Openstack hypervisor list is empty

Hello Team, I have deployed Openstack Victoria using Kolla-ansible on Ubuntu 20.04 and ceph as the backend storage for Nova, Cinder and Glance. It finished with no error but it has failed to register any on the Compute Nodes under Hypervisors. kolla-openstack) stack@deployment:~$ openstack hypervisor list (kolla-openstack) stack@deployment:~$ Any idea on how to resolve this ? Regards Tony Karera