Golang ptypes.DurationProto函數代碼示例

func TestHealthcheck(t *testing.T) {
	c := containerConfig{
		task: &api.Task{
			Spec: api.TaskSpec{Runtime: &api.TaskSpec_Container{
				Container: &api.ContainerSpec{
					Healthcheck: &api.HealthConfig{
						Test:     []string{"a", "b", "c"},
						Interval: ptypes.DurationProto(time.Second),
						Timeout:  ptypes.DurationProto(time.Minute),
						Retries:  10,
					},
				},
			}},
		},
	}
	config := c.config()
	expected := &enginecontainer.HealthConfig{
		Test:     []string{"a", "b", "c"},
		Interval: time.Second,
		Timeout:  time.Minute,
		Retries:  10,
	}
	if !reflect.DeepEqual(config.Healthcheck, expected) {
		t.Fatalf("expected %#v, got %#v", expected, config.Healthcheck)
	}
}

func restartPolicyToGRPC(p *types.RestartPolicy) (*swarmapi.RestartPolicy, error) {
	var rp *swarmapi.RestartPolicy
	if p != nil {
		rp = &swarmapi.RestartPolicy{}

		switch p.Condition {
		case types.RestartPolicyConditionNone:
			rp.Condition = swarmapi.RestartOnNone
		case types.RestartPolicyConditionOnFailure:
			rp.Condition = swarmapi.RestartOnFailure
		case types.RestartPolicyConditionAny:
			rp.Condition = swarmapi.RestartOnAny
		default:
			if string(p.Condition) != "" {
				return nil, fmt.Errorf("invalid RestartCondition: %q", p.Condition)
			}
			rp.Condition = swarmapi.RestartOnAny
		}

		if p.Delay != nil {
			rp.Delay = ptypes.DurationProto(*p.Delay)
		}
		if p.Window != nil {
			rp.Window = ptypes.DurationProto(*p.Window)
		}
		if p.MaxAttempts != nil {
			rp.MaxAttempts = *p.MaxAttempts

		}
	}
	return rp, nil
}

func restartPolicyToGRPC(p *types.RestartPolicy) (*swarmapi.RestartPolicy, error) {
	var rp *swarmapi.RestartPolicy
	if p != nil {
		rp = &swarmapi.RestartPolicy{}
		sanatizedCondition := strings.ToUpper(strings.Replace(string(p.Condition), "-", "_", -1))
		if condition, ok := swarmapi.RestartPolicy_RestartCondition_value[sanatizedCondition]; ok {
			rp.Condition = swarmapi.RestartPolicy_RestartCondition(condition)
		} else if string(p.Condition) == "" {
			rp.Condition = swarmapi.RestartOnAny
		} else {
			return nil, fmt.Errorf("invalid RestartCondition: %q", p.Condition)
		}

		if p.Delay != nil {
			rp.Delay = ptypes.DurationProto(*p.Delay)
		}
		if p.Window != nil {
			rp.Window = ptypes.DurationProto(*p.Window)
		}
		if p.MaxAttempts != nil {
			rp.MaxAttempts = *p.MaxAttempts

		}
	}
	return rp, nil
}

// SwarmSpecToGRPCandMerge converts a Spec to a grpc ClusterSpec and merge AcceptancePolicy from an existing grpc ClusterSpec if provided.
func SwarmSpecToGRPCandMerge(s types.Spec, existingSpec *swarmapi.ClusterSpec) (swarmapi.ClusterSpec, error) {
	spec := swarmapi.ClusterSpec{
		Annotations: swarmapi.Annotations{
			Name:   s.Name,
			Labels: s.Labels,
		},
		Orchestration: swarmapi.OrchestrationConfig{
			TaskHistoryRetentionLimit: s.Orchestration.TaskHistoryRetentionLimit,
		},
		Raft: swarmapi.RaftConfig{
			SnapshotInterval:           s.Raft.SnapshotInterval,
			KeepOldSnapshots:           s.Raft.KeepOldSnapshots,
			LogEntriesForSlowFollowers: s.Raft.LogEntriesForSlowFollowers,
			HeartbeatTick:              s.Raft.HeartbeatTick,
			ElectionTick:               s.Raft.ElectionTick,
		},
		Dispatcher: swarmapi.DispatcherConfig{
			HeartbeatPeriod: ptypes.DurationProto(time.Duration(s.Dispatcher.HeartbeatPeriod)),
		},
		CAConfig: swarmapi.CAConfig{
			NodeCertExpiry: ptypes.DurationProto(s.CAConfig.NodeCertExpiry),
		},
	}

	if err := SwarmSpecUpdateAcceptancePolicy(&spec, s.AcceptancePolicy, existingSpec); err != nil {
		return swarmapi.ClusterSpec{}, err
	}

	return spec, nil
}

// MergeSwarmSpecToGRPC merges a Spec with an initial grpc ClusterSpec
func MergeSwarmSpecToGRPC(s types.Spec, spec swarmapi.ClusterSpec) (swarmapi.ClusterSpec, error) {
	// We take the initSpec (either created from scratch, or returned by swarmkit),
	// and will only change the value if the one taken from types.Spec is not nil or 0.
	// In other words, if the value taken from types.Spec is nil or 0, we will maintain the status quo.
	if s.Annotations.Name != "" {
		spec.Annotations.Name = s.Annotations.Name
	}
	if len(s.Annotations.Labels) != 0 {
		spec.Annotations.Labels = s.Annotations.Labels
	}

	if s.Orchestration.TaskHistoryRetentionLimit != nil {
		spec.Orchestration.TaskHistoryRetentionLimit = *s.Orchestration.TaskHistoryRetentionLimit
	}
	if s.Raft.SnapshotInterval != 0 {
		spec.Raft.SnapshotInterval = s.Raft.SnapshotInterval
	}
	if s.Raft.KeepOldSnapshots != nil {
		spec.Raft.KeepOldSnapshots = *s.Raft.KeepOldSnapshots
	}
	if s.Raft.LogEntriesForSlowFollowers != 0 {
		spec.Raft.LogEntriesForSlowFollowers = s.Raft.LogEntriesForSlowFollowers
	}
	if s.Raft.HeartbeatTick != 0 {
		spec.Raft.HeartbeatTick = uint32(s.Raft.HeartbeatTick)
	}
	if s.Raft.ElectionTick != 0 {
		spec.Raft.ElectionTick = uint32(s.Raft.ElectionTick)
	}
	if s.Dispatcher.HeartbeatPeriod != 0 {
		spec.Dispatcher.HeartbeatPeriod = ptypes.DurationProto(time.Duration(s.Dispatcher.HeartbeatPeriod))
	}
	if s.CAConfig.NodeCertExpiry != 0 {
		spec.CAConfig.NodeCertExpiry = ptypes.DurationProto(s.CAConfig.NodeCertExpiry)
	}

	for _, ca := range s.CAConfig.ExternalCAs {
		protocol, ok := swarmapi.ExternalCA_CAProtocol_value[strings.ToUpper(string(ca.Protocol))]
		if !ok {
			return swarmapi.ClusterSpec{}, fmt.Errorf("invalid protocol: %q", ca.Protocol)
		}
		spec.CAConfig.ExternalCAs = append(spec.CAConfig.ExternalCAs, &swarmapi.ExternalCA{
			Protocol: swarmapi.ExternalCA_CAProtocol(protocol),
			URL:      ca.URL,
			Options:  ca.Options,
		})
	}

	spec.EncryptionConfig.AutoLockManagers = s.EncryptionConfig.AutoLockManagers

	return spec, nil
}

// defaultClusterObject creates a default cluster.
func defaultClusterObject(clusterID string, initialCAConfig api.CAConfig, raftCfg api.RaftConfig, rootCA *ca.RootCA) *api.Cluster {
	return &api.Cluster{
		ID: clusterID,
		Spec: api.ClusterSpec{
			Annotations: api.Annotations{
				Name: store.DefaultClusterName,
			},
			Orchestration: api.OrchestrationConfig{
				TaskHistoryRetentionLimit: defaultTaskHistoryRetentionLimit,
			},
			Dispatcher: api.DispatcherConfig{
				HeartbeatPeriod: ptypes.DurationProto(dispatcher.DefaultHeartBeatPeriod),
			},
			Raft:     raftCfg,
			CAConfig: initialCAConfig,
		},
		RootCA: api.RootCA{
			CAKey:      rootCA.Key,
			CACert:     rootCA.Cert,
			CACertHash: rootCA.Digest.String(),
			JoinTokens: api.JoinTokens{
				Worker:  ca.GenerateJoinToken(rootCA),
				Manager: ca.GenerateJoinToken(rootCA),
			},
		},
	}
}

func TestValidateClusterSpec(t *testing.T) {
	type BadClusterSpec struct {
		spec *api.ClusterSpec
		c    codes.Code
	}

	for _, bad := range []BadClusterSpec{
		{
			spec: nil,
			c:    codes.InvalidArgument,
		},
		{
			spec: &api.ClusterSpec{
				Annotations: api.Annotations{
					Name: "name",
				},
				CAConfig: api.CAConfig{
					NodeCertExpiry: ptypes.DurationProto(29 * time.Minute),
				},
			},
			c: codes.InvalidArgument,
		},
		{
			spec: &api.ClusterSpec{
				Annotations: api.Annotations{
					Name: "name",
				},
				Dispatcher: api.DispatcherConfig{
					HeartbeatPeriod: ptypes.DurationProto(-29 * time.Minute),
				},
			},
			c: codes.InvalidArgument,
		},
	} {
		err := validateClusterSpec(bad.spec)
		assert.Error(t, err)
		assert.Equal(t, bad.c, grpc.Code(err))
	}

	for _, good := range []*api.ClusterSpec{
		createClusterSpec("name"),
	} {
		err := validateClusterSpec(good)
		assert.NoError(t, err)
	}
}

func containerToGRPC(c types.ContainerSpec) (*swarmapi.ContainerSpec, error) {
	containerSpec := &swarmapi.ContainerSpec{
		Image:   c.Image,
		Labels:  c.Labels,
		Command: c.Command,
		Args:    c.Args,
		Env:     c.Env,
		Dir:     c.Dir,
		User:    c.User,
		Groups:  c.Groups,
	}

	if c.StopGracePeriod != nil {
		containerSpec.StopGracePeriod = ptypes.DurationProto(*c.StopGracePeriod)
	}

	// Mounts
	for _, m := range c.Mounts {
		mount := swarmapi.Mount{
			Target:   m.Target,
			Source:   m.Source,
			ReadOnly: m.ReadOnly,
		}

		if mountType, ok := swarmapi.Mount_MountType_value[strings.ToUpper(string(m.Type))]; ok {
			mount.Type = swarmapi.Mount_MountType(mountType)
		} else if string(m.Type) != "" {
			return nil, fmt.Errorf("invalid MountType: %q", m.Type)
		}

		if m.BindOptions != nil {
			if mountPropagation, ok := swarmapi.Mount_BindOptions_MountPropagation_value[strings.ToUpper(string(m.BindOptions.Propagation))]; ok {
				mount.BindOptions = &swarmapi.Mount_BindOptions{Propagation: swarmapi.Mount_BindOptions_MountPropagation(mountPropagation)}
			} else if string(m.BindOptions.Propagation) != "" {
				return nil, fmt.Errorf("invalid MountPropagation: %q", m.BindOptions.Propagation)

			}

		}

		if m.VolumeOptions != nil {
			mount.VolumeOptions = &swarmapi.Mount_VolumeOptions{
				NoCopy: m.VolumeOptions.NoCopy,
				Labels: m.VolumeOptions.Labels,
			}
			if m.VolumeOptions.DriverConfig != nil {
				mount.VolumeOptions.DriverConfig = &swarmapi.Driver{
					Name:    m.VolumeOptions.DriverConfig.Name,
					Options: m.VolumeOptions.DriverConfig.Options,
				}
			}
		}

		containerSpec.Mounts = append(containerSpec.Mounts, mount)
	}

	return containerSpec, nil
}

func createClusterSpec(name string) *api.ClusterSpec {
	return &api.ClusterSpec{
		Annotations: api.Annotations{
			Name: name,
		},
		CAConfig: api.CAConfig{
			NodeCertExpiry: ptypes.DurationProto(ca.DefaultNodeCertExpiration),
		},
	}
}

// SwarmSpecToGRPCandMerge converts a Spec to a grpc ClusterSpec and merge AcceptancePolicy from an existing grpc ClusterSpec if provided.
func SwarmSpecToGRPCandMerge(s types.Spec, existingSpec *swarmapi.ClusterSpec) (swarmapi.ClusterSpec, error) {
	spec := swarmapi.ClusterSpec{
		Annotations: swarmapi.Annotations{
			Name:   s.Name,
			Labels: s.Labels,
		},
		Orchestration: swarmapi.OrchestrationConfig{
			TaskHistoryRetentionLimit: s.Orchestration.TaskHistoryRetentionLimit,
		},
		Raft: swarmapi.RaftConfig{
			SnapshotInterval:           s.Raft.SnapshotInterval,
			KeepOldSnapshots:           s.Raft.KeepOldSnapshots,
			LogEntriesForSlowFollowers: s.Raft.LogEntriesForSlowFollowers,
			HeartbeatTick:              s.Raft.HeartbeatTick,
			ElectionTick:               s.Raft.ElectionTick,
		},
		Dispatcher: swarmapi.DispatcherConfig{
			HeartbeatPeriod: ptypes.DurationProto(time.Duration(s.Dispatcher.HeartbeatPeriod)),
		},
		CAConfig: swarmapi.CAConfig{
			NodeCertExpiry: ptypes.DurationProto(s.CAConfig.NodeCertExpiry),
		},
	}

	for _, ca := range s.CAConfig.ExternalCAs {
		protocol, ok := swarmapi.ExternalCA_CAProtocol_value[strings.ToUpper(string(ca.Protocol))]
		if !ok {
			return swarmapi.ClusterSpec{}, fmt.Errorf("invalid protocol: %q", ca.Protocol)
		}
		spec.CAConfig.ExternalCAs = append(spec.CAConfig.ExternalCAs, &swarmapi.ExternalCA{
			Protocol: swarmapi.ExternalCA_CAProtocol(protocol),
			URL:      ca.URL,
			Options:  ca.Options,
		})
	}

	if err := SwarmSpecUpdateAcceptancePolicy(&spec, s.AcceptancePolicy, existingSpec); err != nil {
		return swarmapi.ClusterSpec{}, err
	}

	return spec, nil
}

func TestValidateRestartPolicy(t *testing.T) {
	bad := []*api.RestartPolicy{
		{
			Delay:  ptypes.DurationProto(time.Duration(-1 * time.Second)),
			Window: ptypes.DurationProto(time.Duration(-1 * time.Second)),
		},
		{
			Delay:  ptypes.DurationProto(time.Duration(20 * time.Second)),
			Window: ptypes.DurationProto(time.Duration(-4 * time.Second)),
		},
	}

	good := []*api.RestartPolicy{
		{
			Delay:  ptypes.DurationProto(time.Duration(10 * time.Second)),
			Window: ptypes.DurationProto(time.Duration(1 * time.Second)),
		},
	}

	for _, b := range bad {
		err := validateRestartPolicy(b)
		assert.Error(t, err)
		assert.Equal(t, codes.InvalidArgument, grpc.Code(err))
	}

	for _, g := range good {
		assert.NoError(t, validateRestartPolicy(g))
	}
}

// Run starts all manager sub-systems and the gRPC server at the configured
// address.
// The call never returns unless an error occurs or `Stop()` is called.
//
// TODO(aluzzardi): /!\ This function is *way* too complex. /!\
// It needs to be split into smaller manageable functions.
func (m *Manager) Run(parent context.Context) error {
	ctx, ctxCancel := context.WithCancel(parent)
	defer ctxCancel()

	// Harakiri.
	go func() {
		select {
		case <-ctx.Done():
		case <-m.stopped:
			ctxCancel()
		}
	}()

	leadershipCh, cancel := m.RaftNode.SubscribeLeadership()
	defer cancel()

	go func() {
		for leadershipEvent := range leadershipCh {
			// read out and discard all of the messages when we've stopped
			// don't acquire the mutex yet. if stopped is closed, we don't need
			// this stops this loop from starving Run()'s attempt to Lock
			select {
			case <-m.stopped:
				continue
			default:
				// do nothing, we're not stopped
			}
			// we're not stopping so NOW acquire the mutex
			m.mu.Lock()
			newState := leadershipEvent.(raft.LeadershipState)

			if newState == raft.IsLeader {
				s := m.RaftNode.MemoryStore()

				rootCA := m.config.SecurityConfig.RootCA()
				nodeID := m.config.SecurityConfig.ClientTLSCreds.NodeID()

				raftCfg := raft.DefaultRaftConfig()
				raftCfg.ElectionTick = uint32(m.RaftNode.Config.ElectionTick)
				raftCfg.HeartbeatTick = uint32(m.RaftNode.Config.HeartbeatTick)

				clusterID := m.config.SecurityConfig.ClientTLSCreds.Organization()

				initialCAConfig := ca.DefaultCAConfig()
				initialCAConfig.ExternalCAs = m.config.ExternalCAs

				s.Update(func(tx store.Tx) error {
					// Add a default cluster object to the
					// store. Don't check the error because
					// we expect this to fail unless this
					// is a brand new cluster.
					store.CreateCluster(tx, &api.Cluster{
						ID: clusterID,
						Spec: api.ClusterSpec{
							Annotations: api.Annotations{
								Name: store.DefaultClusterName,
							},
							Orchestration: api.OrchestrationConfig{
								TaskHistoryRetentionLimit: defaultTaskHistoryRetentionLimit,
							},
							Dispatcher: api.DispatcherConfig{
								HeartbeatPeriod: ptypes.DurationProto(dispatcher.DefaultHeartBeatPeriod),
							},
							Raft:     raftCfg,
							CAConfig: initialCAConfig,
						},
						RootCA: api.RootCA{
							CAKey:      rootCA.Key,
							CACert:     rootCA.Cert,
							CACertHash: rootCA.Digest.String(),
							JoinTokens: api.JoinTokens{
								Worker:  ca.GenerateJoinToken(rootCA),
								Manager: ca.GenerateJoinToken(rootCA),
							},
						},
					})
					// Add Node entry for ourself, if one
					// doesn't exist already.
					store.CreateNode(tx, &api.Node{
						ID: nodeID,
						Certificate: api.Certificate{
							CN:   nodeID,
							Role: api.NodeRoleManager,
							Status: api.IssuanceStatus{
								State: api.IssuanceStateIssued,
							},
						},
						Spec: api.NodeSpec{
							Role:       api.NodeRoleManager,
							Membership: api.NodeMembershipAccepted,
						},
					})
					return nil
				})
//.........這裏部分代碼省略.........

func TestUpdaterRollback(t *testing.T) {
	ctx := context.Background()
	s := store.NewMemoryStore(nil)
	assert.NotNil(t, s)
	defer s.Close()

	orchestrator := NewReplicatedOrchestrator(s)
	defer orchestrator.Stop()

	var (
		failImage1 uint32
		failImage2 uint32
	)

	watchCreate, cancelCreate := state.Watch(s.WatchQueue(), state.EventCreateTask{})
	defer cancelCreate()

	watchServiceUpdate, cancelServiceUpdate := state.Watch(s.WatchQueue(), state.EventUpdateService{})
	defer cancelServiceUpdate()

	// Fail new tasks the updater tries to run
	watchUpdate, cancelUpdate := state.Watch(s.WatchQueue(), state.EventUpdateTask{})
	defer cancelUpdate()
	go func() {
		failedLast := false
		for {
			select {
			case e := <-watchUpdate:
				task := e.(state.EventUpdateTask).Task
				if task.DesiredState == task.Status.State {
					continue
				}
				if task.DesiredState == api.TaskStateRunning && task.Status.State != api.TaskStateFailed && task.Status.State != api.TaskStateRunning {
					err := s.Update(func(tx store.Tx) error {
						task = store.GetTask(tx, task.ID)
						// Never fail two image2 tasks in a row, so there's a mix of
						// failed and successful tasks for the rollback.
						if task.Spec.GetContainer().Image == "image1" && atomic.LoadUint32(&failImage1) == 1 {
							task.Status.State = api.TaskStateFailed
							failedLast = true
						} else if task.Spec.GetContainer().Image == "image2" && atomic.LoadUint32(&failImage2) == 1 && !failedLast {
							task.Status.State = api.TaskStateFailed
							failedLast = true
						} else {
							task.Status.State = task.DesiredState
							failedLast = false
						}
						return store.UpdateTask(tx, task)
					})
					assert.NoError(t, err)
				} else if task.DesiredState > api.TaskStateRunning {
					err := s.Update(func(tx store.Tx) error {
						task = store.GetTask(tx, task.ID)
						task.Status.State = task.DesiredState
						return store.UpdateTask(tx, task)
					})
					assert.NoError(t, err)
				}
			}
		}
	}()

	// Create a service with four replicas specified before the orchestrator
	// is started. This should result in two tasks when the orchestrator
	// starts up.
	err := s.Update(func(tx store.Tx) error {
		s1 := &api.Service{
			ID: "id1",
			Spec: api.ServiceSpec{
				Annotations: api.Annotations{
					Name: "name1",
				},
				Task: api.TaskSpec{
					Runtime: &api.TaskSpec_Container{
						Container: &api.ContainerSpec{
							Image: "image1",
						},
					},
					Restart: &api.RestartPolicy{
						Condition: api.RestartOnNone,
					},
				},
				Mode: &api.ServiceSpec_Replicated{
					Replicated: &api.ReplicatedService{
						Replicas: 4,
					},
				},
				Update: &api.UpdateConfig{
					FailureAction:   api.UpdateConfig_ROLLBACK,
					Parallelism:     1,
					Delay:           *ptypes.DurationProto(10 * time.Millisecond),
					Monitor:         ptypes.DurationProto(500 * time.Millisecond),
					MaxFailureRatio: 0.4,
				},
			},
		}

		assert.NoError(t, store.CreateService(tx, s1))
		return nil
	})
//.........這裏部分代碼省略.........

// DefaultCAConfig returns the default CA Config, with a default expiration.
func DefaultCAConfig() api.CAConfig {
	return api.CAConfig{
		NodeCertExpiry: ptypes.DurationProto(DefaultNodeCertExpiration),
	}
}

func TestOrchestratorRestartOnAny(t *testing.T) {
	ctx := context.Background()
	s := store.NewMemoryStore(nil)
	assert.NotNil(t, s)

	orchestrator := NewReplicatedOrchestrator(s)
	defer orchestrator.Stop()

	watch, cancel := state.Watch(s.WatchQueue() /*state.EventCreateTask{}, state.EventUpdateTask{}*/)
	defer cancel()

	// Create a service with two instances specified before the orchestrator is
	// started. This should result in two tasks when the orchestrator
	// starts up.
	err := s.Update(func(tx store.Tx) error {
		j1 := &api.Service{
			ID: "id1",
			Spec: api.ServiceSpec{
				Annotations: api.Annotations{
					Name: "name1",
				},
				Task: api.TaskSpec{
					Runtime: &api.TaskSpec_Container{
						Container: &api.ContainerSpec{},
					},
					Restart: &api.RestartPolicy{
						Condition: api.RestartOnAny,
						Delay:     ptypes.DurationProto(0),
					},
				},
				Mode: &api.ServiceSpec_Replicated{
					Replicated: &api.ReplicatedService{
						Replicas: 2,
					},
				},
			},
		}
		assert.NoError(t, store.CreateService(tx, j1))
		return nil
	})
	assert.NoError(t, err)

	// Start the orchestrator.
	go func() {
		assert.NoError(t, orchestrator.Run(ctx))
	}()

	observedTask1 := watchTaskCreate(t, watch)
	assert.Equal(t, observedTask1.Status.State, api.TaskStateNew)
	assert.Equal(t, observedTask1.ServiceAnnotations.Name, "name1")

	observedTask2 := watchTaskCreate(t, watch)
	assert.Equal(t, observedTask2.Status.State, api.TaskStateNew)
	assert.Equal(t, observedTask2.ServiceAnnotations.Name, "name1")

	// Fail the first task. Confirm that it gets restarted.
	updatedTask1 := observedTask1.Copy()
	updatedTask1.Status = api.TaskStatus{State: api.TaskStateFailed}
	err = s.Update(func(tx store.Tx) error {
		assert.NoError(t, store.UpdateTask(tx, updatedTask1))
		return nil
	})
	assert.NoError(t, err)
	expectCommit(t, watch)
	expectTaskUpdate(t, watch)
	expectCommit(t, watch)
	expectTaskUpdate(t, watch)

	observedTask3 := watchTaskCreate(t, watch)
	assert.Equal(t, observedTask3.Status.State, api.TaskStateNew)
	assert.Equal(t, observedTask3.ServiceAnnotations.Name, "name1")

	expectCommit(t, watch)

	observedTask4 := watchTaskUpdate(t, watch)
	assert.Equal(t, observedTask4.DesiredState, api.TaskStateRunning)
	assert.Equal(t, observedTask4.ServiceAnnotations.Name, "name1")

	// Mark the second task as completed. Confirm that it gets restarted.
	updatedTask2 := observedTask2.Copy()
	updatedTask2.Status = api.TaskStatus{State: api.TaskStateCompleted}
	err = s.Update(func(tx store.Tx) error {
		assert.NoError(t, store.UpdateTask(tx, updatedTask2))
		return nil
	})
	assert.NoError(t, err)
	expectCommit(t, watch)
	expectTaskUpdate(t, watch)
	expectCommit(t, watch)
	expectTaskUpdate(t, watch)

	observedTask5 := watchTaskCreate(t, watch)
	assert.Equal(t, observedTask5.Status.State, api.TaskStateNew)
	assert.Equal(t, observedTask5.ServiceAnnotations.Name, "name1")

	expectCommit(t, watch)

	observedTask6 := watchTaskUpdate(t, watch)
	assert.Equal(t, observedTask6.DesiredState, api.TaskStateRunning)
	assert.Equal(t, observedTask6.ServiceAnnotations.Name, "name1")
//.........這裏部分代碼省略.........