version: "2.2" services: gateway: environment: GATEWAY_ADDRESS: "${COLLECTOR_VPN_ADDRESS:-10.8.3.1}/${COLLECTOR_VPN_PREFIX:-24}" ports: - "${COLLECTOR_VPN_PORT:-4567}:4567/udp" volumes: - ./vpn-public.conf:/srv/public.conf:ro - ./vpn-private.conf:/srv/private.conf:ro