fix(lb): honor lb owner node annotation

pkg/kloudlb/speaker/speaker.go

@@ -147,6 +147,10 @@ func (s *Speaker) sync(ctx context.Context, key string) error {
 		s.stopLeading(key, vip)
 		return nil
 	}
+	if owner := serviceOwnerNode(svc); owner != "" && owner != s.nodeName {
+		s.stopLeading(key, vip)
+		return nil
+	}
 
 	leaseName := leaseNameFor(key)
 	leader, err := s.acquireLease(ctx, leaseName, vip)
@@ -161,6 +165,13 @@ func (s *Speaker) sync(ctx context.Context, key string) error {
 	return s.ensureVIP(vip)
 }
 
+func serviceOwnerNode(svc *corev1.Service) string {
+	if svc == nil || svc.Annotations == nil {
+		return ""
+	}
+	return strings.TrimSpace(svc.Annotations[kloudlb.AnnotationNode])
+}
+
 func serviceExternalVIP(svc *corev1.Service) string {
 	if svc.Annotations != nil {
 		if vip := strings.TrimSpace(svc.Annotations[kloudlb.AnnotationVIP]); vip != "" {