services:
  ddns-updater:
    environment:
      USER_UID: "${SZ_USER_UID}"
      USER_GID: "${SZ_USER_GID}"
    # user: "${SZ_USER_UID}"

    # environment:
    #   - CONFIG=
    #   - PERIOD=5m
    #   - UPDATE_COOLDOWN_PERIOD=5m
    #   - PUBLICIP_FETCHERS=all
    #   - PUBLICIP_HTTP_PROVIDERS=all
    #   - PUBLICIPV4_HTTP_PROVIDERS=all
    #   - PUBLICIPV6_HTTP_PROVIDERS=all
    #   - PUBLICIP_DNS_PROVIDERS=all
    #   - PUBLICIP_DNS_TIMEOUT=3s
    #   - HTTP_TIMEOUT=10s

    #   # Web UI
    #   - LISTENING_ADDRESS=:8000
    #   - ROOT_URL=/

    #   # Backup
    #   - BACKUP_PERIOD=0 # 0 to disable
    #   - BACKUP_DIRECTORY=/updater/data

    #   # Other
    #   - LOG_LEVEL=info
    #   - LOG_CALLER=hidden
    #   - SHOUTRRR_ADDRESSES=
    # restart: always

    volumes:
    #- dummy:/updater/data:ro
    - type: bind
      source: ${ROOT_FOLDER_HOST}/user-config/${APP_ID}/config.json
      target: /updater/data/config.json
      read_only: true