https://docs.redhat.com/en/documentation/red_hat_openstack_services_on_openshift/18.0/html/adopting_a_red_hat_openstack_platform_17.1_deployment/adopting-data-plane_adopt-control-plane#adopting-compute-services-to-the-data-plane_data-plane

In the 3rd point of 5.2, it is written that LibvirtTLSPassword must be set in a secret only if tls-e has been deployed on RHOSP 17.1.
But according to enginer team, it seems that it must be set in every case.