Ok, thanks.
The appliance was already installed but vdsm-gluster was indeed missing.
So currently before deployment I executed on CentOS host (initially installed choosing "server" option):
yum update
yum update
yum install cockpit-ovirt-dashboard gluster-ansible-roles glusterfs-server vdsm-gluster
systemctl enable --now cockpit.socket
reboot
Is there a list of all what is needed for this test lab single host HCI with gluster? Anything else?
And what is the safe way to clean up before retrying deploy?
Thanks,
Gianluca