// StartControllers starts the cloud specific controller loops. func StartControllers(s *options.CloudControllerManagerServer, kubeconfig *restclient.Config, rootClientBuilder, clientBuilder controller.ControllerClientBuilder, stop <-chan struct{}, recorder record.EventRecorder, cloud cloudprovider.Interface) error { // Function to build the kube client object client := func(serviceAccountName string) clientset.Interface { return rootClientBuilder.ClientOrDie(serviceAccountName) } sharedInformers := informers.NewSharedInformerFactory(client("shared-informers"), nil, resyncPeriod(s)()) _, clusterCIDR, err := net.ParseCIDR(s.ClusterCIDR) if err != nil { glog.Warningf("Unsuccessful parsing of cluster CIDR %v: %v", s.ClusterCIDR, err) } // Start the CloudNodeController nodeController, err := nodecontroller.NewCloudNodeController( sharedInformers.Nodes(), client("cloud-node-controller"), cloud, s.NodeMonitorPeriod.Duration) if err != nil { glog.Fatalf("Failed to initialize nodecontroller: %v", err) } nodeController.Run() time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter)) // Start the service controller serviceController, err := servicecontroller.New(cloud, client("service-controller"), s.ClusterName) if err != nil { glog.Errorf("Failed to start service controller: %v", err) } else { serviceController.Run(int(s.ConcurrentServiceSyncs)) } time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter)) // If CIDRs should be allocated for pods and set on the CloudProvider, then start the route controller if s.AllocateNodeCIDRs && s.ConfigureCloudRoutes { if routes, ok := cloud.Routes(); !ok { glog.Warning("configure-cloud-routes is set, but cloud provider does not support routes. Will not configure cloud provider routes.") } else { routeController := routecontroller.New(routes, client("route-controller"), s.ClusterName, clusterCIDR) routeController.Run(s.RouteReconciliationPeriod.Duration) time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter)) } } else { glog.Infof("Will not configure cloud provider routes for allocate-node-cidrs: %v, configure-cloud-routes: %v.", s.AllocateNodeCIDRs, s.ConfigureCloudRoutes) } // If apiserver is not running we should wait for some time and fail only then. This is particularly // important when we start apiserver and controller manager at the same time. var versionStrings []string err = wait.PollImmediate(time.Second, 10*time.Second, func() (bool, error) { if versionStrings, err = restclient.ServerAPIVersions(kubeconfig); err == nil { return true, nil } glog.Errorf("Failed to get api versions from server: %v", err) return false, nil }) if err != nil { glog.Fatalf("Failed to get api versions from server: %v", err) } sharedInformers.Start(stop) select {} }