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backend/Dockerfile

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+FROM python:3.9-slim
+
+WORKDIR /app
+
+# 安装系统依赖
+RUN apt-get update && apt-get install -y \
+    curl \
+    default-libmysqlclient-dev \
+    gcc \
+    pkg-config \
+    && rm -rf /var/lib/apt/lists/*
+
+# 复制依赖文件
+COPY requirements.txt .
+
+# 安装Python依赖
+RUN pip install --no-cache-dir -r requirements.txt
+
+# 复制应用代码
+COPY . .
+
+# 暴露端口
+EXPOSE 8000
+
+# 启动命令
+CMD ["gunicorn", "main:app", "-w", "4", "-k", "uvicorn.workers.UvicornWorker", "-b", "0.0.0.0:8000"]