[focal][ussuri] ERROR: test_cephfs_share (zaza.openstack.charm_tests.ceph.fs.tests.CephFSTests) - Test that CephFS shares can be accessed on two instances

During 20.08 charm libs sync and rebuild:

2020-07-29 12:53:04 [INFO] ======================================================================
2020-07-29 12:53:04 [INFO] ERROR: test_cephfs_share (zaza.openstack.charm_tests.ceph.fs.tests.CephFSTests)
2020-07-29 12:53:04 [INFO] Test that CephFS shares can be accessed on two instances.
2020-07-29 12:53:04 [INFO] ----------------------------------------------------------------------
2020-07-29 12:53:04 [INFO] Traceback (most recent call last):
2020-07-29 12:53:04 [INFO] File "/tmp/tmp.H2KyHDEhuC/func/lib/python3.5/site-packages/zaza/openstack/charm_tests/ceph/fs/tests.py", line 90, in test_cephfs_share
2020-07-29 12:53:04 [INFO] password=password, privkey=privkey, verify=verify_setup)
2020-07-29 12:53:04 [INFO] File "/tmp/tmp.H2KyHDEhuC/func/lib/python3.5/site-packages/zaza/openstack/utilities/openstack.py", line 2428, in ssh_command
2020-07-29 12:53:04 [INFO] raise(e)
2020-07-29 12:53:04 [INFO] File "/tmp/tmp.H2KyHDEhuC/func/lib/python3.5/site-packages/zaza/openstack/utilities/openstack.py", line 2426, in ssh_command
2020-07-29 12:53:04 [INFO] verify(stdin, stdout, stderr)
2020-07-29 12:53:04 [INFO] File "/tmp/tmp.H2KyHDEhuC/func/lib/python3.5/site-packages/zaza/openstack/charm_tests/ceph/fs/tests.py", line 74, in verify_setup
2020-07-29 12:53:04 [INFO] self.assertEqual(status, 0)
2020-07-29 12:53:04 [INFO] File "/usr/lib/python3.5/unittest/case.py", line 820, in assertEqual
2020-07-29 12:53:04 [INFO] assertion_func(first, second, msg=msg)
2020-07-29 12:53:04 [INFO] File "/usr/lib/python3.5/unittest/case.py", line 813, in _baseAssertEqual
2020-07-29 12:53:04 [INFO] raise self.failureException(msg)
2020-07-29 12:53:04 [INFO] AssertionError: 32 != 0
2020-07-29 12:53:04 [INFO] The above exception was the direct cause of the following exception:
2020-07-29 12:53:04 [INFO] Traceback (most recent call last):
2020-07-29 12:53:04 [INFO] File "/tmp/tmp.H2KyHDEhuC/func/lib/python3.5/site-packages/zaza/openstack/charm_tests/ceph/fs/tests.py", line 84, in test_cephfs_share
2020-07-29 12:53:04 [INFO] wait=wait_exponential(multiplier=1, min=2, max=10)):
2020-07-29 12:53:04 [INFO] File "/tmp/tmp.H2KyHDEhuC/func/lib/python3.5/site-packages/tenacity/__init__.py", line 390, in __iter__
2020-07-29 12:53:04 [INFO] do = self.iter(retry_state=retry_state)
2020-07-29 12:53:04 [INFO] File "/tmp/tmp.H2KyHDEhuC/func/lib/python3.5/site-packages/tenacity/__init__.py", line 369, in iter
2020-07-29 12:53:04 [INFO] six.raise_from(retry_exc, fut.exception())
2020-07-29 12:53:04 [INFO] File "<string>", line 3, in raise_from
2020-07-29 12:53:04 [INFO] tenacity.RetryError: RetryError[<Future at 0x7f7391bffac8 state=finished raised AssertionError>]
2020-07-29 12:53:04 [INFO] ----------------------------------------------------------------------
2020-07-29 12:53:04 [INFO] Ran 1 test in 1039.246s
2020-07-29 12:53:04 [INFO] FAILED

https://review.opendev.org/#/c/743337/