Dockerfile

FROM node:18-alpine AS base

# Install dependencies only when needed
FROM base AS deps

ENV NEXT_TELEMETRY_DISABLED="1"

# 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 .npmrc package.json pnpm-lock.yaml* ./

RUN npm i -g pnpm@8 && pnpm i --frozen-lockfile

# Rebuild the source code only when needed
FROM base AS builder

WORKDIR /app

COPY --from=deps /app/node_modules ./node_modules

COPY . .

RUN npm i -g pnpm@8 && pnpm build

# Production image, copy all the files and run next
FROM base AS runner

ENV NODE_ENV="production" \
    NEXT_TELEMETRY_DISABLED="1" \
    PORT="3000"

WORKDIR /app

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

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