As conadm in one of the CentOS virtual machines, do the following:

$1.$ Use either the cont$-$adv container from the lab above, or create and launch a new container

$2.$ Use this container as a template and generate a systemd service configuration file and store the file in the appropriate directory to run it as a root service

$3.$ Stop and remove the source container you used as a template $($assumed to be cont$-$adv in these instructions$)$

$4.$ Add the new service to systemd and enable the service to auto$-$start at system reboots

$5.$ Reboot your virtual machine and confirm a successful start of the container service and the container