Configuring Daphne for Django Channels

In Chapter 16, Building a Chat Server, you used Django Channels to build a chat server using WebSockets and you used Daphne to serve asynchronous requests by replacing the standard Django runserver command. We will add Daphne to our production environment.

Let’s create a new service in the Docker Compose file to run the Daphne web server.

Edit the docker-compose.yml file and add the following lines inside the services block:

daphne:
    build: .
    working_dir: /code/educa/
    command: ["../wait-for-it.sh", "db:5432", "--",
              "daphne", "-b", "0.0.0.0", "-p", "9001",
              "educa.asgi:application"]
    restart: always
    volumes:
      - .:/code
    environment:
      - DJANGO_SETTINGS_MODULE=educa.settings.prod
      - POSTGRES_DB=postgres
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=postgres
    depends_on...