clean up old webhooks before registering new ones

pkg/webhookconfig/monitor.go

@@ -86,10 +86,6 @@ func (t *Monitor) Run(register *Register, eventGen event.Interface, client *dcli
 					logger.Error(err, "failed to annotate deployment webhook status to failure")
 				}
 
-				cleanUp := make(chan struct{})
-				register.Remove(cleanUp)
-				<-cleanUp
-
 				if err := register.Register(); err != nil {
 					logger.Error(err, "Failed to register webhooks")
 				}

pkg/webhookconfig/registration.go

@@ -3,11 +3,12 @@ package webhookconfig
 import (
 	"errors"
 	"fmt"
-	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"strings"
 	"sync"
 	"time"
 
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+
 	"github.com/go-logr/logr"
 	"github.com/kyverno/kyverno/pkg/config"
 	client "github.com/kyverno/kyverno/pkg/dclient"
@@ -51,13 +52,15 @@ func NewRegister(
 	}
 }
 
-// Register creates admission webhooks configs on cluster
+// Register clean up the old webhooks and re-creates admission webhooks configs on cluster
 func (wrc *Register) Register() error {
 	logger := wrc.log
 	if wrc.serverIP != "" {
 		logger.Info("Registering webhook", "url", fmt.Sprintf("https://%s", wrc.serverIP))
 	}
 
+	wrc.removeWebhookConfigurations()
+
 	errors := make([]string, 0)
 	if err := wrc.createVerifyMutatingWebhookConfiguration(); err != nil {
 		errors = append(errors, err.Error())