mirror of
https://github.com/fluxcd/flagger.git
synced 2026-03-06 11:41:16 +00:00
104 lines
2.8 KiB
Go
104 lines
2.8 KiB
Go
package main
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import (
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"flag"
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"log"
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"time"
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"github.com/golang/glog"
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sharedclientset "github.com/knative/pkg/client/clientset/versioned"
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"github.com/knative/pkg/signals"
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clientset "github.com/stefanprodan/steerer/pkg/client/clientset/versioned"
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informers "github.com/stefanprodan/steerer/pkg/client/informers/externalversions"
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"github.com/stefanprodan/steerer/pkg/controller"
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"github.com/stefanprodan/steerer/pkg/logging"
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"k8s.io/client-go/kubernetes"
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_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
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"k8s.io/client-go/tools/cache"
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"k8s.io/client-go/tools/clientcmd"
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)
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var (
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masterURL string
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kubeconfig string
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metricServer string
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rolloutWindow time.Duration
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)
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func init() {
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flag.StringVar(&kubeconfig, "kubeconfig", "", "Path to a kubeconfig. Only required if out-of-cluster.")
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flag.StringVar(&masterURL, "master", "", "The address of the Kubernetes API server. Overrides any value in kubeconfig. Only required if out-of-cluster.")
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flag.StringVar(&metricServer, "prometheus", "https://prometheus.istio.weavedx.com", "Prometheus URL")
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flag.DurationVar(&rolloutWindow, "window", 10*time.Second, "wait interval between deployment rollouts")
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}
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func main() {
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flag.Parse()
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logger, err := logging.NewLogger("debug")
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if err != nil {
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log.Fatalf("Error creating logger: %v", err)
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}
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defer logger.Sync()
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stopCh := signals.SetupSignalHandler()
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cfg, err := clientcmd.BuildConfigFromFlags(masterURL, kubeconfig)
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if err != nil {
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logger.Fatalf("Error building kubeconfig: %v", err)
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}
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kubeClient, err := kubernetes.NewForConfig(cfg)
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if err != nil {
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logger.Fatalf("Error building kubernetes clientset: %v", err)
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}
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sharedClient, err := sharedclientset.NewForConfig(cfg)
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if err != nil {
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logger.Fatalf("Error building shared clientset: %v", err)
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}
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rolloutClient, err := clientset.NewForConfig(cfg)
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if err != nil {
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glog.Fatalf("Error building example clientset: %s", err.Error())
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}
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rolloutInformerFactory := informers.NewSharedInformerFactory(rolloutClient, time.Second*30)
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rolloutInformer := rolloutInformerFactory.Apps().V1beta1().Rollouts()
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ver, err := kubeClient.Discovery().ServerVersion()
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if err != nil {
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logger.Fatalf("Error calling Kubernetes API: %v", err)
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}
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logger.Infof("Kubernetes version %v", ver)
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c := controller.NewController(
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kubeClient,
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sharedClient,
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rolloutClient,
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rolloutInformer,
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rolloutWindow,
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metricServer,
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logger,
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)
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rolloutInformerFactory.Start(stopCh)
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logger.Info("Waiting for informer caches to sync")
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for _, synced := range []cache.InformerSynced{
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rolloutInformer.Informer().HasSynced,
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} {
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if ok := cache.WaitForCacheSync(stopCh, synced); !ok {
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logger.Fatalf("failed to wait for cache")
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}
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}
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go func(ctrl *controller.Controller) {
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if runErr := ctrl.Run(2, stopCh); runErr != nil {
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logger.Fatalf("Error running controller: %v", runErr)
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}
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}(c)
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<-stopCh
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}
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