NetLBFinalizerV3 for NEG variant of L4 RBS NetLB.

NetLBFinalizerV3 will be added to the L4 RBS NetLBs that opt-in for NEG support.

pkg/utils/common/finalizer.go

@@ -41,6 +41,8 @@ const (
 	NegFinalizerKey = "networking.gke.io/neg-finalizer"
 	// NetLBFinalizerV2 is the finalizer used by newer controllers that manage L4 External LoadBalancer services.
 	NetLBFinalizerV2 = "gke.networking.io/l4-netlb-v2"
+	// NetLBFinalizerV3 is the finalizer used by the NEG backed variant of the L4 External LoadBalancer services.
+	NetLBFinalizerV3 = "gke.networking.io/l4-netlb-v3"
 	// LoadBalancerCleanupFinalizer added by original kubernetes service controller. This is not required in L4 RBS/ILB-subsetting services.
 	LoadBalancerCleanupFinalizer = "service.kubernetes.io/load-balancer-cleanup"
 )

pkg/utils/utils.go

@@ -755,6 +755,11 @@ func HasL4NetLBFinalizerV2(svc *api_v1.Service) bool {
 	return slice.ContainsString(svc.ObjectMeta.Finalizers, common.NetLBFinalizerV2, nil)
 }
 
+// HasL4NetLBFinalizerV3 returns true if the given Service has NetLBFinalizerV3
+func HasL4NetLBFinalizerV3(svc *api_v1.Service) bool {
+	return slice.ContainsString(svc.ObjectMeta.Finalizers, common.NetLBFinalizerV3, nil)
+}
+
 func LegacyForwardingRuleName(svc *api_v1.Service) string {
 	return cloudprovider.DefaultLoadBalancerName(svc)
 }