docker-compose.yml

# Version of Docker Compose config syntax
version: "3"

# Define containers here
services:

  # MongoDB container
  skrypt_db:

    # Give container a name to easily distinguish between containers
    container_name: "skrypt_db"

    # Use mongo image found in Docker Hub if not already found in local repository
    image: mongo

    # Set environment variables in container (using `.env` file)
    environment:
      - MONGO_DATA_DIR=${MONGO_DATA_DIR}
      - MONGO_LOG_DIR=${MONGO_LOG_DIR}
      # - MONGO_INITDB_DATABASE=${MONGO_INITDB_DATABASE} # Mongo will create a few databases regardless
      # - MONGO_INITDB_ROOT_USERNAME=${MONGO_INITDB_ROOT_USERNAME} # Auth is assumed when username and password are provided
      # - MONGO_INITDB_ROOT_PASSWORD=${MONGO_INITDB_ROOT_PASSWORD}

    # Mount `./data/db` directory on host to `/data/db` directory in container
    volumes:
      - db_data:/data/db

    # Use port 27017 on both host and container when connecting (port 27017 is default for MongoDB)
    ports:
      - "27017:27017"

    # Run MongoDB server with `mongod`, limit filesize for development with `--smallfiles` (not recommended for production), write log files to `/dev/null` directory with `--logpath`, and try to limit output with `--quiet` (commented out for now)
    command: mongod --smallfiles --logpath=/dev/null # --quiet

    # Restart MongoDB server if it fails
    restart: on-failure

  # Web application container
  skrypt_app:

    # Give container a name to easily distinguish between containers
    container_name: "skrypt_app"

    # Build from root of project directory where the `Dockerfile` should be
    build: .

    # Set environment variables in container (using `.env` file)
    environment:
      - NODE_ENV=${NODE_ENV}

    # Mount root of host project directory to `/skrypt` directory in container
    # NOTE: uncommenting the volumes config will force the container to use the
    #       node_modules folder on the host machine. this can cause problems if
    #       host is using a different architecture than the container
    # volumes:
    #   - .:/skrypt

    # Use port 3000 on both host and container when connecting
    ports:
      - "3000:3000"

    # Start mongo container before app container (does not wait for mongo to be up and running before starting app container)
    depends_on:
      - skrypt_db

    # Restart app if it fails
    restart: on-failure   

volumes:
  db_data: