRunner) {
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logger := testLogger()
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conf := config.DefaultConfig()
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conf.Node = mock.Node()
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conf.StateDir = os.TempDir()
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conf.AllocDir = os.TempDir()
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tmp, _ := ioutil.TempFile("", "state-db")
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db, _ := bolt.Open(tmp.Name(), 0600, nil)
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upd := &MockAllocStateUpdater{}
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if !restarts {
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*alloc.Job.LookupTaskGroup(alloc.TaskGroup).RestartPolicy = structs.RestartPolicy{Attempts: 0}
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alloc.Job.Type = structs.JobTypeBatch
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}
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vclient := vaultclient.NewMockVaultClient()
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ar := NewAllocRunner(logger, conf, db, upd.Update, alloc, vclient, newMockConsulServiceClient(), noopPrevAlloc{})
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return upd, ar
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}
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func testAllocRunner(restarts bool) (*MockAllocStateUpdater, *AllocRunner) {
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// Use mock driver
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alloc := mock.Alloc()
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task := alloc.Job.TaskGroups[0].Tasks[0]
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task.Driver = "mock_driver"
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task.Config["run_for"] = "500ms"
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return testAllocRunnerFromAlloc(alloc, restarts)
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}
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func TestAllocRunner_SimpleRun(t *testing.T) {
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t.Parallel()
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upd, ar := testAllocRunner(false)
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go ar.Run()
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defer ar.Destroy()
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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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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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// Test that the watcher will mark the allocation as unhealthy.
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func TestAllocRunner_DeploymentHealth_Unhealthy_BadStart(t *testing.T) {
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t.Parallel()
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assert := assert.New(t)
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// Ensure the task fails and restarts
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upd, ar := testAllocRunner(false)
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// Make the task fail
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task := ar.alloc.Job.TaskGroups[0].Tasks[0]
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task.Driver = "mock_driver"
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task.Config["start_error"] = "test error"
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// Make the alloc be part of a deployment
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ar.alloc.DeploymentID = uuid.Generate()
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ar.alloc.Job.TaskGroups[0].Update = structs.DefaultUpdateStrategy.Copy()
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ar.alloc.Job.TaskGroups[0].Update.HealthCheck = structs.UpdateStrategyHealthCheck_TaskStates
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ar.alloc.Job.TaskGroups[0].Update.MaxParallel = 1
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go ar.Run()
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defer ar.Destroy()
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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.DeploymentStatus == nil || last.DeploymentStatus.Healthy == nil {
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return false, fmt.Errorf("want deployment status unhealthy; got unset")
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} else if *last.DeploymentStatus.Healthy {
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return false, fmt.Errorf("want deployment status unhealthy; got healthy")
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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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// Assert that we have an event explaining why we are unhealthy.
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assert.Len(ar.taskStates, 1)
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state := ar.taskStates[task.Name]
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assert.NotNil(state)
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assert.NotEmpty(state.Events)
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last := state.Events[len(state.Events)-1]
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assert.Equal(allocHealthEventSource, last.Type)
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assert.Contains(last.Message, "failed task")
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}
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// Test that the watcher will mark the allocation as unhealthy if it hits its
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// deadline.
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func TestAllocRunner_DeploymentHealth_Unhealthy_Deadline(t *testing.T) {
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t.Parallel()
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assert := assert.New(t)
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// Ensure the task fails and restarts
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upd, ar := testAllocRunner(false)
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// Make the task block
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task := ar.alloc.Job.TaskGroups[0].Tasks[0]
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task.Driver = "mock_driver"
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task.Config["start_block_for"] = "2s"
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task.Config["run_for"] = "10s"
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// Make the alloc be part of a deployment
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ar.alloc.DeploymentID = uuid.Generate()
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ar.alloc.Job.TaskGroups[0].Update = structs.DefaultUpdateStrategy.Copy()
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ar.alloc.Job.TaskGroups[0].Update.HealthCheck = structs.UpdateStrategyHealthCheck_TaskStates
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ar.alloc.Job.TaskGroups[0].Update.MaxParallel = 1
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ar.alloc.Job.TaskGroups[0].Update.HealthyDeadline = 100 * time.Millisecond
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go ar.Run()
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defer ar.Destroy()
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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.DeploymentStatus == nil || last.DeploymentStatus.Healthy == nil {
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return false, fmt.Errorf("want deployment status unhealthy; got unset")
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} else if *last.DeploymentStatus.Healthy {
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return false, fmt.Errorf("want deployment status unhealthy; got healthy")
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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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// Assert that we have an event explaining why we are unhealthy.
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assert.Len(ar.taskStates, 1)
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state := ar.taskStates[task.Name]
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assert.NotNil(state)
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assert.NotEmpty(state.Events)
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last := state.Events[len(state.Events)-1]
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assert.Equal(allocHealthEventSource, last.Type)
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assert.Contains(last.Message, "not running by deadline")
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}
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// Test that the watcher will mark the allocation as healthy.
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func TestAllocRunner_DeploymentHealth_Healthy_NoChecks(t *testing.T) {
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t.Parallel()
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// Ensure the task fails and restarts
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upd, ar := testAllocRunner(false)
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// Make the task run healthy
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task := ar.alloc.Job.TaskGroups[0].Tasks[0]
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task.Driver = "mock_driver"
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task.Config["run_for"] = "10s"
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// Create a task that takes longer to become healthy
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ar.alloc.Job.TaskGroups[0].Tasks = append(ar.alloc.Job.TaskGroups[0].Tasks, task.Copy())
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task2 := ar.alloc.Job.TaskGroups[0].Tasks[1]
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task2.Name = "task 2"
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task2.Config["start_block_for"] = "500ms"
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// Make the alloc be part of a deployment
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ar.alloc.DeploymentID = uuid.Generate()
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ar.alloc.Job.TaskGroups[0].Update = structs.DefaultUpdateStrategy.Copy()
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ar.alloc.Job.TaskGroups[0].Update.HealthCheck = structs.UpdateStrategyHealthCheck_TaskStates
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ar.alloc.Job.TaskGroups[0].Update.MaxParallel = 1
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ar.alloc.Job.TaskGroups[0].Update.MinHealthyTime = 100 * time.Millisecond
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start := time.Now()
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go ar.Run()
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defer ar.Destroy()
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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.DeploymentStatus == nil || last.DeploymentStatus.Healthy == nil {
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return false, fmt.Errorf("want deployment status unhealthy; got unset")
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} else if !*last.DeploymentStatus.Healthy {
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return false, fmt.Errorf("want deployment status healthy; got unhealthy")
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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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if d := time.Now().Sub(start); d < 500*time.Millisecond {
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t.Fatalf("didn't wait for second task group. Only took %v", d)
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}
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}
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// Test that the watcher will mark the allocation as healthy with checks
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func TestAllocRunner_DeploymentHealth_Healthy_Checks(t *testing.T) {
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t.Parallel()
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// Ensure the task fails and restarts
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upd, ar := testAllocRunner(false)
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// Make the task fail
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task := ar.alloc.Job.TaskGroups[0].Tasks[0]
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task.Driver = "mock_driver"
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task.Config["run_for"] = "10s"
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// Create a task that has no checks
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ar.alloc.Job.TaskGroups[0].Tasks = append(ar.alloc.Job.TaskGroups[0].Tasks, task.Copy())
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task2 := ar.alloc.Job.TaskGroups[0].Tasks[1]
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task2.Name = "task 2"
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task2.Services = nil
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// Make the alloc be part of a deployment
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ar.alloc.DeploymentID = uuid.Generate()
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ar.alloc.Job.TaskGroups[0].Update = structs.DefaultUpdateStrategy.Copy()
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ar.alloc.Job.TaskGroups[0].Update.HealthCheck = structs.UpdateStrategyHealthCheck_Checks
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ar.alloc.Job.TaskGroups[0].Update.MaxParallel = 1
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ar.alloc.Job.TaskGroups[0].Update.MinHealthyTime = 100 * time.Millisecond
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checkHealthy := &api.AgentCheck{
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CheckID: uuid.Generate(),
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Status: api.HealthPassing,
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}
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checkUnhealthy := &api.AgentCheck{
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CheckID: checkHealthy.CheckID,
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Status: api.HealthWarning,
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}
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// Only return the check as healthy after a duration
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trigger := time.After(500 * time.Millisecond)
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ar.consulClient.(*mockConsulServiceClient).allocRegistrationsFn = func(allocID string) (*consul.AllocRegistration, error) {
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select {
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case <-trigger:
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return &consul.AllocRegistration{
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Tasks: map[string]*consul.TaskRegistration{
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task.Name: {
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Services: map[string]*consul.ServiceRegistration{
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"123": {
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Service: &api.AgentService{Service: "foo"},
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Checks: []*api.AgentCheck{checkHealthy},
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},
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},
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},
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},
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}, nil
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default:
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return &consul.AllocRegistration{
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Tasks: map[string]*consul.TaskRegistration{
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task.Name: {
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Services: map[string]*consul.ServiceRegistration{
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"123": {
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Service: &api.AgentService{Service: "foo"},
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Checks: []*api.AgentCheck{checkUnhealthy},
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},
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},
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},
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},
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}, nil
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}
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}
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start := time.Now()
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go ar.Run()
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defer ar.Destroy()
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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.DeploymentStatus == nil || last.DeploymentStatus.Healthy == nil {
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return false, fmt.Errorf("want deployment status unhealthy; got unset")
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} else if !*last.DeploymentStatus.Healthy {
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return false, fmt.Errorf("want deployment status healthy; got unhealthy")
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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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if d := time.Now().Sub(start); d < 500*time.Millisecond {
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t.Fatalf("didn't wait for second task group. Only took %v", d)
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}
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}
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// Test that the watcher will mark the allocation as unhealthy with failing
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// checks
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func TestAllocRunner_DeploymentHealth_Unhealthy_Checks(t *testing.T) {
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t.Parallel()
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assert := assert.New(t)
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// Ensure the task fails and restarts
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upd, ar := testAllocRunner(false)
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// Make the task fail
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task := ar.alloc.Job.TaskGroups[0].Tasks[0]
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task.Driver = "mock_driver"
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task.Config["run_for"] = "10s"
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|
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// Make the alloc be part of a deployment
|
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ar.alloc.DeploymentID = uuid.Generate()
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ar.alloc.Job.TaskGroups[0].Update = structs.DefaultUpdateStrategy.Copy()
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ar.alloc.Job.TaskGroups[0].Update.HealthCheck = structs.UpdateStrategyHealthCheck_Checks
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ar.alloc.Job.TaskGroups[0].Update.MaxParallel = 1
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ar.alloc.Job.TaskGroups[0].Update.MinHealthyTime = 100 * time.Millisecond
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ar.alloc.Job.TaskGroups[0].Update.HealthyDeadline = 1 * time.Second
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checkUnhealthy := &api.AgentCheck{
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CheckID: uuid.Generate(),
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Status: api.HealthWarning,
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}
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|
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// Only return the check as healthy after a duration
|
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ar.consulClient.(*mockConsulServiceClient).allocRegistrationsFn = func(allocID string) (*consul.AllocRegistration, error) {
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return &consul.AllocRegistration{
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Tasks: map[string]*consul.TaskRegistration{
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task.Name: {
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Services: map[string]*consul.ServiceRegistration{
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"123": {
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Service: &api.AgentService{Service: "foo"},
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Checks: []*api.AgentCheck{checkUnhealthy},
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},
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},
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},
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},
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}, nil
|
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}
|
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|
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go ar.Run()
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defer ar.Destroy()
|
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|
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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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if last.DeploymentStatus == nil || last.DeploymentStatus.Healthy == nil {
|
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return false, fmt.Errorf("want deployment status unhealthy; got unset")
|
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} else if *last.DeploymentStatus.Healthy {
|
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return false, fmt.Errorf("want deployment status unhealthy; got healthy")
|
|
}
|
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return true, nil
|
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}, func(err error) {
|
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t.Fatalf("err: %v", err)
|
|
})
|
|
|
|
// Assert that we have an event explaining why we are unhealthy.
|
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assert.Len(ar.taskStates, 1)
|
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state := ar.taskStates[task.Name]
|
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assert.NotNil(state)
|
|
assert.NotEmpty(state.Events)
|
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last := state.Events[len(state.Events)-1]
|
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assert.Equal(allocHealthEventSource, last.Type)
|
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assert.Contains(last.Message, "Services not healthy by deadline")
|
|
}
|
|
|
|
// Test that the watcher will mark the allocation as healthy.
|
|
func TestAllocRunner_DeploymentHealth_Healthy_UpdatedDeployment(t *testing.T) {
|
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t.Parallel()
|
|
|
|
// Ensure the task fails and restarts
|
|
upd, ar := testAllocRunner(false)
|
|
|
|
// Make the task run healthy
|
|
task := ar.alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.Config["run_for"] = "30s"
|
|
|
|
// Make the alloc be part of a deployment
|
|
ar.alloc.DeploymentID = uuid.Generate()
|
|
ar.alloc.Job.TaskGroups[0].Update = structs.DefaultUpdateStrategy.Copy()
|
|
ar.alloc.Job.TaskGroups[0].Update.HealthCheck = structs.UpdateStrategyHealthCheck_TaskStates
|
|
ar.alloc.Job.TaskGroups[0].Update.MaxParallel = 1
|
|
ar.alloc.Job.TaskGroups[0].Update.MinHealthyTime = 100 * time.Millisecond
|
|
|
|
go ar.Run()
|
|
defer ar.Destroy()
|
|
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
_, last := upd.Last()
|
|
if last == nil {
|
|
return false, fmt.Errorf("No updates")
|
|
}
|
|
if last.DeploymentStatus == nil || last.DeploymentStatus.Healthy == nil {
|
|
return false, fmt.Errorf("want deployment status unhealthy; got unset")
|
|
} else if !*last.DeploymentStatus.Healthy {
|
|
return false, fmt.Errorf("want deployment status healthy; got unhealthy")
|
|
}
|
|
return true, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
|
|
// Mimick an update to a new deployment id
|
|
oldCount, last := upd.Last()
|
|
last.DeploymentStatus = nil
|
|
last.DeploymentID = uuid.Generate()
|
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ar.Update(last)
|
|
|
|
testutil.WaitForResult(func() (bool, error) {
|
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newCount, last := upd.Last()
|
|
if newCount <= oldCount {
|
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return false, fmt.Errorf("No new updates")
|
|
}
|
|
if last.DeploymentStatus == nil || last.DeploymentStatus.Healthy == nil {
|
|
return false, fmt.Errorf("want deployment status unhealthy; got unset")
|
|
} else if !*last.DeploymentStatus.Healthy {
|
|
return false, fmt.Errorf("want deployment status healthy; got unhealthy")
|
|
}
|
|
return true, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
}
|
|
|
|
// TestAllocRuner_RetryArtifact 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_RetryArtifact(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
alloc := mock.Alloc()
|
|
alloc.Job.Type = structs.JobTypeBatch
|
|
alloc.Job.TaskGroups[0].RestartPolicy.Mode = structs.RestartPolicyModeFail
|
|
alloc.Job.TaskGroups[0].RestartPolicy.Attempts = 1
|
|
alloc.Job.TaskGroups[0].RestartPolicy.Delay = time.Duration(4*testutil.TestMultiplier()) * time.Second
|
|
|
|
task := alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.Config = map[string]interface{}{
|
|
"exit_code": "0",
|
|
"run_for": "1s",
|
|
}
|
|
|
|
// 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)
|
|
upd, ar := testAllocRunnerFromAlloc(alloc, true)
|
|
go ar.Run()
|
|
defer ar.Destroy()
|
|
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
count, last := upd.Last()
|
|
if min := 6; count < min {
|
|
return false, fmt.Errorf("Not enough updates (%d < %d)", count, min)
|
|
}
|
|
|
|
// web task should have completed successfully while bad task
|
|
// retries artififact fetching
|
|
webstate := last.TaskStates["web"]
|
|
if webstate.State != structs.TaskStateDead {
|
|
return false, fmt.Errorf("expected web to be dead but found %q", last.TaskStates["web"].State)
|
|
}
|
|
if !webstate.Successful() {
|
|
return false, fmt.Errorf("expected web to have exited successfully")
|
|
}
|
|
|
|
// bad task should have failed
|
|
badstate := last.TaskStates["bad"]
|
|
if badstate.State != structs.TaskStateDead {
|
|
return false, fmt.Errorf("expected bad to be dead but found %q", badstate.State)
|
|
}
|
|
if !badstate.Failed {
|
|
return false, fmt.Errorf("expected bad to have failed: %#v", badstate.Events)
|
|
}
|
|
return true, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
}
|
|
|
|
func TestAllocRunner_TerminalUpdate_Destroy(t *testing.T) {
|
|
t.Parallel()
|
|
upd, ar := testAllocRunner(false)
|
|
|
|
// Ensure task takes some time
|
|
task := ar.alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.Config["run_for"] = "10s"
|
|
go ar.Run()
|
|
|
|
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) {
|
|
t.Fatalf("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 allocation state still exists
|
|
if err := ar.stateDB.View(func(tx *bolt.Tx) error {
|
|
if !allocationBucketExists(tx, ar.Alloc().ID) {
|
|
return fmt.Errorf("no bucket for alloc")
|
|
}
|
|
|
|
return nil
|
|
}); err != nil {
|
|
return false, fmt.Errorf("state destroyed")
|
|
}
|
|
|
|
// 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) {
|
|
t.Fatalf("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 state was cleaned
|
|
if err := ar.stateDB.View(func(tx *bolt.Tx) error {
|
|
if allocationBucketExists(tx, ar.Alloc().ID) {
|
|
return fmt.Errorf("bucket for alloc exists")
|
|
}
|
|
|
|
return nil
|
|
}); err != nil {
|
|
return false, fmt.Errorf("state not destroyed")
|
|
}
|
|
|
|
// 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) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
}
|
|
|
|
func TestAllocRunner_Destroy(t *testing.T) {
|
|
t.Parallel()
|
|
upd, ar := testAllocRunner(false)
|
|
|
|
// Ensure task takes some time
|
|
task := ar.alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.Config["run_for"] = "10s"
|
|
go ar.Run()
|
|
start := time.Now()
|
|
|
|
// Begin the tear down
|
|
go func() {
|
|
time.Sleep(1 * time.Second)
|
|
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 state was cleaned
|
|
if err := ar.stateDB.View(func(tx *bolt.Tx) error {
|
|
if allocationBucketExists(tx, ar.Alloc().ID) {
|
|
return fmt.Errorf("bucket for alloc exists")
|
|
}
|
|
|
|
return nil
|
|
}); err != nil {
|
|
return false, fmt.Errorf("state not destroyed: %v", err)
|
|
}
|
|
|
|
// 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) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
|
|
if elapsed := time.Since(start); elapsed > 20*time.Second {
|
|
t.Fatalf("took too long to terminate: %s", elapsed)
|
|
}
|
|
}
|
|
|
|
func TestAllocRunner_Update(t *testing.T) {
|
|
t.Parallel()
|
|
_, ar := testAllocRunner(false)
|
|
|
|
// Deep copy the alloc to avoid races when updating
|
|
newAlloc := ar.Alloc().Copy()
|
|
|
|
// Ensure task takes some time
|
|
task := ar.alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.Config["run_for"] = "10s"
|
|
go ar.Run()
|
|
defer ar.Destroy()
|
|
|
|
// Update the alloc definition
|
|
newAlloc.Name = "FOO"
|
|
newAlloc.AllocModifyIndex++
|
|
ar.Update(newAlloc)
|
|
|
|
// Check the alloc runner stores the update allocation.
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
return ar.Alloc().Name == "FOO", nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v %#v", err, ar.Alloc())
|
|
})
|
|
}
|
|
|
|
func TestAllocRunner_SaveRestoreState(t *testing.T) {
|
|
t.Parallel()
|
|
alloc := mock.Alloc()
|
|
task := alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.Config = map[string]interface{}{
|
|
"exit_code": "0",
|
|
"run_for": "10s",
|
|
}
|
|
|
|
upd, ar := testAllocRunnerFromAlloc(alloc, false)
|
|
go ar.Run()
|
|
defer ar.Destroy()
|
|
|
|
// Snapshot state
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
ar.taskLock.RLock()
|
|
defer ar.taskLock.RUnlock()
|
|
return len(ar.tasks) == 1, nil
|
|
}, func(err error) {
|
|
t.Fatalf("task never started: %v", err)
|
|
})
|
|
|
|
err := ar.SaveState()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Create a new alloc runner
|
|
l2 := prefixedTestLogger("----- ar2: ")
|
|
alloc2 := &structs.Allocation{ID: ar.alloc.ID}
|
|
prevAlloc := newAllocWatcher(alloc2, ar, nil, ar.config, l2, "")
|
|
ar2 := NewAllocRunner(l2, ar.config, ar.stateDB, upd.Update,
|
|
alloc2, ar.vaultClient, ar.consulClient, prevAlloc)
|
|
err = ar2.RestoreState()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
go ar2.Run()
|
|
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
if len(ar2.tasks) != 1 {
|
|
return false, fmt.Errorf("Incorrect number of tasks")
|
|
}
|
|
|
|
_, last := upd.Last()
|
|
if last == nil {
|
|
return false, nil
|
|
}
|
|
|
|
return last.ClientStatus == structs.AllocClientStatusRunning, nil
|
|
}, func(err error) {
|
|
_, last := upd.Last()
|
|
t.Fatalf("err: %v %#v %#v", err, last, last.TaskStates["web"])
|
|
})
|
|
|
|
// Destroy and wait
|
|
ar2.Destroy()
|
|
start := time.Now()
|
|
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
alloc := ar2.Alloc()
|
|
if alloc.ClientStatus != structs.AllocClientStatusComplete {
|
|
return false, fmt.Errorf("Bad client status; got %v; want %v", alloc.ClientStatus, structs.AllocClientStatusComplete)
|
|
}
|
|
return true, nil
|
|
}, func(err error) {
|
|
_, last := upd.Last()
|
|
t.Fatalf("err: %v %#v %#v", err, last, last.TaskStates)
|
|
})
|
|
|
|
if time.Since(start) > time.Duration(testutil.TestMultiplier()*5)*time.Second {
|
|
t.Fatalf("took too long to terminate")
|
|
}
|
|
}
|
|
|
|
func TestAllocRunner_SaveRestoreState_TerminalAlloc(t *testing.T) {
|
|
t.Parallel()
|
|
upd, ar := testAllocRunner(false)
|
|
ar.logger = prefixedTestLogger("ar1: ")
|
|
|
|
// Ensure task takes some time
|
|
ar.alloc.Job.TaskGroups[0].Tasks[0].Driver = "mock_driver"
|
|
task := ar.alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Config["run_for"] = "10s"
|
|
go ar.Run()
|
|
defer ar.Destroy()
|
|
|
|
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) {
|
|
t.Fatalf("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) {
|
|
return ar.Alloc().DesiredStatus == structs.AllocDesiredStatusStop, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
|
|
err := ar.SaveState()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Ensure ar1 doesn't recreate the state file
|
|
ar.allocLock.Lock()
|
|
defer ar.allocLock.Unlock()
|
|
|
|
// Create a new alloc runner
|
|
l2 := prefixedTestLogger("ar2: ")
|
|
alloc2 := &structs.Allocation{ID: ar.alloc.ID}
|
|
prevAlloc := newAllocWatcher(alloc2, ar, nil, ar.config, l2, "")
|
|
ar2 := NewAllocRunner(l2, ar.config, ar.stateDB, upd.Update,
|
|
alloc2, ar.vaultClient, ar.consulClient, prevAlloc)
|
|
err = ar2.RestoreState()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
ar2.logger.Println("[TESTING] running second alloc runner")
|
|
go ar2.Run()
|
|
defer ar2.Destroy() // Just-in-case of failure before Destroy below
|
|
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
// Check the state still exists
|
|
if err := ar.stateDB.View(func(tx *bolt.Tx) error {
|
|
if !allocationBucketExists(tx, ar2.Alloc().ID) {
|
|
return fmt.Errorf("no bucket for alloc")
|
|
}
|
|
|
|
return nil
|
|
}); err != nil {
|
|
return false, fmt.Errorf("state destroyed")
|
|
}
|
|
|
|
// 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) {
|
|
_, last := upd.Last()
|
|
t.Fatalf("err: %v %#v %#v", err, last, last.TaskStates)
|
|
})
|
|
|
|
// Send the destroy signal and ensure the AllocRunner cleans up.
|
|
ar2.logger.Println("[TESTING] destroying second alloc runner")
|
|
ar2.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 state was cleaned
|
|
if err := ar.stateDB.View(func(tx *bolt.Tx) error {
|
|
if allocationBucketExists(tx, ar2.Alloc().ID) {
|
|
return fmt.Errorf("bucket for alloc exists")
|
|
}
|
|
|
|
return nil
|
|
}); err != nil {
|
|
return false, fmt.Errorf("state not destroyed")
|
|
}
|
|
|
|
// 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) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
}
|
|
|
|
// TestAllocRunner_SaveRestoreState_Upgrade asserts that pre-0.6 exec tasks are
|
|
// restarted on upgrade.
|
|
func TestAllocRunner_SaveRestoreState_Upgrade(t *testing.T) {
|
|
t.Parallel()
|
|
alloc := mock.Alloc()
|
|
task := alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.Config = map[string]interface{}{
|
|
"exit_code": "0",
|
|
"run_for": "10s",
|
|
}
|
|
|
|
upd, ar := testAllocRunnerFromAlloc(alloc, false)
|
|
// Hack in old version to cause an upgrade on RestoreState
|
|
origConfig := ar.config.Copy()
|
|
ar.config.Version = &version.VersionInfo{Version: "0.5.6"}
|
|
go ar.Run()
|
|
defer ar.Destroy()
|
|
|
|
// Snapshot state
|
|
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) {
|
|
t.Fatalf("task never started: %v", err)
|
|
})
|
|
|
|
err := ar.SaveState()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Create a new alloc runner
|
|
l2 := prefixedTestLogger("ar2: ")
|
|
alloc2 := &structs.Allocation{ID: ar.alloc.ID}
|
|
prevAlloc := newAllocWatcher(alloc2, ar, nil, origConfig, l2, "")
|
|
ar2 := NewAllocRunner(l2, origConfig, ar.stateDB, upd.Update, alloc2, ar.vaultClient, ar.consulClient, prevAlloc)
|
|
err = ar2.RestoreState()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
go ar2.Run()
|
|
defer ar2.Destroy() // Just-in-case of failure before Destroy below
|
|
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
count, last := upd.Last()
|
|
if min := 3; count < min {
|
|
return false, fmt.Errorf("expected at least %d updates but found %d", min, count)
|
|
}
|
|
for _, ev := range last.TaskStates["web"].Events {
|
|
if strings.HasSuffix(ev.RestartReason, pre06ScriptCheckReason) {
|
|
return true, nil
|
|
}
|
|
}
|
|
return false, fmt.Errorf("no restart with proper reason found")
|
|
}, func(err error) {
|
|
count, last := upd.Last()
|
|
t.Fatalf("err: %v\nAllocs: %d\nweb state: % #v", err, count, pretty.Formatter(last.TaskStates["web"]))
|
|
})
|
|
|
|
// Destroy and wait
|
|
ar2.Destroy()
|
|
start := time.Now()
|
|
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
alloc := ar2.Alloc()
|
|
if alloc.ClientStatus != structs.AllocClientStatusComplete {
|
|
return false, fmt.Errorf("Bad client status; got %v; want %v", alloc.ClientStatus, structs.AllocClientStatusComplete)
|
|
}
|
|
return true, nil
|
|
}, func(err error) {
|
|
_, last := upd.Last()
|
|
t.Fatalf("err: %v %#v %#v", err, last, last.TaskStates)
|
|
})
|
|
|
|
if time.Since(start) > time.Duration(testutil.TestMultiplier()*5)*time.Second {
|
|
t.Fatalf("took too long to terminate")
|
|
}
|
|
}
|
|
|
|
// Ensure pre-#2132 state files containing the Context struct are properly
|
|
// migrated to the new format.
|
|
//
|
|
// Old Context State:
|
|
//
|
|
// "Context": {
|
|
// "AllocDir": {
|
|
// "AllocDir": "/path/to/allocs/2a54fcff-fc44-8d4f-e025-53c48e9cbbbb",
|
|
// "SharedDir": "/path/to/allocs/2a54fcff-fc44-8d4f-e025-53c48e9cbbbb/alloc",
|
|
// "TaskDirs": {
|
|
// "echo1": "/path/to/allocs/2a54fcff-fc44-8d4f-e025-53c48e9cbbbb/echo1"
|
|
// }
|
|
// },
|
|
// "AllocID": "2a54fcff-fc44-8d4f-e025-53c48e9cbbbb"
|
|
// }
|
|
func TestAllocRunner_RestoreOldState(t *testing.T) {
|
|
t.Parallel()
|
|
alloc := mock.Alloc()
|
|
task := alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.Config = map[string]interface{}{
|
|
"exit_code": "0",
|
|
"run_for": "10s",
|
|
}
|
|
|
|
logger := testLogger()
|
|
conf := config.DefaultConfig()
|
|
conf.Node = mock.Node()
|
|
conf.StateDir = os.TempDir()
|
|
conf.AllocDir = os.TempDir()
|
|
tmp, err := ioutil.TempFile("", "state-db")
|
|
if err != nil {
|
|
t.Fatalf("error creating state db file: %v", err)
|
|
}
|
|
db, err := bolt.Open(tmp.Name(), 0600, nil)
|
|
if err != nil {
|
|
t.Fatalf("error creating state db: %v", err)
|
|
}
|
|
|
|
if err := os.MkdirAll(filepath.Join(conf.StateDir, "alloc", alloc.ID), 0777); err != nil {
|
|
t.Fatalf("error creating state dir: %v", err)
|
|
}
|
|
statePath := filepath.Join(conf.StateDir, "alloc", alloc.ID, "state.json")
|
|
w, err := os.Create(statePath)
|
|
if err != nil {
|
|
t.Fatalf("error creating state file: %v", err)
|
|
}
|
|
tmplctx := &struct {
|
|
AllocID string
|
|
AllocDir string
|
|
}{alloc.ID, conf.AllocDir}
|
|
err = template.Must(template.New("test_state").Parse(`{
|
|
"Version": "0.5.1",
|
|
"Alloc": {
|
|
"ID": "{{ .AllocID }}",
|
|
"Name": "example",
|
|
"JobID": "example",
|
|
"Job": {
|
|
"ID": "example",
|
|
"Name": "example",
|
|
"Type": "batch",
|
|
"TaskGroups": [
|
|
{
|
|
"Name": "example",
|
|
"Tasks": [
|
|
{
|
|
"Name": "example",
|
|
"Driver": "mock",
|
|
"Config": {
|
|
"exit_code": "0",
|
|
"run_for": "10s"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
]
|
|
},
|
|
"TaskGroup": "example",
|
|
"DesiredStatus": "run",
|
|
"ClientStatus": "running",
|
|
"TaskStates": {
|
|
"example": {
|
|
"State": "running",
|
|
"Failed": false,
|
|
"Events": []
|
|
}
|
|
}
|
|
},
|
|
"Context": {
|
|
"AllocDir": {
|
|
"AllocDir": "{{ .AllocDir }}/{{ .AllocID }}",
|
|
"SharedDir": "{{ .AllocDir }}/{{ .AllocID }}/alloc",
|
|
"TaskDirs": {
|
|
"example": "{{ .AllocDir }}/{{ .AllocID }}/example"
|
|
}
|
|
},
|
|
"AllocID": "{{ .AllocID }}"
|
|
}
|
|
}`)).Execute(w, tmplctx)
|
|
if err != nil {
|
|
t.Fatalf("error writing state file: %v", err)
|
|
}
|
|
w.Close()
|
|
|
|
upd := &MockAllocStateUpdater{}
|
|
*alloc.Job.LookupTaskGroup(alloc.TaskGroup).RestartPolicy = structs.RestartPolicy{Attempts: 0}
|
|
alloc.Job.Type = structs.JobTypeBatch
|
|
vclient := vaultclient.NewMockVaultClient()
|
|
cclient := newMockConsulServiceClient()
|
|
ar := NewAllocRunner(logger, conf, db, upd.Update, alloc, vclient, cclient, noopPrevAlloc{})
|
|
defer ar.Destroy()
|
|
|
|
// RestoreState should fail on the task state since we only test the
|
|
// alloc state restoring.
|
|
err = ar.RestoreState()
|
|
if err == nil {
|
|
t.Fatal("expected error restoring Task state")
|
|
}
|
|
merr, ok := err.(*multierror.Error)
|
|
if !ok {
|
|
t.Fatalf("expected RestoreState to return a multierror but found: %T -> %v", err, err)
|
|
}
|
|
if len(merr.Errors) != 1 {
|
|
t.Fatalf("expected exactly 1 error from RestoreState but found: %d: %v", len(merr.Errors), err)
|
|
}
|
|
if expected := "failed to get task bucket"; !strings.Contains(merr.Errors[0].Error(), expected) {
|
|
t.Fatalf("expected %q but got: %q", expected, merr.Errors[0].Error())
|
|
}
|
|
|
|
if err := ar.SaveState(); err != nil {
|
|
t.Fatalf("error saving new state: %v", err)
|
|
}
|
|
}
|
|
|
|
func TestAllocRunner_TaskFailed_KillTG(t *testing.T) {
|
|
t.Parallel()
|
|
upd, ar := testAllocRunner(false)
|
|
|
|
// Create two tasks in the task group
|
|
task := ar.alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.KillTimeout = 10 * time.Millisecond
|
|
task.Config = map[string]interface{}{
|
|
"run_for": "10s",
|
|
}
|
|
|
|
task2 := ar.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",
|
|
}
|
|
ar.alloc.Job.TaskGroups[0].Tasks = append(ar.alloc.Job.TaskGroups[0].Tasks, task2)
|
|
ar.alloc.TaskResources[task2.Name] = task2.Resources
|
|
go ar.Run()
|
|
defer ar.Destroy()
|
|
|
|
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")
|
|
}
|
|
|
|
return true, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
}
|
|
|
|
func TestAllocRunner_TaskLeader_KillTG(t *testing.T) {
|
|
t.Parallel()
|
|
upd, ar := testAllocRunner(false)
|
|
|
|
// Create two tasks in the task group
|
|
task := ar.alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.KillTimeout = 10 * time.Millisecond
|
|
task.Config = map[string]interface{}{
|
|
"run_for": "10s",
|
|
}
|
|
|
|
task2 := ar.alloc.Job.TaskGroups[0].Tasks[0].Copy()
|
|
task2.Name = "task 2"
|
|
task2.Driver = "mock_driver"
|
|
task2.Leader = true
|
|
task2.Config = map[string]interface{}{
|
|
"run_for": "1s",
|
|
}
|
|
ar.alloc.Job.TaskGroups[0].Tasks = append(ar.alloc.Job.TaskGroups[0].Tasks, task2)
|
|
ar.alloc.TaskResources[task2.Name] = task2.Resources
|
|
go ar.Run()
|
|
defer ar.Destroy()
|
|
|
|
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)
|
|
}
|
|
|
|
// 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 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 a task group
|
|
// with a leader the leader is stopped before other tasks.
|
|
func TestAllocRunner_TaskLeader_StopTG(t *testing.T) {
|
|
t.Parallel()
|
|
upd, ar := testAllocRunner(false)
|
|
|
|
// Create 3 tasks in the task group
|
|
task := ar.alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Name = "follower1"
|
|
task.Driver = "mock_driver"
|
|
task.KillTimeout = 10 * time.Millisecond
|
|
task.Config = map[string]interface{}{
|
|
"run_for": "10s",
|
|
}
|
|
|
|
task2 := ar.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",
|
|
}
|
|
|
|
task3 := ar.alloc.Job.TaskGroups[0].Tasks[0].Copy()
|
|
task3.Name = "follower2"
|
|
task3.Driver = "mock_driver"
|
|
task3.KillTimeout = 10 * time.Millisecond
|
|
task3.Config = map[string]interface{}{
|
|
"run_for": "10s",
|
|
}
|
|
ar.alloc.Job.TaskGroups[0].Tasks = append(ar.alloc.Job.TaskGroups[0].Tasks, task2, task3)
|
|
ar.alloc.TaskResources[task2.Name] = task2.Resources
|
|
defer ar.Destroy()
|
|
|
|
go ar.Run()
|
|
|
|
// Wait for tasks to start
|
|
oldCount, last := upd.Last()
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
oldCount, 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)
|
|
})
|
|
|
|
// Stop alloc
|
|
update := ar.Alloc()
|
|
update.DesiredStatus = structs.AllocDesiredStatusStop
|
|
ar.Update(update)
|
|
|
|
// Wait for tasks to stop
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
newCount, last := upd.Last()
|
|
if newCount == oldCount {
|
|
return false, fmt.Errorf("no new updates (count: %d)", newCount)
|
|
}
|
|
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) {
|
|
count, last := upd.Last()
|
|
t.Logf("Updates: %d", count)
|
|
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()
|
|
_, ar := testAllocRunner(false)
|
|
defer ar.Destroy()
|
|
|
|
// Create a leader and follower task in the task group
|
|
task := ar.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 := ar.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": "0s",
|
|
}
|
|
|
|
ar.alloc.Job.TaskGroups[0].Tasks = append(ar.alloc.Job.TaskGroups[0].Tasks, task2)
|
|
ar.alloc.TaskResources[task2.Name] = task2.Resources
|
|
|
|
// Mimic Nomad exiting before the leader stopping is able to stop other tasks.
|
|
ar.tasks = map[string]*TaskRunner{
|
|
"leader": NewTaskRunner(ar.logger, ar.config, ar.stateDB, ar.setTaskState,
|
|
ar.allocDir.NewTaskDir(task2.Name), ar.Alloc(), task2.Copy(),
|
|
ar.vaultClient, ar.consulClient),
|
|
"follower1": NewTaskRunner(ar.logger, ar.config, ar.stateDB, ar.setTaskState,
|
|
ar.allocDir.NewTaskDir(task.Name), ar.Alloc(), task.Copy(),
|
|
ar.vaultClient, ar.consulClient),
|
|
}
|
|
ar.taskStates = map[string]*structs.TaskState{
|
|
"leader": {State: structs.TaskStateDead},
|
|
"follower1": {State: structs.TaskStateRunning},
|
|
}
|
|
if err := ar.SaveState(); err != nil {
|
|
t.Fatalf("error saving state: %v", err)
|
|
}
|
|
|
|
// Create a new AllocRunner to test RestoreState and Run
|
|
upd2 := &MockAllocStateUpdater{}
|
|
ar2 := NewAllocRunner(ar.logger, ar.config, ar.stateDB, upd2.Update, ar.alloc,
|
|
ar.vaultClient, ar.consulClient, ar.prevAlloc)
|
|
defer ar2.Destroy()
|
|
|
|
if err := ar2.RestoreState(); err != nil {
|
|
t.Fatalf("error restoring state: %v", err)
|
|
}
|
|
go ar2.Run()
|
|
|
|
// Wait for tasks to be stopped because leader is dead
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
_, last := upd2.Last()
|
|
if last == nil {
|
|
return false, fmt.Errorf("no updates yet")
|
|
}
|
|
if actual := last.TaskStates["leader"].State; actual != structs.TaskStateDead {
|
|
return false, fmt.Errorf("Task leader is not dead yet (it's %q)", actual)
|
|
}
|
|
if actual := last.TaskStates["follower1"].State; actual != structs.TaskStateDead {
|
|
return false, fmt.Errorf("Task follower1 is not dead yet (it's %q)", actual)
|
|
}
|
|
return true, nil
|
|
}, func(err error) {
|
|
count, last := upd2.Last()
|
|
t.Logf("Updates: %d", count)
|
|
for name, state := range last.TaskStates {
|
|
t.Logf("%s: %s", name, state.State)
|
|
}
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
|
|
// Make sure it GCs properly
|
|
ar2.Destroy()
|
|
|
|
select {
|
|
case <-ar2.WaitCh():
|
|
// exited as expected
|
|
case <-time.After(10 * time.Second):
|
|
t.Fatalf("timed out waiting for AR to GC")
|
|
}
|
|
}
|
|
|
|
// TestAllocRunner_MoveAllocDir asserts that a file written to an alloc's
|
|
// local/ dir will be moved to a replacement alloc's local/ dir if sticky
|
|
// volumes is on.
|
|
func TestAllocRunner_MoveAllocDir(t *testing.T) {
|
|
t.Parallel()
|
|
// Create an alloc runner
|
|
alloc := mock.Alloc()
|
|
task := alloc.Job.TaskGroups[0].Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.Config = map[string]interface{}{
|
|
"run_for": "1s",
|
|
}
|
|
upd, ar := testAllocRunnerFromAlloc(alloc, false)
|
|
go ar.Run()
|
|
defer ar.Destroy()
|
|
|
|
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)
|
|
}
|
|
return true, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
|
|
// Write some data in data dir and task dir of the alloc
|
|
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)
|
|
|
|
// Create another alloc runner
|
|
alloc2 := mock.Alloc()
|
|
alloc2.PreviousAllocation = ar.allocID
|
|
alloc2.Job.TaskGroups[0].EphemeralDisk.Sticky = true
|
|
task = alloc2.Job.TaskGroups[0].Tasks[0]
|
|
task.Driver = "mock_driver"
|
|
task.Config = map[string]interface{}{
|
|
"run_for": "1s",
|
|
}
|
|
upd2, ar2 := testAllocRunnerFromAlloc(alloc2, false)
|
|
|
|
// Set prevAlloc like Client does
|
|
ar2.prevAlloc = newAllocWatcher(alloc2, ar, nil, ar2.config, ar2.logger, "")
|
|
|
|
go ar2.Run()
|
|
defer ar2.Destroy()
|
|
|
|
testutil.WaitForResult(func() (bool, error) {
|
|
_, last := upd2.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)
|
|
}
|
|
return true, nil
|
|
}, func(err error) {
|
|
t.Fatalf("err: %v", err)
|
|
})
|
|
|
|
// Ensure that data from ar was moved to ar2
|
|
taskDir = ar2.allocDir.TaskDirs[task.Name]
|
|
taskLocalFile = filepath.Join(taskDir.LocalDir, "local_file")
|
|
if fileInfo, _ := os.Stat(taskLocalFile); fileInfo == nil {
|
|
t.Fatalf("file %v not found", taskLocalFile)
|
|
}
|
|
|
|
dataFile = filepath.Join(ar2.allocDir.SharedDir, "data", "data_file")
|
|
if fileInfo, _ := os.Stat(dataFile); fileInfo == nil {
|
|
t.Fatalf("file %v not found", dataFile)
|
|
}
|
|
}
|