FROM ubuntu:22.04 LABEL org.opencontainers.image.authors="Robin Smidsrød <robin@smidsrod.no>" ARG DEBIAN_FRONTEND=noninteractive RUN yes | unminimize RUN apt-get -q -y update \ && apt-get -q -y -o "DPkg::Options::=--force-confold" -o "DPkg::Options::=--force-confdef" install \ apt-utils dumb-init isc-dhcp-server-ldap man \ && apt-get -q -y autoremove \ && apt-get -q -y clean \ && rm -rf /var/lib/apt/lists/* ENV DHCPD_PROTOCOL=4 COPY util/entrypoint.sh /entrypoint.sh ENTRYPOINT ["/entrypoint.sh"]