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
}
// initializeStaticPodsSource unzips the data slice into the static-pods directory
func (k *Executor) initializeStaticPodsSource(hostname string, data []byte) error {
log.V(2).Infof("extracting static pods config to %s", k.staticPodsConfigPath)
// 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.
annotator := podutil.Annotator(map[string]string{
meta.BindingHostKey: hostname,
})
return podutil.WriteToDir(annotator.Do(podutil.Gunzip(data)), k.staticPodsConfigPath)
}