version: '3' services: mongo: container_name: mongo image: mongo ports: - "27017:27017" networks: - backend webexpe: container_name: sin3dlauncherinst image: sin3dlauncher restart: always volumes: - "./media:/usr/src/app/media" # get access to media files ports: - "${PORT:-8000}:8000" links: - mongo # only comment in case it will be necessary environment: WEB_PREFIX_URL: "${WEB_PREFIX_URL:-}" depends_on: - mongo networks: - backend networks: backend: