# ---- 构建阶段 ----
FROM node:24-alpine AS builder

WORKDIR /app

# 先只拷贝依赖清单，配合 Docker 层缓存：源码变动时不会重复装依赖
COPY package.json package-lock.json ./
RUN npm ci --no-audit --no-fund

COPY . .
RUN npm run build

# ---- 运行阶段 ----
FROM nginx:1.27-alpine

COPY deploy/nginx.conf /etc/nginx/conf.d/default.conf
COPY --from=builder /app/dist /usr/share/nginx/html

EXPOSE 80