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- # 多阶段构建 - 第一阶段：依赖安装
- FROM python:3.10 as builder
- WORKDIR /build
- # 安装系统依赖（某些Python包需要编译）
- RUN apt-get update && apt-get install -y --no-install-recommends \
- gcc \
- && rm -rf /var/lib/apt/lists/*
- # 复制requirements并安装Python依赖
- COPY requirements.txt .
- RUN pip install --user --no-cache-dir -i https://pypi.tuna.tsinghua.edu.cn/simple --default-timeout=100 -r requirements.txt
- # 第二阶段：运行时镜像
- FROM python:3.10
- WORKDIR /app
- # 安装运行时系统依赖（ffmpeg 用于音频转码）
- RUN apt-get update && apt-get install -y --no-install-recommends \
- ffmpeg \
- && rm -rf /var/lib/apt/lists/*
- # 创建非root用户（安全最佳实践）
- RUN useradd -m -u 1000 appuser
- # 从builder阶段复制已安装的依赖
- COPY --from=builder /root/.local /home/appuser/.local
- # 复制应用代码
- COPY --chown=appuser:appuser . .
- # 设置环境变量
- ENV PATH=/home/appuser/.local/bin:$PATH \
- PYTHONUNBUFFERED=1 \
- PYTHONDONTWRITEBYTECODE=1
- # 切换到非root用户
- USER appuser
- # 暴露端口
- EXPOSE 8000
- # 健康检查
- HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
- CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/docs')" || exit 1
- # 启动应用
- CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "2"]
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