gate (featureset001-master) failures "The conditional check 'tripleo_role_name == 'Controller'' failed. The error was: error while evaluating conditional (tripleo_role_name == 'Controller'): 'tripleo_role_name' is undefined"

[Matt Young]

this could be a dup of https://bugs.launchpad.net/bugs/1771997, capturing gate failures (observed) here.

Seeing a number of instances of gate failures this afternoon

* https://logs.rdoproject.org/19/567819/3/openstack-check/gate-tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset001-master/Z559fba707816429ea561b9683f4c008b/undercloud/home/jenkins/overcloud_deploy.log.txt.gz

* https://logs.rdoproject.org/45/569345/1/openstack-check/gate-tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset001-master/Zb696905d77874900ab84773736add842/undercloud/home/jenkins/overcloud_deploy.log.txt.gz

* https://logs.rdoproject.org/35/564135/15/openstack-check/gate-tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset001-master/Z4aafdc30fbcd41da94a0a815d0c5c43d/undercloud/home/jenkins/overcloud_deploy.log.txt.gz

All seem to have the same pattern...

(from overcloud-deploy.log)

```
fatal: [overcloud-controller-2]: FAILED! => {"msg": "The conditional check 'tripleo_role_name == 'Controller'' failed. The error was: error while evaluating conditional (tripleo_role_name == 'Controller'): 'tripleo_role_name' is undefined

The error appears to have been in '/var/lib/mistral/62b74ae6-240a-48c4-bd2c-1e4bb0a6299c/Controller/host_prep_tasks.yaml': line 1, column 3, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:

- file:
  ^ here
"}
```

That file is https://logs.rdoproject.org/35/564135/15/openstack-check/gate-tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset001-master/Z4aafdc30fbcd41da94a0a815d0c5c43d/undercloud/var/lib/mistral/62b74ae6-240a-48c4-bd2c-1e4bb0a6299c/Controller/host_prep_tasks.yaml.txt.gz

Still not entirely clear what's going on...but at third instance of a failed gate capturing observed failures

[Emilien Macchi (emilienm)]

You should see the problem in check pipeline of OVB because we haven't got a promotion yet where mistral containers has latest tripleo-common with new Ansible variable.
We need a promotion to close this bug.

See https://review.openstack.org/#/q/topic:bug/1771171 and https://bugs.launchpad.net/tripleo/+bug/1771171 for more context

[Matt Young (halcyondude)]

Thanks for detail. Removing alert.

[wes hayutin (weshayutin)]

https://review.rdoproject.org/jenkins/job/periodic-tripleo-ci-centos-7-ovb-3ctlr_1comp-featureset001-master/

this job is working again. Thanks Emilien