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November 19, 2025 07:36
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Next.js Dockerfile
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| # syntax=docker.io/docker/dockerfile:1 | |
| FROM node:20-alpine AS base | |
| # 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 | |
| # Install dependencies based on the preferred package manager | |
| COPY package.json yarn.lock* package-lock.json* pnpm-lock.yaml* .npmrc* ./ | |
| RUN \ | |
| if [ -f yarn.lock ]; then yarn --frozen-lockfile; \ | |
| elif [ -f package-lock.json ]; then npm ci; \ | |
| elif [ -f pnpm-lock.yaml ]; then corepack enable pnpm && pnpm i --frozen-lockfile; \ | |
| else echo "Lockfile not found." && exit 1; \ | |
| fi | |
| # Rebuild the source code only when needed | |
| FROM base AS builder | |
| WORKDIR /app | |
| COPY --from=deps /app/node_modules ./node_modules | |
| COPY . . | |
| # Next.js collects completely anonymous telemetry data about general usage. | |
| # Learn more here: https://nextjs.org/telemetry | |
| # Uncomment the following line in case you want to disable telemetry during the build. | |
| # ENV NEXT_TELEMETRY_DISABLED=1 | |
| RUN \ | |
| if [ -f yarn.lock ]; then yarn run build; \ | |
| elif [ -f package-lock.json ]; then npm run build; \ | |
| elif [ -f pnpm-lock.yaml ]; then corepack enable pnpm && pnpm run build; \ | |
| else echo "Lockfile not found." && exit 1; \ | |
| fi | |
| # Production image, copy all the files and run next | |
| FROM base AS runner | |
| WORKDIR /app | |
| ENV NODE_ENV=production | |
| # Uncomment the following line in case you want to disable telemetry during runtime. | |
| # ENV NEXT_TELEMETRY_DISABLED=1 | |
| RUN addgroup --system --gid 1001 nodejs | |
| RUN adduser --system --uid 1001 nextjs | |
| 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 --chown=nextjs:nodejs /app/.next/standalone ./ | |
| COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static | |
| USER nextjs | |
| EXPOSE 3000 | |
| ENV PORT=3000 | |
| # server.js is created by next build from the standalone output | |
| # https://nextjs.org/docs/pages/api-reference/config/next-config-js/output | |
| ENV HOSTNAME="0.0.0.0" | |
| CMD ["node", "server.js"] |
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