Add 'docker-compose.yml'

docker-compose.yml

@@ -0,0 +1,12 @@
+version: "3"
+services:
+  watchtower:
+    container_name: watchtower
+    image: containrrr/watchtower
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+      - /etc/timezone:/etc/timezone:ro
+    command: watchtower portainer
+    environment:
+      - WATCHTOWER_CLEANUP=true
+      - TZ=Europe/Berlin