docker-compose_with-django

https://docs.docker.com/compose/django/#connect-the-database

Connect the database

In this section, you set up the database connection for Django.

In your project directory, edit the composeexample/settings.py file.

Replace the DATABASES = ... with the following:

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql',
        'NAME': 'postgres',
        'USER': 'postgres',
        'HOST': 'db',
        'PORT': 5432,
    }
}