composer/library/docker-traefik#7

docs/composer/library/traefik/index.md

@@ -7,6 +7,15 @@ tags:
 ---
 # Docker Traefik
 
-to be done.
+[Traefik](https://traefik.io/) is one of our most important tool. We provide this library here
+to set up all network related communication in our environments.
 
-[Traefik dashboard](http://traefik.docker.localhost:8000/dashboard/)
+A `Traefik` network is always running, if not see [here](../../../docker/l3d/index.md#traefik-network).
+
+You can define [L3D](../../../docker/l3d/index.md) projects running in 
+parallel [managed by Traefik](../../../docker/l3d/drupal.md#working-with-multiple-projects-in-parallel).
+
+See the dashboard: `http(s)://traefik.<your-root.domain>/dashboard`. Here you have a great overview of all
+routers, services and middlewares:
+
+![Traefik Dasboard](/files/screenshots/traefik_dashboard_screenshot.png)