Use structured logging for cluster status controller

Signed-off-by: Eugene Ryazanov <yryazanov@bloomberg.net>

.github/workflows/dockerhub-latest-image.yml

@@ -42,7 +42,7 @@ jobs:
         with:
           go-version-file: go.mod
       - name: Install Cosign
-        uses: sigstore/cosign-installer@v3.9.1
+        uses: sigstore/cosign-installer@v3.9.2
         with:
           cosign-release: 'v2.2.3'
       - name: install QEMU

.github/workflows/dockerhub-released-image.yml

@@ -42,7 +42,7 @@ jobs:
         with:
           go-version-file: go.mod
       - name: Install Cosign
-        uses: sigstore/cosign-installer@v3.9.1
+        uses: sigstore/cosign-installer@v3.9.2
         with:
           cosign-release: 'v2.2.3'
       - name: install QEMU

cmd/descheduler/app/descheduler_test.go

@@ -18,6 +18,7 @@ package app
 
 import (
 	"context"
+	"fmt"
 	"net/http"
 	"testing"
 	"time"
@@ -27,6 +28,7 @@ import (
 
 	"github.com/karmada-io/karmada/cmd/descheduler/app/options"
 	"github.com/karmada-io/karmada/pkg/util/names"
+	testingutil "github.com/karmada-io/karmada/pkg/util/testing"
 )
 
 func TestNewDeschedulerCommand(t *testing.T) {
@@ -66,8 +68,10 @@ func TestDeschedulerCommandFlagParsing(t *testing.T) {
 }
 
 func TestServeHealthzAndMetrics(t *testing.T) {
-	healthAddress := "127.0.0.1:8082"
-	metricsAddress := "127.0.0.1:8083"
+	ports, err := testingutil.GetFreePorts("127.0.0.1", 2)
+	require.NoError(t, err)
+	healthAddress := fmt.Sprintf("127.0.0.1:%d", ports[0])
+	metricsAddress := fmt.Sprintf("127.0.0.1:%d", ports[1])
 
 	go serveHealthzAndMetrics(healthAddress, metricsAddress)
 

cmd/scheduler/app/scheduler_test.go

@@ -18,6 +18,7 @@ package app
 
 import (
 	"context"
+	"fmt"
 	"net/http"
 	"testing"
 	"time"
@@ -27,6 +28,7 @@ import (
 
 	"github.com/karmada-io/karmada/cmd/scheduler/app/options"
 	"github.com/karmada-io/karmada/pkg/util/names"
+	testingutil "github.com/karmada-io/karmada/pkg/util/testing"
 )
 
 func TestNewSchedulerCommand(t *testing.T) {
@@ -66,8 +68,10 @@ func TestSchedulerCommandFlagParsing(t *testing.T) {
 }
 
 func TestServeHealthzAndMetrics(t *testing.T) {
-	healthAddress := "127.0.0.1:8082"
-	metricsAddress := "127.0.0.1:8083"
+	ports, err := testingutil.GetFreePorts("127.0.0.1", 2)
+	require.NoError(t, err)
+	healthAddress := fmt.Sprintf("127.0.0.1:%d", ports[0])
+	metricsAddress := fmt.Sprintf("127.0.0.1:%d", ports[1])
 
 	go serveHealthzAndMetrics(healthAddress, metricsAddress)
 

pkg/controllers/federatedhpa/federatedhpa_controller.go

@@ -139,13 +139,13 @@ func (c *FHPAController) SetupWithManager(mgr controllerruntime.Manager) error {
 // The Controller will requeue the Request to be processed again if an error is non-nil or
 // Result.Requeue is true, otherwise upon completion it will remove the work from the queue.
 func (c *FHPAController) Reconcile(ctx context.Context, req controllerruntime.Request) (controllerruntime.Result, error) {
-	klog.V(4).Infof("Reconciling FederatedHPA %s.", req.NamespacedName.String())
+	klog.V(4).InfoS("Reconciling FederatedHPA", "namespacedName", req.NamespacedName.String())
 
 	hpa := &autoscalingv1alpha1.FederatedHPA{}
 	key := req.NamespacedName.String()
 	if err := c.Client.Get(ctx, req.NamespacedName, hpa); err != nil {
 		if apierrors.IsNotFound(err) {
-			klog.Infof("FederatedHPA %s has been deleted in %s", req.Name, req.Namespace)
+			klog.InfoS("FederatedHPA has been deleted in namespace", "hpaName", req.Name, "namespace", req.Namespace)
 			c.recommendationsLock.Lock()
 			delete(c.recommendations, key)
 			c.recommendationsLock.Unlock()
@@ -344,7 +344,7 @@ func (c *FHPAController) reconcileAutoscaler(ctx context.Context, hpa *autoscali
 			retErr = err
 		}
 
-		klog.V(4).Infof("proposing %v desired replicas (based on %s from %s) for %s", metricDesiredReplicas, metricName, metricTimestamp, reference)
+		klog.V(4).InfoS("proposing desired replicas for resource", "desiredReplicas", metricDesiredReplicas, "metricName", metricName, "metricTimestamp", metricTimestamp, "resource", reference)
 
 		rescaleMetric := ""
 		if metricDesiredReplicas > desiredReplicas {
@@ -382,8 +382,8 @@ func (c *FHPAController) reconcileAutoscaler(ctx context.Context, hpa *autoscali
 		setCondition(hpa, autoscalingv2.AbleToScale, corev1.ConditionTrue, "SucceededRescale", "the HPA controller was able to update the target scale to %d", desiredReplicas)
 		c.EventRecorder.Eventf(hpa, corev1.EventTypeNormal, "SuccessfulRescale", "New size: %d; reason: %s", desiredReplicas, rescaleReason)
 		c.storeScaleEvent(hpa.Spec.Behavior, key, currentReplicas, desiredReplicas)
-		klog.Infof("Successful rescale of %s, old size: %d, new size: %d, reason: %s",
-			hpa.Name, currentReplicas, desiredReplicas, rescaleReason)
+		klog.InfoS("Successfully rescaled FederatedHPA",
+			"hpaName", hpa.Name, "currentReplicas", currentReplicas, "desiredReplicas", desiredReplicas, "rescaleReason", rescaleReason)
 
 		if desiredReplicas > currentReplicas {
 			actionLabel = monitor.ActionLabelScaleUp
@@ -391,7 +391,7 @@ func (c *FHPAController) reconcileAutoscaler(ctx context.Context, hpa *autoscali
 			actionLabel = monitor.ActionLabelScaleDown
 		}
 	} else {
-		klog.V(4).Infof("decided not to scale %s to %v (last scale time was %s)", reference, desiredReplicas, hpa.Status.LastScaleTime)
+		klog.V(4).InfoS("decided not to scale resource", "resource", reference, "desiredReplicas", desiredReplicas, "hpaLastScaleTime", hpa.Status.LastScaleTime)
 		desiredReplicas = currentReplicas
 	}
 
@@ -484,19 +484,19 @@ func (c *FHPAController) scaleForTargetCluster(ctx context.Context, clusters []s
 	for _, cluster := range clusters {
 		clusterClient, err := c.ClusterScaleClientSetFunc(cluster, c.Client)
 		if err != nil {
-			klog.Errorf("Failed to get cluster client of cluster %s.", cluster)
+			klog.ErrorS(err, "Failed to get cluster client of cluster", "cluster", cluster)
 			continue
 		}
 
 		clusterInformerManager, err := c.buildPodInformerForCluster(clusterClient)
 		if err != nil {
-			klog.Errorf("Failed to get or create informer for cluster %s. Error: %v.", cluster, err)
+			klog.ErrorS(err, "Failed to get or create informer for cluster", "cluster", cluster)
 			continue
 		}
 
 		scale, err := clusterClient.ScaleClient.Scales(hpa.Namespace).Get(ctx, targetGR, hpa.Spec.ScaleTargetRef.Name, metav1.GetOptions{})
 		if err != nil {
-			klog.Errorf("Failed to get scale subResource of resource %s in cluster %s.", hpa.Spec.ScaleTargetRef.Name, cluster)
+			klog.ErrorS(err, "Failed to get scale subResource of resource in cluster", "resource", hpa.Spec.ScaleTargetRef.Name, "cluster", cluster)
 			continue
 		}
 
@@ -523,19 +523,19 @@ func (c *FHPAController) scaleForTargetCluster(ctx context.Context, clusters []s
 
 		podInterface, err := clusterInformerManager.Lister(podGVR)
 		if err != nil {
-			klog.Errorf("Failed to get podInterface for cluster %s.", cluster)
+			klog.ErrorS(err, "Failed to get podInterface for cluster", "cluster", cluster)
 			continue
 		}
 
 		podLister, ok := podInterface.(listcorev1.PodLister)
 		if !ok {
-			klog.Errorf("Failed to convert interface to PodLister for cluster %s.", cluster)
+			klog.ErrorS(nil, "Failed to convert interface to PodLister for cluster", "cluster", cluster)
 			continue
 		}
 
 		podList, err := podLister.Pods(hpa.Namespace).List(selector)
 		if err != nil {
-			klog.Errorf("Failed to get podList for cluster %s.", cluster)
+			klog.ErrorS(err, "Failed to get podList for cluster", "cluster", cluster)
 			continue
 		}
 
@@ -561,7 +561,7 @@ func (c *FHPAController) buildPodInformerForCluster(clusterScaleClient *util.Clu
 	}
 
 	if _, err := singleClusterInformerManager.Lister(podGVR); err != nil {
-		klog.Errorf("Failed to get the lister for pods: %v", err)
+		klog.ErrorS(err, "Failed to get the lister for pods")
 	}
 
 	c.TypedInformerManager.Start(clusterScaleClient.ClusterName)
@@ -576,7 +576,7 @@ func (c *FHPAController) buildPodInformerForCluster(clusterScaleClient *util.Clu
 		}
 		return nil
 	}(); err != nil {
-		klog.Errorf("Failed to sync cache for cluster: %s, error: %v", clusterScaleClient.ClusterName, err)
+		klog.ErrorS(err, "Failed to sync cache for cluster", "cluster", clusterScaleClient.ClusterName)
 		c.TypedInformerManager.Stop(clusterScaleClient.ClusterName)
 		return nil, err
 	}
@@ -1377,7 +1377,7 @@ func (c *FHPAController) updateStatus(ctx context.Context, hpa *autoscalingv1alp
 		c.EventRecorder.Event(hpa, corev1.EventTypeWarning, "FailedUpdateStatus", err.Error())
 		return fmt.Errorf("failed to update status for %s: %v", hpa.Name, err)
 	}
-	klog.V(2).Infof("Successfully updated status for %s", hpa.Name)
+	klog.V(2).InfoS("Successfully updated status for hpa", "hpaName", hpa.Name)
 	return nil
 }
 

pkg/controllers/federatedhpa/metrics/client.go

@@ -128,7 +128,7 @@ func getPodMetrics(rawMetrics []metricsapi.PodMetrics, resource corev1.ResourceN
 			resValue, found := c.Usage[resource]
 			if !found {
 				missing = true
-				klog.V(2).Infof("missing resource metric %v for %s/%s", resource, m.Namespace, m.Name)
+				klog.V(2).InfoS("missing resource metric", "resource", resource, "namespace", m.Namespace, "name", m.Name)
 				break
 			}
 			podSum += resValue.MilliValue()

pkg/controllers/multiclusterservice/endpointslice_collect_controller.go

@@ -18,6 +18,7 @@ package multiclusterservice
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"reflect"
 	"strings"
@@ -84,7 +85,7 @@ const EndpointSliceCollectControllerName = "endpointslice-collect-controller"
 
 // Reconcile performs a full reconciliation for the object referred to by the Request.
 func (c *EndpointSliceCollectController) Reconcile(ctx context.Context, req controllerruntime.Request) (controllerruntime.Result, error) {
-	klog.V(4).Infof("Reconciling Work %s", req.NamespacedName.String())
+	klog.V(4).InfoS("Reconciling Work", "namespace", req.Namespace, "name", req.Name)
 
 	work := &workv1alpha1.Work{}
 	if err := c.Client.Get(ctx, req.NamespacedName, work); err != nil {
@@ -105,7 +106,7 @@ func (c *EndpointSliceCollectController) Reconcile(ctx context.Context, req cont
 
 	clusterName, err := names.GetClusterName(work.Namespace)
 	if err != nil {
-		klog.Errorf("Failed to get cluster name for work %s/%s", work.Namespace, work.Name)
+		klog.ErrorS(err, "Failed to get cluster name for work", "namespace", work.Namespace, "name", work.Name)
 		return controllerruntime.Result{}, err
 	}
 
@@ -144,14 +145,15 @@ func (c *EndpointSliceCollectController) collectEndpointSlice(key util.QueueKey)
 	ctx := context.Background()
 	fedKey, ok := key.(keys.FederatedKey)
 	if !ok {
-		klog.Errorf("Failed to collect endpointslice as invalid key: %v", key)
+		var ErrInvalidKey = errors.New("invalid key")
+		klog.ErrorS(ErrInvalidKey, "Failed to collect endpointslice as invalid key", "key", key)
 		return fmt.Errorf("invalid key")
 	}
 
-	klog.V(4).Infof("Begin to collect %s %s.", fedKey.Kind, fedKey.NamespaceKey())
+	klog.V(4).InfoS("Begin to collect", "kind", fedKey.Kind, "namespaceKey", fedKey.NamespaceKey())
 	if err := c.handleEndpointSliceEvent(ctx, fedKey); err != nil {
-		klog.Errorf("Failed to handle endpointSlice(%s) event, Error: %v",
-			fedKey.NamespaceKey(), err)
+		klog.ErrorS(err, "Failed to handle endpointSlice event", "namespaceKey",
+			fedKey.NamespaceKey())
 		return err
 	}
 
@@ -161,17 +163,18 @@ func (c *EndpointSliceCollectController) collectEndpointSlice(key util.QueueKey)
 func (c *EndpointSliceCollectController) buildResourceInformers(clusterName string) error {
 	cluster, err := util.GetCluster(c.Client, clusterName)
 	if err != nil {
-		klog.Errorf("Failed to get the given member cluster %s", clusterName)
+		klog.ErrorS(err, "Failed to get the given member cluster", "cluster", clusterName)
 		return err
 	}
 
 	if !util.IsClusterReady(&cluster.Status) {
-		klog.Errorf("Stop collect endpointslice for cluster(%s) as cluster not ready.", cluster.Name)
+		var ErrClusterNotReady = errors.New("cluster not ready")
+		klog.ErrorS(ErrClusterNotReady, "Stop collect endpointslice for cluster as cluster not ready.", "cluster", cluster.Name)
 		return fmt.Errorf("cluster(%s) not ready", cluster.Name)
 	}
 
 	if err := c.registerInformersAndStart(cluster); err != nil {
-		klog.Errorf("Failed to register informer for Cluster %s. Error: %v.", cluster.Name, err)
+		klog.ErrorS(err, "Failed to register informer for Cluster", "cluster", cluster.Name)
 		return err
 	}
 
@@ -185,7 +188,7 @@ func (c *EndpointSliceCollectController) registerInformersAndStart(cluster *clus
 	if singleClusterInformerManager == nil {
 		dynamicClusterClient, err := c.ClusterDynamicClientSetFunc(cluster.Name, c.Client, c.ClusterClientOption)
 		if err != nil {
-			klog.Errorf("Failed to build dynamic cluster client for cluster %s.", cluster.Name)
+			klog.ErrorS(err, "Failed to build dynamic cluster client for cluster", "cluster", cluster.Name)
 			return err
 		}
 		singleClusterInformerManager = c.InformerManager.ForCluster(dynamicClusterClient.ClusterName, dynamicClusterClient.DynamicClientSet, 0)
@@ -220,7 +223,7 @@ func (c *EndpointSliceCollectController) registerInformersAndStart(cluster *clus
 		}
 		return nil
 	}(); err != nil {
-		klog.Errorf("Failed to sync cache for cluster: %s, error: %v", cluster.Name, err)
+		klog.ErrorS(err, "Failed to sync cache for cluster", "cluster", cluster.Name)
 		c.InformerManager.Stop(cluster.Name)
 		return err
 	}
@@ -245,7 +248,7 @@ func (c *EndpointSliceCollectController) genHandlerAddFunc(clusterName string) f
 		curObj := obj.(runtime.Object)
 		key, err := keys.FederatedKeyFunc(clusterName, curObj)
 		if err != nil {
-			klog.Warningf("Failed to generate key for obj: %s", curObj.GetObjectKind().GroupVersionKind())
+			klog.ErrorS(err, "Failed to generate key for obj", "gvk", curObj.GetObjectKind().GroupVersionKind())
 			return
 		}
 		c.worker.Add(key)
@@ -258,7 +261,7 @@ func (c *EndpointSliceCollectController) genHandlerUpdateFunc(clusterName string
 		if !reflect.DeepEqual(oldObj, newObj) {
 			key, err := keys.FederatedKeyFunc(clusterName, curObj)
 			if err != nil {
-				klog.Warningf("Failed to generate key for obj: %s", curObj.GetObjectKind().GroupVersionKind())
+				klog.ErrorS(err, "Failed to generate key for obj", "gvk", curObj.GetObjectKind().GroupVersionKind())
 				return
 			}
 			c.worker.Add(key)
@@ -278,7 +281,7 @@ func (c *EndpointSliceCollectController) genHandlerDeleteFunc(clusterName string
 		oldObj := obj.(runtime.Object)
 		key, err := keys.FederatedKeyFunc(clusterName, oldObj)
 		if err != nil {
-			klog.Warningf("Failed to generate key for obj: %s", oldObj.GetObjectKind().GroupVersionKind())
+			klog.ErrorS(err, "Failed to generate key for obj", "gvk", oldObj.GetObjectKind().GroupVersionKind())
 			return
 		}
 		c.worker.Add(key)
@@ -308,7 +311,7 @@ func (c *EndpointSliceCollectController) handleEndpointSliceEvent(ctx context.Co
 			util.MultiClusterServiceNamespaceLabel: endpointSliceKey.Namespace,
 			util.MultiClusterServiceNameLabel:      util.GetLabelValue(endpointSliceObj.GetLabels(), discoveryv1.LabelServiceName),
 		})}); err != nil {
-		klog.Errorf("Failed to list workList reported by endpointSlice(%s/%s), error: %v", endpointSliceKey.Namespace, endpointSliceKey.Name, err)
+		klog.ErrorS(err, "Failed to list workList reported by endpointSlice", "namespace", endpointSliceKey.Namespace, "name", endpointSliceKey.Name)
 		return err
 	}
 
@@ -324,8 +327,8 @@ func (c *EndpointSliceCollectController) handleEndpointSliceEvent(ctx context.Co
 	}
 
 	if err = c.reportEndpointSliceWithEndpointSliceCreateOrUpdate(ctx, endpointSliceKey.Cluster, endpointSliceObj); err != nil {
-		klog.Errorf("Failed to handle endpointSlice(%s) event, Error: %v",
-			endpointSliceKey.NamespaceKey(), err)
+		klog.ErrorS(err, "Failed to handle endpointSlice event", "namespaceKey",
+			endpointSliceKey.NamespaceKey())
 		return err
 	}
 
@@ -336,7 +339,7 @@ func (c *EndpointSliceCollectController) collectTargetEndpointSlice(ctx context.
 	manager := c.InformerManager.GetSingleClusterManager(clusterName)
 	if manager == nil {
 		err := fmt.Errorf("failed to get informer manager for cluster %s", clusterName)
-		klog.Errorf("%v", err)
+		klog.ErrorS(err, "Failed to get informer manager for cluster")
 		return err
 	}
 
@@ -347,13 +350,13 @@ func (c *EndpointSliceCollectController) collectTargetEndpointSlice(ctx context.
 	})
 	epsList, err := manager.Lister(discoveryv1.SchemeGroupVersion.WithResource("endpointslices")).ByNamespace(svcNamespace).List(selector)
 	if err != nil {
-		klog.Errorf("Failed to list EndpointSlice for Service(%s/%s) in cluster(%s), Error: %v", svcNamespace, svcName, clusterName, err)
+		klog.ErrorS(err, "Failed to list EndpointSlice for Service in a cluster", "namespace", svcNamespace, "name", svcName, "cluster", clusterName)
 		return err
 	}
 	for _, epsObj := range epsList {
 		eps := &discoveryv1.EndpointSlice{}
 		if err = helper.ConvertToTypedObject(epsObj, eps); err != nil {
-			klog.Errorf("Failed to convert object to EndpointSlice, error: %v", err)
+			klog.ErrorS(err, "Failed to convert object to EndpointSlice")
 			return err
 		}
 		if util.GetLabelValue(eps.GetLabels(), discoveryv1.LabelManagedBy) == util.EndpointSliceDispatchControllerLabelValue {
@@ -361,7 +364,7 @@ func (c *EndpointSliceCollectController) collectTargetEndpointSlice(ctx context.
 		}
 		epsUnstructured, err := helper.ToUnstructured(eps)
 		if err != nil {
-			klog.Errorf("Failed to convert EndpointSlice %s/%s to unstructured, error: %v", eps.GetNamespace(), eps.GetName(), err)
+			klog.ErrorS(err, "Failed to convert EndpointSlice to unstructured", "namespace", eps.GetNamespace(), "name", eps.GetName())
 			return err
 		}
 		if err = c.reportEndpointSliceWithEndpointSliceCreateOrUpdate(ctx, clusterName, epsUnstructured); err != nil {
@@ -394,7 +397,7 @@ func reportEndpointSlice(ctx context.Context, c client.Client, endpointSlice *un
 
 	// indicate the Work should be not propagated since it's collected resource.
 	if err := ctrlutil.CreateOrUpdateWork(ctx, c, workMeta, endpointSlice, ctrlutil.WithSuspendDispatching(true)); err != nil {
-		klog.Errorf("Failed to create or update work(%s/%s), Error: %v", workMeta.Namespace, workMeta.Name, err)
+		klog.ErrorS(err, "Failed to create or update work", "namespace", workMeta.Namespace, "name", workMeta.Name)
 		return err
 	}
 
@@ -408,7 +411,7 @@ func getEndpointSliceWorkMeta(ctx context.Context, c client.Client, ns string, w
 		Namespace: ns,
 		Name:      workName,
 	}, existWork); err != nil && !apierrors.IsNotFound(err) {
-		klog.Errorf("Get EndpointSlice work(%s/%s) error:%v", ns, workName, err)
+		klog.ErrorS(err, "Get EndpointSlice work", "namespace", ns, "name", workName)
 		return metav1.ObjectMeta{}, err
 	}
 
@@ -449,7 +452,7 @@ func cleanupWorkWithEndpointSliceDelete(ctx context.Context, c client.Client, en
 		if apierrors.IsNotFound(err) {
 			return nil
 		}
-		klog.Errorf("Failed to get work(%s) in executionSpace(%s): %v", workNamespaceKey.String(), executionSpace, err)
+		klog.ErrorS(err, "Failed to get work in executionSpace", "namespaceKey", workNamespaceKey.String(), "executionSpace", executionSpace)
 		return err
 	}
 
@@ -472,14 +475,14 @@ func cleanProviderClustersEndpointSliceWork(ctx context.Context, c client.Client
 		work.Labels[util.EndpointSliceWorkManagedByLabel] = strings.Join(controllerSet.UnsortedList(), ".")
 
 		if err := c.Update(ctx, work); err != nil {
-			klog.Errorf("Failed to update work(%s/%s): %v", work.Namespace, work.Name, err)
+			klog.ErrorS(err, "Failed to update work", "namespace", work.Namespace, "name", work.Name)
 			return err
 		}
 		return nil
 	}
 
 	if err := c.Delete(ctx, work); err != nil {
-		klog.Errorf("Failed to delete work(%s/%s): %v", work.Namespace, work.Name, err)
+		klog.ErrorS(err, "Failed to delete work", "namespace", work.Namespace, "name", work.Name)
 		return err
 	}
 

pkg/controllers/multiclusterservice/endpointslice_dispatch_controller.go

@@ -66,7 +66,7 @@ type EndpointsliceDispatchController struct {
 
 // Reconcile performs a full reconciliation for the object referred to by the Request.
 func (c *EndpointsliceDispatchController) Reconcile(ctx context.Context, req controllerruntime.Request) (controllerruntime.Result, error) {
-	klog.V(4).Infof("Reconciling Work %s", req.NamespacedName.String())
+	klog.V(4).InfoS("Reconciling Work", "namespacedName", req.NamespacedName.String())
 
 	work := &workv1alpha1.Work{}
 	if err := c.Client.Get(ctx, req.NamespacedName, work); err != nil {
@@ -83,7 +83,7 @@ func (c *EndpointsliceDispatchController) Reconcile(ctx context.Context, req con
 	mcsName := util.GetLabelValue(work.Labels, util.MultiClusterServiceNameLabel)
 	if !work.DeletionTimestamp.IsZero() || mcsName == "" {
 		if err := c.cleanupEndpointSliceFromConsumerClusters(ctx, work); err != nil {
-			klog.Errorf("Failed to cleanup EndpointSlice from consumer clusters for work %s/%s:%v", work.Namespace, work.Name, err)
+			klog.ErrorS(err, "Failed to cleanup EndpointSlice from consumer clusters for work", "namespace", work.Namespace, "name", work.Name)
 			return controllerruntime.Result{}, err
 		}
 		return controllerruntime.Result{}, nil
@@ -93,7 +93,7 @@ func (c *EndpointsliceDispatchController) Reconcile(ctx context.Context, req con
 	mcs := &networkingv1alpha1.MultiClusterService{}
 	if err := c.Client.Get(ctx, types.NamespacedName{Namespace: mcsNS, Name: mcsName}, mcs); err != nil {
 		if apierrors.IsNotFound(err) {
-			klog.Warningf("MultiClusterService %s/%s is not found", mcsNS, mcsName)
+			klog.ErrorS(err, "MultiClusterService is not found", "namespace", mcsNS, "name", mcsName)
 			return controllerruntime.Result{}, nil
 		}
 		return controllerruntime.Result{}, err
@@ -185,7 +185,7 @@ func (c *EndpointsliceDispatchController) newClusterFunc() handler.MapFunc {
 
 		mcsList := &networkingv1alpha1.MultiClusterServiceList{}
 		if err := c.Client.List(ctx, mcsList, &client.ListOptions{}); err != nil {
-			klog.Errorf("Failed to list MultiClusterService, error: %v", err)
+			klog.ErrorS(err, "Failed to list MultiClusterService")
 			return nil
 		}
 
@@ -193,7 +193,7 @@ func (c *EndpointsliceDispatchController) newClusterFunc() handler.MapFunc {
 		for _, mcs := range mcsList.Items {
 			clusterSet, err := helper.GetConsumerClusters(c.Client, mcs.DeepCopy())
 			if err != nil {
-				klog.Errorf("Failed to get provider clusters, error: %v", err)
+				klog.ErrorS(err, "Failed to get provider clusters")
 				continue
 			}
 
@@ -203,7 +203,7 @@ func (c *EndpointsliceDispatchController) newClusterFunc() handler.MapFunc {
 
 			workList, err := c.getClusterEndpointSliceWorks(ctx, mcs.Namespace, mcs.Name)
 			if err != nil {
-				klog.Errorf("Failed to list work, error: %v", err)
+				klog.ErrorS(err, "Failed to list work")
 				continue
 			}
 			for _, work := range workList {
@@ -229,7 +229,7 @@ func (c *EndpointsliceDispatchController) getClusterEndpointSliceWorks(ctx conte
 			util.MultiClusterServiceNamespaceLabel: mcsNamespace,
 		}),
 	}); err != nil {
-		klog.Errorf("Failed to list work, error: %v", err)
+		klog.ErrorS(err, "Failed to list work")
 		return nil, err
 	}
 
@@ -249,7 +249,7 @@ func (c *EndpointsliceDispatchController) newMultiClusterServiceFunc() handler.M
 
 		workList, err := c.getClusterEndpointSliceWorks(ctx, mcsNamespace, mcsName)
 		if err != nil {
-			klog.Errorf("Failed to list work, error: %v", err)
+			klog.ErrorS(err, "Failed to list work")
 			return nil
 		}
 
@@ -273,7 +273,7 @@ func (c *EndpointsliceDispatchController) cleanOrphanDispatchedEndpointSlice(ctx
 			util.MultiClusterServiceNameLabel:      mcs.Name,
 			util.MultiClusterServiceNamespaceLabel: mcs.Namespace,
 		})}); err != nil {
-		klog.Errorf("Failed to list works, error is: %v", err)
+		klog.ErrorS(err, "Failed to list works")
 		return err
 	}
 
@@ -285,13 +285,13 @@ func (c *EndpointsliceDispatchController) cleanOrphanDispatchedEndpointSlice(ctx
 
 		consumerClusters, err := helper.GetConsumerClusters(c.Client, mcs)
 		if err != nil {
-			klog.Errorf("Failed to get consumer clusters, error is: %v", err)
+			klog.ErrorS(err, "Failed to get consumer clusters")
 			return err
 		}
 
 		cluster, err := names.GetClusterName(work.Namespace)
 		if err != nil {
-			klog.Errorf("Failed to get cluster name for work %s/%s", work.Namespace, work.Name)
+			klog.ErrorS(err, "Failed to get cluster name for work", "namespace", work.Namespace, "name", work.Name)
 			return err
 		}
 
@@ -300,7 +300,7 @@ func (c *EndpointsliceDispatchController) cleanOrphanDispatchedEndpointSlice(ctx
 		}
 
 		if err = c.Client.Delete(ctx, work.DeepCopy()); err != nil {
-			klog.Errorf("Failed to delete work %s/%s, error is: %v", work.Namespace, work.Name, err)
+			klog.ErrorS(err, "Failed to delete work", "namespace", work.Namespace, "name", work.Name)
 			return err
 		}
 	}
@@ -311,13 +311,13 @@ func (c *EndpointsliceDispatchController) cleanOrphanDispatchedEndpointSlice(ctx
 func (c *EndpointsliceDispatchController) dispatchEndpointSlice(ctx context.Context, work *workv1alpha1.Work, mcs *networkingv1alpha1.MultiClusterService) error {
 	epsSourceCluster, err := names.GetClusterName(work.Namespace)
 	if err != nil {
-		klog.Errorf("Failed to get EndpointSlice source cluster name for work %s/%s", work.Namespace, work.Name)
+		klog.ErrorS(err, "Failed to get EndpointSlice source cluster name for work", "namespace", work.Namespace, "name", work.Name)
 		return err
 	}
 
 	consumerClusters, err := helper.GetConsumerClusters(c.Client, mcs)
 	if err != nil {
-		klog.Errorf("Failed to get consumer clusters, error is: %v", err)
+		klog.ErrorS(err, "Failed to get consumer clusters")
 		return err
 	}
 	for clusterName := range consumerClusters {
@@ -330,7 +330,7 @@ func (c *EndpointsliceDispatchController) dispatchEndpointSlice(ctx context.Cont
 				c.EventRecorder.Eventf(mcs, corev1.EventTypeWarning, events.EventReasonClusterNotFound, "Consumer cluster %s is not found", clusterName)
 				continue
 			}
-			klog.Errorf("Failed to get cluster %s, error is: %v", clusterName, err)
+			klog.ErrorS(err, "Failed to get cluster", "cluster", clusterName)
 			return err
 		}
 		if !util.IsClusterReady(&clusterObj.Status) {
@@ -361,13 +361,13 @@ func (c *EndpointsliceDispatchController) ensureEndpointSliceWork(ctx context.Co
 	manifest := work.Spec.Workload.Manifests[0]
 	unstructuredObj := &unstructured.Unstructured{}
 	if err := unstructuredObj.UnmarshalJSON(manifest.Raw); err != nil {
-		klog.Errorf("Failed to unmarshal work manifest, error is: %v", err)
+		klog.ErrorS(err, "Failed to unmarshal work manifest")
 		return err
 	}
 
 	endpointSlice := &discoveryv1.EndpointSlice{}
 	if err := helper.ConvertToTypedObject(unstructuredObj, endpointSlice); err != nil {
-		klog.Errorf("Failed to convert unstructured object to typed object, error is: %v", err)
+		klog.ErrorS(err, "Failed to convert unstructured object to typed object")
 		return err
 	}
 
@@ -397,12 +397,12 @@ func (c *EndpointsliceDispatchController) ensureEndpointSliceWork(ctx context.Co
 	}
 	unstructuredEPS, err := helper.ToUnstructured(endpointSlice)
 	if err != nil {
-		klog.Errorf("Failed to convert typed object to unstructured object, error is: %v", err)
+		klog.ErrorS(err, "Failed to convert typed object to unstructured object")
 		return err
 	}
 	if err := ctrlutil.CreateOrUpdateWork(ctx, c.Client, workMeta, unstructuredEPS); err != nil {
-		klog.Errorf("Failed to dispatch EndpointSlice %s/%s from %s to cluster %s:%v",
-			work.GetNamespace(), work.GetName(), providerCluster, consumerCluster, err)
+		klog.ErrorS(err, "Failed to dispatch EndpointSlice",
+			"namespace", work.GetNamespace(), "name", work.GetName(), "providerCluster", providerCluster, "consumerCluster", consumerCluster)
 		return err
 	}
 
@@ -414,13 +414,13 @@ func (c *EndpointsliceDispatchController) cleanupEndpointSliceFromConsumerCluste
 	workList := &workv1alpha1.WorkList{}
 	err := c.Client.List(ctx, workList)
 	if err != nil {
-		klog.Errorf("Failed to list works serror: %v", err)
+		klog.ErrorS(err, "Failed to list works")
 		return err
 	}
 
 	epsSourceCluster, err := names.GetClusterName(work.Namespace)
 	if err != nil {
-		klog.Errorf("Failed to get EndpointSlice provider cluster name for work %s/%s", work.Namespace, work.Name)
+		klog.ErrorS(err, "Failed to get EndpointSlice provider cluster name for work", "namespace", work.Namespace, "name", work.Name)
 		return err
 	}
 	for _, item := range workList.Items {
@@ -434,7 +434,7 @@ func (c *EndpointsliceDispatchController) cleanupEndpointSliceFromConsumerCluste
 
 	if controllerutil.RemoveFinalizer(work, util.MCSEndpointSliceDispatchControllerFinalizer) {
 		if err := c.Client.Update(ctx, work); err != nil {
-			klog.Errorf("Failed to remove %s finalizer for work %s/%s:%v", util.MCSEndpointSliceDispatchControllerFinalizer, work.Namespace, work.Name, err)
+			klog.ErrorS(err, "Failed to remove finalizer for work", "finalizer", util.MCSEndpointSliceDispatchControllerFinalizer, "namespace", work.Namespace, "name", work.Name)
 			return err
 		}
 	}

pkg/controllers/multiclusterservice/mcs_controller.go

@@ -69,7 +69,7 @@ type MCSController struct {
 // The Controller will requeue the Request to be processed again if an error is non-nil or
 // Result.Requeue is true, otherwise upon completion it will remove the work from the queue.
 func (c *MCSController) Reconcile(ctx context.Context, req controllerruntime.Request) (controllerruntime.Result, error) {
-	klog.V(4).Infof("Reconciling MultiClusterService(%s/%s)", req.Namespace, req.Name)
+	klog.V(4).InfoS("Reconciling MultiClusterService", "namespace", req.Namespace, "name", req.Name)
 
 	mcs := &networkingv1alpha1.MultiClusterService{}
 	if err := c.Client.Get(ctx, req.NamespacedName, mcs); err != nil {
@@ -77,7 +77,7 @@ func (c *MCSController) Reconcile(ctx context.Context, req controllerruntime.Req
 			// The mcs no longer exist, in which case we stop processing.
 			return controllerruntime.Result{}, nil
 		}
-		klog.Errorf("Failed to get MultiClusterService object(%s):%v", req.NamespacedName, err)
+		klog.ErrorS(err, "Failed to get MultiClusterService object", "namespacedName", req.NamespacedName)
 		return controllerruntime.Result{}, err
 	}
 
@@ -103,7 +103,7 @@ func (c *MCSController) Reconcile(ctx context.Context, req controllerruntime.Req
 }
 
 func (c *MCSController) handleMultiClusterServiceDelete(ctx context.Context, mcs *networkingv1alpha1.MultiClusterService) (controllerruntime.Result, error) {
-	klog.V(4).Infof("Begin to handle MultiClusterService(%s/%s) delete event", mcs.Namespace, mcs.Name)
+	klog.V(4).InfoS("Begin to handle MultiClusterService delete event", "namespace", mcs.Namespace, "name", mcs.Name)
 
 	if err := c.retrieveService(ctx, mcs); err != nil {
 		c.EventRecorder.Event(mcs, corev1.EventTypeWarning, events.EventReasonSyncServiceFailed,
@@ -120,12 +120,12 @@ func (c *MCSController) handleMultiClusterServiceDelete(ctx context.Context, mcs
 	if controllerutil.RemoveFinalizer(mcs, util.MCSControllerFinalizer) {
 		err := c.Client.Update(ctx, mcs)
 		if err != nil {
-			klog.Errorf("Failed to update MultiClusterService(%s/%s) with finalizer:%v", mcs.Namespace, mcs.Name, err)
+			klog.ErrorS(err, "Failed to update MultiClusterService with finalizer", "namespace", mcs.Namespace, "name", mcs.Name)
 			return controllerruntime.Result{}, err
 		}
 	}
 
-	klog.V(4).Infof("Success to delete MultiClusterService(%s/%s)", mcs.Namespace, mcs.Name)
+	klog.V(4).InfoS("Success to delete MultiClusterService", "namespace", mcs.Namespace, "name", mcs.Name)
 	return controllerruntime.Result{}, nil
 }
 
@@ -135,7 +135,7 @@ func (c *MCSController) retrieveMultiClusterService(ctx context.Context, mcs *ne
 		networkingv1alpha1.MultiClusterServicePermanentIDLabel: mcsID,
 	})
 	if err != nil {
-		klog.Errorf("Failed to list work by MultiClusterService(%s/%s): %v", mcs.Namespace, mcs.Name, err)
+		klog.ErrorS(err, "Failed to list work by MultiClusterService", "namespace", mcs.Namespace, "name", mcs.Name)
 		return err
 	}
 
@@ -145,7 +145,7 @@ func (c *MCSController) retrieveMultiClusterService(ctx context.Context, mcs *ne
 		}
 		clusterName, err := names.GetClusterName(work.Namespace)
 		if err != nil {
-			klog.Errorf("Failed to get member cluster name for work %s/%s:%v", work.Namespace, work.Name, work)
+			klog.ErrorS(err, "Failed to get member cluster name for work", "namespace", work.Namespace, "name", work.Name)
 			continue
 		}
 
@@ -154,17 +154,17 @@ func (c *MCSController) retrieveMultiClusterService(ctx context.Context, mcs *ne
 		}
 
 		if err = c.cleanProviderEndpointSliceWork(ctx, work.DeepCopy()); err != nil {
-			klog.Errorf("Failed to clean provider EndpointSlice work(%s/%s):%v", work.Namespace, work.Name, err)
+			klog.ErrorS(err, "Failed to clean provider EndpointSlice work", "namespace", work.Namespace, "name", work.Name)
 			return err
 		}
 
 		if err = c.Client.Delete(ctx, work.DeepCopy()); err != nil && !apierrors.IsNotFound(err) {
-			klog.Errorf("Error while deleting work(%s/%s): %v", work.Namespace, work.Name, err)
+			klog.ErrorS(err, "Error while deleting work", "namespace", work.Namespace, "name", work.Name)
 			return err
 		}
 	}
 
-	klog.V(4).Infof("Success to clean up MultiClusterService(%s/%s) work: %v", mcs.Namespace, mcs.Name, err)
+	klog.V(4).InfoS("Success to clean up MultiClusterService", "namespace", mcs.Namespace, "name", mcs.Name)
 	return nil
 }
 
@@ -177,7 +177,7 @@ func (c *MCSController) cleanProviderEndpointSliceWork(ctx context.Context, work
 			util.MultiClusterServiceNamespaceLabel: util.GetLabelValue(work.Labels, util.MultiClusterServiceNamespaceLabel),
 		}),
 	}); err != nil {
-		klog.Errorf("Failed to list workList reported by work(MultiClusterService)(%s/%s): %v", work.Namespace, work.Name, err)
+		klog.ErrorS(err, "Failed to list workList reported by work(MultiClusterService)", "namespace", work.Namespace, "name", work.Name)
 		return err
 	}
 
@@ -204,16 +204,16 @@ func (c *MCSController) cleanProviderEndpointSliceWork(ctx context.Context, work
 }
 
 func (c *MCSController) handleMultiClusterServiceCreateOrUpdate(ctx context.Context, mcs *networkingv1alpha1.MultiClusterService) error {
-	klog.V(4).Infof("Begin to handle MultiClusterService(%s/%s) create or update event", mcs.Namespace, mcs.Name)
+	klog.V(4).InfoS("Begin to handle MultiClusterService create or update event", "namespace", mcs.Namespace, "name", mcs.Name)
 
 	providerClusters, err := helper.GetProviderClusters(c.Client, mcs)
 	if err != nil {
-		klog.Errorf("Failed to get provider clusters by MultiClusterService(%s/%s):%v", mcs.Namespace, mcs.Name, err)
+		klog.ErrorS(err, "Failed to get provider clusters by MultiClusterService", "namespace", mcs.Namespace, "name", mcs.Name)
 		return err
 	}
 	consumerClusters, err := helper.GetConsumerClusters(c.Client, mcs)
 	if err != nil {
-		klog.Errorf("Failed to get consumer clusters by MultiClusterService(%s/%s):%v", mcs.Namespace, mcs.Name, err)
+		klog.ErrorS(err, "Failed to get consumer clusters by MultiClusterService", "namespace", mcs.Namespace, "name", mcs.Name)
 		return err
 	}
 
@@ -228,7 +228,7 @@ func (c *MCSController) handleMultiClusterServiceCreateOrUpdate(ctx context.Cont
 		if controllerutil.RemoveFinalizer(mcs, util.MCSControllerFinalizer) {
 			err := c.Client.Update(ctx, mcs)
 			if err != nil {
-				klog.Errorf("Failed to remove finalizer(%s) from MultiClusterService(%s/%s):%v", util.MCSControllerFinalizer, mcs.Namespace, mcs.Name, err)
+				klog.ErrorS(err, "Failed to remove finalizer from MultiClusterService", "finalizer", util.MCSControllerFinalizer, "namespace", mcs.Namespace, "name", mcs.Name)
 				return err
 			}
 		}
@@ -239,7 +239,7 @@ func (c *MCSController) handleMultiClusterServiceCreateOrUpdate(ctx context.Cont
 	if controllerutil.AddFinalizer(mcs, util.MCSControllerFinalizer) {
 		err = c.Client.Update(ctx, mcs)
 		if err != nil {
-			klog.Errorf("Failed to add finalizer(%s) to MultiClusterService(%s/%s): %v ", util.MCSControllerFinalizer, mcs.Namespace, mcs.Name, err)
+			klog.ErrorS(err, "Failed to add finalizer to MultiClusterService", "finalizer", util.MCSControllerFinalizer, "namespace", mcs.Namespace, "name", mcs.Name)
 			return err
 		}
 	}
@@ -259,7 +259,7 @@ func (c *MCSController) handleMultiClusterServiceCreateOrUpdate(ctx context.Cont
 	err = c.Client.Get(ctx, types.NamespacedName{Namespace: mcs.Namespace, Name: mcs.Name}, svc)
 	// If the Service is deleted, the Service's ResourceBinding will be cleaned by GC
 	if err != nil {
-		klog.Errorf("Failed to get service(%s/%s):%v", mcs.Namespace, mcs.Name, err)
+		klog.ErrorS(err, "Failed to get service", "namespace", mcs.Namespace, "name", mcs.Name)
 		return err
 	}
 
@@ -268,7 +268,7 @@ func (c *MCSController) handleMultiClusterServiceCreateOrUpdate(ctx context.Cont
 		return err
 	}
 
-	klog.V(4).Infof("Success to reconcile MultiClusterService(%s/%s)", mcs.Namespace, mcs.Name)
+	klog.V(4).InfoS("Success to reconcile MultiClusterService", "namespace", mcs.Namespace, "name", mcs.Name)
 	return nil
 }
 
@@ -280,7 +280,7 @@ func (c *MCSController) propagateMultiClusterService(ctx context.Context, mcs *n
 				c.EventRecorder.Eventf(mcs, corev1.EventTypeWarning, events.EventReasonClusterNotFound, "Provider cluster %s is not found", clusterName)
 				continue
 			}
-			klog.Errorf("Failed to get cluster %s, error is: %v", clusterName, err)
+			klog.ErrorS(err, "Failed to get cluster", "cluster", clusterName)
 			return err
 		}
 		if !util.IsClusterReady(&clusterObj.Status) {
@@ -306,12 +306,12 @@ func (c *MCSController) propagateMultiClusterService(ctx context.Context, mcs *n
 
 		mcsObj, err := helper.ToUnstructured(mcs)
 		if err != nil {
-			klog.Errorf("Failed to convert MultiClusterService(%s/%s) to unstructured object, err is %v", mcs.Namespace, mcs.Name, err)
+			klog.ErrorS(err, "Failed to convert MultiClusterService to unstructured object", "namespace", mcs.Namespace, "name", mcs.Name)
 			return err
 		}
 		if err = ctrlutil.CreateOrUpdateWork(ctx, c, workMeta, mcsObj, ctrlutil.WithSuspendDispatching(true)); err != nil {
-			klog.Errorf("Failed to create or update MultiClusterService(%s/%s) work in the given member cluster %s, err is %v",
-				mcs.Namespace, mcs.Name, clusterName, err)
+			klog.ErrorS(err, "Failed to create or update MultiClusterService work in the given member cluster",
+				"namespace", mcs.Namespace, "name", mcs.Name, "cluster", clusterName)
 			return err
 		}
 	}
@@ -323,7 +323,7 @@ func (c *MCSController) retrieveService(ctx context.Context, mcs *networkingv1al
 	svc := &corev1.Service{}
 	err := c.Client.Get(ctx, types.NamespacedName{Namespace: mcs.Namespace, Name: mcs.Name}, svc)
 	if err != nil && !apierrors.IsNotFound(err) {
-		klog.Errorf("Failed to get service(%s/%s):%v", mcs.Namespace, mcs.Name, err)
+		klog.ErrorS(err, "Failed to get service", "namespace", mcs.Namespace, "name", mcs.Name)
 		return err
 	}
 
@@ -338,7 +338,7 @@ func (c *MCSController) retrieveService(ctx context.Context, mcs *networkingv1al
 	}
 
 	if err = c.Client.Update(ctx, svcCopy); err != nil {
-		klog.Errorf("Failed to update service(%s/%s):%v", mcs.Namespace, mcs.Name, err)
+		klog.ErrorS(err, "Failed to update service", "namespace", mcs.Namespace, "name", mcs.Name)
 		return err
 	}
 
@@ -348,7 +348,7 @@ func (c *MCSController) retrieveService(ctx context.Context, mcs *networkingv1al
 		if apierrors.IsNotFound(err) {
 			return nil
 		}
-		klog.Errorf("Failed to get ResourceBinding(%s/%s):%v", mcs.Namespace, names.GenerateBindingName(svc.Kind, svc.Name), err)
+		klog.ErrorS(err, "Failed to get ResourceBinding", "namespace", mcs.Namespace, "name", names.GenerateBindingName(svc.Kind, svc.Name))
 		return err
 	}
 
@@ -364,7 +364,7 @@ func (c *MCSController) retrieveService(ctx context.Context, mcs *networkingv1al
 		delete(rbCopy.Labels, networkingv1alpha1.MultiClusterServicePermanentIDLabel)
 	}
 	if err := c.Client.Update(ctx, rbCopy); err != nil {
-		klog.Errorf("Failed to update ResourceBinding(%s/%s):%v", mcs.Namespace, names.GenerateBindingName(svc.Kind, svc.Name), err)
+		klog.ErrorS(err, "Failed to update ResourceBinding", "namespace", mcs.Namespace, "name", names.GenerateBindingName(svc.Kind, svc.Name))
 		return err
 	}
 
@@ -374,13 +374,13 @@ func (c *MCSController) retrieveService(ctx context.Context, mcs *networkingv1al
 func (c *MCSController) propagateService(ctx context.Context, mcs *networkingv1alpha1.MultiClusterService, svc *corev1.Service,
 	providerClusters, consumerClusters sets.Set[string]) error {
 	if err := c.claimMultiClusterServiceForService(ctx, svc, mcs); err != nil {
-		klog.Errorf("Failed to claim for Service(%s/%s), err is %v", svc.Namespace, svc.Name, err)
+		klog.ErrorS(err, "Failed to claim for Service", "namespace", svc.Namespace, "name", svc.Name)
 		return err
 	}
 
 	binding, err := c.buildResourceBinding(svc, mcs, providerClusters, consumerClusters)
 	if err != nil {
-		klog.Errorf("Failed to build ResourceBinding for Service(%s/%s), err is %v", svc.Namespace, svc.Name, err)
+		klog.ErrorS(err, "Failed to build ResourceBinding for Service", "namespace", svc.Namespace, "name", svc.Name)
 		return err
 	}
 
@@ -417,17 +417,17 @@ func (c *MCSController) propagateService(ctx context.Context, mcs *networkingv1a
 		return nil
 	})
 	if err != nil {
-		klog.Errorf("Failed to create/update ResourceBinding(%s/%s):%v", bindingCopy.Namespace, bindingCopy.Name, err)
+		klog.ErrorS(err, "Failed to create/update ResourceBinding", "namespace", bindingCopy.Namespace, "name", bindingCopy.Name)
 		return err
 	}
 
 	switch operationResult {
 	case controllerutil.OperationResultCreated:
-		klog.Infof("Create ResourceBinding(%s/%s) successfully.", binding.GetNamespace(), binding.GetName())
+		klog.InfoS("Create ResourceBinding successfully.", "namespace", binding.GetNamespace(), "name", binding.GetName())
 	case controllerutil.OperationResultUpdated:
-		klog.Infof("Update ResourceBinding(%s/%s) successfully.", binding.GetNamespace(), binding.GetName())
+		klog.InfoS("Update ResourceBinding successfully.", "namespace", binding.GetNamespace(), "name", binding.GetName())
 	default:
-		klog.V(2).Infof("ResourceBinding(%s/%s) is up to date.", binding.GetNamespace(), binding.GetName())
+		klog.V(2).InfoS("ResourceBinding is up to date.", "namespace", binding.GetNamespace(), "name", binding.GetName())
 	}
 
 	return nil
@@ -500,7 +500,7 @@ func (c *MCSController) claimMultiClusterServiceForService(ctx context.Context,
 	svcCopy.Annotations[networkingv1alpha1.MultiClusterServiceNamespaceAnnotation] = mcs.Namespace
 
 	if err := c.Client.Update(ctx, svcCopy); err != nil {
-		klog.Errorf("Failed to update service(%s/%s):%v ", svc.Namespace, svc.Name, err)
+		klog.ErrorS(err, "Failed to update service", "namespace", svc.Namespace, "name", svc.Name)
 		return err
 	}
 
@@ -608,7 +608,7 @@ func (c *MCSController) serviceHasCrossClusterMultiClusterService(svc *corev1.Se
 	if err := c.Client.Get(context.Background(),
 		types.NamespacedName{Namespace: svc.Namespace, Name: svc.Name}, mcs); err != nil {
 		if !apierrors.IsNotFound(err) {
-			klog.Errorf("Failed to get MultiClusterService(%s/%s):%v", svc.Namespace, svc.Name, err)
+			klog.ErrorS(err, "Failed to get MultiClusterService", "namespace", svc.Namespace, "name", svc.Name)
 		}
 		return false
 	}
@@ -626,10 +626,10 @@ func (c *MCSController) clusterMapFunc() handler.MapFunc {
 			return nil
 		}
 
-		klog.V(4).Infof("Begin to sync mcs with cluster %s.", clusterName)
+		klog.V(4).InfoS("Begin to sync mcs with cluster", "cluster", clusterName)
 		mcsList := &networkingv1alpha1.MultiClusterServiceList{}
 		if err := c.Client.List(ctx, mcsList, &client.ListOptions{}); err != nil {
-			klog.Errorf("Failed to list MultiClusterService, error: %v", err)
+			klog.ErrorS(err, "Failed to list MultiClusterService")
 			return nil
 		}
 
@@ -658,7 +658,7 @@ func (c *MCSController) needSyncMultiClusterService(mcs *networkingv1alpha1.Mult
 
 	providerClusters, err := helper.GetProviderClusters(c.Client, mcs)
 	if err != nil {
-		klog.Errorf("Failed to get provider clusters by MultiClusterService(%s/%s):%v", mcs.Namespace, mcs.Name, err)
+		klog.ErrorS(err, "Failed to get provider clusters by MultiClusterService", "namespace", mcs.Namespace, "name", mcs.Name)
 		return false, err
 	}
 	if providerClusters.Has(clusterName) {
@@ -667,7 +667,7 @@ func (c *MCSController) needSyncMultiClusterService(mcs *networkingv1alpha1.Mult
 
 	consumerClusters, err := helper.GetConsumerClusters(c.Client, mcs)
 	if err != nil {
-		klog.Errorf("Failed to get consumer clusters by MultiClusterService(%s/%s):%v", mcs.Namespace, mcs.Name, err)
+		klog.ErrorS(err, "Failed to get consumer clusters by MultiClusterService", "namespace", mcs.Namespace, "name", mcs.Name)
 		return false, err
 	}
 	if consumerClusters.Has(clusterName) {

pkg/controllers/status/cluster_status_controller.go

@@ -627,7 +627,8 @@ func getNodeAvailable(allocatable corev1.ResourceList, podResources *util.Resour
 	// When too many pods have been created, scheduling will fail so that the allocating pods number may be huge.
 	// If allowedPodNumber is less than or equal to 0, we don't allow more pods to be created.
 	if allowedPodNumber <= 0 {
-		klog.Warning("The number of schedulable Pods on the node is less than or equal to 0, we won't add the node to cluster resource models.")
+		klog.InfoS("The number of schedulable Pods on the node is less than or equal to 0, " +
+			"we won't add the node to cluster resource models.")
 		return nil
 	}
 

pkg/util/testing/helpers.go

@@ -21,7 +21,9 @@ import (
 	"crypto/rsa"
 	"crypto/x509"
 	"encoding/pem"
+	"fmt"
 	"math/big"
+	"net"
 	"time"
 )
 
@@ -69,3 +71,37 @@ func GenerateTestCACertificate() (string, string, error) {
 
 	return string(certPEMData), string(privKeyPEMData), nil
 }
+
+// GetFreePorts attempts to find n available TCP ports on the specified host. It
+// returns a slice of allocated port numbers or an error if it fails to acquire
+// them.
+func GetFreePorts(host string, n int) ([]int, error) {
+	ports := make([]int, 0, n)
+	listeners := make([]net.Listener, 0, n)
+
+	// Make sure we close all listeners if there's an error.
+	defer func() {
+		for _, l := range listeners {
+			l.Close()
+		}
+	}()
+
+	for i := 0; i < n; i++ {
+		listener, err := net.Listen("tcp", fmt.Sprintf("%s:0", host))
+		if err != nil {
+			return nil, err
+		}
+		listeners = append(listeners, listener)
+		tcpAddr, ok := listener.Addr().(*net.TCPAddr)
+		if !ok {
+			return nil, fmt.Errorf("listener address is not a *net.TCPAddr")
+		}
+		ports = append(ports, tcpAddr.Port)
+	}
+
+	// At this point we have all ports, so we can close the listeners.
+	for _, l := range listeners {
+		l.Close()
+	}
+	return ports, nil
+}