docker-compose.dev-python.yml

version: '2'
services:
  python:
    image: registry.gitlab.com/mycompany/myproject/python:dev
    # Without "volumns", the contents of the python subdirectory ("/code" in Dockerfile) will be added to the container.
    # If a change is made on the host machine, the container has to be rebuild before we see those changes in the container.
    # But with "volumns", any changes you make will immediately be reflected inside the container.
    volumes:
      - ./python/:/code
    # here watchmedo is a part of "watchdog" package, which rebuild (execute "mypackage/run.py") automatically if any change is made in "*.py".
    entrypoint: watchmedo auto-restart --recursive --pattern="*.py" --directory="." python mypackage/run.py
    # depends_on:
    #   - postgres
    # links:
    #   - postgres
    # environment:
    #   - POSTGRES_USER=user
    #   - POSTGRES_PASSWORD=password
    #   - POSTGRES_DB=myproject
    #   - POSTGRES_HOST=postgres

  python-tests:
    image: registry.gitlab.com/mycompany/myproject/python:dev # the same image with python -> the image will only be built once.
    volumes:
      - ./python/:/code
    # this entrypoint means that all unittest (written in pytest) will be triggered whenever there is any modification in "*.py".
    entrypoint: watchmedo auto-restart --recursive --pattern="*.py" --directory="." pytest
    # "depend_on" notices to docker-composer to build "python" service first before building "python-tests" service.
    depends_on:
      - python

  # java:
  #   image: registry.gitlab.com/mycompany/myproject/java:dev
  #   volumes:
  #     - ./java/:/usr/src/app
  #   entrypoint: sh -c 'find src/ | entr mvn clean compile exec:java --batch-mode --quiet'
  #   depends_on:
  #     - postgres
  #   links:
  #     - postgres
  #   environment:
  #     - POSTGRES_USER=user
  #     - POSTGRES_PASSWORD=password
  #     - POSTGRES_DB=myproject
  #     - POSTGRES_HOST=postgres

  # postgres:
  #   image: postgres:9.6
  #   # This hard-coded env variables can be passed from an external source in the production situation.
  #   environment:
  #     - POSTGRES_USER=user
  #     - POSTGRES_PASSWORD=password
  #     - POSTGRES_DB=myproject
  #   # map Postgres DB data to a location on your host machine
  #   volumes:
  #     - /data/aedspy/postgres:/var/lib/postgresql/data

  pgadminer:
    image: clue/adminer
    ports: 
      - "99:80"