Dockerfile

# Stage 1: Build React client
FROM node:20-alpine AS client-build
WORKDIR /app/client
COPY client/package.json client/package-lock.json* ./
RUN npm install
COPY client/ ./
RUN npm run build

# Stage 2: Production server
FROM node:20-alpine
WORKDIR /app/server

COPY server/package.json server/package-lock.json* ./
RUN npm install --omit=dev

COPY server/ ./
COPY --from=client-build /app/client/dist /app/client/dist

EXPOSE 7860

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