FROM node:20-slim AS build

WORKDIR /app
COPY package*.json ./
RUN npm ci
COPY . .
RUN npm run build  # 如果有前端构建过程，例如 React/Vue

# ---- Runtime 镜像 ----
FROM nginx:1.27-alpine

# 安装 Node.js
RUN apk add --no-cache nodejs npm

WORKDIR /app

# 复制 Node.js 应用
COPY --from=build /app /app

# 拷贝前端静态文件到 nginx 路径
RUN mkdir -p /usr/share/nginx/html && \
    cp -r /app/dist/* /usr/share/nginx/html/

# 拷贝 Nginx 配置
COPY nginx.conf /etc/nginx/nginx.conf

# 启动脚本
COPY start.sh /start.sh
RUN chmod +x /start.sh

EXPOSE 80

CMD ["/start.sh"]