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Dockerfile

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+# 支持: linux/amd64, linux/arm64, linux/arm/v7
+
+# ==========================================
+# 第一阶段：依赖安装与构建阶段
+# ==========================================
+FROM node:22-alpine AS builder
+
+WORKDIR /app
+ENV NODE_OPTIONS="--max-old-space-size=1024"
+ENV VITE_BUILD_THREADS=1
+ENV NITRO_PRESET=node-server
+# 1. 仅复制依赖相关文件和 scripts 目录（因为 postinstall 需要），利用 Docker 缓存层
+COPY package.json package-lock.json ./
+COPY scripts ./scripts
+
+# 配置 npm 镜像加速并安装依赖，严格内存优化
+RUN set -eux; \
+    npm config set registry https://registry.npmmirror.com; \
+    npm config set maxsockets 3; \
+    npm config set progress false; \
+    npm config set cache /tmp/npm-cache; \
+    npm install --package-lock-only --ignore-scripts; \
+    npm ci --prefer-offline --no-audit --no-fund --maxsockets=3
+
+# 2. 复制源代码并进行构建
+# 只有在 package.json 没变而源代码改变时，才会从这一步开始重新执行，跳过上面的耗时依赖安装
+COPY . .
+
+# 构建应用，使用内存优化脚本适应4GB总内存
+RUN chmod +x scripts/memory-build.js && \
+    node scripts/memory-build.js
+RUN npm prune --omit=dev
+
+# ==========================================
+# 第二阶段：运行阶段
+# ==========================================
+FROM node:22-alpine AS runtime
+
+USER root
+WORKDIR /app
+
+# 从构建阶段复制必要文件，剔除无关的开发依赖
+COPY --from=builder /app/package.json ./
+COPY --from=builder /app/package-lock.json ./
+COPY --from=builder /app/drizzle.config.ts ./
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/.output ./.output
+COPY --from=builder /app/app/drizzle ./app/drizzle
+COPY --from=builder /app/scripts ./scripts
+# 如果有 vendor 目录再取消注释
+# COPY --from=builder /app/vendor ./vendor
+
+# 环境变量配置
+ENV NODE_ENV=production \
+    PORT=3000 \
+    NPM_CONFIG_UPDATE_NOTIFIER=false \
+    PREBUILT=true \
+    NODE_OPTIONS="--max-old-space-size=512"
+
+# 暴露端口
+EXPOSE $PORT
+
+# 启动命令：先执行数据库迁移，再启动应用
+CMD ["sh", "-c", "node scripts/deploy.js && node .output/server/index.mjs"]