ad failed to bind to domain error message
In the event we have configured only the active controller to be joined to the domain, the passive controller will create a file in /tmp/ named ".adalert" because the passive controller has been configured to not join the domain. (This is expected behavior in this scenario)
On failover, the passive controller doesn't remove that file even though it successfully joins the domain so the alert in the webUI is false.
This ticket is to fix that behavior.