FROM python:3.12-slim

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

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

COPY server.py jlens_l18_qwen3-4b.pt .

EXPOSE 8000
ENV CHAMBER_DEVICE=cpu CHAMBER_DTYPE=bfloat16 CHAMBER_LAYER=18
CMD ["sh", "-c", "uvicorn server:app --host 0.0.0.0 --port ${PORT:-8000}"]