FROM python:3.9-slim

WORKDIR /app

# Install minimal dependencies
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
    git \
    && rm -rf /var/lib/apt/lists/*

# Create writable directories
RUN mkdir -p /app/qa_model /app/cache && \
    chmod -R 777 /app

COPY requirements.txt .
RUN pip install --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

COPY . .

CMD ["streamlit", "run", "app.py", "--server.port=8501", "--server.address=0.0.0.0"]