Neutron DB expand task delegation+run_once failure

[Logan V]

23:36:45 TASK [os_neutron : Perform a DB expand] ****************************************
23:36:45 Wednesday 05 July 2017 23:36:45 +0000 (0:00:01.058) 0:07:09.786 ********
23:36:46 fatal: [aio1 -> 172.29.236.54]: FAILED! => {"changed": false, "cmd": "/openstack/venvs/neutron-untagged/bin/neutron-db-manage upgrade --expand", "failed": true, "msg": "[Errno 2] No such file or directory", "rc": 2}

How to interpret the output:
My neutron_server containers use tagged venvs as per normal OSA. My compute hosts use a static venv tag "untagged". What's happening here is the task is running against the aio1 (neutron_bin contains "untagged" venv path) but delegated to neutron_server where the venv path is "tagged" like a normal OSA tag.

Maybe it is more appropriate for this task to only run with a "when: 'neutron_server' in group_names" instead of the run_once + delegate it has now?

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/480772

[OpenStack Infra (hudson-openstack)]

Change abandoned by Logan V (<email address hidden>) on branch: master
Review: https://review.openstack.org/480772

[James Denton (james-denton)]

Neutron DB code updated, not OSA bug. User verified it's all good.