Dockerfile

# --- Frontend Stage (React + Vite) ---
FROM node:20-alpine AS frontend
WORKDIR /ui

# Copy package files and install dependencies
COPY frontend/package*.json ./
RUN npm ci --silent || npm install --silent

# Copy frontend source and build
COPY frontend ./
RUN npm run build

# --- Backend Stage (FastAPI + Python) ---
# Use full Debian image for compatibility with Python packages
FROM python:3.11-bullseye
WORKDIR /app

# Install system dependencies often required for Python packages
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
        build-essential \
        git \
        ffmpeg \
        libsm6 \
        libxext6 \
        cmake \
        libgl1-mesa-glx \
        python3-dev \
        && rm -rf /var/lib/apt/lists/*

# Copy requirements and install Python dependencies
COPY requirements.txt ./
RUN pip install --upgrade pip
RUN pip install --no-cache-dir -r requirements.txt

# Copy backend code
COPY backend ./backend
COPY app.py Procfile .env.example ./

# Copy built frontend from frontend stage
COPY --from=frontend /ui/dist ./frontend_dist

# Bust cache so Hugging Face doesn’t reuse stale Node layers
ARG CACHE_BUST=1

EXPOSE 7860
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]