Golang ptypes.Duration函數代碼示例

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

		switch p.Condition {
		case swarmapi.RestartOnNone:
			rp.Condition = types.RestartPolicyConditionNone
		case swarmapi.RestartOnFailure:
			rp.Condition = types.RestartPolicyConditionOnFailure
		case swarmapi.RestartOnAny:
			rp.Condition = types.RestartPolicyConditionAny
		default:
			rp.Condition = types.RestartPolicyConditionAny
		}

		if p.Delay != nil {
			delay, _ := ptypes.Duration(p.Delay)
			rp.Delay = &delay
		}
		if p.Window != nil {
			window, _ := ptypes.Duration(p.Window)
			rp.Window = &window
		}

		rp.MaxAttempts = &p.MaxAttempts
	}
	return rp
}

func validateRestartPolicy(rp *api.RestartPolicy) error {
	if rp == nil {
		return nil
	}

	if rp.Delay != nil {
		delay, err := ptypes.Duration(rp.Delay)
		if err != nil {
			return err
		}
		if delay < 0 {
			return grpc.Errorf(codes.InvalidArgument, "TaskSpec: restart-delay cannot be negative")
		}
	}

	if rp.Window != nil {
		win, err := ptypes.Duration(rp.Window)
		if err != nil {
			return err
		}
		if win < 0 {
			return grpc.Errorf(codes.InvalidArgument, "TaskSpec: restart-window cannot be negative")
		}
	}

	return nil
}

func printClusterSummary(cluster *api.Cluster) {
	w := tabwriter.NewWriter(os.Stdout, 8, 8, 8, ' ', 0)
	defer w.Flush()

	common.FprintfIfNotEmpty(w, "ID\t: %s\n", cluster.ID)
	common.FprintfIfNotEmpty(w, "Name\t: %s\n", cluster.Spec.Annotations.Name)
	fmt.Fprintf(w, "Orchestration settings:\n")
	fmt.Fprintf(w, "  Task history entries: %d\n", cluster.Spec.Orchestration.TaskHistoryRetentionLimit)

	heartbeatPeriod, err := ptypes.Duration(cluster.Spec.Dispatcher.HeartbeatPeriod)
	if err == nil {
		fmt.Fprintf(w, "Dispatcher settings:\n")
		fmt.Fprintf(w, "  Dispatcher heartbeat period: %s\n", heartbeatPeriod.String())
	}

	fmt.Fprintf(w, "Certificate Authority settings:\n")
	if cluster.Spec.CAConfig.NodeCertExpiry != nil {
		clusterDuration, err := ptypes.Duration(cluster.Spec.CAConfig.NodeCertExpiry)
		if err != nil {
			fmt.Fprintf(w, "  Certificate Validity Duration: [ERROR PARSING DURATION]\n")
		} else {
			fmt.Fprintf(w, "  Certificate Validity Duration: %s\n", clusterDuration.String())
		}
	}
	if len(cluster.Spec.CAConfig.ExternalCAs) > 0 {
		fmt.Fprintf(w, "  External CAs:\n")
		for _, ca := range cluster.Spec.CAConfig.ExternalCAs {
			fmt.Fprintf(w, "    %s: %s\n", ca.Protocol, ca.URL)
		}
	}

	fmt.Fprintln(w, "  Join Tokens:")
	fmt.Fprintln(w, "    Worker:", cluster.RootCA.JoinTokens.Worker)
	fmt.Fprintln(w, "    Manager:", cluster.RootCA.JoinTokens.Manager)

	if cluster.Spec.TaskDefaults.LogDriver != nil {
		fmt.Fprintf(w, "Default Log Driver\t: %s\n", cluster.Spec.TaskDefaults.LogDriver.Name)
		var keys []string

		if len(cluster.Spec.TaskDefaults.LogDriver.Options) != 0 {
			for k := range cluster.Spec.TaskDefaults.LogDriver.Options {
				keys = append(keys, k)
			}
			sort.Strings(keys)

			for _, k := range keys {
				v := cluster.Spec.TaskDefaults.LogDriver.Options[k]
				if v != "" {
					fmt.Fprintf(w, "  %s\t: %s\n", k, v)
				} else {
					fmt.Fprintf(w, "  %s\t\n", k)

				}
			}
		}
	}
}

// SwarmFromGRPC converts a grpc Cluster to a Swarm.
func SwarmFromGRPC(c swarmapi.Cluster) types.Swarm {
	swarm := types.Swarm{
		ID: c.ID,
		Spec: types.Spec{
			Orchestration: types.OrchestrationConfig{
				TaskHistoryRetentionLimit: c.Spec.Orchestration.TaskHistoryRetentionLimit,
			},
			Raft: types.RaftConfig{
				SnapshotInterval:           c.Spec.Raft.SnapshotInterval,
				KeepOldSnapshots:           c.Spec.Raft.KeepOldSnapshots,
				LogEntriesForSlowFollowers: c.Spec.Raft.LogEntriesForSlowFollowers,
				HeartbeatTick:              c.Spec.Raft.HeartbeatTick,
				ElectionTick:               c.Spec.Raft.ElectionTick,
			},
		},
	}

	heartbeatPeriod, _ := ptypes.Duration(c.Spec.Dispatcher.HeartbeatPeriod)
	swarm.Spec.Dispatcher.HeartbeatPeriod = uint64(heartbeatPeriod)

	swarm.Spec.CAConfig.NodeCertExpiry, _ = ptypes.Duration(c.Spec.CAConfig.NodeCertExpiry)

	for _, ca := range c.Spec.CAConfig.ExternalCAs {
		swarm.Spec.CAConfig.ExternalCAs = append(swarm.Spec.CAConfig.ExternalCAs, &types.ExternalCA{
			Protocol: types.ExternalCAProtocol(strings.ToLower(ca.Protocol.String())),
			URL:      ca.URL,
			Options:  ca.Options,
		})
	}

	// Meta
	swarm.Version.Index = c.Meta.Version.Index
	swarm.CreatedAt, _ = ptypes.Timestamp(c.Meta.CreatedAt)
	swarm.UpdatedAt, _ = ptypes.Timestamp(c.Meta.UpdatedAt)

	// Annotations
	swarm.Spec.Name = c.Spec.Annotations.Name
	swarm.Spec.Labels = c.Spec.Annotations.Labels

	for _, policy := range c.Spec.AcceptancePolicy.Policies {
		p := types.Policy{
			Role:       types.NodeRole(strings.ToLower(policy.Role.String())),
			Autoaccept: policy.Autoaccept,
		}
		if policy.Secret != nil {
			secret := string(policy.Secret.Data)
			p.Secret = &secret
		}
		swarm.Spec.AcceptancePolicy.Policies = append(swarm.Spec.AcceptancePolicy.Policies, p)
	}

	return swarm
}

// SwarmFromGRPC converts a grpc Cluster to a Swarm.
func SwarmFromGRPC(c swarmapi.Cluster) types.Swarm {
	swarm := types.Swarm{
		ClusterInfo: types.ClusterInfo{
			ID: c.ID,
			Spec: types.Spec{
				Orchestration: types.OrchestrationConfig{
					TaskHistoryRetentionLimit: &c.Spec.Orchestration.TaskHistoryRetentionLimit,
				},
				Raft: types.RaftConfig{
					SnapshotInterval:           c.Spec.Raft.SnapshotInterval,
					KeepOldSnapshots:           &c.Spec.Raft.KeepOldSnapshots,
					LogEntriesForSlowFollowers: c.Spec.Raft.LogEntriesForSlowFollowers,
					HeartbeatTick:              int(c.Spec.Raft.HeartbeatTick),
					ElectionTick:               int(c.Spec.Raft.ElectionTick),
				},
				EncryptionConfig: types.EncryptionConfig{
					AutoLockManagers: c.Spec.EncryptionConfig.AutoLockManagers,
				},
			},
		},
		JoinTokens: types.JoinTokens{
			Worker:  c.RootCA.JoinTokens.Worker,
			Manager: c.RootCA.JoinTokens.Manager,
		},
	}

	heartbeatPeriod, _ := ptypes.Duration(c.Spec.Dispatcher.HeartbeatPeriod)
	swarm.Spec.Dispatcher.HeartbeatPeriod = heartbeatPeriod

	swarm.Spec.CAConfig.NodeCertExpiry, _ = ptypes.Duration(c.Spec.CAConfig.NodeCertExpiry)

	for _, ca := range c.Spec.CAConfig.ExternalCAs {
		swarm.Spec.CAConfig.ExternalCAs = append(swarm.Spec.CAConfig.ExternalCAs, &types.ExternalCA{
			Protocol: types.ExternalCAProtocol(strings.ToLower(ca.Protocol.String())),
			URL:      ca.URL,
			Options:  ca.Options,
		})
	}

	// Meta
	swarm.Version.Index = c.Meta.Version.Index
	swarm.CreatedAt, _ = ptypes.Timestamp(c.Meta.CreatedAt)
	swarm.UpdatedAt, _ = ptypes.Timestamp(c.Meta.UpdatedAt)

	// Annotations
	swarm.Spec.Name = c.Spec.Annotations.Name
	swarm.Spec.Labels = c.Spec.Annotations.Labels

	return swarm
}

func printClusterSummary(cluster *api.Cluster) {
	w := tabwriter.NewWriter(os.Stdout, 8, 8, 8, ' ', 0)
	defer w.Flush()

	common.FprintfIfNotEmpty(w, "ID\t: %s\n", cluster.ID)
	common.FprintfIfNotEmpty(w, "Name\t: %s\n", cluster.Spec.Annotations.Name)
	if len(cluster.Spec.AcceptancePolicy.Policies) > 0 {
		fmt.Fprintf(w, "Acceptance Policies:\n")
		for _, policy := range cluster.Spec.AcceptancePolicy.Policies {
			fmt.Fprintf(w, "  Role\t: %v\n", policy.Role)
			fmt.Fprintf(w, "    Autoaccept\t: %v\n", policy.Autoaccept)
			if policy.Secret != nil {
				fmt.Fprintf(w, "    Secret\t: %v\n", string(policy.Secret.Data))
			}
		}
	}
	fmt.Fprintf(w, "Orchestration settings:\n")
	fmt.Fprintf(w, "  Task history entries: %d\n", cluster.Spec.Orchestration.TaskHistoryRetentionLimit)
	fmt.Fprintf(w, "Dispatcher settings:\n")
	fmt.Fprintf(w, "  Dispatcher heartbeat period: %d\n", cluster.Spec.Dispatcher.HeartbeatPeriod)
	if cluster.Spec.CAConfig.NodeCertExpiry != nil {
		fmt.Fprintf(w, "Certificate Authority settings:\n")
		clusterDuration, err := ptypes.Duration(cluster.Spec.CAConfig.NodeCertExpiry)
		if err != nil {
			fmt.Fprintf(w, "  Certificate Validity Duration: [ERROR PARSING DURATION]\n")
		} else {
			fmt.Fprintf(w, "  Certificate Validity Duration: %s\n", clusterDuration.String())
		}
	}
}

// updateCluster is called when there are cluster changes, and it ensures that the local RootCA is
// always aware of changes in clusterExpiry and the Root CA key material
func (s *Server) updateCluster(ctx context.Context, cluster *api.Cluster) {
	s.mu.Lock()
	s.joinTokens = cluster.RootCA.JoinTokens.Copy()
	s.mu.Unlock()
	var err error

	// If the cluster has a RootCA, let's try to update our SecurityConfig to reflect the latest values
	rCA := cluster.RootCA
	if len(rCA.CACert) != 0 && len(rCA.CAKey) != 0 {
		expiry := DefaultNodeCertExpiration
		if cluster.Spec.CAConfig.NodeCertExpiry != nil {
			// NodeCertExpiry exists, let's try to parse the duration out of it
			clusterExpiry, err := ptypes.Duration(cluster.Spec.CAConfig.NodeCertExpiry)
			if err != nil {
				log.G(ctx).WithFields(logrus.Fields{
					"cluster.id": cluster.ID,
					"method":     "(*Server).updateCluster",
				}).WithError(err).Warn("failed to parse certificate expiration, using default")
			} else {
				// We were able to successfully parse the expiration out of the cluster.
				expiry = clusterExpiry
			}
		} else {
			// NodeCertExpiry seems to be nil
			log.G(ctx).WithFields(logrus.Fields{
				"cluster.id": cluster.ID,
				"method":     "(*Server).updateCluster",
			}).WithError(err).Warn("failed to parse certificate expiration, using default")

		}
		// Attempt to update our local RootCA with the new parameters
		err = s.securityConfig.UpdateRootCA(rCA.CACert, rCA.CAKey, expiry)
		if err != nil {
			log.G(ctx).WithFields(logrus.Fields{
				"cluster.id": cluster.ID,
				"method":     "(*Server).updateCluster",
			}).WithError(err).Error("updating Root CA failed")
		} else {
			log.G(ctx).WithFields(logrus.Fields{
				"cluster.id": cluster.ID,
				"method":     "(*Server).updateCluster",
			}).Debugf("Root CA updated successfully")
		}
	}

	// Update our security config with the list of External CA URLs
	// from the new cluster state.

	// TODO(aaronl): In the future, this will be abstracted with an
	// ExternalCA interface that has different implementations for
	// different CA types. At the moment, only CFSSL is supported.
	var cfsslURLs []string
	for _, ca := range cluster.Spec.CAConfig.ExternalCAs {
		if ca.Protocol == api.ExternalCA_CAProtocolCFSSL {
			cfsslURLs = append(cfsslURLs, ca.URL)
		}
	}

	s.securityConfig.externalCA.UpdateURLs(cfsslURLs...)
}

func (s *session) heartbeat(ctx context.Context) error {
	log.G(ctx).Debugf("(*session).heartbeat")
	client := api.NewDispatcherClient(s.conn)
	heartbeat := time.NewTimer(1) // send out a heartbeat right away
	defer heartbeat.Stop()

	for {
		select {
		case <-heartbeat.C:
			heartbeatCtx, cancel := context.WithTimeout(ctx, dispatcherRPCTimeout)
			resp, err := client.Heartbeat(heartbeatCtx, &api.HeartbeatRequest{
				SessionID: s.sessionID,
			})
			cancel()
			if err != nil {
				if grpc.Code(err) == codes.NotFound {
					err = errNodeNotRegistered
				}

				return err
			}

			period, err := ptypes.Duration(&resp.Period)
			if err != nil {
				return err
			}

			heartbeat.Reset(period)
		case <-s.closed:
			return errSessionClosed
		case <-ctx.Done():
			return ctx.Err()
		}
	}
}

func (u *Updater) worker(ctx context.Context, queue <-chan *api.Task) {
	for t := range queue {
		updated := newTask(u.cluster, u.newService, t.Slot)
		updated.DesiredState = api.TaskStateReady
		if isGlobalService(u.newService) {
			updated.NodeID = t.NodeID
		}

		if err := u.updateTask(ctx, t, updated); err != nil {
			log.G(ctx).WithError(err).WithField("task.id", t.ID).Error("update failed")
		}

		if u.newService.Spec.Update != nil && (u.newService.Spec.Update.Delay.Seconds != 0 || u.newService.Spec.Update.Delay.Nanos != 0) {
			delay, err := ptypes.Duration(&u.newService.Spec.Update.Delay)
			if err != nil {
				log.G(ctx).WithError(err).Error("invalid update delay")
				continue
			}
			select {
			case <-time.After(delay):
			case <-u.stopChan:
				return
			}
		}
	}
}

func restartPolicyFromGRPC(p *swarmapi.RestartPolicy) *types.RestartPolicy {
	var rp *types.RestartPolicy
	if p != nil {
		rp = &types.RestartPolicy{}
		rp.Condition = types.RestartPolicyCondition(strings.ToLower(p.Condition.String()))
		if p.Delay != nil {
			delay, _ := ptypes.Duration(p.Delay)
			rp.Delay = &delay
		}
		if p.Window != nil {
			window, _ := ptypes.Duration(p.Window)
			rp.Window = &window
		}

		rp.MaxAttempts = &p.MaxAttempts
	}
	return rp
}

func (c *containerAdapter) shutdown(ctx context.Context) error {
	// Default stop grace period to 10s.
	stopgrace := 10 * time.Second
	spec := c.container.spec()
	if spec.StopGracePeriod != nil {
		stopgrace, _ = ptypes.Duration(spec.StopGracePeriod)
	}
	return c.client.ContainerStop(ctx, c.container.name(), &stopgrace)
}

// ServiceFromGRPC converts a grpc Service to a Service.
func ServiceFromGRPC(s swarmapi.Service) types.Service {
	spec := s.Spec
	containerConfig := spec.Task.Runtime.(*swarmapi.TaskSpec_Container).Container

	networks := make([]types.NetworkAttachmentConfig, 0, len(spec.Networks))
	for _, n := range spec.Networks {
		networks = append(networks, types.NetworkAttachmentConfig{Target: n.Target, Aliases: n.Aliases})
	}
	service := types.Service{
		ID: s.ID,

		Spec: types.ServiceSpec{
			TaskTemplate: types.TaskSpec{
				ContainerSpec: containerSpecFromGRPC(containerConfig),
				Resources:     resourcesFromGRPC(s.Spec.Task.Resources),
				RestartPolicy: restartPolicyFromGRPC(s.Spec.Task.Restart),
				Placement:     placementFromGRPC(s.Spec.Task.Placement),
				LogDriver:     driverFromGRPC(s.Spec.Task.LogDriver),
			},

			Networks:     networks,
			EndpointSpec: endpointSpecFromGRPC(s.Spec.Endpoint),
		},
		Endpoint: endpointFromGRPC(s.Endpoint),
	}

	// Meta
	service.Version.Index = s.Meta.Version.Index
	service.CreatedAt, _ = ptypes.Timestamp(s.Meta.CreatedAt)
	service.UpdatedAt, _ = ptypes.Timestamp(s.Meta.UpdatedAt)

	// Annotations
	service.Spec.Name = s.Spec.Annotations.Name
	service.Spec.Labels = s.Spec.Annotations.Labels

	// UpdateConfig
	if s.Spec.Update != nil {
		service.Spec.UpdateConfig = &types.UpdateConfig{
			Parallelism: s.Spec.Update.Parallelism,
		}

		service.Spec.UpdateConfig.Delay, _ = ptypes.Duration(&s.Spec.Update.Delay)
	}

	//Mode
	switch t := s.Spec.GetMode().(type) {
	case *swarmapi.ServiceSpec_Global:
		service.Spec.Mode.Global = &types.GlobalService{}
	case *swarmapi.ServiceSpec_Replicated:
		service.Spec.Mode.Replicated = &types.ReplicatedService{
			Replicas: &t.Replicated.Replicas,
		}
	}

	return service
}

func (u *Updater) worker(ctx context.Context, queue <-chan slot) {
	for slot := range queue {
		// Do we have a task with the new spec in desired state = RUNNING?
		// If so, all we have to do to complete the update is remove the
		// other tasks. Or if we have a task with the new spec that has
		// desired state < RUNNING, advance it to running and remove the
		// other tasks.
		var (
			runningTask *api.Task
			cleanTask   *api.Task
		)
		for _, t := range slot {
			if !u.isTaskDirty(t) {
				if t.DesiredState == api.TaskStateRunning {
					runningTask = t
					break
				}
				if t.DesiredState < api.TaskStateRunning {
					cleanTask = t
				}
			}
		}
		if runningTask != nil {
			if err := u.useExistingTask(ctx, slot, runningTask); err != nil {
				log.G(ctx).WithError(err).Error("update failed")
			}
		} else if cleanTask != nil {
			if err := u.useExistingTask(ctx, slot, cleanTask); err != nil {
				log.G(ctx).WithError(err).Error("update failed")
			}
		} else {
			updated := newTask(u.cluster, u.newService, slot[0].Slot)
			updated.DesiredState = api.TaskStateReady
			if isGlobalService(u.newService) {
				updated.NodeID = slot[0].NodeID
			}

			if err := u.updateTask(ctx, slot, updated); err != nil {
				log.G(ctx).WithError(err).WithField("task.id", updated.ID).Error("update failed")
			}
		}

		if u.newService.Spec.Update != nil && (u.newService.Spec.Update.Delay.Seconds != 0 || u.newService.Spec.Update.Delay.Nanos != 0) {
			delay, err := ptypes.Duration(&u.newService.Spec.Update.Delay)
			if err != nil {
				log.G(ctx).WithError(err).Error("invalid update delay")
				continue
			}
			select {
			case <-time.After(delay):
			case <-u.stopChan:
				return
			}
		}
	}
}

func containerSpecFromGRPC(c *swarmapi.ContainerSpec) types.ContainerSpec {
	containerSpec := types.ContainerSpec{
		Image:    c.Image,
		Labels:   c.Labels,
		Command:  c.Command,
		Args:     c.Args,
		Hostname: c.Hostname,
		Env:      c.Env,
		Dir:      c.Dir,
		User:     c.User,
		Groups:   c.Groups,
		TTY:      c.TTY,
	}

	// Mounts
	for _, m := range c.Mounts {
		mount := mounttypes.Mount{
			Target:   m.Target,
			Source:   m.Source,
			Type:     mounttypes.Type(strings.ToLower(swarmapi.Mount_MountType_name[int32(m.Type)])),
			ReadOnly: m.ReadOnly,
		}

		if m.BindOptions != nil {
			mount.BindOptions = &mounttypes.BindOptions{
				Propagation: mounttypes.Propagation(strings.ToLower(swarmapi.Mount_BindOptions_MountPropagation_name[int32(m.BindOptions.Propagation)])),
			}
		}

		if m.VolumeOptions != nil {
			mount.VolumeOptions = &mounttypes.VolumeOptions{
				NoCopy: m.VolumeOptions.NoCopy,
				Labels: m.VolumeOptions.Labels,
			}
			if m.VolumeOptions.DriverConfig != nil {
				mount.VolumeOptions.DriverConfig = &mounttypes.Driver{
					Name:    m.VolumeOptions.DriverConfig.Name,
					Options: m.VolumeOptions.DriverConfig.Options,
				}
			}
		}
		containerSpec.Mounts = append(containerSpec.Mounts, mount)
	}

	if c.StopGracePeriod != nil {
		grace, _ := ptypes.Duration(c.StopGracePeriod)
		containerSpec.StopGracePeriod = &grace
	}

	if c.Healthcheck != nil {
		containerSpec.Healthcheck = healthConfigFromGRPC(c.Healthcheck)
	}

	return containerSpec
}

func validateUpdate(uc *api.UpdateConfig) error {
	if uc == nil {
		return nil
	}

	delay, err := ptypes.Duration(&uc.Delay)
	if err != nil {
		return err
	}

	if delay < 0 {
		return grpc.Errorf(codes.InvalidArgument, "TaskSpec: update-delay cannot be negative")
	}

	return nil
}