# ========== Stage 1: extract sing-box binary ========== FROM ghcr.io/sagernet/sing-box:latest AS sb-bin # ========== Stage 2: slim Python runtime + entrypoint.py ========== FROM python:3.13-slim RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates && rm -rf /var/lib/apt/lists/* COPY --from=sb-bin /usr/local/bin/sing-box /usr/local/bin/sing-box RUN chmod +x /usr/local/bin/sing-box WORKDIR /src COPY . . ENTRYPOINT ["python3", "entrypoint.py"]