Beispiel #1
0
// Run runs the specified KubeletExecutorServer.
func (s *KubeletExecutorServer) Run(hks hyperkube.Interface, _ []string) error {
	// create shared channels
	kubeletFinished := make(chan struct{})
	nodeInfos := make(chan executor.NodeInfo, 1)

	// create static pods directory
	staticPodsConfigPath := filepath.Join(s.RootDirectory, "static-pods")
	err := os.Mkdir(staticPodsConfigPath, 0750)
	if err != nil {
		return err
	}

	// we're expecting that either Mesos or the minion process will set this for us
	s.containerID = os.Getenv(envContainerID)
	if s.containerID == "" {
		log.Warningf("missing expected environment variable %q", envContainerID)
	}

	// create apiserver client
	var apiclient *clientset.Clientset
	clientConfig, err := kubeletapp.CreateAPIServerClientConfig(s.KubeletServer)
	if err == nil {
		apiclient, err = clientset.NewForConfig(clientConfig)
	}
	if err != nil {
		// required for k8sm since we need to send api.Binding information back to the apiserver
		return fmt.Errorf("cannot create API client: %v", err)
	}

	var (
		pw = cache.NewListWatchFromClient(apiclient.CoreClient, "pods", api.NamespaceAll,
			fields.OneTermEqualSelector(client.PodHost, s.HostnameOverride),
		)
		reg = executor.NewRegistry(apiclient)
	)

	// start executor
	var executorDone <-chan struct{}
	executorDone, err = s.runExecutor(nodeInfos, kubeletFinished, staticPodsConfigPath, apiclient, reg)
	if err != nil {
		return err
	}

	// start kubelet, blocking
	return s.runKubelet(nodeInfos, kubeletFinished, staticPodsConfigPath, apiclient, pw, reg, executorDone)
}
Beispiel #2
0
// Run runs the specified KubeletExecutorServer.
func (s *KubeletExecutorServer) Run(hks hyperkube.Interface, _ []string) error {
	// create shared channels
	kubeletFinished := make(chan struct{})
	nodeInfos := make(chan executor.NodeInfo, 1)

	// create static pods directory
	staticPodsConfigPath := filepath.Join(s.RootDirectory, "static-pods")
	err := os.Mkdir(staticPodsConfigPath, 0750)
	if err != nil {
		return err
	}

	// create apiserver client
	var apiclient *client.Client
	clientConfig, err := kubeletapp.CreateAPIServerClientConfig(s.KubeletServer)
	if err == nil {
		apiclient, err = client.New(clientConfig)
	}
	if err != nil {
		// required for k8sm since we need to send api.Binding information back to the apiserver
		return fmt.Errorf("cannot create API client: %v", err)
	}

	var (
		pw = cache.NewListWatchFromClient(apiclient, "pods", api.NamespaceAll,
			fields.OneTermEqualSelector(client.PodHost, s.HostnameOverride),
		)
		reg = executor.NewRegistry(apiclient)
	)

	// start executor
	var executorDone <-chan struct{}
	executorDone, err = s.runExecutor(nodeInfos, kubeletFinished, staticPodsConfigPath, apiclient, reg)
	if err != nil {
		return err
	}

	// start kubelet, blocking
	return s.runKubelet(nodeInfos, kubeletFinished, staticPodsConfigPath, apiclient, pw, reg, executorDone)
}