name: syncthing

services:
  syncthing:
    image: syncthing/syncthing:${SYNCTHING_VERSION:-2.1.3}
    restart: unless-stopped
    hostname: ${SYNCTHING_DEVICE_NAME:-fossary}
    ports:
      # The web interface stays local; publish it through a reverse proxy.
      - "127.0.0.1:${SYNCTHING_GUI_PORT:-8384}:8384"
      # The sync ports must be reachable by other devices directly.
      - "${SYNCTHING_SYNC_PORT:-22000}:22000/tcp"
      - "${SYNCTHING_SYNC_PORT:-22000}:22000/udp"
      - "${SYNCTHING_DISCOVERY_PORT:-21027}:21027/udp"
    environment:
      TZ: ${TZ:-UTC}
      PUID: ${SYNCTHING_UID:-1000}
      PGID: ${SYNCTHING_GID:-1000}
    volumes:
      - syncthing-config:/var/syncthing
      - ${SYNCTHING_DATA_LOCATION:-./data}:/data
    security_opt:
      - no-new-privileges:true
    stop_grace_period: 30s

volumes:
  syncthing-config:
    name: ${SYNCTHING_CONFIG_VOLUME:-syncthing-config}