services:
  django-app:
    image: wtukatyr/django-example-app:latest
    container_name: django-app
    ports:
      - "8989:8000"
    depends_on: 
      - db
    volumes:
      - ./mysite:/app/mysite
      - ./polls:/app/polls
    environment:
      DATABASE_NAME: ${DATABASE_NAME}
      DATABASE_USERNAME: ${DATABASE_USERNAME}
      DATABASE_HOST: ${DATABASE_HOST}
      DATABASE_PASSWORD: ${DATABASE_PASSWORD}
      DATABASE_PORT: ${DATABASE_PORT}
    env_file:
      - .env
    networks:
      - django_app_network
      - proxy_common

  db:
    image: postgres:14
    restart: always
    # set shared memory limit when using docker compose
    shm_size: 128mb
    # or set shared memory limit when deploy via swarm stack
    #volumes:
    #  - type: tmpfs
    #    target: /dev/shm
    #    tmpfs:
    #      size: 134217728 # 128*2^20 bytes = 128Mb
    container_name: postgres
    volumes:
      - pg-data:/var/lib/postgresql/data
    environment:
      POSTGRES_DB: ${DATABASE_NAME}
      POSTGRES_USER: ${DATABASE_USERNAME}
      POSTGRES_PASSWORD: ${DATABASE_PASSWORD}
      POSTGRES_PORT: ${DATABASE_PORT}
    env_file:
      - .env
    networks:
      - django_app_network
      - proxy_common

volumes:
  pg-data:

networks:
  django_app_network:
    name: django_app_network
  proxy_common:
    external: true