func startHTTP(s *options.SchedulerServer) {
mux := http.NewServeMux()
healthz.InstallHandler(mux)
if s.EnableProfiling {
mux.HandleFunc("/debug/pprof/", pprof.Index)
mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
if s.EnableContentionProfiling {
goruntime.SetBlockProfileRate(1)
}
}
if c, err := configz.New("componentconfig"); err == nil {
c.Set(s.KubeSchedulerConfiguration)
} else {
glog.Errorf("unable to register configz: %s", err)
}
configz.InstallHandler(mux)
mux.Handle("/metrics", prometheus.Handler())
server := &http.Server{
Addr: net.JoinHostPort(s.Address, strconv.Itoa(int(s.Port))),
Handler: mux,
}
glog.Fatal(server.ListenAndServe())
}
// InstallDefaultHandlers registers the default set of supported HTTP request
// patterns with the restful Container.
func (s *Server) InstallDefaultHandlers() {
healthz.InstallHandler(s.restfulCont,
healthz.PingHealthz,
healthz.NamedCheck("syncloop", s.syncLoopHealthCheck),
)
var ws *restful.WebService
ws = new(restful.WebService)
ws.
Path("/pods").
Produces(restful.MIME_JSON)
ws.Route(ws.GET("").
To(s.getPods).
Operation("getPods"))
s.restfulCont.Add(ws)
s.restfulCont.Add(stats.CreateHandlers(statsPath, s.host, s.resourceAnalyzer))
s.restfulCont.Handle(metricsPath, prometheus.Handler())
ws = new(restful.WebService)
ws.
Path(specPath).
Produces(restful.MIME_JSON)
ws.Route(ws.GET("").
To(s.getSpec).
Operation("getSpec").
Writes(cadvisorapi.MachineInfo{}))
s.restfulCont.Add(ws)
}
// installHealthz creates the healthz endpoint for this server
func (s *GenericAPIServer) installHealthz() {
s.healthzLock.Lock()
defer s.healthzLock.Unlock()
s.healthzCreated = true
healthz.InstallHandler(&s.HandlerContainer.NonSwaggerRoutes, s.healthzChecks...)
}
// Run runs the CMServer. This should never exit.
func Run(s *options.CMServer) error {
if err := s.Validate(KnownControllers(), ControllersDisabledByDefault.List()); err != nil {
return err
}
if c, err := configz.New("componentconfig"); err == nil {
c.Set(s.KubeControllerManagerConfiguration)
} else {
glog.Errorf("unable to register configz: %s", err)
}
kubeconfig, err := clientcmd.BuildConfigFromFlags(s.Master, s.Kubeconfig)
if err != nil {
return err
}
kubeconfig.ContentConfig.ContentType = s.ContentType
// Override kubeconfig qps/burst settings from flags
kubeconfig.QPS = s.KubeAPIQPS
kubeconfig.Burst = int(s.KubeAPIBurst)
kubeClient, err := clientset.NewForConfig(restclient.AddUserAgent(kubeconfig, "controller-manager"))
if err != nil {
glog.Fatalf("Invalid API configuration: %v", err)
}
leaderElectionClient := clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "leader-election"))
go func() {
mux := http.NewServeMux()
healthz.InstallHandler(mux)
if s.EnableProfiling {
mux.HandleFunc("/debug/pprof/", pprof.Index)
mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
}
configz.InstallHandler(mux)
mux.Handle("/metrics", prometheus.Handler())
server := &http.Server{
Addr: net.JoinHostPort(s.Address, strconv.Itoa(int(s.Port))),
Handler: mux,
}
glog.Fatal(server.ListenAndServe())
}()
eventBroadcaster := record.NewBroadcaster()
eventBroadcaster.StartLogging(glog.Infof)
eventBroadcaster.StartRecordingToSink(&v1core.EventSinkImpl{Interface: kubeClient.Core().Events("")})
recorder := eventBroadcaster.NewRecorder(v1.EventSource{Component: "controller-manager"})
run := func(stop <-chan struct{}) {
rootClientBuilder := controller.SimpleControllerClientBuilder{
ClientConfig: kubeconfig,
}
var clientBuilder controller.ControllerClientBuilder
if len(s.ServiceAccountKeyFile) > 0 && s.UseServiceAccountCredentials {
clientBuilder = controller.SAControllerClientBuilder{
ClientConfig: restclient.AnonymousClientConfig(kubeconfig),
CoreClient: kubeClient.Core(),
Namespace: "kube-system",
}
} else {
clientBuilder = rootClientBuilder
}
err := StartControllers(newControllerInitializers(), s, rootClientBuilder, clientBuilder, stop)
glog.Fatalf("error running controllers: %v", err)
panic("unreachable")
}
if !s.LeaderElection.LeaderElect {
run(nil)
panic("unreachable")
}
id, err := os.Hostname()
if err != nil {
return err
}
// TODO: enable other lock types
rl := resourcelock.EndpointsLock{
EndpointsMeta: metav1.ObjectMeta{
Namespace: "kube-system",
Name: "kube-controller-manager",
},
Client: leaderElectionClient,
LockConfig: resourcelock.ResourceLockConfig{
Identity: id,
EventRecorder: recorder,
},
}
leaderelection.RunOrDie(leaderelection.LeaderElectionConfig{
Lock: &rl,
LeaseDuration: s.LeaderElection.LeaseDuration.Duration,
RenewDeadline: s.LeaderElection.RenewDeadline.Duration,
RetryPeriod: s.LeaderElection.RetryPeriod.Duration,
Callbacks: leaderelection.LeaderCallbacks{
OnStartedLeading: run,
OnStoppedLeading: func() {
glog.Fatalf("leaderelection lost")
},
},
})
panic("unreachable")
}
// Run runs the CMServer. This should never exit.
func Run(s *options.CMServer) error {
glog.Infof("%+v", version.Get())
if c, err := configz.New("componentconfig"); err == nil {
c.Set(s.ControllerManagerConfiguration)
} else {
glog.Errorf("unable to register configz: %s", err)
}
// If s.Kubeconfig flag is empty, try with the deprecated name in 1.5.
// TODO(madhusudancs): Remove this in 1.6.
var restClientCfg *restclient.Config
var err error
if len(s.Kubeconfig) <= 0 {
restClientCfg, err = restClientConfigFromSecret(s.Master)
if err != nil {
return err
}
} else {
// Create the config to talk to federation-apiserver.
restClientCfg, err = clientcmd.BuildConfigFromFlags(s.Master, s.Kubeconfig)
if err != nil || restClientCfg == nil {
// Retry with the deprecated name in 1.5.
// TODO(madhusudancs): Remove this in 1.6.
glog.V(2).Infof("Couldn't build the rest client config from flags: %v", err)
glog.V(2).Infof("Trying with deprecated secret: %s", DeprecatedKubeconfigSecretName)
restClientCfg, err = restClientConfigFromSecret(s.Master)
if err != nil {
return err
}
}
}
// Override restClientCfg qps/burst settings from flags
restClientCfg.QPS = s.APIServerQPS
restClientCfg.Burst = s.APIServerBurst
go func() {
mux := http.NewServeMux()
healthz.InstallHandler(mux)
if s.EnableProfiling {
mux.HandleFunc("/debug/pprof/", pprof.Index)
mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
}
mux.Handle("/metrics", prometheus.Handler())
server := &http.Server{
Addr: net.JoinHostPort(s.Address, strconv.Itoa(s.Port)),
Handler: mux,
}
glog.Fatal(server.ListenAndServe())
}()
run := func() {
err := StartControllers(s, restClientCfg)
glog.Fatalf("error running controllers: %v", err)
panic("unreachable")
}
run()
panic("unreachable")
}
