Dockerfile

FROM node:22-alpine AS base

ENV NEXT_TELEMETRY_DISABLED=1

WORKDIR /app

# Install pnpm globally once
RUN npm install -g pnpm

# Dependencies stage
FROM base AS dependencies

COPY package.json pnpm-lock.yaml ./
RUN pnpm install --frozen-lockfile

# Build stage
FROM base AS build

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

RUN pnpm run build

# Production stage
FROM base AS run

ENV NODE_ENV=production
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs
RUN mkdir -p /app/.next && chown -R nextjs:nodejs /app

COPY --from=build --chown=nextjs:nodejs /app/public ./public
COPY --from=build --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=build --chown=nextjs:nodejs /app/.next/static ./.next/static

USER nextjs

EXPOSE 3000
CMD ["node", "server.js"]