add-ons: Install traefik API gateway

applications/add-ons/kustomization.yaml

@@ -0,0 +1,5 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - traefik-gw

applications/add-ons/traefik-gw/kustomization.yaml

@@ -0,0 +1,8 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  # Install Gateway API CRDs from the Standard channel.
+  - https://github.com/kubernetes-sigs/gateway-api/releases/download/v1.4.0/standard-install.yaml
+  # Install Traefik RBACs.
+  - https://raw.githubusercontent.com/traefik/traefik/v3.6/docs/content/reference/dynamic-configuration/kubernetes-gateway-rbac.yml

applications/kustomization.yaml

@@ -2,4 +2,5 @@ apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 
 resources:
+  - add-ons
   - services