修改一下dockerfile

Change-Id: I33e3fd9e129bc2c539cbe37cbfa45a7666341cf0
diff --git a/Dockerfile b/Dockerfile
index 875dd83..99ba20b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,21 +1,18 @@
-# 基础镜像
-FROM node:16
-
-# 设置工作目录
+# 构建阶段
+FROM node:16 as build
 WORKDIR /app
-
-# 复制package.json和package-lock.json
 COPY package*.json ./
-
 # 使用淘宝镜像源安装依赖
 RUN npm config set registry https://registry.npmmirror.com && \
     npm install
-
-# 复制项目文件
 COPY . .
+RUN npm run build
 
-# 暴露端口
+# 生产阶段
+FROM nginx:alpine
+COPY --from=build /app/dist  /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
 EXPOSE 3004
 
-# 启动应用
-CMD ["npm", "run", "dev"]    
\ No newline at end of file
+CMD ["nginx", "-g", "daemon off;"]
\ No newline at end of file