# syntax=docker/dockerfile:1 # 1) Install dependencies FROM node:20-alpine AS deps WORKDIR /app COPY package.json package-lock.json ./ RUN npm ci --legacy-peer-deps # 2) Build the Next.js app (standalone output is enabled in next.config.mjs) FROM node:20-alpine AS builder WORKDIR /app ENV NEXT_TELEMETRY_DISABLED=1 COPY --from=deps /app/node_modules ./node_modules COPY . . RUN npm run build # 3) Production runner (small image using standalone output) FROM node:20-alpine AS runner WORKDIR /app ENV NODE_ENV=production ENV PORT=3000 ENV HOSTNAME=0.0.0.0 # Copy standalone server and static files COPY --from=builder /app/.next/standalone ./ COPY --from=builder /app/.next/static ./.next/static COPY --from=builder /app/public ./public EXPOSE 3000 CMD ["node", "server.js"]