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+ # Hugging Face Space 用的 Docker 配置
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+ FROM python:3.11-slim
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+
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+ # HF Space 容器以 uid 1000 运行,建非 root 用户是官方要求的最佳实践
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+ RUN useradd -m -u 1000 user
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+ USER user
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+ ENV PATH="/home/user/.local/bin:$PATH"
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+
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+ WORKDIR /home/user/app
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+
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+ # 先装依赖(这一层能被 Docker 缓存,改代码时不用重装)
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+ COPY --chown=user requirements.txt .
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+ RUN pip install --no-cache-dir --upgrade -r requirements.txt
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+
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+ # 再拷贝代码
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+ COPY --chown=user . .
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+
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+ # HF Space 默认期望应用监听 7860 端口
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+ EXPOSE 7860
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+ CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]