# Multi-stage build: First build React app FROM node:18 as frontend-build WORKDIR /frontend COPY frontend/package*.json ./ RUN npm install COPY frontend/ ./ RUN npm run build # Use Python runtime for backend FROM python:3.10 WORKDIR /code COPY backend/requirements.txt /code/backend/requirements.txt RUN pip install --no-cache-dir --upgrade -r /code/backend/requirements.txt RUN useradd -m -u 1000 user USER user ENV HOME=/home/user ENV PATH=/home/user/.local/bin:$PATH WORKDIR $HOME/app # Copy backend COPY --chown=user backend/ $HOME/app/backend/ # Copy built React app to frontend directory COPY --from=frontend-build --chown=user /frontend/dist/ $HOME/app/frontend/ CMD ["uvicorn", "backend.app:app", "--host", "0.0.0.0", "--port", "7860"]