FROM node:20-alpine as build
WORKDIR /app
COPY package.json package-lock.json* yarn.lock* pnpm-lock.yaml* ./
RUN npm i || yarn || true
COPY . .
ENV VITE_BACKEND_URL=http://backend:3000
ENV VITE_MQTT_URL=wss://mqtt.yourcompany.com:8083/mqtt
RUN npm run build

FROM nginx:alpine
COPY --from=build /app/dist /usr/share/nginx/html
COPY nginx.conf /etc/nginx/conf.d/default.conf
EXPOSE 80