mirror of
https://github.com/fluxcd/flagger.git
synced 2026-04-15 06:57:34 +00:00
109 lines
3.0 KiB
Go
109 lines
3.0 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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sharedclientset "github.com/knative/pkg/client/clientset/versioned"
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sharedscheme "github.com/knative/pkg/client/clientset/versioned/scheme"
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sharedinformers "github.com/knative/pkg/client/informers/externalversions"
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"github.com/knative/pkg/signals"
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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/apimachinery/pkg/apis/meta/v1"
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kubeinformers "k8s.io/client-go/informers"
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"k8s.io/client-go/kubernetes"
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"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/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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)
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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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}
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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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sharedscheme.AddToScheme(scheme.Scheme)
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kubeInformerFactory := kubeinformers.NewSharedInformerFactory(kubeClient, time.Second*30)
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sharedInformerFactory := sharedinformers.NewSharedInformerFactory(sharedClient, time.Second*30)
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coreServiceInformer := kubeInformerFactory.Core().V1().Services()
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virtualServiceInformer := sharedInformerFactory.Networking().V1alpha3().VirtualServices()
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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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opts := v1.ListOptions{}
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list, err := sharedClient.NetworkingV1alpha3().VirtualServices("demo").List(opts)
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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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logger.Infof("VirtualServices %v", len(list.Items))
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c := controller.NewController(
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kubeClient,
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sharedClient,
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logger,
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coreServiceInformer,
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virtualServiceInformer,
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)
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kubeInformerFactory.Start(stopCh)
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sharedInformerFactory.Start(stopCh)
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logger.Info("Waiting for informer caches to sync")
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for i, synced := range []cache.InformerSynced{
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coreServiceInformer.Informer().HasSynced,
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virtualServiceInformer.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 at index %v to sync", i)
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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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