FROM node:22-alpine AS builder

WORKDIR /app

COPY package.json package-lock.json ./
RUN npm ci

COPY . .
RUN npm run build

FROM node:22-alpine AS runtime

WORKDIR /app
ENV NODE_ENV=production \
    HOSTNAME=0.0.0.0 \
    PORT=3000

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

COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
COPY --from=builder --chown=nextjs:nodejs /app/public ./public
RUN mkdir -p .next/cache && chown -R nextjs:nodejs .next/cache

USER nextjs
EXPOSE 3000

HEALTHCHECK --interval=30s --timeout=3s --start-period=10s --retries=3 \
  CMD wget --no-verbose --tries=1 --spider http://127.0.0.1:3000/ || exit 1

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