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# ---- 第 1 阶段:安装依赖 ----
FROM node:20-alpine AS deps
# 启用 corepack 并激活 pnpm(Node20 默认提供 corepack)
RUN corepack enable && corepack prepare pnpm@latest --activate
WORKDIR /app
# 仅复制依赖清单,提高构建缓存利用率
COPY package.json pnpm-lock.yaml ./
# 清理任何潜在的缓存并安装所有依赖(包括可选的原生模块)
RUN pnpm store prune && pnpm install --frozen-lockfile
# ---- 第 2 阶段:构建项目 ----
FROM node:20-alpine AS builder
# 安装构建工具以编译原生模块
RUN apk add --no-cache python3 make g++
RUN corepack enable && corepack prepare pnpm@latest --activate
WORKDIR /app
# 复制package files先,确保依赖版本一致
COPY package.json pnpm-lock.yaml ./
# 复制依赖
COPY --from=deps /app/node_modules ./node_modules
# 验证依赖完整性,如果不匹配则重新安装
RUN pnpm install --frozen-lockfile --offline || pnpm install --frozen-lockfile
# 复制全部源代码
COPY . .
# 在构建阶段设置 DOCKER_BUILD,启用 standalone 输出
ENV DOCKER_BUILD=true
# 生成生产构建
RUN pnpm run build
# ---- 第 3 阶段:生成运行时镜像 ----
FROM node:20-alpine AS runner
# 安装 CA 证书以支持 HTTPS 请求
RUN apk add --no-cache ca-certificates \
&& rm -rf /var/cache/apk/* \
&& rm -rf /tmp/*
# 创建非 root 用户
RUN addgroup -g 1001 -S nodejs && adduser -u 1001 -S nextjs -G nodejs
WORKDIR /app
# 创建视频缓存目录并设置权限
RUN mkdir -p /app/video-cache && chown -R nextjs:nodejs /app/video-cache
ENV NODE_ENV=production
ENV HOSTNAME=0.0.0.0
ENV PORT=3000
ENV DOCKER_BUILD=true
# Puppeteer 配置:使用系统安装的 Chromium(已禁用)
# ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true
# ENV PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium-browser
# 从构建器中复制 standalone 输出
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
# 从构建器中复制 scripts 目录
COPY --from=builder --chown=nextjs:nodejs /app/scripts ./scripts
# 从构建器中复制 start.js
COPY --from=builder --chown=nextjs:nodejs /app/start.js ./start.js
# 从构建器中复制 public 和 .next/static 目录
COPY --from=builder --chown=nextjs:nodejs /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
# 切换到非特权用户
USER nextjs
EXPOSE 3000
# 使用自定义启动脚本,先预加载配置再启动服务器
CMD ["node", "start.js"]