docker-compose-dev.yml

services:
  web:
    build: .
    restart: always
    stdin_open: true
    tty: true
    expose:
      # used by nginx: see proxy in sites-enabled
      - "${DEV_PORT}"
      # live test server port range
      - "8081-8179"
    links:
      - postgres
      - selenium
    depends_on:
      - postgres
    volumes:
      - ./infoscience_exports:/usr/src/app/infoscience_exports
      - ./staticfiles:/usr/src/app/staticfiles
      - ./coverage.xml:/usr/src/app/coverage.xml
      - ./docker_volumes/logs:/var/log/django
    env_file:
      - .env
    environment:
      # the following vars need to be overridden because the directive env_file
      # does not compute their value from the other variables
      - SITE_URL=${SITE_URL}
      - DATABASE_URL=${DATABASE_URL}
      - DJANGO_ENV=dev
      - PGPASSWORD=${POSTGRES_PASSWORD}
    # set at least 2 workers, for django-debug-toolbar
    command: gunicorn --max-requests 1 --reload -w 2 -b :${DEV_PORT} --chdir /usr/src/app/infoscience_exports wsgi:application

  nginx:
    build: ./nginx
    ports:
      # out:in = from [out] host, into [in] container
      - "${DEV_PORT}:${DEV_PORT}"
    volumes:
      - ./nginx/sites-enabled/web.template:/etc/nginx/conf.d/web.template
      - ./nginx/assets:/usr/share/nginx/html
      - ./infoscience_exports:/usr/src/app/infoscience_exports
      - ./staticfiles:/usr/src/app/staticfiles
      - ./coverage.xml:/usr/src/app/coverage.xml
      - ./docker_volumes/logs:/var/log/django
    links:
      # used in nginx/sites-enabled/web.conf
      - web
    environment:
      - SERVER_HOST=${SERVER_HOST}
      - SITE_PATH=${SITE_PATH}
      - DEV_PORT=${DEV_PORT}
      - DOLLAR=$$
    command: /bin/bash -c "envsubst < /etc/nginx/conf.d/web.template > /etc/nginx/conf.d/web.conf && nginx -g 'daemon off;'"

  postgres:
    image: postgres:12
    environment:
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
    volumes:
      - ./docker_volumes/db_data:/var/lib/postgresql
    ports:
      - "25432:5432"
    healthcheck:
      test: [ "CMD-SHELL", "pg_isready -U postgres" ]
      interval: 5s
      timeout: 5s
      retries: 5

  selenium:
    image: selenium/standalone-chrome-debug:3.11
    ports:
      - "4444:4444"   # Selenium
      - "${VNC_PORT}:5900"   # VNC server, pass is "secret"