refactor(gateway): make node name explicitly configurable in spec

api/v1alpha1/apigateway_types.go

@@ -38,6 +38,10 @@ type ControlPlaneSpec struct {
 }
 
 type EnvoySpec struct {
+	// NodeName - identifies the Envoy cluster within the current namespace
+	// if not set, the name of the APIGateway resource will be used
+	// The primary use case is to make the assignment of multiple supabase instances in a single namespace explicit.
+	NodeName string `json:"nodeName,omitempty"`
 	// ControlPlane - configure the control plane where Envoy will retrieve its configuration from
 	ControlPlane *ControlPlaneSpec `json:"controlPlane"`
 	// WorkloadTemplate - customize the Envoy deployment

internal/controller/apigateway_controller.go

@@ -191,7 +191,7 @@ func (r *APIGatewayReconciler) reconcileEnvoyConfig(
 			Port uint16
 		}
 
-		instance := fmt.Sprintf("%s:%s", gateway.Name, gateway.Namespace)
+		instance := fmt.Sprintf("%s:%s", gateway.Spec.Envoy.NodeName, gateway.Namespace)
 
 		tmplData := struct {
 			Node         nodeSpec

internal/webhook/v1alpha1/apigateway_webhook_defaulter.go

@@ -69,6 +69,10 @@ func (d *APIGatewayCustomDefaulter) Default(ctx context.Context, obj runtime.Obj
 		apiGateway.Spec.Envoy = new(supabasev1alpha1.EnvoySpec)
 	}
 
+	if apiGateway.Spec.Envoy.NodeName == "" {
+		apiGateway.Spec.Envoy.NodeName = apiGateway.Name
+	}
+
 	if apiGateway.Spec.Envoy.ControlPlane == nil {
 		if d.CurrentNamespace == defaultManagerNamespace {
 			d.Recorder.Event(