version: "3.9"

services:
  db:
    image: postgres:16
    container_name: url_shortener_db
    restart: always
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
      POSTGRES_DB: url_db
    volumes:
      - postgres_data:/var/lib/postgresql/data

  app:
    build: .
    container_name: url_shortener_app
    depends_on:
      - db
    environment:
      DATABASE_URL: postgresql+psycopg2://postgres:postgres@db:5432/url_db
      BASE_URL: http://localhost:8000
    ports:
      - "8000:8000"
    command: >
      sh -c "alembic upgrade head &&
             uvicorn app.main:app --host 0.0.0.0 --port 8000"

volumes:
  postgres_data: