tripleo-ci-centos-8-scenario004-standalone is continuously failing in stable/ussuri

[Takashi Kajinami]

Found in
 https://review.opendev.org/c/openstack/tripleo-heat-templates/+/800020/
and
 https://review.opendev.org/c/openstack/tripleo-heat-templates/+/797088/

Currently the tripleo-ci-centos-8-scenario004-standalone job is continuously failing because of failures in Manila tempest job.

https://be00154228f9e7ca60f1-c6cd00e15301f9cbec535c910ea1d6bc.ssl.cf1.rackcdn.com/797088/5/check/tripleo-ci-centos-8-scenario004-standalone/93dfc7b/logs/undercloud/var/log/tempest/tempest_run.log
```
==============================
Failed 1 tests - output below:
==============================

setUpClass (manila_tempest_tests.tests.api.test_shares.SharesNFSTest)
---------------------------------------------------------------------

Captured traceback:
~~~~~~~~~~~~~~~~~~~
    Traceback (most recent call last):
      File "/usr/lib/python3.6/site-packages/tempest/test.py", line 182, in setUpClass
        six.reraise(etype, value, trace)
      File "/usr/lib/python3.6/site-packages/six.py", line 703, in reraise
        raise value
      File "/usr/lib/python3.6/site-packages/tempest/test.py", line 175, in setUpClass
        cls.resource_setup()
      File "/usr/lib/python3.6/site-packages/manila_tempest_tests/tests/api/test_shares.py", line 47, in resource_setup
        share_type_id=cls.share_type_id)
      File "/usr/lib/python3.6/site-packages/manila_tempest_tests/tests/api/base.py", line 414, in create_share
        result = cls.create_shares([{"args": args, "kwargs": kwargs}])
      File "/usr/lib/python3.6/site-packages/manila_tempest_tests/tests/api/base.py", line 473, in create_shares
        client, share_id, "available")
      File "/usr/lib/python3.6/site-packages/manila_tempest_tests/common/waiters.py", line 105, in wait_for_resource_status
        raise exceptions.TimeoutException(message)
    tempest.lib.exceptions.TimeoutException: Request timed out
    Details: share c3c033e2-a7fa-4968-889d-b9a5bc41b648 failed to reach available status (current creating) within the required time (500 s).
```

I checked manila-share.log but could not find any specific error related to this share.

[Takashi Kajinami (kajinamit)]

Now testing the job in https://review.opendev.org/c/openstack/tripleo-heat-templates/+/800460

[Takashi Kajinami (kajinamit)]

It again failed in the following commit without any logic change.
 https://review.opendev.org/c/openstack/tripleo-heat-templates/+/800460