production.yml

version: "3"
services:
  # The web service is your Django application.
  web:
    build:
      # The context is the directory containing the Dockerfile.
      context: ./src/
    # The command to start your Django application.
    # I'm using Gunicorn here, but you could use anything.
    command: gunicorn MarBlazeShop.wsgi:application --bind 0.0.0.0:8000
    volumes:
      # Mount the application code into the container.
      # This is useful for development, as it lets you edit code without rebuilding the image.
      - ./src/:/usr/src/app/
      # These volumes store your application's static and media files.
      # They are kept separate so they can be served by a different server in production.
      - static_files:/usr/src/app/static
      - media_files:/home/app/media/
    ports:
      # Expose port 8000 in the container to port 8000 on the host machine.
      - 8000:8000
    env_file:
      # Use environment variables from a .env file.
      # This is where you should put any secrets, like your SECRET_KEY.
      - ./src/prod.env
    
    depends_on:
      # This ensures the database service is started before the web service.
      - db
      
  # The db service is your database.
  db:
    image: postgres:latest
    restart: always
    # env_file:
    #   - src/.env  
    ports:
      - "5432:5432"
    volumes:
      # This volume stores your database data. It allows data to persist across container restarts.
      - postgres_data:/var/lib/postgresql/data/
    environment:
      # These environment variables set up the initial database and user.
      - POSTGRES_DB=postgres
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=postgres
    # A friendly name for the container.
    container_name: MarBlazeShop_prod_postgres_db

  nginx:
    build:
      context: ./nginx/
    ports:
      - 80:80
    volumes:
      - ./nginx/conf.d/:/etc/nginx/conf.d/
      - static_files:/home/app/static/
      - media_files:/home/app/media/
    
    depends_on:
      - web

# These are the volumes used above.
# In a development environment, these will be created as anonymous volumes.
volumes:
  static_files:
  media_files:
  postgres_data: