Golang executor.New函數代碼示例

func (s *KubeletExecutorServer) runExecutor(
	nodeInfos chan<- executor.NodeInfo,
	kubeletFinished <-chan struct{},
	staticPodsConfigPath string,
	apiclient *clientset.Clientset,
	registry executor.Registry,
) (<-chan struct{}, error) {
	staticPodFilters := podutil.Filters{
		// annotate the pod with BindingHostKey so that the scheduler will ignore the pod
		// once it appears in the pod registry. the stock kubelet sets the pod host in order
		// to accomplish the same; we do this because the k8sm scheduler works differently.
		podutil.Annotator(map[string]string{
			meta.BindingHostKey: s.HostnameOverride,
		}),
	}
	if s.containerID != "" {
		// tag all pod containers with the containerID so that they can be properly GC'd by Mesos
		staticPodFilters = append(staticPodFilters, podutil.Environment([]api.EnvVar{
			{Name: envContainerID, Value: s.containerID},
		}))
	}
	exec := executor.New(executor.Config{
		Registry:        registry,
		APIClient:       apiclient,
		Docker:          dockertools.ConnectToDockerOrDie(s.DockerEndpoint),
		SuicideTimeout:  s.SuicideTimeout,
		KubeletFinished: kubeletFinished,
		ExitFunc:        os.Exit,
		NodeInfos:       nodeInfos,
		Options: []executor.Option{
			executor.StaticPods(staticPodsConfigPath, staticPodFilters),
		},
	})

	// initialize driver and initialize the executor with it
	dconfig := bindings.DriverConfig{
		Executor:         exec,
		HostnameOverride: s.HostnameOverride,
		BindingAddress:   net.ParseIP(s.Address),
	}
	driver, err := bindings.NewMesosExecutorDriver(dconfig)
	if err != nil {
		return nil, fmt.Errorf("failed to create executor driver: %v", err)
	}
	log.V(2).Infof("Initialize executor driver...")
	exec.Init(driver)

	// start the driver
	go func() {
		if _, err := driver.Run(); err != nil {
			log.Fatalf("executor driver failed: %v", err)
		}
		log.Info("executor Run completed")
	}()

	return exec.Done(), nil
}

func (s *KubeletExecutorServer) runExecutor(
	nodeInfos chan<- executor.NodeInfo,
	kubeletFinished <-chan struct{},
	staticPodsConfigPath string,
	apiclient *clientset.Clientset,
	registry executor.Registry,
) (<-chan struct{}, error) {
	exec := executor.New(executor.Config{
		Registry:             registry,
		APIClient:            apiclient,
		Docker:               dockertools.ConnectToDockerOrDie(s.DockerEndpoint),
		SuicideTimeout:       s.SuicideTimeout,
		KubeletFinished:      kubeletFinished,
		ExitFunc:             os.Exit,
		StaticPodsConfigPath: staticPodsConfigPath,
		NodeInfos:            nodeInfos,
	})

	// initialize driver and initialize the executor with it
	dconfig := bindings.DriverConfig{
		Executor:         exec,
		HostnameOverride: s.HostnameOverride,
		BindingAddress:   net.ParseIP(s.Address),
	}
	driver, err := bindings.NewMesosExecutorDriver(dconfig)
	if err != nil {
		return nil, fmt.Errorf("failed to create executor driver: %v", err)
	}
	log.V(2).Infof("Initialize executor driver...")
	exec.Init(driver)

	// start the driver
	go func() {
		if _, err := driver.Run(); err != nil {
			log.Fatalf("executor driver failed: %v", err)
		}
		log.Info("executor Run completed")
	}()

	return exec.Done(), nil
}

func (ks *KubeletExecutorServer) createAndInitKubelet(
	kc *app.KubeletConfig,
	hks hyperkube.Interface,
	clientConfig *client.Config,
) (app.KubeletBootstrap, *kconfig.PodConfig, error) {

	// TODO(k8s): block until all sources have delivered at least one update to the channel, or break the sync loop
	// up into "per source" synchronizations
	// TODO(k8s): KubeletConfig.KubeClient should be a client interface, but client interface misses certain methods
	// used by kubelet. Since NewMainKubelet expects a client interface, we need to make sure we are not passing
	// a nil pointer to it when what we really want is a nil interface.
	var kubeClient client.Interface
	if kc.KubeClient == nil {
		kubeClient = nil
	} else {
		kubeClient = kc.KubeClient
	}

	gcPolicy := kubelet.ContainerGCPolicy{
		MinAge:             kc.MinimumGCAge,
		MaxPerPodContainer: kc.MaxPerPodContainerCount,
		MaxContainers:      kc.MaxContainerCount,
	}

	pc := kconfig.NewPodConfig(kconfig.PodConfigNotificationIncremental, kc.Recorder)
	updates := pc.Channel(MESOS_CFG_SOURCE)

	klet, err := kubelet.NewMainKubelet(
		kc.Hostname,
		kc.NodeName,
		kc.DockerClient,
		kubeClient,
		kc.RootDirectory,
		kc.PodInfraContainerImage,
		kc.SyncFrequency,
		float32(kc.RegistryPullQPS),
		kc.RegistryBurst,
		kc.EventRecordQPS,
		kc.EventBurst,
		gcPolicy,
		pc.SeenAllSources,
		kc.RegisterNode,
		kc.StandaloneMode,
		kc.ClusterDomain,
		net.IP(kc.ClusterDNS),
		kc.MasterServiceNamespace,
		kc.VolumePlugins,
		kc.NetworkPlugins,
		kc.NetworkPluginName,
		kc.StreamingConnectionIdleTimeout,
		kc.Recorder,
		kc.CAdvisorInterface,
		kc.ImageGCPolicy,
		kc.DiskSpacePolicy,
		kc.Cloud,
		kc.NodeStatusUpdateFrequency,
		kc.ResourceContainer,
		kc.OSInterface,
		kc.CgroupRoot,
		kc.ContainerRuntime,
		kc.RktPath,
		kc.RktStage1Image,
		kc.Mounter,
		kc.Writer,
		kc.DockerDaemonContainer,
		kc.SystemContainer,
		kc.ConfigureCBR0,
		kc.PodCIDR,
		kc.MaxPods,
		kc.DockerExecHandler,
		kc.ResolverConfig,
		kc.CPUCFSQuota,
		&api.NodeDaemonEndpoints{
			KubeletEndpoint: api.DaemonEndpoint{Port: int(kc.Port)},
		},
		kc.OOMAdjuster,
	)
	if err != nil {
		return nil, nil, err
	}

	//TODO(jdef) either configure Watch here with something useful, or else
	// get rid of it from executor.Config
	kubeletFinished := make(chan struct{})
	staticPodsConfigPath := filepath.Join(kc.RootDirectory, "static-pods")
	exec := executor.New(executor.Config{
		Kubelet:           klet,
		Updates:           updates,
		SourceName:        MESOS_CFG_SOURCE,
		APIClient:         kc.KubeClient,
		Docker:            kc.DockerClient,
		SuicideTimeout:    ks.SuicideTimeout,
		LaunchGracePeriod: ks.LaunchGracePeriod,
		KubeletFinished:   kubeletFinished,
		ExitFunc:          os.Exit,
		PodStatusFunc: func(_ executor.KubeletInterface, pod *api.Pod) (*api.PodStatus, error) {
			return klet.GetRuntime().GetPodStatus(pod)
		},
		StaticPodsConfigPath: staticPodsConfigPath,
		PodLW:                cache.NewListWatchFromClient(kc.KubeClient, "pods", api.NamespaceAll, fields.OneTermEqualSelector(client.PodHost, kc.NodeName)),
//.........這裏部分代碼省略.........

func (s *KubeletExecutorServer) runExecutor(execUpdates chan<- kubetypes.PodUpdate, nodeInfos chan<- executor.NodeInfo, kubeletFinished <-chan struct{},
	staticPodsConfigPath string, apiclient *client.Client) error {
	exec := executor.New(executor.Config{
		Updates:         execUpdates,
		APIClient:       apiclient,
		Docker:          dockertools.ConnectToDockerOrDie(s.DockerEndpoint),
		SuicideTimeout:  s.SuicideTimeout,
		KubeletFinished: kubeletFinished,
		ExitFunc:        os.Exit,
		PodStatusFunc: func(pod *api.Pod) (*api.PodStatus, error) {
			s.kletLock.Lock()
			defer s.kletLock.Unlock()

			if s.klet == nil {
				return nil, fmt.Errorf("PodStatucFunc called before kubelet is initialized")
			}

			status, err := s.klet.GetRuntime().GetPodStatus(pod)
			if err != nil {
				return nil, err
			}

			status.Phase = kubelet.GetPhase(&pod.Spec, status.ContainerStatuses)
			hostIP, err := s.klet.GetHostIP()
			if err != nil {
				log.Errorf("Cannot get host IP: %v", err)
			} else {
				status.HostIP = hostIP.String()
			}
			return status, nil
		},
		StaticPodsConfigPath: staticPodsConfigPath,
		PodLW: cache.NewListWatchFromClient(apiclient, "pods", api.NamespaceAll,
			fields.OneTermEqualSelector(client.PodHost, s.HostnameOverride),
		),
		NodeInfos: nodeInfos,
	})

	// initialize driver and initialize the executor with it
	dconfig := bindings.DriverConfig{
		Executor:         exec,
		HostnameOverride: s.HostnameOverride,
		BindingAddress:   s.Address,
	}
	driver, err := bindings.NewMesosExecutorDriver(dconfig)
	if err != nil {
		return fmt.Errorf("failed to create executor driver: %v", err)
	}
	log.V(2).Infof("Initialize executor driver...")
	exec.Init(driver)

	// start the driver
	go func() {
		if _, err := driver.Run(); err != nil {
			log.Fatalf("executor driver failed: %v", err)
		}
		log.Info("executor Run completed")
	}()

	return nil
}