【悟凡】真正意义上的净土重生：只保留核心逻辑

backend/Dockerfile

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+FROM python:3.12-slim
+
+WORKDIR /app
+
+# 安装系统依赖
+RUN apt-get update && apt-get install -y \
+    gcc \
+    libpq-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# 安装 Python 依赖
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# 复制代码
+COPY . .
+
+# 暴露端口
+EXPOSE 8000
+
+CMD ["gunicorn", "meeting_room.wsgi:application", "--bind", "0.0.0.0:8000"]