FROM python:3.11-slim

RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

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

ENV PORT=7860
ENV HOST=0.0.0.0
CMD exec gunicorn --bind 0.0.0.0:${PORT} --workers 2 --threads 4 --timeout 120 app:app