centos-7 train jobs are failing to find variables for OS - os-tempest

[Ronelle Landy]

openstack-periodic-integration-stable3-centos7 jobs are failing the task:

2020-10-19 12:28:01.345911 | primary | TASK [os_tempest : Gather variables for each operating system] *****************
2020-10-19 12:28:01.346028 | primary | Monday 19 October 2020 12:28:01 +0000 (0:00:00.986) 0:33:10.560 ********
2020-10-19 12:28:01.396607 | primary | fatal: [undercloud]: FAILED! => {}
2020-10-19 12:28:01.396745 | primary |
2020-10-19 12:28:01.396790 | primary | MSG:
2020-10-19 12:28:01.396821 | primary |
2020-10-19 12:28:01.397027 | primary | No file was found when using first_found. Use errors='ignore' to allow this task to be skipped if no files are found

The task comes from:
https://github.com/openstack/openstack-ansible-os_tempest/blob/stable/train/tasks/main.yml#L16

Example logs:

https://logserver.rdoproject.org/openstack-periodic-integration-stable3-centos7/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-7-standalone-train/a5a9e8e/job-output.txt

https://logserver.rdoproject.org/openstack-periodic-integration-stable3-centos7/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-7-multinode-1ctlr-featureset030-train/2105cc6/job-output.txt

[Dmitriy Rabotyagov (noonedeadpunk)]

Frankly speaking, I'd rather use branched os_tempest role for stable releases, since in master there might be breaking changes anyway. And even stable/train os_tempest role may install master tempest package

[Ronelle Landy (rlandy)]

https://review.opendev.org/#/c/758823/

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/openstack-ansible-os_tempest yoga-eom release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/openstack-ansible-os_tempest victoria-eom release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/openstack-ansible-os_tempest wallaby-eom release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/openstack-ansible-os_tempest xena-eom release.