Try to install latest rally-openstack package (i.e. 2.2.0). The broken ceilomentclient package is removed there - https://github.com/openstack/rally-openstack/blob/master/CHANGELOG.rst#220---2021-10-25
Try to install latest rally-openstack package (i.e. 2.2.0). The broken ceilomentclient package is removed there - https:/ /github. com/openstack/ rally-openstack /blob/master/ CHANGELOG. rst#220- --2021- 10-25