docker-compose.yml

# Also see:
#   Dockerfile
#
# https://docs.docker.com/compose/compose-file/

services:

  app:
    build:
      context: .
    command: >
      bash -c "while !</dev/tcp/db/${DJANGO_DATABASE_PORT:?}; do sleep 1; done;
        ./manage.py runserver 0.0.0.0:8000"
    env_file:
      # .env should be copied from .env.template and configured
      - .env
    environment:
      - DJANGO_SECRET_KEY=${DJANGO_SECRET_KEY:?}
      - DJANGO_DATABASE_HOST=db
      - DJANGO_DATABASE_PASSWORD=${DJANGO_DATABASE_PASSWORD:-postgres}
      - DJANGO_SUPERUSER_USERNAME=${DJANGO_SUPERUSER_USERNAME:?}
      - DJANGO_SUPERUSER_EMAIL=${DJANGO_SUPERUSER_EMAIL:?}
      - DJANGO_SUPERUSER_PASSWORD=${DJANGO_SUPERUSER_PASSWORD:?}
    depends_on:
      - db
    ports:
      - 8000:8000
    restart: always
    volumes:
      - ./:/legaldb

  db:
    env_file:
      # .env should be copied from .env.template and configured
      - .env
    environment:
      - POSTGRES_DB=${DJANGO_DATABASE_NAME:?}
      - POSTGRES_PASSWORD=${DJANGO_DATABASE_PASSWORD:-postgres}
      - POSTGRES_USER=${DJANGO_DATABASE_USER:?}
    # https://hub.docker.com/_/postgres
    # https://devcenter.heroku.com/articles/heroku-postgres-version-support
    # Match version to Heroku app. Keep in sync with .github/workflows/main.yml
    image: postgres:16-alpine
    restart: always
    volumes:
      - ./tmp/pgdata/:/var/lib/postgresql/data