Phase G2-1~G2-6: Code Execution Worker - Docker sandbox deployment, backend API (code_exec_admin.py), frontend CodeExecTab, security hardening (read-only FS, non-root, capability dropping, RLIMIT_AS)

executor_sandbox/Dockerfile

@@ -0,0 +1,42 @@
+FROM python:3.11-slim
+
+LABEL maintainer="qihuaiflow"
+LABEL description="Code Execution Sandbox - isolated code runner for Python and JavaScript"
+
+# Switch to Aliyun mirrors for faster downloads in China
+RUN sed -i 's|http://deb.debian.org/debian|http://mirrors.aliyun.com/debian|g' /etc/apt/sources.list.d/debian.sources \
+    && sed -i 's|http://deb.debian.org/debian-security|http://mirrors.aliyun.com/debian-security|g' /etc/apt/sources.list.d/debian.sources
+
+# Install Node.js from Debian repos + essential tools
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+        nodejs \
+        npm \
+        curl \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* \
+    && ln -sf /usr/bin/nodejs /usr/bin/node 2>/dev/null || true
+
+# Install Python packages with Aliyun mirror
+RUN pip install --no-cache-dir -i https://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com \
+    fastapi==0.104.1 \
+    uvicorn==0.24.0 \
+    pydantic==2.5.2
+
+# Create non-root user for security
+RUN useradd -m -s /bin/bash executor \
+    && mkdir -p /workspace /app \
+    && chown -R executor:executor /workspace /app
+
+# Copy executor server
+COPY executor_server.py /app/executor_server.py
+RUN chown executor:executor /app/executor_server.py
+
+WORKDIR /app
+USER executor
+EXPOSE 8000
+
+HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 \
+    CMD curl -f http://localhost:8000/health || exit 1
+
+CMD ["uvicorn", "executor_server:app", "--host", "0.0.0.0", "--port", "8000", "--no-access-log"]