FROM debian:buster-slim LABEL maintainer="ethitter" LABEL version="1.0" RUN echo "deb http://security.debian.org/ buster/updates main" >> /etc/apt/sources.list RUN apt-get update \ && apt-get -y --no-install-recommends install \ nut=2.7.4-8 \ && apt-get autoremove -y \ && apt-get clean \ && rm -rf /var/lib/apt/lists/* EXPOSE 3493 COPY entrypoint /usr/local/bin/ ENTRYPOINT ["entrypoint"]