Initial commit: rdgen with GitHub/Gitea dual build backend

Dockerfile

@@ -0,0 +1,33 @@
+FROM python:3.13-alpine
+
+ENV PYTHONUNBUFFERED=1 \
+    PYTHONDONTWRITEBYTECODE=1 \
+    PIP_NO_CACHE_DIR=1
+
+WORKDIR /opt/rdgen
+
+# 先单独安装依赖，尽量复用 Docker 层缓存
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# 拷贝项目源码
+COPY . .
+
+# su-exec 用于在入口脚本中降权运行；创建非 root 用户与数据目录；
+# 预收集静态文件（WhiteNoise 直接由应用进程对外提供）
+RUN apk add --no-cache su-exec wget \
+    && adduser -D -u 1000 appuser \
+    && mkdir -p exe png temp_zips data static \
+    && sed -i 's/\r$//' docker-entrypoint.sh \
+    && chmod +x docker-entrypoint.sh \
+    && python manage.py collectstatic --noinput \
+    && chown -R appuser:appuser /opt/rdgen
+
+EXPOSE 8000
+
+# 健康检查：业务根路径需要登录会 302，故检查专用的 /healthz
+HEALTHCHECK --interval=30s --timeout=5s --retries=3 \
+    CMD wget -q -O /dev/null http://127.0.0.1:8000/healthz/ || exit 1
+
+ENTRYPOINT ["./docker-entrypoint.sh"]
+CMD ["gunicorn", "-c", "gunicorn.conf.py", "rdgen.wsgi:application"]