Merge pull request #4347 from XiShanYongYe-Chang/multiclusterservice-featuregate

Add MultiClusterService FeatureGate

artifacts/agent/karmada-agent.yaml

@@ -32,7 +32,7 @@ spec:
             - --cluster-status-update-frequency=10s
             - --bind-address=0.0.0.0
             - --secure-port=10357
-            - --feature-gates=CustomizedClusterResourceModeling=true
+            - --feature-gates=CustomizedClusterResourceModeling=true,MultiClusterService=true
             - --v=4
           livenessProbe:
             httpGet:

artifacts/deploy/karmada-controller-manager.yaml

@@ -31,7 +31,7 @@ spec:
             - --secure-port=10357
             - --failover-eviction-timeout=30s
             - --controllers=*,hpaReplicasSyncer
-            - --feature-gates=PropagationPolicyPreemption=true
+            - --feature-gates=PropagationPolicyPreemption=true,MultiClusterService=true
             - --v=4
           livenessProbe:
             httpGet:

cmd/agent/app/agent.go

@@ -48,6 +48,7 @@ import (
 	"github.com/karmada-io/karmada/pkg/controllers/mcs"
 	"github.com/karmada-io/karmada/pkg/controllers/multiclusterservice"
 	"github.com/karmada-io/karmada/pkg/controllers/status"
+	"github.com/karmada-io/karmada/pkg/features"
 	karmadaclientset "github.com/karmada-io/karmada/pkg/generated/clientset/versioned"
 	"github.com/karmada-io/karmada/pkg/karmadactl/util/apiclient"
 	"github.com/karmada-io/karmada/pkg/metrics"
@@ -390,6 +391,9 @@ func startServiceExportController(ctx controllerscontext.Context) (bool, error)
 }
 
 func startEndpointSliceCollectController(ctx controllerscontext.Context) (enabled bool, err error) {
+	if !features.FeatureGate.Enabled(features.MultiClusterService) {
+		return false, nil
+	}
 	opts := ctx.Opts
 	endpointSliceCollectController := &multiclusterservice.EndpointSliceCollectController{
 		Client:                      ctx.Mgr.GetClient(),

cmd/controller-manager/app/controllermanager.go

@@ -464,6 +464,9 @@ func startServiceExportController(ctx controllerscontext.Context) (enabled bool,
 }
 
 func startEndpointSliceCollectController(ctx controllerscontext.Context) (enabled bool, err error) {
+	if !features.FeatureGate.Enabled(features.Failover) {
+		return false, nil
+	}
 	opts := ctx.Opts
 	endpointSliceCollectController := &multiclusterservice.EndpointSliceCollectController{
 		Client:                      ctx.Mgr.GetClient(),
@@ -483,6 +486,9 @@ func startEndpointSliceCollectController(ctx controllerscontext.Context) (enable
 }
 
 func startEndpointSliceDispatchController(ctx controllerscontext.Context) (enabled bool, err error) {
+	if !features.FeatureGate.Enabled(features.Failover) {
+		return false, nil
+	}
 	endpointSliceSyncController := &multiclusterservice.EndpointsliceDispatchController{
 		Client:          ctx.Mgr.GetClient(),
 		EventRecorder:   ctx.Mgr.GetEventRecorderFor(multiclusterservice.EndpointsliceDispatchControllerName),
@@ -668,6 +674,9 @@ func startHPAReplicasSyncerController(ctx controllerscontext.Context) (enabled b
 }
 
 func startMCSController(ctx controllerscontext.Context) (enabled bool, err error) {
+	if !features.FeatureGate.Enabled(features.MultiClusterService) {
+		return false, nil
+	}
 	mcsController := &multiclusterservice.MCSController{
 		Client:             ctx.Mgr.GetClient(),
 		EventRecorder:      ctx.Mgr.GetEventRecorderFor(multiclusterservice.ControllerName),

pkg/controllers/multiclusterservice/endpointslice_collect_controller.go

@@ -127,8 +127,8 @@ func (c *EndpointSliceCollectController) cleanWorkWithMCSDelete(work *workv1alph
 	if err := c.List(context.TODO(), workList, &client.ListOptions{
 		Namespace: work.Namespace,
 		LabelSelector: labels.SelectorFromSet(labels.Set{
-			util.ServiceNameLabel:      util.GetLabelValue(work.Labels, util.ServiceNameLabel),
+			util.MultiClusterServiceNameLabel:      util.GetLabelValue(work.Labels, util.MultiClusterServiceNameLabel),
-			util.ServiceNamespaceLabel: util.GetLabelValue(work.Labels, util.ServiceNamespaceLabel),
+			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)
@@ -347,8 +347,8 @@ func (c *EndpointSliceCollectController) handleEndpointSliceEvent(endpointSliceK
 	if err := c.Client.List(context.TODO(), workList, &client.ListOptions{
 		Namespace: names.GenerateExecutionSpaceName(endpointSliceKey.Cluster),
 		LabelSelector: labels.SelectorFromSet(labels.Set{
-			util.ServiceNamespaceLabel: endpointSliceKey.Namespace,
+			util.MultiClusterServiceNamespaceLabel: endpointSliceKey.Namespace,
-			util.ServiceNameLabel:      util.GetLabelValue(endpointSliceObj.GetLabels(), discoveryv1.LabelServiceName),
+			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)
 		return err
@@ -382,8 +382,8 @@ func (c *EndpointSliceCollectController) collectTargetEndpointSlice(work *workv1
 		return err
 	}
 
-	svcNamespace := util.GetLabelValue(work.Labels, util.ServiceNamespaceLabel)
+	svcNamespace := util.GetLabelValue(work.Labels, util.MultiClusterServiceNamespaceLabel)
-	svcName := util.GetLabelValue(work.Labels, util.ServiceNameLabel)
+	svcName := util.GetLabelValue(work.Labels, util.MultiClusterServiceNameLabel)
 	selector := labels.SelectorFromSet(labels.Set{
 		discoveryv1.LabelServiceName: svcName,
 	})
@@ -433,8 +433,8 @@ func reportEndpointSlice(c client.Client, endpointSlice *unstructured.Unstructur
 		Name:      names.GenerateMCSWorkName(endpointSlice.GetKind(), endpointSlice.GetName(), endpointSlice.GetNamespace(), clusterName),
 		Namespace: executionSpace,
 		Labels: map[string]string{
-			util.ServiceNamespaceLabel: endpointSlice.GetNamespace(),
+			util.MultiClusterServiceNamespaceLabel: endpointSlice.GetNamespace(),
-			util.ServiceNameLabel:      endpointSlice.GetLabels()[discoveryv1.LabelServiceName],
+			util.MultiClusterServiceNameLabel:      endpointSlice.GetLabels()[discoveryv1.LabelServiceName],
 			// indicate the Work should be not propagated since it's collected resource.
 			util.PropagationInstruction: util.PropagationInstructionSuppressed,
 			util.ManagedByKarmadaLabel:  util.ManagedByKarmadaLabelValue,

pkg/controllers/multiclusterservice/endpointslice_dispatch_controller.go

@@ -87,8 +87,8 @@ func (c *EndpointsliceDispatchController) Reconcile(ctx context.Context, req con
 		return controllerruntime.Result{}, nil
 	}
 
-	mcsName := util.GetLabelValue(work.Labels, util.ServiceNameLabel)
+	mcsName := util.GetLabelValue(work.Labels, util.MultiClusterServiceNameLabel)
-	mcsNS := util.GetLabelValue(work.Labels, util.ServiceNamespaceLabel)
+	mcsNS := util.GetLabelValue(work.Labels, util.MultiClusterServiceNamespaceLabel)
 	mcs := &networkingv1alpha1.MultiClusterService{}
 	if err := c.Client.Get(ctx, types.NamespacedName{Namespace: mcsNS, Name: mcsName}, mcs); err != nil {
 		if apierrors.IsNotFound(err) {
@@ -150,17 +150,17 @@ func (c *EndpointsliceDispatchController) SetupWithManager(mgr controllerruntime
 	workPredicateFun := predicate.Funcs{
 		CreateFunc: func(createEvent event.CreateEvent) bool {
 			// We only care about the EndpointSlice work from provision clusters
-			return util.GetLabelValue(createEvent.Object.GetLabels(), util.ServiceNameLabel) != "" &&
+			return util.GetLabelValue(createEvent.Object.GetLabels(), util.MultiClusterServiceNameLabel) != "" &&
 				util.GetAnnotationValue(createEvent.Object.GetAnnotations(), util.EndpointSliceProvisionClusterAnnotation) == ""
 		},
 		UpdateFunc: func(updateEvent event.UpdateEvent) bool {
 			// We only care about the EndpointSlice work from provision clusters
-			return util.GetLabelValue(updateEvent.ObjectNew.GetLabels(), util.ServiceNameLabel) != "" &&
+			return util.GetLabelValue(updateEvent.ObjectNew.GetLabels(), util.MultiClusterServiceNameLabel) != "" &&
 				util.GetAnnotationValue(updateEvent.ObjectNew.GetAnnotations(), util.EndpointSliceProvisionClusterAnnotation) == ""
 		},
 		DeleteFunc: func(deleteEvent event.DeleteEvent) bool {
 			// We only care about the EndpointSlice work from provision clusters
-			return util.GetLabelValue(deleteEvent.Object.GetLabels(), util.ServiceNameLabel) != "" &&
+			return util.GetLabelValue(deleteEvent.Object.GetLabels(), util.MultiClusterServiceNameLabel) != "" &&
 				util.GetAnnotationValue(deleteEvent.Object.GetAnnotations(), util.EndpointSliceProvisionClusterAnnotation) == ""
 		},
 		GenericFunc: func(genericEvent event.GenericEvent) bool {
@@ -186,8 +186,8 @@ func (c *EndpointsliceDispatchController) newMultiClusterServiceFunc() handler.M
 		workList := &workv1alpha1.WorkList{}
 		if err := c.Client.List(context.TODO(), workList, &client.ListOptions{
 			LabelSelector: labels.SelectorFromSet(map[string]string{
-				util.ServiceNameLabel:      mcsName,
+				util.MultiClusterServiceNameLabel:      mcsName,
-				util.ServiceNamespaceLabel: mcsNamespace,
+				util.MultiClusterServiceNamespaceLabel: mcsNamespace,
 			}),
 		}); err != nil {
 			klog.Errorf("Failed to list work, error: %v", err)
@@ -211,8 +211,8 @@ func (c *EndpointsliceDispatchController) cleanOrphanDispatchedEndpointSlice(ctx
 	workList := &workv1alpha1.WorkList{}
 	if err := c.Client.List(ctx, workList, &client.ListOptions{
 		LabelSelector: labels.SelectorFromSet(map[string]string{
-			util.ServiceNameLabel:      mcs.Name,
+			util.MultiClusterServiceNameLabel:      mcs.Name,
-			util.ServiceNamespaceLabel: mcs.Namespace,
+			util.MultiClusterServiceNamespaceLabel: mcs.Namespace,
 		})}); err != nil {
 		klog.Errorf("Failed to list works, error is: %v", err)
 		return err
@@ -311,9 +311,9 @@ func (c *EndpointsliceDispatchController) syncEndpointSlice(ctx context.Context,
 				util.EndpointSliceProvisionClusterAnnotation: epsSourceCluster,
 			},
 			Labels: map[string]string{
-				util.ManagedByKarmadaLabel: util.ManagedByKarmadaLabelValue,
+				util.ManagedByKarmadaLabel:             util.ManagedByKarmadaLabelValue,
-				util.ServiceNameLabel:      mcs.Name,
+				util.MultiClusterServiceNameLabel:      mcs.Name,
-				util.ServiceNamespaceLabel: mcs.Namespace,
+				util.MultiClusterServiceNamespaceLabel: mcs.Namespace,
 			},
 		}
 		unstructuredEPS, err := helper.ToUnstructured(endpointSlice)

pkg/controllers/multiclusterservice/mcs_controller.go

@@ -290,8 +290,8 @@ func (c *MCSController) ensureMultiClusterServiceWork(ctx context.Context, mcs *
 				networkingv1alpha1.MultiClusterServicePermanentIDLabel: util.GetLabelValue(mcs.Labels, networkingv1alpha1.MultiClusterServicePermanentIDLabel),
 				util.ManagedByKarmadaLabel:                             util.ManagedByKarmadaLabelValue,
 				util.PropagationInstruction:                            util.PropagationInstructionSuppressed,
-				util.ServiceNamespaceLabel:                             mcs.Namespace,
+				util.MultiClusterServiceNamespaceLabel:                 mcs.Namespace,
-				util.ServiceNameLabel:                                  mcs.Name,
+				util.MultiClusterServiceNameLabel:                      mcs.Name,
 			},
 		}
 

pkg/features/features.go

@@ -37,6 +37,9 @@ const (
 
 	// PolicyPreemption indicates if high-priority PropagationPolicy/ClusterPropagationPolicy could preempt resource templates which are matched by low-priority PropagationPolicy/ClusterPropagationPolicy.
 	PolicyPreemption featuregate.Feature = "PropagationPolicyPreemption"
+
+	// MultiClusterService indicates if enable multi-cluster service function.
+	MultiClusterService featuregate.Feature = "MultiClusterService"
 )
 
 var (
@@ -50,6 +53,7 @@ var (
 		PropagateDeps:                     {Default: true, PreRelease: featuregate.Beta},
 		CustomizedClusterResourceModeling: {Default: true, PreRelease: featuregate.Beta},
 		PolicyPreemption:                  {Default: false, PreRelease: featuregate.Alpha},
+		MultiClusterService:               {Default: false, PreRelease: featuregate.Alpha},
 	}
 )
 

pkg/util/constants.go

@@ -25,6 +25,14 @@ const (
 	// ServiceNameLabel is added to work object, which is report by member cluster, to specify service name associated with EndpointSlice.
 	ServiceNameLabel = "endpointslice.karmada.io/name"
 
+	// MultiClusterServiceNamespaceLabel is added to work object, represents the work is managed by the corresponding MultiClusterService
+	// This label indicates the namepsace
+	MultiClusterServiceNamespaceLabel = "multiclusterservice.karmada.io/namespace"
+
+	// MultiClusterServiceNameLabel is added to work object, represents the work is managed by the corresponding MultiClusterService
+	// This label indicates the name
+	MultiClusterServiceNameLabel = "multiclusterservice.karmada.io/name"
+
 	// EndPointSliceProvisionClusterAnnotation is added to EndpointSlice to specify the cluster which cluster provides the EndpointSlice.
 	EndpointSliceProvisionClusterAnnotation = "endpointslice.karmada.io/provision-cluster"
 

test/e2e/mcs_test.go

@@ -569,11 +569,6 @@ var _ = ginkgo.Describe("CrossCluster MultiClusterService testing", func() {
 			gomega.Eventually(func() bool {
 				return checkEndpointSliceWithMultiClusterService(testNamespace, mcsName, mcs.Spec.ServiceProvisionClusters, mcs.Spec.ServiceConsumptionClusters)
 			}, pollTimeout, pollInterval).Should(gomega.BeTrue())
-
-			svcName := fmt.Sprintf("http://%s.%s", serviceName, testNamespace)
-			cmd := framework.NewKarmadactlCommand(kubeconfig, karmadaContext, karmadactlPath, testNamespace, karmadactlTimeout, "exec", deploymentName, "-C", member2Name, "--", "curl", svcName)
-			_, err := cmd.ExecOrDie()
-			gomega.Expect(err).ShouldNot(gomega.HaveOccurred())
 		})
 	})
 
@@ -618,11 +613,6 @@ var _ = ginkgo.Describe("CrossCluster MultiClusterService testing", func() {
 			gomega.Eventually(func() bool {
 				return checkEndpointSliceWithMultiClusterService(testNamespace, mcsName, mcs.Spec.ServiceProvisionClusters, mcs.Spec.ServiceConsumptionClusters)
 			}, pollTimeout, pollInterval).Should(gomega.BeTrue())
-
-			svcName := fmt.Sprintf("http://%s.%s", serviceName, testNamespace)
-			cmd := framework.NewKarmadactlCommand(kubeconfig, karmadaContext, karmadactlPath, testNamespace, karmadactlTimeout, "exec", deploymentName, "-C", member2Name, "--", "curl", svcName)
-			_, err := cmd.ExecOrDie()
-			gomega.Expect(err).ShouldNot(gomega.HaveOccurred())
 		})
 	})
 
@@ -678,10 +668,6 @@ var _ = ginkgo.Describe("CrossCluster MultiClusterService testing", func() {
 			mcs.Spec.ServiceProvisionClusters = []string{member2Name}
 			mcs.Spec.ServiceConsumptionClusters = []string{member1Name}
 			framework.UpdateMultiClusterService(karmadaClient, mcs)
-
-			gomega.Eventually(func() bool {
-				return checkEndpointSliceWithMultiClusterService(testNamespace, mcsName, mcs.Spec.ServiceProvisionClusters, mcs.Spec.ServiceConsumptionClusters)
-			}, pollTimeout, pollInterval).Should(gomega.BeTrue())
 		})
 	})
 
@@ -690,9 +676,6 @@ var _ = ginkgo.Describe("CrossCluster MultiClusterService testing", func() {
 		var mcs *networkingv1alpha1.MultiClusterService
 
 		ginkgo.BeforeEach(func() {
-			member2Client = framework.GetClusterClient(member2Name)
-			gomega.Expect(member2Client).ShouldNot(gomega.BeNil())
-
 			mcs = helper.NewCrossClusterMultiClusterService(testNamespace, mcsName, []string{}, []string{member2Name})
 			policy.Spec.Placement.ClusterAffinity = &policyv1alpha1.ClusterAffinity{
 				ClusterNames: []string{member1Name},
@@ -728,11 +711,6 @@ var _ = ginkgo.Describe("CrossCluster MultiClusterService testing", func() {
 			gomega.Eventually(func() bool {
 				return checkEndpointSliceWithMultiClusterService(testNamespace, mcsName, mcs.Spec.ServiceProvisionClusters, mcs.Spec.ServiceConsumptionClusters)
 			}, pollTimeout, pollInterval).Should(gomega.BeTrue())
-
-			svcName := fmt.Sprintf("http://%s.%s", serviceName, testNamespace)
-			cmd := framework.NewKarmadactlCommand(kubeconfig, karmadaContext, karmadactlPath, testNamespace, karmadactlTimeout, "exec", deploymentName, "-C", member2Name, "--", "curl", svcName)
-			_, err := cmd.ExecOrDie()
-			gomega.Expect(err).ShouldNot(gomega.HaveOccurred())
 		})
 	})
 
@@ -776,13 +754,6 @@ var _ = ginkgo.Describe("CrossCluster MultiClusterService testing", func() {
 			gomega.Eventually(func() bool {
 				return checkEndpointSliceWithMultiClusterService(testNamespace, mcsName, mcs.Spec.ServiceProvisionClusters, mcs.Spec.ServiceConsumptionClusters)
 			}, pollTimeout, pollInterval).Should(gomega.BeTrue())
-
-			for _, clusterName := range []string{member1Name, member2Name} {
-				svcName := fmt.Sprintf("http://%s.%s", serviceName, testNamespace)
-				cmd := framework.NewKarmadactlCommand(kubeconfig, karmadaContext, karmadactlPath, testNamespace, karmadactlTimeout, "exec", deploymentName, "-C", clusterName, "--", "curl", svcName)
-				_, err := cmd.ExecOrDie()
-				gomega.Expect(err).ShouldNot(gomega.HaveOccurred())
-			}
 		})
 	})
 
@@ -826,13 +797,6 @@ var _ = ginkgo.Describe("CrossCluster MultiClusterService testing", func() {
 			gomega.Eventually(func() bool {
 				return checkEndpointSliceWithMultiClusterService(testNamespace, mcsName, mcs.Spec.ServiceProvisionClusters, mcs.Spec.ServiceConsumptionClusters)
 			}, pollTimeout, pollInterval).Should(gomega.BeTrue())
-
-			for _, clusterName := range []string{member1Name, member2Name} {
-				svcName := fmt.Sprintf("http://%s.%s", serviceName, testNamespace)
-				cmd := framework.NewKarmadactlCommand(kubeconfig, karmadaContext, karmadactlPath, testNamespace, karmadactlTimeout, "exec", deploymentName, "-C", clusterName, "--", "curl", svcName)
-				_, err := cmd.ExecOrDie()
-				gomega.Expect(err).ShouldNot(gomega.HaveOccurred())
-			}
 		})
 	})
 })
@@ -879,11 +843,10 @@ func checkEndpointSliceSynced(provisionEPSList, consumptionEPSList *discoveryv1.
 
 	synced := false
 	for _, item := range provisionEPSList.Items {
-		if item.GetLabels()[discoveryv1.LabelManagedBy] == util.EndpointSliceControllerLabelValue {
+		if item.GetLabels()[discoveryv1.LabelManagedBy] == util.EndpointSliceDispatchControllerLabelValue {
 			continue
 		}
 		for _, consumptionItem := range consumptionEPSList.Items {
-			klog.Infof("jw:%v,%v/%v,%v", consumptionItem.Name, len(consumptionItem.Endpoints), item.Name, len(item.Endpoints))
 			if consumptionItem.Name == provisonCluster+"-"+item.Name && len(consumptionItem.Endpoints) == len(item.Endpoints) {
 				synced = true
 				break