FROM node:20-alpine AS builder

WORKDIR /app
COPY package*.json ./
RUN npm ci
COPY . .
RUN npm run build

FROM node:20-alpine

WORKDIR /app
COPY --from=builder /app/build ./build
COPY --from=builder /app/package.json ./
COPY --from=builder /app/node_modules ./node_modules

EXPOSE 3000
ENV NODE_ENV=production

HEALTHCHECK --interval=30s --timeout=5s --retries=3 CMD wget -qO- http://localhost:3000/ || exit 1

USER node
CMD ["node", "build"]