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 install cockpit-ovirt-dashboard gluster-ansible-roles glusterfs-server vdsm-gluster
systemctl enable --now cockpit.socket
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?