Dockerfile

FROM node:20-bullseye-slim AS builder
WORKDIR /app

# Copy package.json and install
COPY package*.json ./
RUN npm install --legacy-peer-deps

# Copy sources
COPY . .

# Build Next app
RUN npm run build

# Production image
FROM node:20-bullseye-slim AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

# Copy standalone build
COPY --from=builder /app/public ./public
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"]