[10.0] [smoke_neutron] Deploy cluster in ha mode with 1 controller and Neutron VXLAN failed

[Kyrylo Romanenko]

Failed test: Deploy cluster in ha mode with 1 controller and Neutron VXLAN

Test has failed on step 5:
        Scenario:
            1. Create cluster
            2. Add 1 node with controller role
            3. Add 2 nodes with compute role
            4. Run network verification
            5. Deploy the cluster
            6. Run network verification
            7. Run OSTF

AssertionError: Task 'deploy' has incorrect status. error != ready, 'Deployment has failed.
AssertionError: Task 'deploy' has incorrect status. error != ready, 'Deployment has failed. All nodes are finished. Failed tasks: Task[openstack-network-compute-nova/1] Stopping the deployment process!'

Failed job link: https://product-ci.infra.mirantis.net/job/10.0.main.ubuntu.smoke_neutron/1213/
Traceback: http://paste.openstack.org/show/597000/

Diagnostic Snapshot link: https://drive.google.com/a/mirantis.com/file/d/0B6E70aHvCcRQQmFPN0pjVW9xMVk/view?usp=sharing

[Oleksiy Molchanov (omolchanov)]

We need env to debug, please provide it as soon as reproduced.