FROM node:20-alpine AS builder

WORKDIR /app

COPY package*.json ./
RUN npm ci --only=production

COPY index.js ./

FROM node:20-alpine

WORKDIR /app

COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/index.js .

RUN addgroup -g 1001 -S nodejs && \
    adduser -S nodejs -u 1001

USER nodejs

EXPOSE 3000

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