FROM node:20-alpine AS build
WORKDIR /app
COPY package*.json ./
RUN npm ci
COPY . .
RUN npm run build

FROM node:20-alpine AS runtime
WORKDIR /app
COPY --from=build /app/.next/standalone ./
COPY --from=build /app/public ./public
EXPOSE 3000
ENV NODE_ENV=production
CMD ["node", "server.js"]