Remember to log in to appropriate lab machines before starting with the steps:
rhs-vm-16.gdev.lab.eng.rdu2.redhat.com(debian 9 strech)
rhs-vm-17.gdev.lab.eng.rdu2.redhat.com (ubuntu 18.04), (bionic, xenial) eoan, disco-reched, groovy eol (present in the doc for historic reference)
All the packages can be built on rhs-vm-08 including bionic and xenial from 9 series:
rhs-vm-06.gdev.lab.eng.rdu2.redhat.com - for JAMMY and KINETIC
rhs-vm-08.gdev.lab.eng.rdu2.redhat.com (new ubuntu machines jammy of release 9, focal, hirsute, impish for io-uring, and other updates- glusterfs 9 onwards)