feat: 优化dockerfile,可使包体积从1.1G缩小至200M

Dockerfile

@@ -1,23 +1,39 @@
 ARG NOTION_PAGE_ID
 ARG NEXT_PUBLIC_THEME
 
-# Install dependencies only when needed
-FROM node:18-alpine3.18 AS deps
+FROM node:18-alpine3.18 AS base
+
+# 1. Install dependencies only when needed
+FROM base AS deps
 # Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
 RUN apk add --no-cache libc6-compat
 WORKDIR /app
 COPY package.json ./
 RUN yarn install --frozen-lockfile
 
-# Rebuild the source code only when needed
-FROM node:18-alpine3.18 AS builder
+# 2. Rebuild the source code only when needed
+FROM base AS builder
 ARG NOTION_PAGE_ID
 WORKDIR /app
 COPY --from=deps /app/node_modules ./node_modules
 COPY . .
 RUN yarn build
 
-ENV NODE_ENV production
+# 3. Production image, copy all the files and run next
+FROM base AS runner
+WORKDIR /app
+
+ENV NODE_ENV=production
+
+COPY --from=builder /app/public ./public
+
+# Automatically leverage output traces to reduce image size
+# https://nextjs.org/docs/advanced-features/output-file-tracing
+COPY --from=builder /app/.next/standalone ./
+COPY --from=builder /app/.next/static ./.next/static
+
+# 个人仓库把将配置好的.env.local文件放到项目根目录，可自动使用环境变量
+# COPY --from=builder /app/.env.local ./
 
 EXPOSE 3000
 
@@ -26,4 +42,4 @@ EXPOSE 3000
 # Uncomment the following line in case you want to disable telemetry.
 # ENV NEXT_TELEMETRY_DISABLED 1
 
-CMD ["yarn", "start"]
+CMD ["node", "server.js"]

next.config.js

@@ -84,7 +84,7 @@ const nextConfig = {
   eslint: {
     ignoreDuringBuilds: true
   },
-  output: process.env.EXPORT ? 'export' : undefined,
+  output: process.env.EXPORT ? 'export' : 'standalone',
   staticPageGenerationTimeout: 120,
   // 多语言， 在export时禁用
   i18n: process.env.EXPORT