Hi, I've been validating Yoga -> Antelope on our preprod cloud. It was working successfully but "suddenly" (i.e. without a kwown/identified change!) when deleting Magnum clusters, the deletion of Barbican secrets (after stack deletion) fail. In the Magnum log, I find the following error: ---- Failed to delete trust: keystoneauth1.exceptions.http.Unauthorized: The request you have made requires authentication. (HTTP 401) (Request-ID: req-a4400250-e8d5-46ec-a28a-dcb97a682512) (traceback skipped for readability) 2024-05-29 10:43:09.750 2078 INFO magnum.common.cert_manager.barbican_cert_manager [None req-94df560b-d6da-4fba-83a9-34e0b08c64c8 - - - - - -] Recursively deleting certificate container https://os-77023.lal.in2p3.fr:9311/v1/containers/edd8487a-6cf1-4f4c-9f53-173... from Barbican. 2024-05-29 10:43:09.750 2078 INFO barbicanclient.base [None req-94df560b-d6da-4fba-83a9-34e0b08c64c8 - - - - - -] Calculated Containers uuid ref: containers/edd8487a-6cf1-4f4c-9f53-173dfae7a8b2 2024-05-29 10:43:09.760 2078 ERROR barbicanclient.client [None req-94df560b-d6da-4fba-83a9-34e0b08c64c8 - - - - - -] 4xx Client error: Not Found: Secrets container not found. 2024-05-29 10:43:09.761 2078 ERROR magnum.common.cert_manager.barbican_cert_manager [None req-94df560b-d6da-4fba-83a9-34e0b08c64c8 - - - - - -] Error recursively deleting certificate container https://os-77023.lal.in2p3.fr:9311/v1/containers/edd8487a-6cf1-4f4c-9f53-173...: barbicanclient.exceptions.HTTPClientError: Not Found: Secrets container not found. ---- In Keystone log, I find with the same timestamp the following error that seems related to the one above: ---- 2024-05-29 10:43:09.690 1713 WARNING keystone.api._shared.authentication [None req-a4400250-e8d5-46ec-a28a-dcb97a682512 - - - - - -] Could not find trust: cf4b1b6082594025a1ff9e48df383566.: keystone.exception.TrustNotFound: Could not find trust: cf4b1b6082594025a1ff9e48df383566. 2024-05-29 10:43:09.693 1713 WARNING keystone.server.flask.application [None req-a4400250-e8d5-46ec-a28a-dcb97a682512 - - - - - -] Authorization failed. The request you have made requires authentication. from 134.158.77.23: keystone.exception.Unauthorized: The request you have made requires authentication. 2024-05-29 10:43:09.746 1723 ERROR keystone.server.flask.application [None req-8c76f304-c2a3-418c-8372-02c706ed356e 44d8cb3192b3485790ababe29991491a - 5b67a8641dd041089e018ceea9884eac - 5b67a8641dd041089e018ceea9884eac -] Could not find user: 527ec32509d849e8a49b41c3dc4c4c32.: keystone.exception.UserNotFound: Could not find user: 527ec32509d849e8a49b41c3dc4c4c32. ---- It is not clear for me if the ERROR is releated to the 2 warnings as the request is not the same but it seems to happen every time this way. In Barbican logs, there is not much things related except a 401 status for the request corresponding ot the TrustNotFound. I'm looking for advices on how to troubleshoot this. In particular, when the trust should be created and whether I should find somewhere a matching error at the time of the trust creation. It seems the error is only affecting deletion but I may be wrong. for the record, when starting Magnum there is an error complaining about /etc/magnum/keystone_auth_default_policy.json being not found but ignored it so far. And in Keystone an error seems to occur at Magnum cluster creation time: --- 2024-05-29 10:17:17.530 1711 WARNING py.warnings [None req-f484cc35-3e54-4d7f-8688-e6442c90344f a22b1199c74f4a819a49f3ac037a5e44 1dd67113c8bb4ef0a31dfca53335ffbd - - defaul t default] /usr/lib/python3.9/site-packages/oslo_policy/policy.py:1129: UserWarning: Policy "identity:list_services": "role:reader and system_scope:all" failed scope check. The token used to make the request was project scoped but the policy requires ['system'] scope. This behavior may change in the future where using the intended scope is re quired ---- Thanks in advance for any hint. Best regards, Michel