FROM python:3.12.12 AS builder

ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1
WORKDIR /app


RUN python -m venv .venv
COPY requirements.txt ./
RUN .venv/bin/pip install -r requirements.txt

FROM python:3.12.12-slim
WORKDIR /app

# Native libs required by xgboost / scikit-learn wheels
RUN apt-get update \
    && apt-get install -y --no-install-recommends libgomp1 libopenblas0-pthread \
    && rm -rf /var/lib/apt/lists/*

COPY --from=builder /app/.venv .venv/
COPY . .
CMD ["/app/.venv/bin/uvicorn", "api.app:app", "--host", "0.0.0.0", "--port", "7860"]