Django / Postgres docker compose file

docker-compose.yml

version: '3.8'

# .env.docker
# DATABASE_URL=postgres://postgres:postgres@db/mydb
# POSTGRES_USER=postgres
# POSTGRES_PASSWORD=postgres
# POSTGRES_DB=mydb

services:
  web:
    container_name: 'django-web'
    build: .
#    command: python /code/manage.py runserver 0.0.0.0:8000
    command: gunicorn config.wsgi -b 0.0.0.0:8000
    volumes:
      - .:/code
    ports:
      - 8000:8000
    depends_on:
      - db
    environment:
      - "ENV_PATH=.env.docker"

  db:
    image: postgres:13.4
    container_name: 'django-db'
    labels:
      application: 'postgres-db'
    volumes:
      - postgres_data:/var/lib/postgresql/data/
    env_file:
      - ./.env.docker
    ports:
      - "5432:5432"
    expose:
      - "5432"

volumes:
  postgres_data: