services:
  app:
    image: containrrr/watchtower:latest
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
    environment:
      - TZ=${WATCHTOWER_TZ}
      - WATCHTOWER_CLEANUP=true # Remove old images after updating
      - WATCHTOWER_REMOVE_VOLUMES=false # Remove attached volumes after updating
      - DOCKER_API_VERSION=1.45 # SSH docker version 1.41 for Docker engine version 20.10 - 1.43 for Docker engine version 24 - 1.45 for Docker engine version 26.1
      - WATCHTOWER_INCLUDE_RESTARTING=true # Restart containers after update
      - WATCHTOWER_INCLUDE_STOPPED=false # Update stopped containers
      - WATCHTOWER_SCHEDULE="0 0 */2 * * *" # Update & Scan containers every 2 hours
      - WATCHTOWER_LABEL_ENABLE=false
      - WATCHTOWER_ROLLING_RESTART=true
      - WATCHTOWER_TIMEOUT=30s
      - WATCHTOWER_LOG_FORMAT=pretty
    restart: unless-stopped