docker-compose.yml

version: "3.2"
services:
  # Create a composed Django-Postgres-NGINX instance
  db:
    # a custom image for django
    build: ./postgres

    # Set db environment
    environment:
      # these passwords will be taken from .env file (not tracked in GIT)
      PGPASSWORD: ${POSTGRES_PASSWORD}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
      IMAGE_USER: ${IMAGE_USER}
      IMAGE_PASSWORD: ${IMAGE_PASSWORD}
      CRYOWEB_INSERT_ONLY_PW: ${CRYOWEB_INSERT_ONLY_PW}

    # to export volume, as recommeded in https://registry.hub.docker.com/u/library/mysql/
    volumes:
      - type: bind
        source: ./postgres-data/
        target: /var/lib/postgresql/data

      # all scripts and sql file inside this directory will be executed after database initialization
      - type: bind
        source: ./postgres/docker-entrypoint-initdb.d/
        target: /docker-entrypoint-initdb.d/

    ports:
      - "25432:5432"


  redis:
    # a custom redis image
    build: ./redis

    volumes:
      - type: volume
        source: redis-data
        target: /data


  uwsgi:
    # a custom image for django
    build: ./uwsgi

    # You can pass multiple environment variables from an external file through
    # to a service’s containers with the ‘env_file’ option
    env_file:
      - .env

    # exec a different command from image
    command: uwsgi --ini /var/uwsgi/image_uwsgi.ini --memory-report

    # set working dir for uwsgi
    working_dir: /var/uwsgi/image/

    # define volumes
    volumes:
      - type: bind
        source: ./django-data/
        target: /var/uwsgi/

      - type: bind
        source: ./.git/
        target: /var/uwsgi/.git/
        read_only: true

    # Expose the default port

    # link container to database
    links:
      - db
      - redis
      - asgi

  asgi:
    # a custom image for django
    build: ./uwsgi

    # You can pass multiple environment variables from an external file through
    # to a service’s containers with the ‘env_file’ option
    env_file:
      - .env

    # exec a different command from image
    command: daphne -b 0.0.0.0 -p 8001 --proxy-headers --verbosity 2 image.asgi:application

    # set working dir for uwsgi
    working_dir: /var/uwsgi/image/

    # define volumes
    volumes:
      - type: bind
        source: ./django-data/
        target: /var/uwsgi/

    # expose a port outside for websocket connections
    ports:
      - "28001:8001"

    # link container to database
    links:
      - db
      - redis


  celery-worker:
    # the same django image of uwsgi
    build: ./uwsgi

    # You can pass multiple environment variables from an external file through
    # to a service’s containers with the ‘env_file’ option
    env_file:
      - .env

    # exec a different command uwsgi
    command: celery -A image worker -l info -E --uid www-data --max-tasks-per-child 100 --max-memory-per-child 512000 --autoscale=4,2 --pidfile /var/run/celery/celery.pid

    # set working dir for uwsgi
    working_dir: /var/uwsgi/image/

    # define volumes
    volumes:
      - type: bind
        source: ./django-data/
        target: /var/uwsgi/

    # Expose the default port

    # link container to database
    links:
      - db
      - redis


  celery-beat:
    # the same django image of uwsgi
    build: ./uwsgi

    # You can pass multiple environment variables from an external file through
    # to a service’s containers with the ‘env_file’ option
    env_file:
      - .env

    command: celery -A image beat -l info --scheduler django_celery_beat.schedulers:DatabaseScheduler --pidfile /var/run/celery/celerybeat.pid

    # set working dir for uwsgi
    working_dir: /var/uwsgi/image/

    # define volumes
    volumes:
      - type: bind
        source: ./django-data/
        target: /var/uwsgi/

    # Expose the default port

    # link container to database
    links:
      - db
      - redis

  nginx:
    # a custom image for NGINX
    build: ./nginx

    volumes:
      - type: bind
        source: ./nginx/conf.d/
        target: /etc/nginx/conf.d/

      - type: bind
        source: ./django-data/
        target: /var/uwsgi/

    ports:
      - "26080:80"

    # link container uwsgi
    links:
      - uwsgi
      - asgi

volumes:
  redis-data:

networks:
  default: