mirror of https://github.com/openkruise/kruise.git
157 lines
4.7 KiB
Go
157 lines
4.7 KiB
Go
/*
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Copyright 2020 The Kruise Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"flag"
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"net/http"
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_ "net/http/pprof"
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"os"
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extclient "github.com/openkruise/kruise/pkg/client"
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"github.com/openkruise/kruise/pkg/util/fieldindex"
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"github.com/openkruise/kruise/pkg/webhook"
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"k8s.io/apimachinery/pkg/runtime"
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clientgoscheme "k8s.io/client-go/kubernetes/scheme"
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_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
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"k8s.io/client-go/rest"
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"k8s.io/klog"
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"k8s.io/klog/klogr"
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ctrl "sigs.k8s.io/controller-runtime"
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appsv1alpha1 "github.com/openkruise/kruise/apis/apps/v1alpha1"
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"github.com/openkruise/kruise/pkg/controller"
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// +kubebuilder:scaffold:imports
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)
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var (
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scheme = runtime.NewScheme()
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setupLog = ctrl.Log.WithName("setup")
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restConfigQPS = flag.Int("rest-config-qps", 30, "QPS of rest config.")
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restConfigBurst = flag.Int("rest-config-burst", 50, "Burst of rest config.")
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)
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func init() {
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_ = clientgoscheme.AddToScheme(scheme)
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_ = appsv1alpha1.AddToScheme(clientgoscheme.Scheme)
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_ = appsv1alpha1.AddToScheme(scheme)
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// +kubebuilder:scaffold:scheme
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}
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func main() {
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var metricsAddr, pprofAddr string
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var healthProbeAddr string
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var enableLeaderElection, enablePprof bool
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var leaderElectionNamespace string
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var namespace string
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flag.StringVar(&metricsAddr, "metrics-addr", ":8080", "The address the metric endpoint binds to.")
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flag.StringVar(&healthProbeAddr, "health-probe-addr", ":8000", "The address the healthz/readyz endpoint binds to.")
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flag.BoolVar(&enableLeaderElection, "enable-leader-election", true, "Whether you need to enable leader election.")
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flag.StringVar(&leaderElectionNamespace, "leader-election-namespace", "kruise-system",
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"This determines the namespace in which the leader election configmap will be created, it will use in-cluster namespace if empty.")
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flag.StringVar(&namespace, "namespace", "",
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"Namespace if specified restricts the manager's cache to watch objects in the desired namespace. Defaults to all namespaces.")
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flag.BoolVar(&enablePprof, "enable-pprof", false, "Enable pprof for controller manager.")
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flag.StringVar(&pprofAddr, "pprof-addr", ":8090", "The address the pprof binds to.")
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klog.InitFlags(nil)
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flag.Parse()
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if enablePprof {
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go func() {
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if err := http.ListenAndServe(pprofAddr, nil); err != nil {
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setupLog.Error(err, "unable to start pprof")
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}
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}()
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}
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//ctrl.SetLogger(zap.New(zap.UseDevMode(true)))
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ctrl.SetLogger(klogr.New())
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cfg := ctrl.GetConfigOrDie()
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setRestConfig(cfg)
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mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
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Scheme: scheme,
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MetricsBindAddress: metricsAddr,
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HealthProbeBindAddress: healthProbeAddr,
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LeaderElection: enableLeaderElection,
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LeaderElectionID: "kruise-manager",
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LeaderElectionNamespace: leaderElectionNamespace,
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Namespace: namespace,
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})
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if err != nil {
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setupLog.Error(err, "unable to start manager")
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os.Exit(1)
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}
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setupLog.Info("register field index")
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if err := fieldindex.RegisterFieldIndexes(mgr.GetCache()); err != nil {
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setupLog.Error(err, "failed to register field index")
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os.Exit(1)
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}
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setupLog.Info("new clientset registry")
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err = extclient.NewRegistry(mgr)
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if err != nil {
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setupLog.Error(err, "unable to init kruise clientset and informer")
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os.Exit(1)
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}
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setupLog.Info("setup controllers")
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if err = controller.SetupWithManager(mgr); err != nil {
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setupLog.Error(err, "unable to setup controllers")
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os.Exit(1)
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}
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setupLog.Info("setup webhook")
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if err = webhook.SetupWithManager(mgr); err != nil {
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setupLog.Error(err, "unable to setup webhook")
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os.Exit(1)
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}
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// +kubebuilder:scaffold:builder
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setupLog.Info("initialize webhook")
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if err := webhook.Initialize(mgr); err != nil {
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setupLog.Error(err, "unable to initialize webhook")
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os.Exit(1)
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}
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if err := mgr.AddReadyzCheck("webhook-ready", webhook.Checker); err != nil {
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setupLog.Error(err, "unable to add readyz check")
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os.Exit(1)
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}
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setupLog.Info("starting manager")
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if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil {
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setupLog.Error(err, "problem running manager")
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os.Exit(1)
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}
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}
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func setRestConfig(c *rest.Config) {
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if *restConfigQPS > 0 {
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c.QPS = float32(*restConfigQPS)
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}
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if *restConfigBurst > 0 {
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c.Burst = *restConfigBurst
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}
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}
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