Add Docker Compose files for Open WebUI and Watchtower services

containers/watchtower/docker-compose.yml

@@ -0,0 +1,21 @@
+services:
+  watchtower:
+    image: containrrr/watchtower
+    container_name: watchtower
+    extends:
+      file: "../base.yml"
+      service: base
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+    environment:
+      - TZ=Europe/Rome
+      - WATCHTOWER_SCHEDULE=0 0 4 * * *
+      - WATCHTOWER_CLEANUP=true
+      - WATCHTOWER_LABEL_ENABLE=true
+      - WATCHTOWER_NOTIFICATIONS=shoutrrr
+      - WATCHTOWER_NOTIFICATION_URL=telegram://${BOT_TOKEN}@telegram/?channels=${CHAT_ID}
+    labels:
+      - "com.centurylinklabs.watchtower.enable=true"
+
+volumes:
+  open-webui: