pkg/webhook: log mutating webhook handlers

In this commit, we log the mutating handlers for `OverridePolicy`,
`ClusterPropagationPolicy`, and `MultiClusterService`. Specifically, it logs
information about the mutation of these resources, including the namespace,
name, and the operation type from the admission request.

Signed-off-by: Mohamed Awnallah <mohamedmohey2352@gmail.com>

pkg/webhook/clusterpropagationpolicy/mutating.go

@@ -23,6 +23,7 @@ import (
 
 	"github.com/google/uuid"
 	admissionv1 "k8s.io/api/admission/v1"
+	"k8s.io/klog/v2"
 	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
 	"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
 
@@ -59,6 +60,7 @@ func (a *MutatingAdmission) Handle(_ context.Context, req admission.Request) adm
 	if err != nil {
 		return admission.Errored(http.StatusBadRequest, err)
 	}
+	klog.V(2).Infof("Mutating ClusterPropagationPolicy(%s/%s) for request: %s", req.Namespace, policy.Name, req.Operation)
 
 	// Set default spread constraints if both 'SpreadByField' and 'SpreadByLabel' not set.
 	helper.SetDefaultSpreadConstraints(policy.Spec.Placement.SpreadConstraints)

pkg/webhook/multiclusterservice/mutating.go

@@ -22,6 +22,7 @@ import (
 	"net/http"
 
 	"github.com/google/uuid"
+	"k8s.io/klog/v2"
 	"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
 
 	networkingv1alpha1 "github.com/karmada-io/karmada/pkg/apis/networking/v1alpha1"
@@ -44,6 +45,7 @@ func (a *MutatingAdmission) Handle(_ context.Context, req admission.Request) adm
 	if err != nil {
 		return admission.Errored(http.StatusBadRequest, err)
 	}
+	klog.V(2).Infof("Mutating MultiClusterService(%s/%s) for request: %s", req.Namespace, mcs.Name, req.Operation)
 
 	if util.GetLabelValue(mcs.Labels, networkingv1alpha1.MultiClusterServicePermanentIDLabel) == "" {
 		id := uuid.New().String()

pkg/webhook/overridepolicy/mutating.go

@@ -43,6 +43,7 @@ func (a *MutatingAdmission) Handle(_ context.Context, req admission.Request) adm
 	if err != nil {
 		return admission.Errored(http.StatusBadRequest, err)
 	}
+	klog.V(2).Infof("Mutating OverridePolicy(%s/%s) for request: %s", req.Namespace, policy.Name, req.Operation)
 
 	// Set default namespace for all resource selector if not set.
 	// We need to get the default namespace from the request because for kube-apiserver < v1.24,