# Watchtower – monitor + auto-update

services:
  watchtower:
    image: containrrr/watchtower:latest
    container_name: watchtower
    restart: unless-stopped
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    environment:
      - TZ=Europe/Prague
      - WATCHTOWER_MONITOR_ONLY=true
      - WATCHTOWER_CLEANUP=true
      - WATCHTOWER_SCHEDULE=0 0 4 ? * SUN
      - WATCHTOWER_NOTIFICATIONS=email
      - WATCHTOWER_NOTIFICATION_EMAIL_FROM=watchtower@example.com
      - WATCHTOWER_NOTIFICATION_EMAIL_TO=admin@example.com
      - WATCHTOWER_NOTIFICATION_EMAIL_SERVER=smtp.example.com
      - WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PORT=587
      - WATCHTOWER_NOTIFICATION_EMAIL_SERVER_USER=watchtower@example.com
      - WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PASSWORD=CHANGE_ME
      - WATCHTOWER_NOTIFICATION_EMAIL_SUBJECTTAG=Watchtower
    networks:
      - watchtower_net
    logging:
      driver: json-file
      options:
        max-size: "10m"
        max-file: "3"

networks:
  watchtower_net:
    name: watchtower_default
    driver: bridge