FROM python:3.11-slim

ENV PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1

WORKDIR /app

# 安装依赖
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# 拷贝代码
COPY . .

# 运行 FastAPI 应用
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]