juju.errors.JujuError: ['no actions defined on charm "local:focal/ceilometer-agent-0"']

[freyes]

patch where this issue was seen: https://review.opendev.org/c/openstack/charm-ceilometer-agent/+/841897
ci run: https://openstack-ci-reports.ubuntu.com/artifacts/902/841897/4/check/focal-wallaby/902528c/

2022-06-01 20:50:29 [INFO] ======================================================================
2022-06-01 20:50:29 [INFO] ERROR: test_901_pause_resume (zaza.openstack.charm_tests.ceilometer.tests.CeilometerTest)
2022-06-01 20:50:29 [INFO] Run pause and resume tests.
2022-06-01 20:50:29 [INFO] ----------------------------------------------------------------------
2022-06-01 20:50:29 [INFO] Traceback (most recent call last):
2022-06-01 20:50:29 [INFO]   File "/home/ubuntu/src/review.opendev.org/openstack/charm-ceilometer-agent/.tox/func-target/lib/python3.8/site-packages/zaza/openstack/charm_tests/ceilometer/tests.py", line 163, in test_901_pause_resume
2022-06-01 20:50:29 [INFO]     with self.pause_resume(self.restartable_services):
2022-06-01 20:50:29 [INFO]   File "/usr/lib/python3.8/contextlib.py", line 113, in __enter__
2022-06-01 20:50:29 [INFO]     return next(self.gen)
2022-06-01 20:50:29 [INFO]   File "/home/ubuntu/src/review.opendev.org/openstack/charm-ceilometer-agent/.tox/func-target/lib/python3.8/site-packages/zaza/openstack/charm_tests/test_utils.py", line 500, in pause_resume
2022-06-01 20:50:29 [INFO]     generic_utils.assertActionRanOK(model.run_action(
2022-06-01 20:50:29 [INFO]   File "/home/ubuntu/src/review.opendev.org/openstack/charm-ceilometer-agent/.tox/func-target/lib/python3.8/site-packages/zaza/__init__.py", line 48, in _wrapper
2022-06-01 20:50:29 [INFO]     return run(_run_it())
2022-06-01 20:50:29 [INFO]   File "/home/ubuntu/src/review.opendev.org/openstack/charm-ceilometer-agent/.tox/func-target/lib/python3.8/site-packages/zaza/__init__.py", line 36, in run
2022-06-01 20:50:29 [INFO]     return task.result()
2022-06-01 20:50:29 [INFO]   File "/home/ubuntu/src/review.opendev.org/openstack/charm-ceilometer-agent/.tox/func-target/lib/python3.8/site-packages/zaza/__init__.py", line 47, in _run_it
2022-06-01 20:50:29 [INFO]     return await f(*args, **kwargs)
2022-06-01 20:50:29 [INFO]   File "/home/ubuntu/src/review.opendev.org/openstack/charm-ceilometer-agent/.tox/func-target/lib/python3.8/site-packages/zaza/model.py", line 949, in async_run_action
2022-06-01 20:50:29 [INFO]     action_obj = await unit.run_action(action_name, **action_params)
2022-06-01 20:50:29 [INFO]   File "/home/ubuntu/src/review.opendev.org/openstack/charm-ceilometer-agent/.tox/func-target/lib/python3.8/site-packages/juju/unit.py", line 166, in run_action
2022-06-01 20:50:29 [INFO]     res = await action_facade.Enqueue(actions=[client.Action(
2022-06-01 20:50:29 [INFO]   File "/home/ubuntu/src/review.opendev.org/openstack/charm-ceilometer-agent/.tox/func-target/lib/python3.8/site-packages/juju/client/facade.py", line 482, in wrapper
2022-06-01 20:50:29 [INFO]     reply = await f(*args, **kwargs)
2022-06-01 20:50:29 [INFO]   File "/home/ubuntu/src/review.opendev.org/openstack/charm-ceilometer-agent/.tox/func-target/lib/python3.8/site-packages/juju/client/_client2.py", line 244, in Enqueue
2022-06-01 20:50:29 [INFO]     reply = await self.rpc(msg)
2022-06-01 20:50:29 [INFO]   File "/home/ubuntu/src/review.opendev.org/openstack/charm-ceilometer-agent/.tox/func-target/lib/python3.8/site-packages/juju/client/facade.py", line 655, in rpc
2022-06-01 20:50:29 [INFO]     result = await self.connection.rpc(msg, encoder=TypeEncoder)
2022-06-01 20:50:29 [INFO]   File "/home/ubuntu/src/review.opendev.org/openstack/charm-ceilometer-agent/.tox/func-target/lib/python3.8/site-packages/juju/client/connection.py", line 644, in rpc
2022-06-01 20:50:29 [INFO]     raise errors.JujuError(err_results)
2022-06-01 20:50:29 [INFO] juju.errors.JujuError: ['no actions defined on charm "local:focal/ceilometer-agent-0"']
2022-06-01 20:50:29 [INFO] ----------------------------------------------------------------------