First commit

frontend/Dockerfile

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+# =====================================================================
+# 前端镜像：pnpm 构建静态资源 -> Nginx 托管（同时反代 /api 到后端）
+# 构建：docker build -t lab-frontend ./frontend
+# =====================================================================
+
+# ---------- 构建阶段 ----------
+FROM node:24-alpine AS build
+WORKDIR /app
+
+# 使用与本地一致的 pnpm 主版本，锁定依赖保证可复现
+RUN npm install -g pnpm@11.3.0
+
+# 先装依赖，充分利用层缓存
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
+RUN pnpm install --frozen-lockfile
+
+COPY . .
+RUN pnpm build
+
+# ---------- 运行阶段 ----------
+FROM nginx:1.27-alpine
+
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+COPY --from=build /app/dist /usr/share/nginx/html
+
+EXPOSE 80
+
+HEALTHCHECK --interval=15s --timeout=3s --start-period=10s --retries=3 \
+    CMD wget -q -O /dev/null http://127.0.0.1/ || exit 1