Dockerfile

FROM python:3.11-slim

ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
WORKDIR /app

# System deps (optional)
RUN apt-get update && apt-get install -y --no-install-recommends     build-essential  && rm -rf /var/lib/apt/lists/*

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

# Copy app
COPY . /app

# Expose the port expected by HF ($PORT will be provided)
ENV PORT=7860
CMD ["gunicorn", "-b", "0.0.0.0:${PORT}", "api:app", "--workers", "4", "--threads", "8", "--timeout", "180"]