open-nomad/client/task_runner_test.go
2017-07-22 19:58:30 -07:00

1617 lines
46 KiB
Go

package client
import (
"fmt"
"io/ioutil"
"log"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"reflect"
"syscall"
"testing"
"time"
"github.com/boltdb/bolt"
"github.com/golang/snappy"
"github.com/hashicorp/nomad/client/allocdir"
"github.com/hashicorp/nomad/client/config"
cstructs "github.com/hashicorp/nomad/client/structs"
"github.com/hashicorp/nomad/client/vaultclient"
"github.com/hashicorp/nomad/nomad/mock"
"github.com/hashicorp/nomad/nomad/structs"
"github.com/hashicorp/nomad/testutil"
)
func testLogger() *log.Logger {
return prefixedTestLogger("")
}
func prefixedTestLogger(prefix string) *log.Logger {
if testing.Verbose() {
return log.New(os.Stderr, prefix, log.LstdFlags|log.Lmicroseconds)
}
return log.New(ioutil.Discard, "", 0)
}
type MockTaskStateUpdater struct {
state string
failed bool
events []*structs.TaskEvent
}
func (m *MockTaskStateUpdater) Update(name, state string, event *structs.TaskEvent) {
if state != "" {
m.state = state
}
if event != nil {
if event.FailsTask {
m.failed = true
}
m.events = append(m.events, event)
}
}
type taskRunnerTestCtx struct {
upd *MockTaskStateUpdater
tr *TaskRunner
allocDir *allocdir.AllocDir
}
// Cleanup calls Destroy on the task runner and alloc dir
func (ctx *taskRunnerTestCtx) Cleanup() {
ctx.tr.Destroy(structs.NewTaskEvent(structs.TaskKilled))
ctx.allocDir.Destroy()
}
func testTaskRunner(t *testing.T, restarts bool) *taskRunnerTestCtx {
// Use mock driver
alloc := mock.Alloc()
task := alloc.Job.TaskGroups[0].Tasks[0]
task.Driver = "mock_driver"
task.Config["run_for"] = "500ms"
return testTaskRunnerFromAlloc(t, restarts, alloc)
}
// Creates a mock task runner using the first task in the first task group of
// the passed allocation.
//
// Callers should defer Cleanup() to cleanup after completion
func testTaskRunnerFromAlloc(t *testing.T, restarts bool, alloc *structs.Allocation) *taskRunnerTestCtx {
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)
}
upd := &MockTaskStateUpdater{}
task := alloc.Job.TaskGroups[0].Tasks[0]
// Initialize the port listing. This should be done by the offer process but
// we have a mock so that doesn't happen.
task.Resources.Networks[0].ReservedPorts = []structs.Port{{Label: "", Value: 80}}
allocDir := allocdir.NewAllocDir(testLogger(), filepath.Join(conf.AllocDir, alloc.ID))
if err := allocDir.Build(); err != nil {
t.Fatalf("error building alloc dir: %v", err)
return nil
}
//HACK to get FSIsolation and chroot without using AllocRunner,
// TaskRunner, or Drivers
fsi := cstructs.FSIsolationImage
switch task.Driver {
case "raw_exec":
fsi = cstructs.FSIsolationNone
case "exec", "java":
fsi = cstructs.FSIsolationChroot
}
taskDir := allocDir.NewTaskDir(task.Name)
if err := taskDir.Build(false, config.DefaultChrootEnv, fsi); err != nil {
t.Fatalf("error building task dir %q: %v", task.Name, err)
return nil
}
vclient := vaultclient.NewMockVaultClient()
cclient := newMockConsulServiceClient()
tr := NewTaskRunner(logger, conf, db, upd.Update, taskDir, alloc, task, vclient, cclient)
if !restarts {
tr.restartTracker = noRestartsTracker()
}
return &taskRunnerTestCtx{upd, tr, allocDir}
}
// testWaitForTaskToStart waits for the task to or fails the test
func testWaitForTaskToStart(t *testing.T, ctx *taskRunnerTestCtx) {
// Wait for the task to start
testutil.WaitForResult(func() (bool, error) {
l := len(ctx.upd.events)
if l < 2 {
return false, fmt.Errorf("Expect two events; got %v", l)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
return false, fmt.Errorf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if l >= 3 {
if ctx.upd.events[1].Type != structs.TaskSetup {
return false, fmt.Errorf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskSetup)
}
if ctx.upd.events[2].Type != structs.TaskStarted {
return false, fmt.Errorf("Third Event was %v; want %v", ctx.upd.events[2].Type, structs.TaskStarted)
}
} else {
if ctx.upd.events[1].Type != structs.TaskStarted {
return false, fmt.Errorf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskStarted)
}
}
return true, nil
}, func(err error) {
t.Fatalf("err: %v", err)
})
}
func TestTaskRunner_SimpleRun(t *testing.T) {
t.Parallel()
ctx := testTaskRunner(t, false)
ctx.tr.MarkReceived()
go ctx.tr.Run()
defer ctx.Cleanup()
select {
case <-ctx.tr.WaitCh():
case <-time.After(time.Duration(testutil.TestMultiplier()*15) * time.Second):
t.Fatalf("timeout")
}
if len(ctx.upd.events) != 4 {
t.Fatalf("should have 3 ctx.updates: %#v", ctx.upd.events)
}
if ctx.upd.state != structs.TaskStateDead {
t.Fatalf("TaskState %v; want %v", ctx.upd.state, structs.TaskStateDead)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
t.Fatalf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if ctx.upd.events[1].Type != structs.TaskSetup {
t.Fatalf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskSetup)
}
if ctx.upd.events[2].Type != structs.TaskStarted {
t.Fatalf("Second Event was %v; want %v", ctx.upd.events[2].Type, structs.TaskStarted)
}
if ctx.upd.events[3].Type != structs.TaskTerminated {
t.Fatalf("Third Event was %v; want %v", ctx.upd.events[3].Type, structs.TaskTerminated)
}
}
func TestTaskRunner_Run_RecoverableStartError(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,
"start_error": "driver failure",
"start_error_recoverable": true,
}
ctx := testTaskRunnerFromAlloc(t, true, alloc)
ctx.tr.MarkReceived()
go ctx.tr.Run()
defer ctx.Cleanup()
testutil.WaitForResult(func() (bool, error) {
if l := len(ctx.upd.events); l < 4 {
return false, fmt.Errorf("Expect at least four events; got %v", l)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
return false, fmt.Errorf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if ctx.upd.events[1].Type != structs.TaskSetup {
return false, fmt.Errorf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskSetup)
}
if ctx.upd.events[2].Type != structs.TaskDriverFailure {
return false, fmt.Errorf("Third Event was %v; want %v", ctx.upd.events[2].Type, structs.TaskDriverFailure)
}
if ctx.upd.events[3].Type != structs.TaskRestarting {
return false, fmt.Errorf("Fourth Event was %v; want %v", ctx.upd.events[3].Type, structs.TaskRestarting)
}
return true, nil
}, func(err error) {
t.Fatalf("err: %v", err)
})
}
func TestTaskRunner_Destroy(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": "1000s",
}
ctx := testTaskRunnerFromAlloc(t, true, alloc)
ctx.tr.MarkReceived()
go ctx.tr.Run()
defer ctx.Cleanup()
// Wait for the task to start
testWaitForTaskToStart(t, ctx)
// Begin the tear down
ctx.tr.Destroy(structs.NewTaskEvent(structs.TaskKilled))
select {
case <-ctx.tr.WaitCh():
case <-time.After(time.Duration(testutil.TestMultiplier()*15) * time.Second):
t.Fatalf("timeout")
}
if len(ctx.upd.events) != 5 {
t.Fatalf("should have 5 ctx.updates: %#v", ctx.upd.events)
}
if ctx.upd.state != structs.TaskStateDead {
t.Fatalf("TaskState %v; want %v", ctx.upd.state, structs.TaskStateDead)
}
if ctx.upd.events[3].Type != structs.TaskKilling {
t.Fatalf("Third Event was %v; want %v", ctx.upd.events[3].Type, structs.TaskKilling)
}
if ctx.upd.events[4].Type != structs.TaskKilled {
t.Fatalf("Third Event was %v; want %v", ctx.upd.events[4].Type, structs.TaskKilled)
}
}
func TestTaskRunner_Update(t *testing.T) {
t.Parallel()
alloc := mock.Alloc()
task := alloc.Job.TaskGroups[0].Tasks[0]
task.Services[0].Checks[0].Args[0] = "${NOMAD_META_foo}"
task.Driver = "mock_driver"
task.Config = map[string]interface{}{
"run_for": "100s",
}
ctx := testTaskRunnerFromAlloc(t, true, alloc)
ctx.tr.MarkReceived()
go ctx.tr.Run()
defer ctx.Cleanup()
// Update the task definition
updateAlloc := ctx.tr.alloc.Copy()
// Update the restart policy
newTG := updateAlloc.Job.TaskGroups[0]
newMode := "foo"
newTG.RestartPolicy.Mode = newMode
newTask := newTG.Tasks[0]
newTask.Driver = "mock_driver"
// Update meta to make sure service checks are interpolated correctly
// #2180
newTask.Meta["foo"] = "UPDATE"
// Update the kill timeout
testWaitForTaskToStart(t, ctx)
oldHandle := ctx.tr.handle.ID()
newTask.KillTimeout = time.Hour
ctx.tr.Update(updateAlloc)
// Wait for ctx.update to take place
testutil.WaitForResult(func() (bool, error) {
if ctx.tr.task == newTask {
return false, fmt.Errorf("We copied the pointer! This would be very bad")
}
if ctx.tr.task.Driver != newTask.Driver {
return false, fmt.Errorf("Task not copied")
}
if ctx.tr.restartTracker.policy.Mode != newMode {
return false, fmt.Errorf("restart policy not ctx.updated")
}
if ctx.tr.handle.ID() == oldHandle {
return false, fmt.Errorf("handle not ctx.updated")
}
// Make sure Consul services were interpolated correctly during
// the update #2180
consul := ctx.tr.consul.(*mockConsulServiceClient)
consul.mu.Lock()
defer consul.mu.Unlock()
if len(consul.ops) < 2 {
return false, fmt.Errorf("expected at least 2 consul ops found: %d", len(consul.ops))
}
lastOp := consul.ops[len(consul.ops)-1]
if lastOp.op != "update" {
return false, fmt.Errorf("expected last consul op to be update not %q", lastOp.op)
}
if found := lastOp.task.Services[0].Checks[0].Args[0]; found != "UPDATE" {
return false, fmt.Errorf("expected consul check to be UPDATE but found: %q", found)
}
return true, nil
}, func(err error) {
t.Fatalf("err: %v", err)
})
}
func TestTaskRunner_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": "5s",
}
// Give it a Vault token
task.Vault = &structs.Vault{Policies: []string{"default"}}
ctx := testTaskRunnerFromAlloc(t, false, alloc)
ctx.tr.MarkReceived()
go ctx.tr.Run()
defer ctx.Cleanup()
// Wait for the task to be running and then snapshot the state
testWaitForTaskToStart(t, ctx)
if err := ctx.tr.SaveState(); err != nil {
t.Fatalf("err: %v", err)
}
// Read the token from the file system
tokenPath := filepath.Join(ctx.tr.taskDir.SecretsDir, vaultTokenFile)
data, err := ioutil.ReadFile(tokenPath)
if err != nil {
t.Fatalf("Failed to read file: %v", err)
}
token := string(data)
if len(token) == 0 {
t.Fatalf("Token not written to disk")
}
// Create a new task runner
task2 := &structs.Task{Name: ctx.tr.task.Name, Driver: ctx.tr.task.Driver, Vault: ctx.tr.task.Vault}
tr2 := NewTaskRunner(ctx.tr.logger, ctx.tr.config, ctx.tr.stateDB, ctx.upd.Update,
ctx.tr.taskDir, ctx.tr.alloc, task2, ctx.tr.vaultClient, ctx.tr.consul)
tr2.restartTracker = noRestartsTracker()
if _, err := tr2.RestoreState(); err != nil {
t.Fatalf("err: %v", err)
}
go tr2.Run()
defer tr2.Destroy(structs.NewTaskEvent(structs.TaskKilled))
// Destroy and wait
select {
case <-tr2.WaitCh():
case <-time.After(time.Duration(testutil.TestMultiplier()*15) * time.Second):
t.Fatalf("timeout")
}
// Check that we recovered the token
if act := tr2.vaultFuture.Get(); act != token {
t.Fatalf("Vault token not properly recovered")
}
}
func TestTaskRunner_Download_List(t *testing.T) {
t.Parallel()
ts := httptest.NewServer(http.FileServer(http.Dir(filepath.Dir("."))))
defer ts.Close()
// Create an allocation that has a task with a list of artifacts.
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",
}
f1 := "task_runner_test.go"
f2 := "task_runner.go"
artifact1 := structs.TaskArtifact{
GetterSource: fmt.Sprintf("%s/%s", ts.URL, f1),
}
artifact2 := structs.TaskArtifact{
GetterSource: fmt.Sprintf("%s/%s", ts.URL, f2),
}
task.Artifacts = []*structs.TaskArtifact{&artifact1, &artifact2}
ctx := testTaskRunnerFromAlloc(t, false, alloc)
ctx.tr.MarkReceived()
go ctx.tr.Run()
defer ctx.Cleanup()
select {
case <-ctx.tr.WaitCh():
case <-time.After(time.Duration(testutil.TestMultiplier()*15) * time.Second):
t.Fatalf("timeout")
}
if len(ctx.upd.events) != 5 {
t.Fatalf("should have 5 ctx.updates: %#v", ctx.upd.events)
}
if ctx.upd.state != structs.TaskStateDead {
t.Fatalf("TaskState %v; want %v", ctx.upd.state, structs.TaskStateDead)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
t.Fatalf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if ctx.upd.events[1].Type != structs.TaskSetup {
t.Fatalf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskSetup)
}
if ctx.upd.events[2].Type != structs.TaskDownloadingArtifacts {
t.Fatalf("Third Event was %v; want %v", ctx.upd.events[2].Type, structs.TaskDownloadingArtifacts)
}
if ctx.upd.events[3].Type != structs.TaskStarted {
t.Fatalf("Forth Event was %v; want %v", ctx.upd.events[3].Type, structs.TaskStarted)
}
if ctx.upd.events[4].Type != structs.TaskTerminated {
t.Fatalf("Fifth Event was %v; want %v", ctx.upd.events[4].Type, structs.TaskTerminated)
}
// Check that both files exist.
if _, err := os.Stat(filepath.Join(ctx.tr.taskDir.Dir, f1)); err != nil {
t.Fatalf("%v not downloaded", f1)
}
if _, err := os.Stat(filepath.Join(ctx.tr.taskDir.Dir, f2)); err != nil {
t.Fatalf("%v not downloaded", f2)
}
}
func TestTaskRunner_Download_Retries(t *testing.T) {
t.Parallel()
// Create an allocation that has a task with bad artifacts.
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",
}
artifact := structs.TaskArtifact{
GetterSource: "http://127.0.0.1:0/foo/bar/baz",
}
task.Artifacts = []*structs.TaskArtifact{&artifact}
// Make the restart policy try one ctx.update
alloc.Job.TaskGroups[0].RestartPolicy = &structs.RestartPolicy{
Attempts: 1,
Interval: 10 * time.Minute,
Delay: 1 * time.Second,
Mode: structs.RestartPolicyModeFail,
}
ctx := testTaskRunnerFromAlloc(t, true, alloc)
ctx.tr.MarkReceived()
go ctx.tr.Run()
defer ctx.Cleanup()
select {
case <-ctx.tr.WaitCh():
case <-time.After(time.Duration(testutil.TestMultiplier()*15) * time.Second):
t.Fatalf("timeout")
}
if len(ctx.upd.events) != 8 {
t.Fatalf("should have 8 ctx.updates: %#v", ctx.upd.events)
}
if ctx.upd.state != structs.TaskStateDead {
t.Fatalf("TaskState %v; want %v", ctx.upd.state, structs.TaskStateDead)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
t.Fatalf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if ctx.upd.events[1].Type != structs.TaskSetup {
t.Fatalf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskSetup)
}
if ctx.upd.events[2].Type != structs.TaskDownloadingArtifacts {
t.Fatalf("Third Event was %v; want %v", ctx.upd.events[2].Type, structs.TaskDownloadingArtifacts)
}
if ctx.upd.events[3].Type != structs.TaskArtifactDownloadFailed {
t.Fatalf("Fourth Event was %v; want %v", ctx.upd.events[3].Type, structs.TaskArtifactDownloadFailed)
}
if ctx.upd.events[4].Type != structs.TaskRestarting {
t.Fatalf("Fifth Event was %v; want %v", ctx.upd.events[4].Type, structs.TaskRestarting)
}
if ctx.upd.events[5].Type != structs.TaskDownloadingArtifacts {
t.Fatalf("Sixth Event was %v; want %v", ctx.upd.events[5].Type, structs.TaskDownloadingArtifacts)
}
if ctx.upd.events[6].Type != structs.TaskArtifactDownloadFailed {
t.Fatalf("Seventh Event was %v; want %v", ctx.upd.events[6].Type, structs.TaskArtifactDownloadFailed)
}
if ctx.upd.events[7].Type != structs.TaskNotRestarting {
t.Fatalf("Eighth Event was %v; want %v", ctx.upd.events[7].Type, structs.TaskNotRestarting)
}
}
// TestTaskRunner_UnregisterConsul_Retries asserts a task is unregistered from
// Consul when waiting to be retried.
func TestTaskRunner_UnregisterConsul_Retries(t *testing.T) {
t.Parallel()
// Create an allocation that has a task with bad artifacts.
alloc := mock.Alloc()
// Make the restart policy try one ctx.update
alloc.Job.TaskGroups[0].RestartPolicy = &structs.RestartPolicy{
Attempts: 1,
Interval: 10 * time.Minute,
Delay: time.Nanosecond,
Mode: structs.RestartPolicyModeFail,
}
task := alloc.Job.TaskGroups[0].Tasks[0]
task.Driver = "mock_driver"
task.Config = map[string]interface{}{
"exit_code": "1",
"run_for": "1ns",
}
ctx := testTaskRunnerFromAlloc(t, true, alloc)
ctx.tr.MarkReceived()
ctx.tr.Run()
defer ctx.Cleanup()
// Assert it is properly registered and unregistered
consul := ctx.tr.consul.(*mockConsulServiceClient)
if expected := 4; len(consul.ops) != expected {
t.Errorf("expected %d consul ops but found: %d", expected, len(consul.ops))
}
if consul.ops[0].op != "add" {
t.Errorf("expected first op to be add but found: %q", consul.ops[0].op)
}
if consul.ops[1].op != "remove" {
t.Errorf("expected second op to be remove but found: %q", consul.ops[1].op)
}
if consul.ops[2].op != "add" {
t.Errorf("expected third op to be add but found: %q", consul.ops[2].op)
}
if consul.ops[3].op != "remove" {
t.Errorf("expected fourth/final op to be remove but found: %q", consul.ops[3].op)
}
}
func TestTaskRunner_Validate_UserEnforcement(t *testing.T) {
t.Parallel()
ctx := testTaskRunner(t, false)
defer ctx.Cleanup()
// Try to run as root with exec.
ctx.tr.task.Driver = "exec"
ctx.tr.task.User = "root"
if err := ctx.tr.validateTask(); err == nil {
t.Fatalf("expected error running as root with exec")
}
// Try to run a non-blacklisted user with exec.
ctx.tr.task.Driver = "exec"
ctx.tr.task.User = "foobar"
if err := ctx.tr.validateTask(); err != nil {
t.Fatalf("unexpected error: %v", err)
}
// Try to run as root with docker.
ctx.tr.task.Driver = "docker"
ctx.tr.task.User = "root"
if err := ctx.tr.validateTask(); err != nil {
t.Fatalf("unexpected error: %v", err)
}
}
func TestTaskRunner_RestartTask(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": "100s",
}
ctx := testTaskRunnerFromAlloc(t, true, alloc)
ctx.tr.MarkReceived()
go ctx.tr.Run()
defer ctx.Cleanup()
// Wait for it to start
go func() {
testWaitForTaskToStart(t, ctx)
ctx.tr.Restart("test", "restart")
// Wait for it to restart then kill
go func() {
// Wait for the task to start again
testutil.WaitForResult(func() (bool, error) {
if len(ctx.upd.events) != 8 {
return false, fmt.Errorf("task %q in alloc %q should have 8 ctx.updates: %#v", task.Name, alloc.ID, ctx.upd.events)
}
return true, nil
}, func(err error) {
t.Fatalf("err: %v", err)
})
ctx.tr.Kill("test", "restart", false)
}()
}()
select {
case <-ctx.tr.WaitCh():
case <-time.After(time.Duration(testutil.TestMultiplier()*15) * time.Second):
t.Fatalf("timeout")
}
if len(ctx.upd.events) != 10 {
t.Fatalf("should have 10 ctx.updates: %#v", ctx.upd.events)
}
if ctx.upd.state != structs.TaskStateDead {
t.Fatalf("TaskState %v; want %v", ctx.upd.state, structs.TaskStateDead)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
t.Fatalf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if ctx.upd.events[1].Type != structs.TaskSetup {
t.Fatalf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskSetup)
}
if ctx.upd.events[2].Type != structs.TaskStarted {
t.Fatalf("Third Event was %v; want %v", ctx.upd.events[2].Type, structs.TaskStarted)
}
if ctx.upd.events[3].Type != structs.TaskRestartSignal {
t.Fatalf("Fourth Event was %v; want %v", ctx.upd.events[3].Type, structs.TaskRestartSignal)
}
if ctx.upd.events[4].Type != structs.TaskKilling {
t.Fatalf("Fifth Event was %v; want %v", ctx.upd.events[4].Type, structs.TaskKilling)
}
if ctx.upd.events[5].Type != structs.TaskKilled {
t.Fatalf("Sixth Event was %v; want %v", ctx.upd.events[5].Type, structs.TaskKilled)
}
if ctx.upd.events[6].Type != structs.TaskRestarting {
t.Fatalf("Seventh Event was %v; want %v", ctx.upd.events[6].Type, structs.TaskRestarting)
}
if ctx.upd.events[7].Type != structs.TaskStarted {
t.Fatalf("Eighth Event was %v; want %v", ctx.upd.events[8].Type, structs.TaskStarted)
}
if ctx.upd.events[8].Type != structs.TaskKilling {
t.Fatalf("Nineth Event was %v; want %v", ctx.upd.events[8].Type, structs.TaskKilling)
}
if ctx.upd.events[9].Type != structs.TaskKilled {
t.Fatalf("Tenth Event was %v; want %v", ctx.upd.events[9].Type, structs.TaskKilled)
}
}
func TestTaskRunner_KillTask(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",
}
ctx := testTaskRunnerFromAlloc(t, false, alloc)
ctx.tr.MarkReceived()
go ctx.tr.Run()
defer ctx.Cleanup()
go func() {
testWaitForTaskToStart(t, ctx)
ctx.tr.Kill("test", "kill", true)
}()
select {
case <-ctx.tr.WaitCh():
case <-time.After(time.Duration(testutil.TestMultiplier()*15) * time.Second):
t.Fatalf("timeout")
}
if len(ctx.upd.events) != 5 {
t.Fatalf("should have 4 ctx.updates: %#v", ctx.upd.events)
}
if ctx.upd.state != structs.TaskStateDead {
t.Fatalf("TaskState %v; want %v", ctx.upd.state, structs.TaskStateDead)
}
if !ctx.upd.failed {
t.Fatalf("TaskState should be failed: %+v", ctx.upd)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
t.Fatalf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if ctx.upd.events[1].Type != structs.TaskSetup {
t.Fatalf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskSetup)
}
if ctx.upd.events[2].Type != structs.TaskStarted {
t.Fatalf("Third Event was %v; want %v", ctx.upd.events[2].Type, structs.TaskStarted)
}
if ctx.upd.events[3].Type != structs.TaskKilling {
t.Fatalf("Fourth Event was %v; want %v", ctx.upd.events[3].Type, structs.TaskKilling)
}
if ctx.upd.events[4].Type != structs.TaskKilled {
t.Fatalf("Fifth Event was %v; want %v", ctx.upd.events[4].Type, structs.TaskKilled)
}
}
func TestTaskRunner_SignalFailure(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",
"signal_error": "test forcing failure",
}
ctx := testTaskRunnerFromAlloc(t, false, alloc)
ctx.tr.MarkReceived()
go ctx.tr.Run()
defer ctx.Cleanup()
// Wait for the task to start
testWaitForTaskToStart(t, ctx)
if err := ctx.tr.Signal("test", "test", syscall.SIGINT); err == nil {
t.Fatalf("Didn't receive error")
}
}
func TestTaskRunner_BlockForVault(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": "1s",
}
task.Vault = &structs.Vault{Policies: []string{"default"}}
ctx := testTaskRunnerFromAlloc(t, false, alloc)
ctx.tr.MarkReceived()
defer ctx.Cleanup()
// Control when we get a Vault token
token := "1234"
waitCh := make(chan struct{})
handler := func(*structs.Allocation, []string) (map[string]string, error) {
<-waitCh
return map[string]string{task.Name: token}, nil
}
ctx.tr.vaultClient.(*vaultclient.MockVaultClient).DeriveTokenFn = handler
go ctx.tr.Run()
select {
case <-ctx.tr.WaitCh():
t.Fatalf("premature exit")
case <-time.After(1 * time.Second):
}
if len(ctx.upd.events) != 2 {
t.Fatalf("should have 2 ctx.updates: %#v", ctx.upd.events)
}
if ctx.upd.state != structs.TaskStatePending {
t.Fatalf("TaskState %v; want %v", ctx.upd.state, structs.TaskStatePending)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
t.Fatalf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if ctx.upd.events[1].Type != structs.TaskSetup {
t.Fatalf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskSetup)
}
// Unblock
close(waitCh)
select {
case <-ctx.tr.WaitCh():
case <-time.After(time.Duration(testutil.TestMultiplier()*15) * time.Second):
t.Fatalf("timeout")
}
if len(ctx.upd.events) != 4 {
t.Fatalf("should have 4 ctx.updates: %#v", ctx.upd.events)
}
if ctx.upd.state != structs.TaskStateDead {
t.Fatalf("TaskState %v; want %v", ctx.upd.state, structs.TaskStateDead)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
t.Fatalf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if ctx.upd.events[1].Type != structs.TaskSetup {
t.Fatalf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskSetup)
}
if ctx.upd.events[2].Type != structs.TaskStarted {
t.Fatalf("Third Event was %v; want %v", ctx.upd.events[2].Type, structs.TaskStarted)
}
if ctx.upd.events[3].Type != structs.TaskTerminated {
t.Fatalf("Fourth Event was %v; want %v", ctx.upd.events[3].Type, structs.TaskTerminated)
}
// Check that the token is on disk
tokenPath := filepath.Join(ctx.tr.taskDir.SecretsDir, vaultTokenFile)
data, err := ioutil.ReadFile(tokenPath)
if err != nil {
t.Fatalf("Failed to read file: %v", err)
}
if act := string(data); act != token {
t.Fatalf("Token didn't get written to disk properly, got %q; want %q", act, token)
}
// Check the token was revoked
m := ctx.tr.vaultClient.(*vaultclient.MockVaultClient)
testutil.WaitForResult(func() (bool, error) {
if len(m.StoppedTokens) != 1 {
return false, fmt.Errorf("Expected a stopped token: %v", m.StoppedTokens)
}
if a := m.StoppedTokens[0]; a != token {
return false, fmt.Errorf("got stopped token %q; want %q", a, token)
}
return true, nil
}, func(err error) {
t.Fatalf("err: %v", err)
})
}
func TestTaskRunner_DeriveToken_Retry(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": "1s",
}
task.Vault = &structs.Vault{Policies: []string{"default"}}
ctx := testTaskRunnerFromAlloc(t, false, alloc)
ctx.tr.MarkReceived()
defer ctx.Cleanup()
// Control when we get a Vault token
token := "1234"
count := 0
handler := func(*structs.Allocation, []string) (map[string]string, error) {
if count > 0 {
return map[string]string{task.Name: token}, nil
}
count++
return nil, structs.NewRecoverableError(fmt.Errorf("Want a retry"), true)
}
ctx.tr.vaultClient.(*vaultclient.MockVaultClient).DeriveTokenFn = handler
go ctx.tr.Run()
select {
case <-ctx.tr.WaitCh():
case <-time.After(time.Duration(testutil.TestMultiplier()*15) * time.Second):
t.Fatalf("timeout")
}
if len(ctx.upd.events) != 4 {
t.Fatalf("should have 4 ctx.updates: %#v", ctx.upd.events)
}
if ctx.upd.state != structs.TaskStateDead {
t.Fatalf("TaskState %v; want %v", ctx.upd.state, structs.TaskStateDead)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
t.Fatalf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if ctx.upd.events[1].Type != structs.TaskSetup {
t.Fatalf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskSetup)
}
if ctx.upd.events[2].Type != structs.TaskStarted {
t.Fatalf("Third Event was %v; want %v", ctx.upd.events[2].Type, structs.TaskStarted)
}
if ctx.upd.events[3].Type != structs.TaskTerminated {
t.Fatalf("Fourth Event was %v; want %v", ctx.upd.events[3].Type, structs.TaskTerminated)
}
// Check that the token is on disk
tokenPath := filepath.Join(ctx.tr.taskDir.SecretsDir, vaultTokenFile)
data, err := ioutil.ReadFile(tokenPath)
if err != nil {
t.Fatalf("Failed to read file: %v", err)
}
if act := string(data); act != token {
t.Fatalf("Token didn't get written to disk properly, got %q; want %q", act, token)
}
// Check the token was revoked
m := ctx.tr.vaultClient.(*vaultclient.MockVaultClient)
testutil.WaitForResult(func() (bool, error) {
if len(m.StoppedTokens) != 1 {
return false, fmt.Errorf("Expected a stopped token: %v", m.StoppedTokens)
}
if a := m.StoppedTokens[0]; a != token {
return false, fmt.Errorf("got stopped token %q; want %q", a, token)
}
return true, nil
}, func(err error) {
t.Fatalf("err: %v", err)
})
}
func TestTaskRunner_DeriveToken_Unrecoverable(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",
}
task.Vault = &structs.Vault{
Policies: []string{"default"},
ChangeMode: structs.VaultChangeModeRestart,
}
ctx := testTaskRunnerFromAlloc(t, false, alloc)
ctx.tr.MarkReceived()
defer ctx.Cleanup()
// Error the token derivation
vc := ctx.tr.vaultClient.(*vaultclient.MockVaultClient)
vc.SetDeriveTokenError(alloc.ID, []string{task.Name}, fmt.Errorf("Non recoverable"))
go ctx.tr.Run()
// Wait for the task to start
testutil.WaitForResult(func() (bool, error) {
if l := len(ctx.upd.events); l != 3 {
return false, fmt.Errorf("Expect 3 events; got %v", l)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
return false, fmt.Errorf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if ctx.upd.events[1].Type != structs.TaskSetup {
return false, fmt.Errorf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskSetup)
}
if ctx.upd.events[2].Type != structs.TaskKilling {
return false, fmt.Errorf("Third Event was %v; want %v", ctx.upd.events[2].Type, structs.TaskKilling)
}
return true, nil
}, func(err error) {
t.Fatalf("err: %v", err)
})
}
func TestTaskRunner_Template_Block(t *testing.T) {
t.Parallel()
testRetryRate = 2 * time.Second
defer func() {
testRetryRate = 0
}()
alloc := mock.Alloc()
task := alloc.Job.TaskGroups[0].Tasks[0]
task.Driver = "mock_driver"
task.Config = map[string]interface{}{
"exit_code": "0",
"run_for": "1s",
}
task.Templates = []*structs.Template{
{
EmbeddedTmpl: "{{key \"foo\"}}",
DestPath: "local/test",
ChangeMode: structs.TemplateChangeModeNoop,
},
}
ctx := testTaskRunnerFromAlloc(t, false, alloc)
ctx.tr.MarkReceived()
go ctx.tr.Run()
defer ctx.Cleanup()
select {
case <-ctx.tr.WaitCh():
t.Fatalf("premature exit")
case <-time.After(1 * time.Second):
}
if len(ctx.upd.events) != 2 {
t.Fatalf("should have 2 ctx.updates: %#v", ctx.upd.events)
}
if ctx.upd.state != structs.TaskStatePending {
t.Fatalf("TaskState %v; want %v", ctx.upd.state, structs.TaskStatePending)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
t.Fatalf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if ctx.upd.events[1].Type != structs.TaskSetup {
t.Fatalf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskSetup)
}
// Unblock
ctx.tr.UnblockStart("test")
select {
case <-ctx.tr.WaitCh():
case <-time.After(time.Duration(testutil.TestMultiplier()*15) * time.Second):
t.Fatalf("timeout")
}
if len(ctx.upd.events) != 4 {
t.Fatalf("should have 4 ctx.updates: %#v", ctx.upd.events)
}
if ctx.upd.state != structs.TaskStateDead {
t.Fatalf("TaskState %v; want %v", ctx.upd.state, structs.TaskStateDead)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
t.Fatalf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if ctx.upd.events[1].Type != structs.TaskSetup {
t.Fatalf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskSetup)
}
if ctx.upd.events[2].Type != structs.TaskStarted {
t.Fatalf("Third Event was %v; want %v", ctx.upd.events[2].Type, structs.TaskStarted)
}
if ctx.upd.events[3].Type != structs.TaskTerminated {
t.Fatalf("Fourth Event was %v; want %v", ctx.upd.events[3].Type, structs.TaskTerminated)
}
}
func TestTaskRunner_Template_Artifact(t *testing.T) {
t.Parallel()
dir, err := os.Getwd()
if err != nil {
t.Fatalf("bad: %v", err)
}
ts := httptest.NewServer(http.FileServer(http.Dir(filepath.Join(dir, ".."))))
defer ts.Close()
alloc := mock.Alloc()
task := alloc.Job.TaskGroups[0].Tasks[0]
task.Driver = "mock_driver"
task.Config = map[string]interface{}{
"exit_code": "0",
"run_for": "1s",
}
// Create an allocation that has a task that renders a template from an
// artifact
f1 := "CHANGELOG.md"
artifact := structs.TaskArtifact{
GetterSource: fmt.Sprintf("%s/%s", ts.URL, f1),
}
task.Artifacts = []*structs.TaskArtifact{&artifact}
task.Templates = []*structs.Template{
{
SourcePath: "CHANGELOG.md",
DestPath: "local/test",
ChangeMode: structs.TemplateChangeModeNoop,
},
}
ctx := testTaskRunnerFromAlloc(t, false, alloc)
ctx.tr.MarkReceived()
defer ctx.Cleanup()
go ctx.tr.Run()
select {
case <-ctx.tr.WaitCh():
case <-time.After(time.Duration(testutil.TestMultiplier()*15) * time.Second):
t.Fatalf("timeout")
}
if len(ctx.upd.events) != 5 {
t.Fatalf("should have 5 ctx.updates: %#v", ctx.upd.events)
}
if ctx.upd.state != structs.TaskStateDead {
t.Fatalf("TaskState %v; want %v", ctx.upd.state, structs.TaskStateDead)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
t.Fatalf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if ctx.upd.events[1].Type != structs.TaskSetup {
t.Fatalf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskSetup)
}
if ctx.upd.events[2].Type != structs.TaskDownloadingArtifacts {
t.Fatalf("Third Event was %v; want %v", ctx.upd.events[2].Type, structs.TaskDownloadingArtifacts)
}
if ctx.upd.events[3].Type != structs.TaskStarted {
t.Fatalf("Fourth Event was %v; want %v", ctx.upd.events[3].Type, structs.TaskStarted)
}
if ctx.upd.events[4].Type != structs.TaskTerminated {
t.Fatalf("Fifth Event was %v; want %v", ctx.upd.events[4].Type, structs.TaskTerminated)
}
// Check that both files exist.
if _, err := os.Stat(filepath.Join(ctx.tr.taskDir.Dir, f1)); err != nil {
t.Fatalf("%v not downloaded", f1)
}
if _, err := os.Stat(filepath.Join(ctx.tr.taskDir.LocalDir, "test")); err != nil {
t.Fatalf("template not rendered")
}
}
func TestTaskRunner_Template_NewVaultToken(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": "1s",
}
task.Templates = []*structs.Template{
{
EmbeddedTmpl: "{{key \"foo\"}}",
DestPath: "local/test",
ChangeMode: structs.TemplateChangeModeNoop,
},
}
task.Vault = &structs.Vault{Policies: []string{"default"}}
ctx := testTaskRunnerFromAlloc(t, false, alloc)
ctx.tr.MarkReceived()
defer ctx.Cleanup()
go ctx.tr.Run()
// Wait for a Vault token
var token string
testutil.WaitForResult(func() (bool, error) {
if token = ctx.tr.vaultFuture.Get(); token == "" {
return false, fmt.Errorf("No Vault token")
}
return true, nil
}, func(err error) {
t.Fatalf("err: %v", err)
})
// Error the token renewal
vc := ctx.tr.vaultClient.(*vaultclient.MockVaultClient)
renewalCh, ok := vc.RenewTokens[token]
if !ok {
t.Fatalf("no renewal channel")
}
originalManager := ctx.tr.templateManager
renewalCh <- fmt.Errorf("Test killing")
close(renewalCh)
// Wait for a new Vault token
var token2 string
testutil.WaitForResult(func() (bool, error) {
if token2 = ctx.tr.vaultFuture.Get(); token2 == "" || token2 == token {
return false, fmt.Errorf("No new Vault token")
}
if originalManager == ctx.tr.templateManager {
return false, fmt.Errorf("Template manager not ctx.updated")
}
return true, nil
}, func(err error) {
t.Fatalf("err: %v", err)
})
// Check the token was revoked
m := ctx.tr.vaultClient.(*vaultclient.MockVaultClient)
testutil.WaitForResult(func() (bool, error) {
if len(m.StoppedTokens) != 1 {
return false, fmt.Errorf("Expected a stopped token: %v", m.StoppedTokens)
}
if a := m.StoppedTokens[0]; a != token {
return false, fmt.Errorf("got stopped token %q; want %q", a, token)
}
return true, nil
}, func(err error) {
t.Fatalf("err: %v", err)
})
}
func TestTaskRunner_VaultManager_Restart(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",
}
task.Vault = &structs.Vault{
Policies: []string{"default"},
ChangeMode: structs.VaultChangeModeRestart,
}
ctx := testTaskRunnerFromAlloc(t, false, alloc)
ctx.tr.MarkReceived()
defer ctx.Cleanup()
go ctx.tr.Run()
// Wait for the task to start
testWaitForTaskToStart(t, ctx)
// Error the token renewal
vc := ctx.tr.vaultClient.(*vaultclient.MockVaultClient)
renewalCh, ok := vc.RenewTokens[ctx.tr.vaultFuture.Get()]
if !ok {
t.Fatalf("no renewal channel")
}
renewalCh <- fmt.Errorf("Test killing")
close(renewalCh)
// Ensure a restart
testutil.WaitForResult(func() (bool, error) {
if l := len(ctx.upd.events); l != 8 {
return false, fmt.Errorf("Expect eight events; got %#v", ctx.upd.events)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
return false, fmt.Errorf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if ctx.upd.events[1].Type != structs.TaskSetup {
return false, fmt.Errorf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskStarted)
}
if ctx.upd.events[2].Type != structs.TaskStarted {
return false, fmt.Errorf("Third Event was %v; want %v", ctx.upd.events[2].Type, structs.TaskStarted)
}
if ctx.upd.events[3].Type != structs.TaskRestartSignal {
return false, fmt.Errorf("Fourth Event was %v; want %v", ctx.upd.events[3].Type, structs.TaskRestartSignal)
}
if ctx.upd.events[4].Type != structs.TaskKilling {
return false, fmt.Errorf("Fifth Event was %v; want %v", ctx.upd.events[4].Type, structs.TaskKilling)
}
if ctx.upd.events[5].Type != structs.TaskKilled {
return false, fmt.Errorf("Sixth Event was %v; want %v", ctx.upd.events[5].Type, structs.TaskKilled)
}
if ctx.upd.events[6].Type != structs.TaskRestarting {
return false, fmt.Errorf("Seventh Event was %v; want %v", ctx.upd.events[6].Type, structs.TaskRestarting)
}
if ctx.upd.events[7].Type != structs.TaskStarted {
return false, fmt.Errorf("Eight Event was %v; want %v", ctx.upd.events[7].Type, structs.TaskStarted)
}
return true, nil
}, func(err error) {
t.Fatalf("err: %v", err)
})
}
func TestTaskRunner_VaultManager_Signal(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",
}
task.Vault = &structs.Vault{
Policies: []string{"default"},
ChangeMode: structs.VaultChangeModeSignal,
ChangeSignal: "SIGUSR1",
}
ctx := testTaskRunnerFromAlloc(t, false, alloc)
ctx.tr.MarkReceived()
go ctx.tr.Run()
defer ctx.Cleanup()
// Wait for the task to start
testWaitForTaskToStart(t, ctx)
// Error the token renewal
vc := ctx.tr.vaultClient.(*vaultclient.MockVaultClient)
renewalCh, ok := vc.RenewTokens[ctx.tr.vaultFuture.Get()]
if !ok {
t.Fatalf("no renewal channel")
}
renewalCh <- fmt.Errorf("Test killing")
close(renewalCh)
// Ensure a restart
testutil.WaitForResult(func() (bool, error) {
if l := len(ctx.upd.events); l != 4 {
return false, fmt.Errorf("Expect four events; got %#v", ctx.upd.events)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
return false, fmt.Errorf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if ctx.upd.events[1].Type != structs.TaskSetup {
return false, fmt.Errorf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskSetup)
}
if ctx.upd.events[2].Type != structs.TaskStarted {
return false, fmt.Errorf("Third Event was %v; want %v", ctx.upd.events[2].Type, structs.TaskStarted)
}
if ctx.upd.events[3].Type != structs.TaskSignaling {
return false, fmt.Errorf("Fourth Event was %v; want %v", ctx.upd.events[3].Type, structs.TaskSignaling)
}
return true, nil
}, func(err error) {
t.Fatalf("err: %v", err)
})
}
// Test that the payload is written to disk
func TestTaskRunner_SimpleRun_Dispatch(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": "1s",
}
fileName := "test"
task.DispatchPayload = &structs.DispatchPayloadConfig{
File: fileName,
}
alloc.Job.ParameterizedJob = &structs.ParameterizedJobConfig{}
// Add an encrypted payload
expected := []byte("hello world")
compressed := snappy.Encode(nil, expected)
alloc.Job.Payload = compressed
ctx := testTaskRunnerFromAlloc(t, false, alloc)
ctx.tr.MarkReceived()
defer ctx.tr.Destroy(structs.NewTaskEvent(structs.TaskKilled))
defer ctx.allocDir.Destroy()
go ctx.tr.Run()
select {
case <-ctx.tr.WaitCh():
case <-time.After(time.Duration(testutil.TestMultiplier()*15) * time.Second):
t.Fatalf("timeout")
}
if len(ctx.upd.events) != 4 {
t.Fatalf("should have 4 updates: %#v", ctx.upd.events)
}
if ctx.upd.state != structs.TaskStateDead {
t.Fatalf("TaskState %v; want %v", ctx.upd.state, structs.TaskStateDead)
}
if ctx.upd.events[0].Type != structs.TaskReceived {
t.Fatalf("First Event was %v; want %v", ctx.upd.events[0].Type, structs.TaskReceived)
}
if ctx.upd.events[1].Type != structs.TaskSetup {
t.Fatalf("Second Event was %v; want %v", ctx.upd.events[1].Type, structs.TaskSetup)
}
if ctx.upd.events[2].Type != structs.TaskStarted {
t.Fatalf("Third Event was %v; want %v", ctx.upd.events[2].Type, structs.TaskStarted)
}
if ctx.upd.events[3].Type != structs.TaskTerminated {
t.Fatalf("Fourth Event was %v; want %v", ctx.upd.events[3].Type, structs.TaskTerminated)
}
// Check that the file was written to disk properly
payloadPath := filepath.Join(ctx.tr.taskDir.LocalDir, fileName)
data, err := ioutil.ReadFile(payloadPath)
if err != nil {
t.Fatalf("Failed to read file: %v", err)
}
if !reflect.DeepEqual(data, expected) {
t.Fatalf("Bad; got %v; want %v", string(data), string(expected))
}
}
// TestTaskRunner_CleanupEmpty ensures TaskRunner works when createdResources
// is empty.
func TestTaskRunner_CleanupEmpty(t *testing.T) {
t.Parallel()
alloc := mock.Alloc()
task := alloc.Job.TaskGroups[0].Tasks[0]
task.Driver = "mock_driver"
ctx := testTaskRunnerFromAlloc(t, false, alloc)
ctx.tr.MarkReceived()
defer ctx.Cleanup()
ctx.tr.Run()
// Since we only failed once, createdResources should be empty
if len(ctx.tr.createdResources.Resources) != 0 {
t.Fatalf("createdResources should still be empty: %v", ctx.tr.createdResources)
}
}
func TestTaskRunner_CleanupOK(t *testing.T) {
t.Parallel()
alloc := mock.Alloc()
task := alloc.Job.TaskGroups[0].Tasks[0]
task.Driver = "mock_driver"
key := "ERR"
ctx := testTaskRunnerFromAlloc(t, false, alloc)
ctx.tr.config.Options = map[string]string{
"cleanup_fail_on": key,
"cleanup_fail_num": "1",
}
ctx.tr.MarkReceived()
ctx.tr.createdResources.Resources[key] = []string{"x", "y"}
ctx.tr.createdResources.Resources["foo"] = []string{"z"}
defer ctx.Cleanup()
ctx.tr.Run()
// Since we only failed once, createdResources should be empty
if len(ctx.tr.createdResources.Resources) > 0 {
t.Fatalf("expected all created resources to be removed: %#v", ctx.tr.createdResources.Resources)
}
}
func TestTaskRunner_CleanupFail(t *testing.T) {
t.Parallel()
alloc := mock.Alloc()
task := alloc.Job.TaskGroups[0].Tasks[0]
task.Driver = "mock_driver"
key := "ERR"
ctx := testTaskRunnerFromAlloc(t, false, alloc)
ctx.tr.config.Options = map[string]string{
"cleanup_fail_on": key,
"cleanup_fail_num": "5",
}
ctx.tr.MarkReceived()
ctx.tr.createdResources.Resources[key] = []string{"x"}
ctx.tr.createdResources.Resources["foo"] = []string{"y", "z"}
defer ctx.Cleanup()
ctx.tr.Run()
// Since we failed > 3 times, the failed key should remain
expected := map[string][]string{key: {"x"}}
if !reflect.DeepEqual(expected, ctx.tr.createdResources.Resources) {
t.Fatalf("expected %#v but found: %#v", expected, ctx.tr.createdResources.Resources)
}
}
func TestTaskRunner_Pre06ScriptCheck(t *testing.T) {
t.Parallel()
run := func(ver, driver, checkType string, exp bool) (string, func(t *testing.T)) {
name := fmt.Sprintf("%s %s %s returns %t", ver, driver, checkType, exp)
return name, func(t *testing.T) {
services := []*structs.Service{
{
Checks: []*structs.ServiceCheck{
{
Type: checkType,
},
},
},
}
if act := pre06ScriptCheck(ver, driver, services); act != exp {
t.Errorf("expected %t received %t", exp, act)
}
}
}
t.Run(run("0.5.6", "exec", "script", true))
t.Run(run("0.5.6", "java", "script", true))
t.Run(run("0.5.6", "mock_driver", "script", true))
t.Run(run("0.5.9", "exec", "script", true))
t.Run(run("0.5.9", "java", "script", true))
t.Run(run("0.5.9", "mock_driver", "script", true))
t.Run(run("0.6.0dev", "exec", "script", false))
t.Run(run("0.6.0dev", "java", "script", false))
t.Run(run("0.6.0dev", "mock_driver", "script", false))
t.Run(run("0.6.0", "exec", "script", false))
t.Run(run("0.6.0", "java", "script", false))
t.Run(run("0.6.0", "mock_driver", "script", false))
t.Run(run("1.0.0", "exec", "script", false))
t.Run(run("1.0.0", "java", "script", false))
t.Run(run("1.0.0", "mock_driver", "script", false))
t.Run(run("0.5.6", "rkt", "script", false))
t.Run(run("0.5.6", "docker", "script", false))
t.Run(run("0.5.6", "qemu", "script", false))
t.Run(run("0.5.6", "raw_exec", "script", false))
t.Run(run("0.5.6", "invalid", "script", false))
t.Run(run("0.5.6", "exec", "tcp", false))
t.Run(run("0.5.6", "java", "tcp", false))
t.Run(run("0.5.6", "mock_driver", "tcp", false))
}