version: "3.9"

services:
  db:
    # if we're using mysql >= 8, some of sql queries aren't valid anymore, like for creating and grant an user at the same time
    image: mysql:5.7.22
    command: --default-authentication-plugin=mysql_native_password
    restart: always
    container_name: db_pyros
    environment:
      # note : as db is an image of mysql, this root password will be set on the first installation on the image, if the value is changed, it will not be updated in the database
      - "MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD:-root}"
    volumes:
      - db:/var/lib/mysql/
      - db:/var/lib/mysql-files
      - ./mysql/:/etc/mysql/
    # create network to allow images to communicate with other images within the same network 
    networks: 
      - pyros-network

  # service image of python, that let users to interact with python scripts such as pyros.
  install:
    # path to the Dockerfile of this image
    build: ..
    container_name: pyros
    # tty is the -t option in docker exec 
    tty: true
    # stdin_open is the -i option in docker exec
    stdin_open: true
    environment:
      - "WITH_DOCKER=${WITH_DOCKER:-y}"
      - "MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD:-root}"
    volumes:
      - ..:/home/pyros_user/app
    # tells which port of local machine can communicate with the docker image (host:container), host is your local machine
    ports:
      - "8000:8000"
    # starting db service before install service 
    depends_on:
      - db
    # create network to allow images to communicate with other images within the same network 
    networks: 
      - pyros-network
# declaring volumes
volumes:
  db:
    driver: local

# declaring networks
networks: 
  pyros-network:
    #bridge is the default network driver
    driver: bridge