FROM node:20-alpine

ENV NODE_ENV=production

WORKDIR /app

COPY package*.json ./
RUN apk add --no-cache curl && npm install --omit=dev

COPY . .
RUN chown -R node:node /app

USER node

EXPOSE 4000

HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 \
	CMD curl -f http://localhost:4000/health || exit 1

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