Public bug reported:

Reported at: https://bugzilla.redhat.com/show_bug.cgi?id=2008425


As part of the ovs2ovn migration process, some workload is created before the 
migration begins. The intention is to verify that those workloads are healthy 
after the migration.
The script that creates those workloads checks they are pingable and ssh'able. 
Sometimes the ssh fails because the created VMs did not get the public keys 
during the cloud-init phase:
+ ssh -i 
/home/stack/ovn_migration/pre_migration_resources/ovn_migration_ssh_key -o 
StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null [email protected] date
Warning: Permanently added '10.0.0.243' (ECDSA) to the list of known hosts.
Permission denied, please try again.
Permission denied, please try again.
[email protected]: Permission denied (publickey,password).
+ rc=255
+ echo 'Done with the resource creation : exiting with 255'
Done with the resource creation : exiting with 255
+ exit 255


It seems the issue is related to a problem in cirros 0.4.0, which was resolved 
in a later release of cirros:
https://github.com/cirros-dev/cirros/pull/11/commits/e40bcd2964aa496a9d03e1aaf95cf7a86938f129
So, using cirros 0.5.2 could stabilize this script.


This script can be found in two different formats:
https://opendev.org/openstack/neutron/src/branch/master/tools/ovn_migration/tripleo_environment/playbooks/roles/resources/create/templates/create-resources.sh.j2
https://opendev.org/openstack/neutron/src/branch/master/tools/ovn_migration/infrared/tripleo-ovn-migration/roles/create-resources/templates/create-resources.sh.j2

** Affects: neutron
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1945299

Title:
  ovn migration create-resources is not stable

Status in neutron:
  New

Bug description:
  Reported at: https://bugzilla.redhat.com/show_bug.cgi?id=2008425


  As part of the ovs2ovn migration process, some workload is created before the 
migration begins. The intention is to verify that those workloads are healthy 
after the migration.
  The script that creates those workloads checks they are pingable and 
ssh'able. Sometimes the ssh fails because the created VMs did not get the 
public keys during the cloud-init phase:
  + ssh -i 
/home/stack/ovn_migration/pre_migration_resources/ovn_migration_ssh_key -o 
StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null [email protected] date
  Warning: Permanently added '10.0.0.243' (ECDSA) to the list of known hosts.
  Permission denied, please try again.
  Permission denied, please try again.
  [email protected]: Permission denied (publickey,password).
  + rc=255
  + echo 'Done with the resource creation : exiting with 255'
  Done with the resource creation : exiting with 255
  + exit 255

  
  It seems the issue is related to a problem in cirros 0.4.0, which was 
resolved in a later release of cirros:
  
https://github.com/cirros-dev/cirros/pull/11/commits/e40bcd2964aa496a9d03e1aaf95cf7a86938f129
  So, using cirros 0.5.2 could stabilize this script.

  
  This script can be found in two different formats:
  
https://opendev.org/openstack/neutron/src/branch/master/tools/ovn_migration/tripleo_environment/playbooks/roles/resources/create/templates/create-resources.sh.j2
  
https://opendev.org/openstack/neutron/src/branch/master/tools/ovn_migration/infrared/tripleo-ovn-migration/roles/create-resources/templates/create-resources.sh.j2

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