Dockerfile

FROM python:3.9-slim

WORKDIR /app

# System deps
RUN apt-get update && apt-get install -y --no-install-recommends \
        ffmpeg libsm6 libxext6 libxrender-dev libgl1-mesa-glx fontconfig \
    && rm -rf /var/lib/apt/lists/*

# Cache dirs that must be writable
RUN mkdir -p /app/.cache/matplotlib /app/.cache/fontconfig
ENV MPLCONFIGDIR=/app/.cache/matplotlib \
    FONTCONFIG_PATH=/app/.cache/fontconfig

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

# Copy code and Streamlit config
COPY src/ ./src/
COPY .streamlit/ ./.streamlit/

# Expose the port the Space will hit
EXPOSE 7860

# IMPORTANT: use the port env var Hugging Face injects
ENV PORT=7860

ENTRYPOINT ["streamlit", "run", "src/streamlit_app.py", \
            "--server.headless=true", \
            "--server.port=7860", \
            "--server.enableXsrfProtection=false", \
            "--server.enableCORS=false"]