services:
  watchtower:
    image: containrrr/watchtower:latest
    restart: unless-stopped
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
    environment:
      - WATCHTOWER_CLEANUP=true
      - WATCHTOWER_INCLUDE_RESTARTING=true
      - WATCHTOWER_POLL_INTERVAL=86400
      - WATCHTOWER_MONITOR_ONLY=false
      - TZ=America/Chicago
      - DOCKER_API_VERSION=1.44
    logging:
      driver: "json-file"
      options:
        max-size: "50m"
        max-file: "3"
    deploy:
      mode: replicated
      replicas: 1
      placement:
        constraints:
          - node.hostname == hf-pdocker-01
      resources:
        limits:
          memory: 256M