Dockerfile

FROM node:18-alpine AS base

FROM base AS deps
RUN apk add --no-cache libc6-compat
WORKDIR /app
COPY package.json yarn.lock* package-lock.json* pnpm-lock.yaml* ./
RUN \
  if [ -f yarn.lock ]; then yarn --frozen-lockfile; \
  elif [ -f package-lock.json ]; then npm ci; \
  elif [ -f pnpm-lock.yaml ]; then yarn global add pnpm && pnpm i --frozen-lockfile; \
  else echo "Lockfile not found." && exit 1; \
  fi
RUN npm install -g --arch=x64 --platform=linux --libc=glibc sharp

FROM base AS builder
WORKDIR /app
COPY . .
COPY --from=deps /app/node_modules ./node_modules
ENV BUILD_STANDALONE 1
ENV NEXT_TELEMETRY_DISABLED 1
RUN npm run build

FROM base AS runner
WORKDIR /app
ENV NODE_ENV production
ENV NEXT_SHARP_PATH=/usr/local/lib/node_modules/sharp
RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs
COPY --from=deps --chown=nextjs:nodejs /usr/local/lib/node_modules/sharp /usr/local/lib/node_modules/sharp
COPY --from=builder /app/public ./public
RUN mkdir dist
RUN chown nextjs:nodejs dist
COPY --from=builder --chown=nextjs:nodejs /app/dist/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/dist/static ./dist/static

USER nextjs
EXPOSE 3000
ENV PORT 3000
ENV HOSTNAME "0.0.0.0"

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