add discoverGVK for workloadspread (#795)

Signed-off-by: veophi <[email protected]>

pkg/controller/workloadspread/workloadspread_controller.go

@@ -45,6 +45,7 @@ import (
 	appsv1alpha1 "github.com/openkruise/kruise/apis/apps/v1alpha1"
 	"github.com/openkruise/kruise/pkg/util"
 	"github.com/openkruise/kruise/pkg/util/controllerfinder"
+	utildiscovery "github.com/openkruise/kruise/pkg/util/discovery"
 	"github.com/openkruise/kruise/pkg/util/fieldindex"
 	"github.com/openkruise/kruise/pkg/util/ratelimiter"
 	"github.com/openkruise/kruise/pkg/util/requeueduration"
@@ -74,6 +75,7 @@ const (
 )
 
 var (
+	controllerKruiseKindWS = appsv1alpha1.SchemeGroupVersion.WithKind("WorkloadSpread")
 	controllerKruiseKindCS = appsv1alpha1.SchemeGroupVersion.WithKind("CloneSet")
 	controllerKindRS       = appsv1.SchemeGroupVersion.WithKind("ReplicaSet")
 	controllerKindDep      = appsv1.SchemeGroupVersion.WithKind("Deployment")
@@ -86,6 +88,9 @@ var durationStore = requeueduration.DurationStore{}
 // Add creates a new WorkloadSpread Controller and adds it to the Manager with default RBAC. The Manager will set fields on the Controller
 // and Start it when the Manager is Started.
 func Add(mgr manager.Manager) error {
+	if !utildiscovery.DiscoverGVK(controllerKruiseKindWS) {
+		return nil
+	}
 	return add(mgr, newReconciler(mgr))
 }