[RayService] Skip update events without change (#811) (#825)

Skip RayService reconcile when there is no config/label/annotation change

Signed-off-by: Sihan Wang <sihanwang41@gmail.com>

ray-operator/controllers/ray/rayservice_controller.go

@@ -22,6 +22,7 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/client-go/tools/record"
 	"sigs.k8s.io/controller-runtime/pkg/manager"
+	"sigs.k8s.io/controller-runtime/pkg/predicate"
 
 	"github.com/ray-project/kuberay/ray-operator/controllers/ray/utils"
 
@@ -219,6 +220,7 @@ func (r *RayServiceReconciler) Reconcile(ctx context.Context, request ctrl.Reque
 func (r *RayServiceReconciler) SetupWithManager(mgr ctrl.Manager) error {
 	return ctrl.NewControllerManagedBy(mgr).
 		For(&rayv1alpha1.RayService{}).
+		WithEventFilter(predicate.Or(predicate.GenerationChangedPredicate{}, predicate.LabelChangedPredicate{}, predicate.AnnotationChangedPredicate{})).
 		Owns(&rayv1alpha1.RayCluster{}).
 		Owns(&corev1.Service{}).
 		Owns(&networkingv1.Ingress{}).