freeCodeCamp/docker-compose.yml

services:
  mongo:
    image: mongo
    ports:
      - '27017:27017'
  mailhog:
    restart: unless-stopped
    image: mailhog/mailhog
    ports:
      - '1025:1025'
      - '8025:8025'
  api:
    depends_on:
      - mongo
      - mailhog
    image: fcc-api
    env_file:
      - .env
    environment:
      # The api cannot connect to mongodb or mailhog via localhost from inside the
      # container, so we have to override these variables.
      - MONGOHQ_URL=mongodb://mongo:27017/freecodecamp?directConnection=true
      - MAILHOG_HOST=mailhog
    ports:
      # PORT is used by the new api, so we use the less generic API_PORT to
      # avoid conflicts.
      - '${API_PORT:-3000}:3000'
  client:
    image: fcc-client
    ports:
      # Same principle as above (avoiding conflicts)
      - '${CLIENT_PORT:-8000}:8000'