Dockerfile

FROM python:3.9-slim

ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

# HF requires port 7860
ENV STREAMLIT_SERVER_PORT=7860
ENV STREAMLIT_SERVER_ADDRESS=0.0.0.0

WORKDIR /app

# Copy dependencies first
COPY requirements.txt .

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

# Copy app code
COPY . .

# Expose HF-required port
EXPOSE 7860

# Start Streamlit
CMD ["streamlit", "run", "app.py"]