Hi
removed ENV DBUS_SYSTEM_BUS_ADDRESS=unix:path=/host/run/dbus/system_bus_socket
and still systemctl is not functional.
Fixed the issue of isc-dhcp-server
by staring it via \etc\init.d
and you are right we don’t really need to restart networking.
In the following post,cyplo, mentioned it might be because of not using base image.