I'm seeing errors like these:
Sep 18 08:47:31 cloudcontrol1005 keystone-wsgi-public[771419]: 2023-09-18 08:47:31.759 771419 ERROR keystone.server.flask.request_processing.middleware.auth_context [None req-5ab047f3-c8bd-498d-89fa-42c0a8ef5bfd novaadmin admin - - default default] (pymysql.err.OperationalError) (1045, "Access denied for user 'keysto> (Background on this error at: https://sqlalche.me/e/14/e3q8): sqlalchemy.exc.OperationalError: (pymysql.err.OperationalError) (1045, "Access denied for user 'keystone'@'172.20.1.2' (using password: YES)") (Background on this error at: https://sqlalche.me/e/14/e3q8)
The address 172.20.1.2 is cloudlb1001.private.eqiad.wikimedia.cloud