Comment 2 for bug 1981459

In the past we executed cell discovery in compute nodes but we migrated it to controller nodes when we've removed database options from nova.conf in compute nodes, based on suggestion and request from Nova folks to "remove any credential which is not necessary".

To overcome this we need to somehow trigger the command in controller nodes which are managed by the central stack or give a flag to workaround the error then let users to run the command manually after the deployment.