FROM node:20-alpine AS base
ENV NODE_ENV=production
WORKDIR /app

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

COPY . .
EXPOSE ${PORT:-3000}

HEALTHCHECK --interval=30s --timeout=5s --retries=3 CMD node -e "require('http').get('http://localhost:'+(process.env.PORT||3000)+'/health',res=>{if(res.statusCode===200)process.exit(0);process.exit(1);}).on('error',()=>process.exit(1))"

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