FROM node:24-alpine AS dependencies

WORKDIR /app
COPY package.json package-lock.json ./
RUN npm ci --omit=dev

FROM node:24-alpine

ENV NODE_ENV=production
WORKDIR /app

COPY --from=dependencies /app/node_modules ./node_modules
COPY package.json ./
COPY src ./src

USER node
EXPOSE 3000

HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD node -e "fetch('http://127.0.0.1:'+(process.env.PORT||3000)+'/healthz').then(r=>{if(!r.ok)process.exit(1)}).catch(()=>process.exit(1))"

CMD ["node", "src/index.js"]