skip interpret health of resources without a hook

Signed-off-by: Amir Alavi <[email protected]>

pkg/controllers/status/work_status_controller.go

@@ -21,6 +21,7 @@ import (
 	"fmt"
 	"reflect"
 
+	"github.com/karmada-io/karmada/pkg/apis/config/v1alpha1"
 	corev1 "k8s.io/api/core/v1"
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/api/meta"
@@ -365,20 +366,7 @@ func (c *WorkStatusController) reflectStatus(ctx context.Context, work *workv1al
 	}
 	c.EventRecorder.Eventf(work, corev1.EventTypeNormal, events.EventReasonReflectStatusSucceed, "Reflect status for object(%s/%s/%s) succeed.", clusterObj.GetKind(), clusterObj.GetNamespace(), clusterObj.GetName())
 
-	var resourceHealth workv1alpha1.ResourceHealth
-	// When an unregistered resource kind is requested with the ResourceInterpreter,
-	// the interpreter will return an error, we treat its health status as Unknown.
-	healthy, err := c.ResourceInterpreter.InterpretHealth(clusterObj)
-	if err != nil {
-		resourceHealth = workv1alpha1.ResourceUnknown
-		c.EventRecorder.Eventf(work, corev1.EventTypeWarning, events.EventReasonInterpretHealthFailed, "Interpret health of object(%s/%s/%s) failed, err: %s.", clusterObj.GetKind(), clusterObj.GetNamespace(), clusterObj.GetName(), err.Error())
-	} else if healthy {
-		resourceHealth = workv1alpha1.ResourceHealthy
-		c.EventRecorder.Eventf(work, corev1.EventTypeNormal, events.EventReasonInterpretHealthSucceed, "Interpret health of object(%s/%s/%s) as healthy.", clusterObj.GetKind(), clusterObj.GetNamespace(), clusterObj.GetName())
-	} else {
-		resourceHealth = workv1alpha1.ResourceUnhealthy
-		c.EventRecorder.Eventf(work, corev1.EventTypeNormal, events.EventReasonInterpretHealthSucceed, "Interpret health of object(%s/%s/%s) as unhealthy.", clusterObj.GetKind(), clusterObj.GetNamespace(), clusterObj.GetName())
-	}
+	resourceHealth := c.interpretHealth(clusterObj, work)
 
 	identifier, err := c.buildStatusIdentifier(work, clusterObj)
 	if err != nil {
@@ -400,6 +388,30 @@ func (c *WorkStatusController) reflectStatus(ctx context.Context, work *workv1al
 	})
 }
 
+func (c *WorkStatusController) interpretHealth(clusterObj *unstructured.Unstructured, work *workv1alpha1.Work) workv1alpha1.ResourceHealth {
+	// For kind that doesn't have health check, we treat it as healthy.
+	healthy := true
+	var err error
+	if c.ResourceInterpreter.HookEnabled(clusterObj.GroupVersionKind(), v1alpha1.InterpreterOperationInterpretHealth) {
+		healthy, err = c.ResourceInterpreter.InterpretHealth(clusterObj)
+	} else {
+		klog.V(5).Infof("skipping health status of objects: %v %s/%s.", clusterObj.GroupVersionKind(), clusterObj.GetNamespace(), clusterObj.GetName())
+	}
+
+	var resourceHealth workv1alpha1.ResourceHealth
+	if err != nil {
+		resourceHealth = workv1alpha1.ResourceUnknown
+		c.EventRecorder.Eventf(work, corev1.EventTypeWarning, events.EventReasonInterpretHealthFailed, "Interpret health of object(%s/%s/%s) failed, err: %s.", clusterObj.GetKind(), clusterObj.GetNamespace(), clusterObj.GetName(), err.Error())
+	} else if healthy {
+		resourceHealth = workv1alpha1.ResourceHealthy
+		c.EventRecorder.Eventf(work, corev1.EventTypeNormal, events.EventReasonInterpretHealthSucceed, "Interpret health of object(%s/%s/%s) as healthy.", clusterObj.GetKind(), clusterObj.GetNamespace(), clusterObj.GetName())
+	} else {
+		resourceHealth = workv1alpha1.ResourceUnhealthy
+		c.EventRecorder.Eventf(work, corev1.EventTypeNormal, events.EventReasonInterpretHealthSucceed, "Interpret health of object(%s/%s/%s) as unhealthy.", clusterObj.GetKind(), clusterObj.GetNamespace(), clusterObj.GetName())
+	}
+	return resourceHealth
+}
+
 func (c *WorkStatusController) buildStatusIdentifier(work *workv1alpha1.Work, clusterObj *unstructured.Unstructured) (*workv1alpha1.ResourceIdentifier, error) {
 	manifestRef := helper.ManifestReference{APIVersion: clusterObj.GetAPIVersion(), Kind: clusterObj.GetKind(),
 		Namespace: clusterObj.GetNamespace(), Name: clusterObj.GetName()}

pkg/controllers/status/work_status_controller_test.go

@@ -25,22 +25,26 @@ import (
 
 	"github.com/stretchr/testify/assert"
 	corev1 "k8s.io/api/core/v1"
+	rbacv1 "k8s.io/api/rbac/v1"
 	"k8s.io/apimachinery/pkg/api/meta"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/types"
+	"k8s.io/apimachinery/pkg/util/uuid"
 	dynamicfake "k8s.io/client-go/dynamic/fake"
 	"k8s.io/client-go/kubernetes/scheme"
 	"k8s.io/client-go/tools/record"
 	"k8s.io/utils/ptr"
 	controllerruntime "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/client/fake"
 
 	clusterv1alpha1 "github.com/karmada-io/karmada/pkg/apis/cluster/v1alpha1"
 	workv1alpha1 "github.com/karmada-io/karmada/pkg/apis/work/v1alpha1"
 	workv1alpha2 "github.com/karmada-io/karmada/pkg/apis/work/v1alpha2"
+	"github.com/karmada-io/karmada/pkg/events"
 	"github.com/karmada-io/karmada/pkg/resourceinterpreter/default/native"
 	"github.com/karmada-io/karmada/pkg/sharedcli/ratelimiterflag"
 	"github.com/karmada-io/karmada/pkg/util"
@@ -723,6 +727,9 @@ func newWorkStatusController(cluster *clusterv1alpha1.Cluster, dynamicClientSets
 			m.Add(corev1.SchemeGroupVersion.WithKind("Pod"), meta.RESTScopeNamespace)
 			return m
 		}(),
+		ResourceInterpreter: FakeResourceInterpreter{
+			DefaultInterpreter: native.NewDefaultInterpreter(),
+		},
 	}
 
 	if len(dynamicClientSets) > 0 {
@@ -1021,3 +1028,46 @@ func TestWorkStatusController_registerInformersAndStart(t *testing.T) {
 		assert.NotEmpty(t, err)
 	})
 }
+
+func TestWorkStatusController_interpretHealth(t *testing.T) {
+	tests := []struct {
+		name                   string
+		clusterObj             client.Object
+		expectedResourceHealth workv1alpha1.ResourceHealth
+		expectedEventReason    string
+	}{
+		{
+			name:                   "deployment without status is interpreted as unhealthy",
+			clusterObj:             testhelper.NewDeployment("foo", "bar"),
+			expectedResourceHealth: workv1alpha1.ResourceUnhealthy,
+			expectedEventReason:    events.EventReasonInterpretHealthSucceed,
+		},
+		{
+			name:                   "cluster role without status is interpreted as healthy",
+			clusterObj:             testhelper.NewClusterRole("foo", []rbacv1.PolicyRule{}),
+			expectedResourceHealth: workv1alpha1.ResourceHealthy,
+			expectedEventReason:    events.EventReasonInterpretHealthSucceed,
+		},
+	}
+
+	cluster := newCluster("cluster", clusterv1alpha1.ClusterConditionReady, metav1.ConditionTrue)
+	c := newWorkStatusController(cluster)
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			work := testhelper.NewWork(tt.clusterObj.GetName(), tt.clusterObj.GetNamespace(), string(uuid.NewUUID()), []byte{})
+			obj, err := helper.ToUnstructured(tt.clusterObj)
+			assert.NoError(t, err)
+
+			resourceHealth := c.interpretHealth(obj, work)
+			assert.Equalf(t, tt.expectedResourceHealth, resourceHealth, "expected resource health %v, got %v", tt.expectedResourceHealth, resourceHealth)
+
+			if tt.expectedEventReason != "" {
+				eventRecorder := c.EventRecorder.(*record.FakeRecorder)
+				assert.Equal(t, 1, len(eventRecorder.Events))
+				e := <-eventRecorder.Events
+				assert.Containsf(t, e, tt.expectedEventReason, "expected event reason %v, got %v", tt.expectedEventReason, e)
+			}
+		})
+	}
+}