# --- 构建阶段 ---
FROM node:20-alpine AS builder
WORKDIR /app

# 先复制依赖描述文件，利用层缓存
COPY package.json package-lock.json ./
RUN npm install

# 再复制源码，构建
COPY . .
RUN npm run type-check && npm run build

# --- 生产阶段 ---
FROM nginx:alpine
RUN apk add --no-cache curl
COPY --from=builder /app/dist/ /usr/share/nginx/html/
RUN chmod -R 755 /usr/share/nginx/html
COPY nginx.conf /etc/nginx/conf.d/default.conf
EXPOSE 80