One controller inside of vm on the cluster

We’re trying out opennebula as alternative to VMware.
We have 2 physical nodes+NFS share and opennebula controller in vm on VMware.
We are planning RACK movement, so servers will be turned off.

I have 2 questions:

  1. how do i migrate opennebula controller from outside into the cluster?
  2. How do I start vm controller from the node itself?

Versions of the related components and OS (frontend, hypervisors, VMs):
Debian x64, OpenNebula 5.4.6

Steps to reproduce:

Current results:

Expected results:

found a way, thank you