syntax=docker/dockerfile:1

Use the official Node.js runtime as the base image

FROM node:18-alpine AS base

Install dependencies only when needed

FROM base AS deps

Check github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.

RUN apk add --no-cache libc6-compat openssl WORKDIR /app

Install depenadencies based on the preferred package manager

COPY package.json package-lock.json* ./ RUN npm ci

Development image for hot reloading

FROM base AS development WORKDIR /app RUN apk add --no-cache openssl postgresql-client COPY package.json package-lock.json* ./ RUN npm install COPY . . RUN npx prisma generate EXPOSE 3000 CMD ["npm", "run", "dev"]

Rebuild the source code only when needed

FROM base AS builder WORKDIR /app RUN apk add --no-cache openssl COPY --from=deps /app/node_modules ./node_modules COPY . .

Generate Prisma client

RUN npx prisma generate

Next.js collects completely anonymous telemetry data about general usage.

Learn more here: nextjs.org/telemetry

Uncomment the following line in case you want to disable telemetry during the build.

ENV NEXT_TELEMETRY_DISABLED 1

RUN npm run build

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 apk add --no-cache openssl RUN addgroup --system --gid 1001 nodejs RUN adduser --system --uid 1001 nextjs

COPY --from=builder /app/public ./public

Set the correct permission for prerender cache

RUN mkdir .next RUN chown nextjs:nodejs .next

Copy Prisma files and generated client

COPY --from=builder /app/prisma ./prisma COPY --from=builder /app/node_modules/.prisma ./node_modules/.prisma COPY --from=builder /app/node_modules/@prisma ./node_modules/@prisma

Automatically leverage output traces to reduce image size

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

set hostname to localhost

ENV HOSTNAME "0.0.0.0"

server.js is created by next build from the standalone output

nextjs.org/docs/pages/api-reference/next-config-js/output

CMD ["node", "server.js"]