nova-compute on noble blocked due to libvirtd not started

[Peter Sabaini]

In CI I could see nova-compute remaining blocked:

nova-compute/0* blocked idle 11 172.16.0.159 Services not running that should be: libvirtd

In the crashdump libvirtd.service seems to get deactivated:

2024-07-03T14:22:26.210583+00:00 juju-299bc3-zaza-0085f7273275-11 systemd[1]: Starting libvirtd.service - libvirt legacy monolithic daemon...
2024-07-03T14:22:26.247688+00:00 juju-299bc3-zaza-0085f7273275-11 systemd[1]: Started libvirtd.service - libvirt legacy monolithic daemon.
2024-07-03T14:23:33.572277+00:00 juju-299bc3-zaza-0085f7273275-11 systemd[1]: Stopping libvirtd.service - libvirt legacy monolithic daemon...
2024-07-03T14:23:33.578356+00:00 juju-299bc3-zaza-0085f7273275-11 systemd[1]: libvirtd.service: Deactivated successfully.
2024-07-03T14:23:33.578562+00:00 juju-299bc3-zaza-0085f7273275-11 systemd[1]: Stopped libvirtd.service - libvirt legacy monolithic daemon.

Also can see juju tracebacks in unit-nova-compute-0.log:

2024-07-03 15:21:16.749 46512 CRITICAL nova [None req-a64998e1-8549-412b-9a21-3607665f9307 - - - - - -] Unhandled error: keystoneauth1.exceptions.auth_plugins.MissingAuthPlugin: An auth plugin is required to determine endpoint URL
2024-07-03 15:21:16.749 46512 ERROR nova Traceback (most recent call last):
2024-07-03 15:21:16.749 46512 ERROR nova File "/usr/bin/nova-compute", line 10, in <module>
2024-07-03 15:21:16.749 46512 ERROR nova sys.exit(main())
2024-07-03 15:21:16.749 46512 ERROR nova ^^^^^^
2024-07-03 15:21:16.749 46512 ERROR nova File "/usr/lib/python3/dist-packages/nova/cmd/compute.py", line 59, in main
2024-07-03 15:21:16.749 46512 ERROR nova server = service.Service.create(binary='nova-compute',
2024-07-03 15:21:16.749 46512 ERROR nova ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2024-07-03 15:21:16.749 46512 ERROR nova File "/usr/lib/python3/dist-packages/nova/service.py", line 252, in create
2024-07-03 15:21:16.749 46512 ERROR nova service_obj = cls(host, binary, topic, manager,
2024-07-03 15:21:16.749 46512 ERROR nova ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2024-07-03 15:21:16.749 46512 ERROR nova File "/usr/lib/python3/dist-packages/nova/service.py", line 116, in __init__
2024-07-03 15:21:16.749 46512 ERROR nova self.manager = manager_class(host=self.host, *args, **kwargs)
2024-07-03 15:21:16.749 46512 ERROR nova ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2024-07-03 15:21:16.749 46512 ERROR nova File "/usr/lib/python3/dist-packages/nova/compute/manager.py", line 633, in __init__
2024-07-03 15:21:16.749 46512 ERROR nova self.reportclient = report.SchedulerReportClient()
2024-07-03 15:21:16.749 46512 ERROR nova ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2024-07-03 15:21:16.749 46512 ERROR nova File "/usr/lib/python3/dist-packages/nova/scheduler/client/report.py", line 234, in __init__
2024-07-03 15:21:16.749 46512 ERROR nova self._client = self._create_client()
2024-07-03 15:21:16.749 46512 ERROR nova ^^^^^^^^^^^^^^^^^^^^^
2024-07-03 15:21:16.749 46512 ERROR nova File "/usr/lib/python3/dist-packages/nova/scheduler/client/report.py", line 277, in _create_client
2024-07-03 15:21:16.749 46512 ERROR nova client = self._adapter or utils.get_sdk_adapter('placement')
2024-07-03 15:21:16.749 46512 ERROR nova ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2024-07-03 15:21:16.749 46512 ERROR nova File "/usr/lib/python3/dist-packages/nova/utils.py", line 995, in get_sdk_adapter
2024-07-03 15:21:16.749 46512 ERROR nova return getattr(conn, service_type)
2024-07-03 15:21:16.749 46512 ERROR nova ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2024-07-03 15:21:16.749 46512 ERROR nova File "/usr/lib/python3/dist-packages/openstack/service_description.py", line 89, in __get__
2024-07-03 15:21:16.749 46512 ERROR nova proxy = self._make_proxy(instance)
2024-07-03 15:21:16.749 46512 ERROR nova ^^^^^^^^^^^^^^^^^^^^^^^^^^
2024-07-03 15:21:16.749 46512 ERROR nova File "/usr/lib/python3/dist-packages/openstack/service_description.py", line 289, in _make_proxy
2024-07-03 15:21:16.749 46512 ERROR nova found_version = temp_adapter.get_api_major_version()
2024-07-03 15:21:16.749 46512 ERROR nova ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2024-07-03 15:21:16.749 46512 ERROR nova File "/usr/lib/python3/dist-packages/keystoneauth1/adapter.py", line 352, in get_api_major_version
2024-07-03 15:21:16.749 46512 ERROR nova return self.session.get_api_major_version(auth or self.auth, **kwargs)
2024-07-03 15:21:16.749 46512 ERROR nova ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2024-07-03 15:21:16.749 46512 ERROR nova File "/usr/lib/python3/dist-packages/keystoneauth1/session.py", line 1288, in get_api_major_version
2024-07-03 15:21:16.749 46512 ERROR nova auth = self._auth_required(auth, 'determine endpoint URL')
2024-07-03 15:21:16.749 46512 ERROR nova ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2024-07-03 15:21:16.749 46512 ERROR nova File "/usr/lib/python3/dist-packages/keystoneauth1/session.py", line 1194, in _auth_required
2024-07-03 15:21:16.749 46512 ERROR nova raise exceptions.MissingAuthPlugin(msg_fmt % msg)
2024-07-03 15:21:16.749 46512 ERROR nova keystoneauth1.exceptions.auth_plugins.MissingAuthPlugin: An auth plugin is required to determine endpoint URL
2024-07-03 15:21:16.749 46512 ERROR nova

Version nova-compute 29.0.1 from latest/edge, rev 742
Running on ubuntu@24.04

CI Artefacts:
https://openstack-ci-reports.ubuntu.com/artifacts/717/923361/4/check/noble-caracal/717dbca/index.html