version: "3.9" services: db: image: postgres:15-alpine environment: POSTGRES_PASSWORD: postgres POSTGRES_USER: postgres POSTGRES_DB: postgres ports: - "5432:5432" volumes: - db_data:/var/lib/postgresql/data backend: build: context: ./backend dockerfile: Dockerfile depends_on: - db ports: - "8000:8000" volumes: - ./:/app environment: - PYTHONUNBUFFERED=1 volumes: db_data: