STX-Openstack | VM fails to live migrate after host is rebooted

[Gabriel Calixto de Paula]

Brief Description
-----------------
During a sanity run with STX debian latest_build with STX-Openstack, the evacuate VMs test is failing because after one of the hosts is rebooted, the VMs are evacuated to the other host, when the host is back online, the VM fails to live-migrate back to the original host.

Severity
--------
Minor

Steps to Reproduce
------------------
1.Create vms with various options:
                1.1 vm booted from cinder volume,
                1.2 vm booted from glance image,
                1.3 vm booted from glance image, and have an extra cinder volume
                attached after launch,
                1.4 vm booted from cinder volume with ephemeral and swap disks
2. Move vms onto same hypervisor
3. Power off the host
4. Ensure vms are successfully evacuated to other host
5. Power on original vms host
6. Live migrate vms back to original host
Expected Behavior
------------------
The vms should live migrate to the original host

Actual Behavior
----------------
The VMs don't live migrate to the original host

Reproducibility
---------------
Reproducible

System Configuration
--------------------
Two-node system with 4 platform-assigned cores
STX 8.0 2023-02-19 07:00:01 +0000
STX-Openstack 2023-02-19 19:17:50 +0000

Test Activity
-------------
Sanity

Timestamp/Logs
-------------

+----+--------------------------------------+--------------+--------------+----------------+--------------+---------------+-----------+--------------------------------------+------------+------------+----------------------------+----------------------------+----------------+----------------------------------+----------------------------------+
| Id | UUID | Source Node | Dest Node | Source Compute | Dest Compute | Dest Host | Status | Instance UUID | Old Flavor | New Flavor | Created At | Updated At | Type | Project ID | User ID |
+----+--------------------------------------+--------------+--------------+----------------+--------------+---------------+-----------+--------------------------------------+------------+------------+----------------------------+----------------------------+----------------+----------------------------------+----------------------------------+
| 25 | af28a81a-489d-4c4a-a0b5-4388dcebedef | - | - | controller-1 | - | - | error | cd2b9fd3-70fd-43f7-b8cc-0a51593d93f5 | 64 | 64 | 2023-02-21T14:30:18.000000 | 2023-02-21T14:30:23.000000 | live-migration | ce3df0c9c87746339afbdd96d76cd8e6 | 8fe60ff446ca46339a1b0ecfc4fbbe1e |