Dockerfile

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

# Stage 2: Python runtime
FROM python:3.11-slim

# Set up user for HuggingFace
RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

WORKDIR $HOME/app

# Copy requirements first for caching
COPY --chown=user requirements.txt .
RUN pip install --no-cache-dir --upgrade pip
RUN pip install --no-cache-dir -r requirements.txt

# Copy backend
COPY --chown=user backend/ ./backend/

# Copy frontend build from stage 1
COPY --from=frontend-builder --chown=user /app/frontend/dist ./frontend/dist

# Environment
ENV PORT=7860
EXPOSE 7860

# Run server
CMD ["python", "-m", "uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "7860"]