Created attachment 1507272 [details]
ovn migration

Description of problem:
If we are running OVN migration after that pre-migration resources were created in previous  it will create conflicts between the current run and the previous 
 9) (Request-ID: req-7aed8979-4091-42e2-aeec-1a901b2f5e2c)\n+ openstack router create ovn-migration-router-pre\n+ openstack router set --external-gateway public ovn-migration-router-pre\nMore than one Router exists with the name 'ovn-migration-router-pre'.\n+ openstack router add subnet ovn-migration-router-pre ovn-migration-subnet-pre\nMore than one Router exists with the name 'ovn-migration-router-pre'.\n++ openstack floating ip create --port
 ovn-migration-server-port-pre public -c floating_ip_address\n++ grep floating_ip_address\n++ awk '{print $4}'\nError while executing command: ConflictException: 409, {\"NeutronError\": {\"message\": \"Cannot associate floating IP 10.0.0.235 (3717e29a-e9e1-4b53-9da5-a07e4be4ef9c) with port 7a44095a-6153-4fb8-9de7-93077e8104f7 using fixed IP 172.168.199.6, as that fixed IP already has a floating IP on external network f6855347-fe63-4ff8-9c61-0d09
559d6b0a.\", \"type\": \"FloatingIPPortAlreadyAssociated\", \"detail\": \"\"}}\n+ server_ip=\n+ echo\n+ chmod 0600 /home/stack/ovn_migration/pre_migration_resources/ovn_migration_ssh_key\nchmod: cannot access '/home/stack/ovn_migration/pre_migratio

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.run ovn_migration.sh start-migration  when export VALIDATE_MIGRATION=True
make sure it will be failed
2. after it failed run it again 
3.

Actual results:


Expected results:


Additional info: