# 生产环境 Dockerfile — 多阶段构建
# Stage 1: 构建
FROM node:20-alpine AS builder

WORKDIR /app

COPY package.json package-lock.json* ./
RUN npm ci

COPY . .
RUN npm run build

# Stage 2: 运行
FROM nginx:1.25-alpine

# 复制自定义 Nginx 配置
COPY docker/nginx.conf /etc/nginx/conf.d/default.conf

# 复制构建产物
COPY --from=builder /app/dist /usr/share/nginx/html

# 健康检查
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
  CMD wget --quiet --tries=1 --spider http://localhost:80/ || exit 1

EXPOSE 80

CMD ["nginx", "-g", "daemon off;"]