FROM node:22-alpine

WORKDIR /app

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

COPY src ./src

ENV NODE_ENV=production
EXPOSE 3000

HEALTHCHECK --interval=30s --timeout=3s --start-period=5s \
  CMD wget --no-verbose --tries=1 --spider http://localhost:3000/health || exit 1

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