Files
open-cluster-management/pkg/registration/webhook/start.go
2024-10-28 13:43:44 +00:00

82 lines
2.4 KiB
Go

package webhook
import (
"context"
"crypto/tls"
"k8s.io/apimachinery/pkg/runtime"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
clientgoscheme "k8s.io/client-go/kubernetes/scheme"
_ "k8s.io/client-go/plugin/pkg/client/auth" // Import all auth plugins (e.g. Azure, GCP, OIDC, etc.) to ensure exec-entrypoint and run can make use of them.
"k8s.io/klog/v2"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/healthz"
"sigs.k8s.io/controller-runtime/pkg/webhook"
clusterv1 "open-cluster-management.io/api/cluster/v1"
internalv1 "open-cluster-management.io/ocm/pkg/registration/webhook/v1"
internalv1beta2 "open-cluster-management.io/ocm/pkg/registration/webhook/v1beta2"
)
var (
scheme = runtime.NewScheme()
)
func init() {
utilruntime.Must(clientgoscheme.AddToScheme(scheme))
utilruntime.Must(clusterv1.Install(scheme))
utilruntime.Must(internalv1beta2.Install(scheme))
}
func (c *Options) RunWebhookServer() error {
logger := klog.LoggerWithName(klog.FromContext(context.Background()), "Webhook Server")
// This line prevents controller-runtime from complaining about log.SetLogger never being called
ctrl.SetLogger(logger)
mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
Scheme: scheme,
HealthProbeBindAddress: ":8000",
WebhookServer: webhook.NewServer(webhook.Options{
Port: c.Port,
CertDir: c.CertDir,
TLSOpts: []func(config *tls.Config){
func(config *tls.Config) {
config.MinVersion = tls.VersionTLS12
},
},
}),
})
if err != nil {
logger.Error(err, "unable to start manager")
return err
}
// add healthz/readyz check handler
if err := mgr.AddHealthzCheck("healthz-ping", healthz.Ping); err != nil {
logger.Error(err, "unable to add healthz check handler")
return err
}
if err := mgr.AddReadyzCheck("readyz-ping", healthz.Ping); err != nil {
logger.Error(err, "unable to add readyz check handler")
return err
}
if err = (&internalv1.ManagedClusterWebhook{}).Init(mgr); err != nil {
logger.Error(err, "unable to create ManagedCluster webhook")
return err
}
if err = (&internalv1beta2.ManagedClusterSetBindingWebhook{}).Init(mgr); err != nil {
logger.Error(err, "unable to create ManagedClusterSetBinding webhook", "version", "v1beta2")
return err
}
logger.Info("starting manager")
if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil {
logger.Error(err, "problem running manager")
return err
}
return nil
}