Dockerfile

# Stage 1: Build React Frontend
FROM node:18 AS build
WORKDIR /app/frontend
COPY frontend/package*.json ./
RUN npm install
COPY frontend/ ./
RUN npm run build

# Stage 2: Setup Node.js Backend
FROM node:18
WORKDIR /app
COPY backend/package*.json ./
RUN npm install
COPY backend/ ./
# Copy built React files to backend public folder
COPY --from=build /app/frontend/dist ./public

EXPOSE 7860
CMD ["node", "server.js"]