[OpenStack] [Nova] Is there a simple workflow to perform an automated migration of instance and reboot of the compute nodes after the OpenStack upgrade?

Solution Unverified - Updated -

Issue

  • After the OpenStack environment upgrade, have to reboot the compute nodes as the process thus required to live migrate the instances to other compute nodes
  • Is there way to automate this process without the downtime required for instances?

Environment

  • Red Hat OpenStack Platform

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