FROM node:20-alpine AS builder

WORKDIR /app

COPY package*.json ./

RUN npm ci --only=production && npm cache clean --force

COPY . .

RUN npm run build || echo "No build step needed"

FROM node:20-alpine AS production

WORKDIR /app

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

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

USER uta-sync

EXPOSE 1001


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