Add reverse-proxy configuration for existing Traefik installation

Largely based on the work of @MoryCorp in #10

reverse-proxy/README.md

@@ -16,10 +16,20 @@ If you are already running a reverse proxy, then the above will not work as it w
 
 If you already have NGINX running as a system service, use the configuration file in the `nginx` directory.
 
-Edit the file `reverse-proxy/nginx/plausible` to contain the domain name you use for your server, then copy it into NGINX's configuration folder. Enable it by creating a symlink in NGINX's enabled sites folder. Finally use Certbot to create a TLS certificate for your site.
+Edit the file `reverse-proxy/nginx/plausible` to contain the domain name you use for your server, then copy it into NGINX's configuration folder. Enable it by creating a symlink in NGINX's enabled sites folder. Finally use Certbot to create a TLS certificate for your site:
 
 ```shell
 $ sudo cp reverse-proxy/nginx/plausible /etc/nginx/sites-available
 $ sudo ln -s /etc/nginx/sites-available/plausible /etc/nginx/sites-enabled/plausible
 $ sudo certbot --nginx
 ```
+
+### Traefik 2
+
+If you already have a Traefik container running on Docker, use the docker-compose file in the `traefik` directory. Note that it assumes that your Traefik container is set up to support certificate generation.
+
+Edit the file `reverse-proxy/traefik/docker-compose.traefik.yml` to contain the domain name you use for your server, then combine it with the existing docker-compose files:
+
+```shell
+$ docker-compose -f docker-compose.yml -f reverse-proxy/traefik/docker-compose.traefik.yml up
+```

reverse-proxy/traefik/docker-compose.traefik.yml

@@ -0,0 +1,8 @@
+version: "3.3"
+services:
+  plausible:
+    labels:
+      traefik.enable: "true"
+      traefik.http.routers.plausible.rule: "Host(`example.com`)" # change to your domain name
+      traefik.http.routers.plausible.entrypoints: "websecure"
+      traefik.http.services.plausible.loadbalancer.server.port: "8000"