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)),
})
go exec.InitializeStaticPodsSource(func() {
// Create file source only when we are called back. Otherwise, it is never marked unseen.
fileSourceUpdates := pc.Channel(kubelet.FileSource)
kconfig.NewSourceFile(staticPodsConfigPath, kc.Hostname, kc.FileCheckFrequency, fileSourceUpdates)
})
k := &kubeletExecutor{
Kubelet: klet,
address: ks.Address,
dockerClient: kc.DockerClient,
hks: hks,
kubeletFinished: kubeletFinished,
executorDone: exec.Done(),
clientConfig: clientConfig,
}
dconfig := bindings.DriverConfig{
Executor: exec,
HostnameOverride: ks.HostnameOverride,
BindingAddress: ks.Address,
}
if driver, err := bindings.NewMesosExecutorDriver(dconfig); err != nil {
log.Fatalf("failed to create executor driver: %v", err)
} else {
k.driver = driver
}
log.V(2).Infof("Initialize executor driver...")
k.BirthCry()
exec.Init(k.driver)
k.StartGarbageCollection()
return k, pc, nil
}
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
}
