compose.yml
```yaml
services:
  db:
    image: postgres:17-alpine
    container_name: oui-db
    restart: always
    environment:
      - POSTGRES_USER=webui
      - POSTGRES_PASSWORD=webui_password
      - POSTGRES_DB=open_webui
    volumes:
      - db_data:/var/lib/postgresql/data

  open-webui:
    image: ghcr.io/open-webui/open-webui:main
    container_name: oui
    restart: always
    ports:
      - "3000:8080"
    depends_on:
      - db
    extra_hosts:
      - "host.docker.internal:host-gateway"
    environment:
      - 'DATABASE_URL=postgresql://webui:webui_password@db:5432/open_webui'
      - 'OPENAI_API_BASE_URL=http://host.docker.internal:4000/v1'
      - 'OPENAI_API_KEY=sk-1234'
      - 'WEBUI_SECRET_KEY=super_secret_key'
    volumes:
      - oui_data:/app/data

volumes:
  db_data:
  oui_data:
```