services: db: image: postgres:14 environment: POSTGRES_DB: mydb POSTGRES_USER: myuser POSTGRES_PASSWORD: mypass volumes: - postgres_data:/var/lib/postgresql/data ports: - "5432:5432" web: build: . command: python manage.py runserver 0.0.0.0:8000 volumes: - .:/app ports: - "8000:8000" depends_on: - db environment: - DB_NAME=mydb - DB_USER=myuser - DB_PASSWORD=mypass - DB_HOST=db - DB_PORT=5432 volumes: postgres_data: