feat: disable external traefik

apps-root-config/applications/cluster-critical-apps.yaml

@@ -41,4 +41,4 @@ applications:
   opnsense: {}
   promtail: {}
   traefik: {}
-  traefik-external: {}
+#  traefik-external: {}

docs/traefik.md

@@ -6,12 +6,17 @@ Issue with only one service `api@internal` with will mess up the WebUI: The web
 services and routes.
 
 
-https://github.com/traefik/traefik-helm-chart/blob/master/EXAMPLES.md
+## Second ingress controller for external access
 
+As alternative to a second traefik controller, the NGINX ingress controller could be used:
 
-https://doc.traefik.io/traefik/routing/providers/kubernetes-crd/#kind-tlsoption
+There are two option: ingress nginx controller (community) and nginx ingress controller (from nginx).
+I go for the latter as it seems more active at the moment.
 
-https://doc.traefik.io/traefik/routing/routers/
 
-https://doc.traefik.io/traefik/https/acme/#using-letsencrypt-with-kubernetes
+## References
 
+- https://github.com/traefik/traefik-helm-chart/blob/master/EXAMPLES.md
+- https://doc.traefik.io/traefik/routing/providers/kubernetes-crd/#kind-tlsoption
+- https://doc.traefik.io/traefik/routing/routers/
+- https://doc.traefik.io/traefik/https/acme/#using-letsencrypt-with-kubernetes