Update Gateway API to use new resources (#201)

We dont want to promote the use of the "old" resources with NB prefix so
the Gateway API integration should only support the new ones.

---------

Signed-off-by: Philip Laine <philip.laine@gmail.com>

cmd/main.go

@@ -334,14 +334,12 @@ func main() {
 			if err = (&controller.HTTPRouteReconciler{
 				Client:  mgr.GetClient(),
 				Netbird: nbClient,
-				ClusterDNS: clusterDNS,
 			}).SetupWithManager(mgr); err != nil {
 				setupLog.Error(err, "unable to create controller", "controller", "HTTPRoute")
 				os.Exit(1)
 			}
 			if err = (&controller.TCPRouteReconciler{
 				Client: mgr.GetClient(),
-				ClusterDNS: clusterDNS,
 			}).SetupWithManager(mgr); err != nil {
 				setupLog.Error(err, "unable to create controller", "controller", "TCPRoute")
 				os.Exit(1)

examples/gateway-api/gateway.yaml

@@ -1,9 +1,25 @@
-apiVersion: netbird.io/v1
+apiVersion: netbird.io/v1alpha1
-kind: NBRoutingPeer
+kind: NetworkRouter
 metadata:
   name: netbird
   namespace: netbird
-spec: {}
+spec:
+  dnsZoneRef:
+    name: cluster.local
+---
+apiVersion: gateway.networking.k8s.io/v1
+kind: GatewayClass
+metadata:
+  name: netbird-public
+spec:
+  controllerName: "gateway.netbird.io/controller"
+---
+apiVersion: gateway.networking.k8s.io/v1
+kind: GatewayClass
+metadata:
+  name: netbird-private
+spec:
+  controllerName: "gateway.netbird.io/controller"
 ---
 apiVersion: gateway.networking.k8s.io/v1
 kind: Gateway
@@ -13,7 +29,7 @@ metadata:
 spec:
   gatewayClassName: netbird-private
   listeners:
-  - protocol: gateway.netbird.io/NBRoutingPeer
+  - protocol: gateway.netbird.io/NetworkRouter
     name: netbird
     port: 1
 ---
@@ -25,6 +41,6 @@ metadata:
 spec:
   gatewayClassName: netbird-public
   listeners:
-  - protocol: gateway.netbird.io/NBRoutingPeer
+  - protocol: gateway.netbird.io/NetworkRouter
     name: netbird
     port: 1

internal/controller/gateway_controller.go

@@ -19,11 +19,10 @@ package controller
 import (
 	"context"
 	"fmt"
-	"slices"
 	"time"
 
-	netbird "github.com/netbirdio/netbird/shared/management/client/rest"
+	"github.com/fluxcd/pkg/runtime/conditions"
-	corev1 "k8s.io/api/core/v1"
+	"github.com/fluxcd/pkg/runtime/patch"
 	"k8s.io/apimachinery/pkg/api/meta"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/types"
@@ -32,24 +31,21 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
 	gatewayv1 "sigs.k8s.io/gateway-api/apis/v1"
 
-	netbirdiov1 "github.com/netbirdio/kubernetes-operator/api/v1"
+	nbv1alpha1 "github.com/netbirdio/kubernetes-operator/api/v1alpha1"
 	"github.com/netbirdio/kubernetes-operator/internal/gatewayutil"
 )
 
-const (
-	GatewayFinalizer = "gateway.netbird.io/gateway"
-)
-
 type GatewayReconciler struct {
 	client.Client
 }
 
 func (r *GatewayReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
-	gw := gatewayv1.Gateway{}
+	gw := &gatewayv1.Gateway{}
-	err := r.Get(ctx, req.NamespacedName, &gw)
+	err := r.Get(ctx, req.NamespacedName, gw)
 	if err != nil {
 		return ctrl.Result{}, client.IgnoreNotFound(err)
 	}
+	sp := patch.NewSerialPatcher(gw, r.Client)
 
 	// Check if referenced class belongs to this controller.
 	gwc := &gatewayv1.GatewayClass{}
@@ -69,11 +65,11 @@ func (r *GatewayReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ct
 
 	// Handle resource deletion.
 	if !gw.DeletionTimestamp.IsZero() {
-		return r.reconcileDelete(ctx, gw)
+		return r.reconcileDelete(ctx, sp, gw)
 	}
 
 	// Verify Gateway configuration.
-	routingPeerName, err := gatewayutil.GetRoutingPeerName(gw.Spec.Listeners)
+	routingPeerName, err := gatewayutil.GetNetworkRouterName(gw.Spec.Listeners)
 	if err != nil {
 		cond := metav1.Condition{
 			Type:    string(gatewayv1.GatewayConditionAccepted),
@@ -81,57 +77,43 @@ func (r *GatewayReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ct
 			Reason:  string(gatewayv1.GatewayReasonInvalidParameters),
 			Message: err.Error(),
 		}
-		if meta.SetStatusCondition(&gw.Status.Conditions, cond) {
+		meta.SetStatusCondition(&gw.Status.Conditions, cond)
-			err = r.Status().Update(ctx, &gw)
+		err = sp.Patch(ctx, gw)
 		if err != nil {
 			return ctrl.Result{}, err
 		}
-		}
 		return ctrl.Result{}, nil
 	}
-
 	cond := metav1.Condition{
 		Type:   string(gatewayv1.GatewayConditionAccepted),
 		Status: metav1.ConditionTrue,
 		Reason: string(gatewayv1.GatewayReasonAccepted),
 	}
-	if meta.SetStatusCondition(&gw.Status.Conditions, cond) {
+	meta.SetStatusCondition(&gw.Status.Conditions, cond)
-		err = r.Status().Update(ctx, &gw)
+	controllerutil.AddFinalizer(gw, nbv1alpha1.NetbirdFinalizer)
+	err = sp.Patch(ctx, gw)
 	if err != nil {
 		return ctrl.Result{}, err
 	}
-		return ctrl.Result{}, nil
-	}
-	if controllerutil.AddFinalizer(&gw, GatewayFinalizer) {
-		err = r.Client.Update(ctx, &gw)
-		if err != nil {
-			return ctrl.Result{}, err
-		}
-	}
 
 	// Ensure routing peer is ready.
-	// TODO (phillebaba): Should watch routing peer instead of retrying when not found.
+	netRouter, err := gatewayutil.GetGatewayNetworkRouter(ctx, r.Client, gw)
-	nbrp, err := gatewayutil.GetGatewayRoutingPeer(ctx, r.Client, gw)
 	if err != nil {
 		return ctrl.Result{}, err
 	}
-	idx := slices.IndexFunc(nbrp.Status.Conditions, func(cond netbirdiov1.NBCondition) bool {
+	if !conditions.Has(netRouter, nbv1alpha1.ReadyCondition) {
-		return cond.Type == netbirdiov1.NBSetupKeyReady
+		// TODO (phillebaba): Should watch routing peer instead of retrying when not found.
-	})
-	if idx == -1 || nbrp.Status.Conditions[idx].Status != corev1.ConditionStatus(metav1.ConditionTrue) {
 		cond := metav1.Condition{
 			Type:    string(gatewayv1.GatewayConditionProgrammed),
 			Status:  metav1.ConditionFalse,
 			Reason:  string(gatewayv1.GatewayReasonProgrammed),
 			Message: fmt.Sprintf("NBRoutingPeer %s is not ready", routingPeerName),
 		}
-		if meta.SetStatusCondition(&gw.Status.Conditions, cond) {
+		meta.SetStatusCondition(&gw.Status.Conditions, cond)
-			err = r.Status().Update(ctx, &gw)
+		err = sp.Patch(ctx, gw)
 		if err != nil {
 			return ctrl.Result{}, err
 		}
-			return ctrl.Result{}, nil
-		}
 		return ctrl.Result{RequeueAfter: 5 * time.Second}, nil
 	}
 
@@ -141,18 +123,15 @@ func (r *GatewayReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ct
 		Status: metav1.ConditionTrue,
 		Reason: string(gatewayv1.GatewayReasonProgrammed),
 	}
-	if meta.SetStatusCondition(&gw.Status.Conditions, cond) {
+	meta.SetStatusCondition(&gw.Status.Conditions, cond)
-		err = r.Status().Update(ctx, &gw)
+	err = sp.Patch(ctx, gw)
 	if err != nil {
 		return ctrl.Result{}, err
 	}
 	return ctrl.Result{}, nil
 }
 
-	return ctrl.Result{}, nil
+func (r *GatewayReconciler) reconcileDelete(ctx context.Context, sp *patch.SerialPatcher, gw *gatewayv1.Gateway) (ctrl.Result, error) {
-}
-
-func (r *GatewayReconciler) reconcileDelete(ctx context.Context, gw gatewayv1.Gateway) (ctrl.Result, error) {
 	var httpRouteList gatewayv1.HTTPRouteList
 	err := r.Client.List(ctx, &httpRouteList)
 	if err != nil {
@@ -179,16 +158,14 @@ func (r *GatewayReconciler) reconcileDelete(ctx context.Context, gw gatewayv1.Ga
 		}
 	}
 
-	if controllerutil.RemoveFinalizer(&gw, GatewayFinalizer) {
+	controllerutil.RemoveFinalizer(gw, nbv1alpha1.NetbirdFinalizer)
-		err := r.Client.Update(ctx, &gw)
+	err = sp.Patch(ctx, gw)
-		if err != nil && !netbird.IsNotFound(err) {
+	if err != nil {
 		return ctrl.Result{}, err
 	}
-	}
 	return ctrl.Result{}, nil
 }
 
-// SetupWithManager sets up the controller with the Manager.
 func (r *GatewayReconciler) SetupWithManager(mgr ctrl.Manager) error {
 	return ctrl.NewControllerManagedBy(mgr).
 		For(&gatewayv1.Gateway{}).

internal/controller/gatewayclass_controller.go

@@ -4,6 +4,8 @@ import (
 	"context"
 	"time"
 
+	"github.com/fluxcd/pkg/runtime/patch"
+	nbv1alpha1 "github.com/netbirdio/kubernetes-operator/api/v1alpha1"
 	"k8s.io/apimachinery/pkg/api/meta"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	ctrl "sigs.k8s.io/controller-runtime"
@@ -13,7 +15,6 @@ import (
 )
 
 const (
-	GatewayClassFinalizer = "gateway.netbird.io/gatewayclass"
 	GatewayControllerName = "gateway.netbird.io/controller"
 )
 
@@ -22,11 +23,12 @@ type GatewayClassReconciler struct {
 }
 
 func (r *GatewayClassReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
-	gwc := gatewayv1.GatewayClass{}
+	gwc := &gatewayv1.GatewayClass{}
-	err := r.Client.Get(ctx, req.NamespacedName, &gwc)
+	err := r.Client.Get(ctx, req.NamespacedName, gwc)
 	if err != nil {
 		return ctrl.Result{}, client.IgnoreNotFound(err)
 	}
+	sp := patch.NewSerialPatcher(gwc, r.Client)
 
 	// Controller name does not match.
 	if gwc.Spec.ControllerName != GatewayControllerName {
@@ -35,7 +37,7 @@ func (r *GatewayClassReconciler) Reconcile(ctx context.Context, req ctrl.Request
 
 	// Gateway class is being deleted.
 	if !gwc.GetDeletionTimestamp().IsZero() {
-		return r.reconcileDelete(ctx, gwc)
+		return r.reconcileDelete(ctx, sp, gwc)
 	}
 
 	// Validate configuration.
@@ -55,24 +57,16 @@ func (r *GatewayClassReconciler) Reconcile(ctx context.Context, req ctrl.Request
 			Reason:  string(gatewayv1.GatewayClassReasonInvalidParameters),
 			Message: message,
 		}
-		if meta.SetStatusCondition(&gwc.Status.Conditions, cond) {
+		meta.SetStatusCondition(&gwc.Status.Conditions, cond)
-			err = r.Client.Status().Update(ctx, &gwc)
+		err := sp.Patch(ctx, gwc)
 		if err != nil {
 			return ctrl.Result{}, err
 		}
 		return ctrl.Result{}, nil
 	}
-	}
-
-	// Add finalizer to validate deletion.
-	if controllerutil.AddFinalizer(&gwc, GatewayClassFinalizer) {
-		err = r.Client.Update(ctx, &gwc)
-		if err != nil {
-			return ctrl.Result{}, err
-		}
-	}
 
 	// Set condition to accepted.
+	controllerutil.AddFinalizer(gwc, nbv1alpha1.NetbirdFinalizer)
 	cond := metav1.Condition{
 		Type:    string(gatewayv1.GatewayClassConditionStatusAccepted),
 		Status:  metav1.ConditionTrue,
@@ -80,15 +74,14 @@ func (r *GatewayClassReconciler) Reconcile(ctx context.Context, req ctrl.Request
 		Message: "Reconciled by Netbird Operator.",
 	}
 	meta.SetStatusCondition(&gwc.Status.Conditions, cond)
-	err = r.Client.Status().Update(ctx, &gwc)
+	err = sp.Patch(ctx, gwc)
 	if err != nil {
 		return ctrl.Result{}, err
 	}
-
 	return ctrl.Result{}, nil
 }
 
-func (r *GatewayClassReconciler) reconcileDelete(ctx context.Context, gwc gatewayv1.GatewayClass) (ctrl.Result, error) {
+func (r *GatewayClassReconciler) reconcileDelete(ctx context.Context, sp *patch.SerialPatcher, gwc *gatewayv1.GatewayClass) (ctrl.Result, error) {
 	var gatewayList gatewayv1.GatewayList
 	err := r.Client.List(ctx, &gatewayList)
 	if err != nil {
@@ -99,12 +92,12 @@ func (r *GatewayClassReconciler) reconcileDelete(ctx context.Context, gwc gatewa
 			return ctrl.Result{RequeueAfter: 5 * time.Second}, nil
 		}
 	}
-	if controllerutil.RemoveFinalizer(&gwc, GatewayClassFinalizer) {
+
-		err = r.Client.Update(ctx, &gwc)
+	controllerutil.RemoveFinalizer(gwc, nbv1alpha1.NetbirdFinalizer)
+	err = sp.Patch(ctx, gwc)
 	if err != nil {
 		return ctrl.Result{}, err
 	}
-	}
 	return ctrl.Result{}, nil
 }
 

internal/controller/httproute_controller.go

@@ -2,9 +2,10 @@ package controller
 
 import (
 	"context"
-	"fmt"
 	"time"
 
+	"github.com/fluxcd/pkg/runtime/conditions"
+	"github.com/fluxcd/pkg/runtime/patch"
 	netbird "github.com/netbirdio/netbird/shared/management/client/rest"
 	"github.com/netbirdio/netbird/shared/management/http/api"
 	corev1 "k8s.io/api/core/v1"
@@ -16,9 +17,11 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
 	gatewayv1 "sigs.k8s.io/gateway-api/apis/v1"
 
-	netbirdiov1 "github.com/netbirdio/kubernetes-operator/api/v1"
+	nbv1alpha1 "github.com/netbirdio/kubernetes-operator/api/v1alpha1"
 	"github.com/netbirdio/kubernetes-operator/internal/gatewayutil"
+	"github.com/netbirdio/kubernetes-operator/internal/ssautil"
 	"github.com/netbirdio/kubernetes-operator/internal/util"
+	nbv1alpha1ac "github.com/netbirdio/kubernetes-operator/pkg/applyconfigurations/api/v1alpha1"
 )
 
 const (
@@ -29,21 +32,21 @@ type HTTPRouteReconciler struct {
 	client.Client
 
 	Netbird *netbird.Client
-	ClusterDNS string
 }
 
 // nolint:gocyclo
 func (r *HTTPRouteReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
 	logger := ctrl.Log.WithName("HTTPRoute").WithValues("namespace", req.Namespace, "name", req.Name)
 
-	hr := gatewayv1.HTTPRoute{}
+	hr := &gatewayv1.HTTPRoute{}
-	err := r.Get(ctx, req.NamespacedName, &hr)
+	err := r.Get(ctx, req.NamespacedName, hr)
 	if err != nil {
 		return ctrl.Result{}, client.IgnoreNotFound(err)
 	}
+	sp := patch.NewSerialPatcher(hr, r.Client)
 
 	if !hr.DeletionTimestamp.IsZero() {
-		return r.reconcileDelete(ctx, hr)
+		return r.reconcileDelete(ctx, sp, hr)
 	}
 
 	for _, parent := range hr.Spec.ParentRefs {
@@ -58,17 +61,16 @@ func (r *HTTPRouteReconciler) Reconcile(ctx context.Context, req ctrl.Request) (
 			logger.Info("gateway is not ready", "name", gw.ObjectMeta.Name)
 			continue
 		}
-		nbrp, err := gatewayutil.GetGatewayRoutingPeer(ctx, r.Client, *gw)
+		netRouter, err := gatewayutil.GetGatewayNetworkRouter(ctx, r.Client, gw)
 		if err != nil {
 			return ctrl.Result{}, err
 		}
 
-		if controllerutil.AddFinalizer(&hr, HTTPRouteFinalizer) {
+		controllerutil.AddFinalizer(hr, nbv1alpha1.NetbirdFinalizer)
-			err = r.Client.Update(ctx, &hr)
+		err = sp.Patch(ctx, hr)
 		if err != nil {
 			return ctrl.Result{}, err
 		}
-		}
 
 		// Create network resources.
 		svcIdx := map[string]corev1.Service{}
@@ -85,29 +87,23 @@ func (r *HTTPRouteReconciler) Reconcile(ctx context.Context, req ctrl.Request) (
 		}
 
 		for _, svc := range svcIdx {
-			nbResource := netbirdiov1.NBResource{
+			controllerRef, err := ssautil.ControllerReference(&svc, r.Scheme())
-				ObjectMeta: metav1.ObjectMeta{
-					Name:      svc.Name,
-					Namespace: svc.Namespace,
-				},
-			}
-			_, err := controllerutil.CreateOrUpdate(ctx, r.Client, &nbResource, func() error {
-				err = controllerutil.SetControllerReference(&svc, &nbResource, r.Scheme(), controllerutil.WithBlockOwnerDeletion(false))
 			if err != nil {
-					return err
+				return ctrl.Result{}, err
 			}
-				err = controllerutil.SetOwnerReference(&hr, &nbResource, r.Scheme())
+			controllerRef = controllerRef.WithBlockOwnerDeletion(false)
+			ownerRef, err := ssautil.OwnerReference(hr, r.Scheme())
 			if err != nil {
-					return err
+				return ctrl.Result{}, err
 			}
-				nbResource.Spec = netbirdiov1.NBResourceSpec{
+			netResourceAC := nbv1alpha1ac.NetworkResource(svc.Name, svc.Namespace).
-					Name:      svc.Name,
+				WithOwnerReferences(controllerRef, ownerRef).
-					NetworkID: *nbrp.Status.NetworkID,
+				WithSpec(
-					Address:   fmt.Sprintf("%s.%s.%s", svc.Name, svc.Namespace, r.ClusterDNS),
+					nbv1alpha1ac.NetworkResourceSpec().
-					Groups:    []string{},
+						WithNetworkRouterRef(nbv1alpha1ac.CrossNamespaceReference().WithName(netRouter.Name).WithNamespace(netRouter.Namespace)).
-				}
+						WithServiceRef(corev1.LocalObjectReference{Name: svc.Name}),
-				return nil
+				)
-			})
+			err = r.Client.Apply(ctx, netResourceAC)
 			if err != nil {
 				return ctrl.Result{}, err
 			}
@@ -115,29 +111,26 @@ func (r *HTTPRouteReconciler) Reconcile(ctx context.Context, req ctrl.Request) (
 
 		targets := []api.ServiceTarget{}
 		for _, svc := range svcIdx {
-			var nbResource netbirdiov1.NBResource
+			netResource := &nbv1alpha1.NetworkResource{
-			err := r.Client.Get(ctx, client.ObjectKeyFromObject(&svc), &nbResource)
+				ObjectMeta: metav1.ObjectMeta{
+					Name:      svc.Name,
+					Namespace: svc.Namespace,
+				},
+			}
+			err := r.Client.Get(ctx, client.ObjectKeyFromObject(netResource), netResource)
 			if err != nil {
 				return ctrl.Result{}, err
 			}
-			ready := func() bool {
+			if !conditions.Has(netResource, nbv1alpha1.ReadyCondition) {
-				for _, cond := range nbResource.Status.Conditions {
-					if cond.Type == netbirdiov1.NBSetupKeyReady && cond.Status == corev1.ConditionTrue {
-						return true
-					}
-				}
-				return false
-			}()
-			if !ready {
 				return ctrl.Result{RequeueAfter: 1 * time.Second}, nil
 			}
 
 			target := api.ServiceTarget{
 				Enabled:    true,
 				Path:       nil,
-				TargetId:   *nbResource.Status.NetworkResourceID,
+				TargetId:   netResource.Status.ResourceID,
-				Protocol:   "http",
+				Protocol:   api.ServiceTargetProtocolHttp,
-				TargetType: "domain",
+				TargetType: api.ServiceTargetTargetTypeHost,
 			}
 			targets = append(targets, target)
 		}
@@ -148,10 +141,11 @@ func (r *HTTPRouteReconciler) Reconcile(ctx context.Context, req ctrl.Request) (
 			return ctrl.Result{}, err
 		}
 		for _, hostname := range hr.Spec.Hostnames {
-			proxyReq := api.PostApiReverseProxiesServicesJSONRequestBody{
+			proxyReq := api.ServiceRequest{
 				Domain:           string(hostname),
 				Enabled:          true,
 				Name:             string(hostname),
+				Mode:             util.Ptr(api.ServiceRequestModeHttp),
 				PassHostHeader:   util.Ptr(false),
 				RewriteRedirects: util.Ptr(false),
 				Targets:          &targets,
@@ -182,7 +176,7 @@ func (r *HTTPRouteReconciler) Reconcile(ctx context.Context, req ctrl.Request) (
 	return ctrl.Result{}, nil
 }
 
-func (r *HTTPRouteReconciler) reconcileDelete(ctx context.Context, hr gatewayv1.HTTPRoute) (ctrl.Result, error) {
+func (r *HTTPRouteReconciler) reconcileDelete(ctx context.Context, sp *patch.SerialPatcher, hr *gatewayv1.HTTPRoute) (ctrl.Result, error) {
 	// Index all proxy services.
 	proxyServices, err := r.Netbird.ReverseProxyServices.List(ctx)
 	if err != nil {
@@ -219,24 +213,29 @@ func (r *HTTPRouteReconciler) reconcileDelete(ctx context.Context, hr gatewayv1.
 			}
 		}
 		for _, svc := range svcIdx {
-			var nbResource netbirdiov1.NBResource
+			netResource := &nbv1alpha1.NetworkResource{
-			err = r.Client.Get(ctx, client.ObjectKeyFromObject(&svc), &nbResource)
+				ObjectMeta: metav1.ObjectMeta{
+					Name:      svc.Name,
+					Namespace: svc.Namespace,
+				},
+			}
+			err = r.Client.Get(ctx, client.ObjectKeyFromObject(netResource), netResource)
 			if err != nil {
 				return ctrl.Result{}, err
 			}
-			err = controllerutil.RemoveOwnerReference(&hr, &nbResource, r.Scheme())
+			err = controllerutil.RemoveOwnerReference(hr, netResource, r.Scheme())
 			if err != nil {
 				return ctrl.Result{}, err
 			}
 
-			if len(nbResource.OwnerReferences) > 1 {
+			if len(netResource.OwnerReferences) > 1 {
-				err = r.Client.Update(ctx, &nbResource)
+				err = r.Client.Update(ctx, netResource)
 				if err != nil {
 					return ctrl.Result{}, err
 				}
 			} else {
 				// TODO: Precondition that nothing has changed.
-				err := r.Client.Delete(ctx, &nbResource)
+				err := r.Client.Delete(ctx, netResource)
 				if err != nil {
 					return ctrl.Result{}, err
 				}
@@ -256,12 +255,11 @@ func (r *HTTPRouteReconciler) reconcileDelete(ctx context.Context, hr gatewayv1.
 		}
 	}
 
-	if controllerutil.RemoveFinalizer(&hr, HTTPRouteFinalizer) {
+	controllerutil.RemoveFinalizer(hr, nbv1alpha1.NetbirdFinalizer)
-		err := r.Client.Update(ctx, &hr)
+	err = sp.Patch(ctx, hr)
 	if err != nil {
 		return ctrl.Result{}, err
 	}
-	}
 	return ctrl.Result{}, nil
 }
 

internal/controller/networkrouter_controller.go

@@ -55,7 +55,7 @@ func (r *NetworkRouterReconciler) Reconcile(ctx context.Context, req ctrl.Reques
 		return r.reconcileDelete(ctx, sp, netRouter)
 	}
 
-	ownerRef, err := ssautil.OwnerReference(netRouter, r.Scheme())
+	ownerRef, err := ssautil.ControllerReference(netRouter, r.Scheme())
 	if err != nil {
 		return ctrl.Result{}, err
 	}

internal/controller/setupkey_controller.go

@@ -41,7 +41,7 @@ func (r *SetupKeyReconciler) Reconcile(ctx context.Context, req ctrl.Request) (c
 	if err != nil {
 		return ctrl.Result{}, client.IgnoreNotFound(err)
 	}
-	owner, err := ssautil.OwnerReference(setupKey, r.Client.Scheme())
+	owner, err := ssautil.ControllerReference(setupKey, r.Client.Scheme())
 	if err != nil {
 		return ctrl.Result{}, err
 	}

internal/controller/tcproute_controller.go

@@ -2,7 +2,6 @@ package controller
 
 import (
 	"context"
-	"fmt"
 
 	corev1 "k8s.io/api/core/v1"
 	kerrors "k8s.io/apimachinery/pkg/api/errors"
@@ -14,32 +13,30 @@ import (
 	gatewayv1 "sigs.k8s.io/gateway-api/apis/v1"
 	gatewayv1alpha2 "sigs.k8s.io/gateway-api/apis/v1alpha2"
 
-	netbirdiov1 "github.com/netbirdio/kubernetes-operator/api/v1"
+	"github.com/fluxcd/pkg/runtime/patch"
+	nbv1alpha1 "github.com/netbirdio/kubernetes-operator/api/v1alpha1"
 	"github.com/netbirdio/kubernetes-operator/internal/gatewayutil"
-)
+	"github.com/netbirdio/kubernetes-operator/internal/ssautil"
-
+	nbv1alpha1ac "github.com/netbirdio/kubernetes-operator/pkg/applyconfigurations/api/v1alpha1"
-const (
-	TCPRouteFinalizer = "gateway.netbird.io/tcproute"
 )
 
 type TCPRouteReconciler struct {
 	client.Client
-
-	ClusterDNS string
 }
 
 // nolint:gocyclo
 func (r *TCPRouteReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
 	logger := ctrl.Log.WithName("TCPRoute").WithValues("namespace", req.Namespace, "name", req.Name)
 
-	tr := gatewayv1alpha2.TCPRoute{}
+	tr := &gatewayv1alpha2.TCPRoute{}
-	err := r.Get(ctx, req.NamespacedName, &tr)
+	err := r.Get(ctx, req.NamespacedName, tr)
 	if err != nil {
 		return ctrl.Result{}, client.IgnoreNotFound(err)
 	}
+	sp := patch.NewSerialPatcher(tr, r.Client)
 
 	if !tr.DeletionTimestamp.IsZero() {
-		return r.reconcileDelete(ctx, tr)
+		return r.reconcileDelete(ctx, sp, tr)
 	}
 
 	for _, parent := range tr.Spec.ParentRefs {
@@ -54,17 +51,16 @@ func (r *TCPRouteReconciler) Reconcile(ctx context.Context, req ctrl.Request) (c
 			logger.Info("gateway is not ready", "name", gw.ObjectMeta.Name)
 			continue
 		}
-		nbrp, err := gatewayutil.GetGatewayRoutingPeer(ctx, r.Client, *gw)
+		netRouter, err := gatewayutil.GetGatewayNetworkRouter(ctx, r.Client, gw)
 		if err != nil {
 			return ctrl.Result{}, err
 		}
 
-		if controllerutil.AddFinalizer(&tr, TCPRouteFinalizer) {
+		controllerutil.AddFinalizer(tr, nbv1alpha1.NetbirdFinalizer)
-			err = r.Client.Update(ctx, &tr)
+		err = sp.Patch(ctx, tr)
 		if err != nil {
 			return ctrl.Result{}, err
 		}
-		}
 
 		// Create network resources.
 		svcIdx := map[string]corev1.Service{}
@@ -81,29 +77,23 @@ func (r *TCPRouteReconciler) Reconcile(ctx context.Context, req ctrl.Request) (c
 		}
 
 		for _, svc := range svcIdx {
-			nbResource := netbirdiov1.NBResource{
+			controllerRef, err := ssautil.ControllerReference(&svc, r.Scheme())
-				ObjectMeta: metav1.ObjectMeta{
-					Name:      svc.Name,
-					Namespace: svc.Namespace,
-				},
-			}
-			_, err := controllerutil.CreateOrUpdate(ctx, r.Client, &nbResource, func() error {
-				err = controllerutil.SetControllerReference(&svc, &nbResource, r.Scheme(), controllerutil.WithBlockOwnerDeletion(false))
 			if err != nil {
-					return err
+				return ctrl.Result{}, err
 			}
-				err = controllerutil.SetOwnerReference(&tr, &nbResource, r.Scheme())
+			controllerRef = controllerRef.WithBlockOwnerDeletion(false)
+			ownerRef, err := ssautil.OwnerReference(tr, r.Scheme())
 			if err != nil {
-					return err
+				return ctrl.Result{}, err
 			}
-				nbResource.Spec = netbirdiov1.NBResourceSpec{
+			netResourceAC := nbv1alpha1ac.NetworkResource(svc.Name, svc.Namespace).
-					Name:      svc.Name,
+				WithOwnerReferences(controllerRef, ownerRef).
-					NetworkID: *nbrp.Status.NetworkID,
+				WithSpec(
-					Address:   fmt.Sprintf("%s.%s.%s", svc.Name, svc.Namespace, r.ClusterDNS),
+					nbv1alpha1ac.NetworkResourceSpec().
-					Groups:    []string{},
+						WithNetworkRouterRef(nbv1alpha1ac.CrossNamespaceReference().WithName(netRouter.Name).WithNamespace(netRouter.Namespace)).
-				}
+						WithServiceRef(corev1.LocalObjectReference{Name: svc.Name}),
-				return nil
+				)
-			})
+			err = r.Client.Apply(ctx, netResourceAC)
 			if err != nil {
 				return ctrl.Result{}, err
 			}
@@ -112,7 +102,7 @@ func (r *TCPRouteReconciler) Reconcile(ctx context.Context, req ctrl.Request) (c
 	return ctrl.Result{}, nil
 }
 
-func (r *TCPRouteReconciler) reconcileDelete(ctx context.Context, tr gatewayv1alpha2.TCPRoute) (ctrl.Result, error) {
+func (r *TCPRouteReconciler) reconcileDelete(ctx context.Context, sp *patch.SerialPatcher, tr *gatewayv1alpha2.TCPRoute) (ctrl.Result, error) {
 	for _, parent := range tr.Spec.ParentRefs {
 		gw, err := gatewayutil.GetParentGateway(ctx, r.Client, parent, tr.Namespace, GatewayControllerName)
 		if err != nil {
@@ -139,24 +129,29 @@ func (r *TCPRouteReconciler) reconcileDelete(ctx context.Context, tr gatewayv1al
 			}
 		}
 		for _, svc := range svcIdx {
-			var nbResource netbirdiov1.NBResource
+			netResource := &nbv1alpha1.NetworkResource{
-			err = r.Client.Get(ctx, client.ObjectKeyFromObject(&svc), &nbResource)
+				ObjectMeta: metav1.ObjectMeta{
+					Name:      svc.Name,
+					Namespace: svc.Namespace,
+				},
+			}
+			err = r.Client.Get(ctx, client.ObjectKeyFromObject(netResource), netResource)
 			if err != nil {
 				return ctrl.Result{}, err
 			}
-			err = controllerutil.RemoveOwnerReference(&tr, &nbResource, r.Scheme())
+			err = controllerutil.RemoveOwnerReference(tr, netResource, r.Scheme())
 			if err != nil {
 				return ctrl.Result{}, err
 			}
 
-			if len(nbResource.OwnerReferences) > 1 {
+			if len(netResource.OwnerReferences) > 1 {
-				err = r.Client.Update(ctx, &nbResource)
+				err = r.Client.Update(ctx, netResource)
 				if err != nil {
 					return ctrl.Result{}, err
 				}
 			} else {
 				// TODO: Precondition that nothing has changed.
-				err := r.Client.Delete(ctx, &nbResource)
+				err := r.Client.Delete(ctx, netResource)
 				if err != nil {
 					return ctrl.Result{}, err
 				}
@@ -164,12 +159,11 @@ func (r *TCPRouteReconciler) reconcileDelete(ctx context.Context, tr gatewayv1al
 		}
 	}
 
-	if controllerutil.RemoveFinalizer(&tr, TCPRouteFinalizer) {
+	controllerutil.RemoveFinalizer(tr, nbv1alpha1.NetbirdFinalizer)
-		err := r.Client.Update(ctx, &tr)
+	err := sp.Patch(ctx, tr)
 	if err != nil {
 		return ctrl.Result{}, err
 	}
-	}
 	return ctrl.Result{}, nil
 }
 

internal/gatewayutil/gatewayutil.go

@@ -10,7 +10,7 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	gwv1 "sigs.k8s.io/gateway-api/apis/v1"
 
-	netbirdiov1 "github.com/netbirdio/kubernetes-operator/api/v1"
+	nbv1alpha1 "github.com/netbirdio/kubernetes-operator/api/v1alpha1"
 )
 
 func GetParentGateway(ctx context.Context, k8sClient client.Client, parent gwv1.ParentReference, namespace, controllerName string) (*gwv1.Gateway, error) {
@@ -36,29 +36,29 @@ func GetParentGateway(ctx context.Context, k8sClient client.Client, parent gwv1.
 	return gw, nil
 }
 
-func GetGatewayRoutingPeer(ctx context.Context, k8sClient client.Client, gw gwv1.Gateway) (*netbirdiov1.NBRoutingPeer, error) {
+func GetGatewayNetworkRouter(ctx context.Context, k8sClient client.Client, gw *gwv1.Gateway) (*nbv1alpha1.NetworkRouter, error) {
-	routingPeerName, err := GetRoutingPeerName(gw.Spec.Listeners)
+	netRouterName, err := GetNetworkRouterName(gw.Spec.Listeners)
 	if err != nil {
 		return nil, err
 	}
-	nbrp := &netbirdiov1.NBRoutingPeer{}
+	netRouter := &nbv1alpha1.NetworkRouter{}
-	err = k8sClient.Get(ctx, types.NamespacedName{Namespace: gw.Namespace, Name: routingPeerName}, nbrp)
+	err = k8sClient.Get(ctx, types.NamespacedName{Namespace: gw.Namespace, Name: netRouterName}, netRouter)
 	if err != nil {
 		return nil, err
 	}
-	return nbrp, nil
+	return netRouter, nil
 }
 
-func GetRoutingPeerName(listeners []gwv1.Listener) (string, error) {
+func GetNetworkRouterName(listeners []gwv1.Listener) (string, error) {
 	if len(listeners) > 1 {
 		return "", errors.New("netbird Gateway only supports a single listener")
 	}
 	group, kind, ok := strings.Cut(string(listeners[0].Protocol), "/")
 	if !ok {
-		return "", fmt.Errorf("invalid protocol %s, expected gateway.netbird.io/NBRoutingPeer", listeners[0].Protocol)
+		return "", fmt.Errorf("invalid protocol %s, expected gateway.netbird.io/NetworkRouter", listeners[0].Protocol)
 	}
-	if group != "gateway.netbird.io" || kind != "NBRoutingPeer" {
+	if group != "gateway.netbird.io" || kind != "NetworkRouter" {
-		return "", fmt.Errorf("invalid group %s and kind %s, expected gateway.netbird.io/NBRoutingPeer", group, kind)
+		return "", fmt.Errorf("invalid group %s and kind %s, expected gateway.netbird.io/NetworkRouter", group, kind)
 	}
 	return string(listeners[0].Name), nil
 }

internal/ssautil/ssautil.go

@@ -7,7 +7,7 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/client/apiutil"
 )
 
-func OwnerReference(owner client.Object, scheme *runtime.Scheme) (*metav1ac.OwnerReferenceApplyConfiguration, error) {
+func ControllerReference(owner client.Object, scheme *runtime.Scheme) (*metav1ac.OwnerReferenceApplyConfiguration, error) {
 	gvk, err := apiutil.GVKForObject(owner, scheme)
 	if err != nil {
 		return nil, err
@@ -20,3 +20,17 @@ func OwnerReference(owner client.Object, scheme *runtime.Scheme) (*metav1ac.Owne
 		WithController(true).
 		WithBlockOwnerDeletion(true), nil
 }
+
+func OwnerReference(owner client.Object, scheme *runtime.Scheme) (*metav1ac.OwnerReferenceApplyConfiguration, error) {
+	gvk, err := apiutil.GVKForObject(owner, scheme)
+	if err != nil {
+		return nil, err
+	}
+	return metav1ac.OwnerReference().
+		WithAPIVersion(gvk.GroupVersion().String()).
+		WithKind(gvk.Kind).
+		WithName(owner.GetName()).
+		WithUID(owner.GetUID()).
+		WithController(false).
+		WithBlockOwnerDeletion(false), nil
+}