FROM node:20-alpine AS base# Install dependencies only when neededFROM base AS depsWORKDIR /appCOPY package.json package-lock.json* ./RUN npm ci# Rebuild the source code only when neededFROM base AS builderWORKDIR /appCOPY --from=deps /app/node_modules ./node_modulesCOPY . .# Build arguments for environment variablesARG NEXT_PUBLIC_API_URLENV NEXT_PUBLIC_API_URL=${NEXT_PUBLIC_API_URL}RUN npm run build# Production image, copy all the files and run nextFROM base AS runnerWORKDIR /appENV NODE_ENV=productionRUN addgroup --system --gid 1001 nodejsRUN adduser --system --uid 1001 nextjsCOPY --from=builder /app/public ./public# Set the correct permission for prerender cacheRUN mkdir .nextRUN chown nextjs:nodejs .next# Automatically leverage output traces to reduce image sizeCOPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/staticUSER nextjsEXPOSE 3000ENV PORT=3000ENV HOSTNAME="0.0.0.0"CMD ["node", "server.js"]
FROM node:20-alpine AS base
# Install dependencies only when needed
FROM base AS deps
WORKDIR /app
COPY package.json package-lock.json* ./
RUN npm ci
# Rebuild the source code only when needed
FROM base AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
# Build arguments for environment variables
ARG NEXT_PUBLIC_API_URL
ENV NEXT_PUBLIC_API_URL=${NEXT_PUBLIC_API_URL}
RUN npm run build
# Production image, copy all the files and run next
FROM base AS runner
WORKDIR /app
ENV NODE_ENV=production
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
# Automatically leverage output traces to reduce image size
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
ENV HOSTNAME="0.0.0.0"
CMD ["node", "server.js"]