Ran into a related problem during debugging of dashboard errors ("Unable to retrieve key pairs") with a Rocky cloud & identity federation.
There was no clear indication as to why failures occurred. https://paste.ubuntu.com/p/v5HXyyWXC2/ (full pdb trace) At a high level I was getting validation failures for the identity provider (which was enabled in Keystone and was otherwise correct in terms of config) in the /v3/auth/token code path. I narrowed it down to a validation error due to a type mismatch (bytes vs str): 1) the error occurs in send_notification: > /usr/lib/python3/dist-packages/keystone/auth/plugins/mapped.py(101)handle_scoped_token()->None -> send_notification(taxonomy.OUTCOME_SUCCESS) (Pdb) l 96 # send off failed authentication notification, raise the exception 97 # after sending the notification 98 send_notification(taxonomy.OUTCOME_FAILURE) 99 raise 100 else: 101 -> send_notification(taxonomy.OUTCOME_SUCCESS) # ... 2) this is how the validation error looks like: (Pdb) setattr(self, FED_CRED_KEYNAME_IDENTITY_PROVIDER, identity_provider) *** ValueError: identity_provider failed validation: <function FederatedCredential.<lambda> at 0x7fa0016ef9d8> 3) the lambda function where the error occurs 67 class FederatedCredential(Credential): 68 identity_provider = cadftype.ValidatorDescriptor( 69 FED_CRED_KEYNAME_IDENTITY_PROVIDER, 70 -> lambda x: isinstance(x, six.string_types)) 71 user = cadftype.ValidatorDescriptor( 72 FED_CRED_KEYNAME_USER, 73 lambda x: isinstance(x, six.string_types)) 74 groups = cadftype.ValidatorDescriptor( 75 FED_CRED_KEYNAME_GROUPS, 4) type comparison (b'adfs' is the identity provider name): ((Pdb)) x b'adfs' ((Pdb)) six.string_types (<class 'str'>,) ((Pdb)) type(x) <class 'bytes'> Using a package from James' PPA helped as I am not getting errors in the same code-path anymore. apt policy keystone keystone: Installed: 2:14.1.0-0ubuntu2~ubuntu18.04.1~ppa201906140719 Candidate: 2:14.1.0-0ubuntu2~ubuntu18.04.1~ppa201906140719 Version table: *** 2:14.1.0-0ubuntu2~ubuntu18.04.1~ppa201906140719 500 When clicking through tabs very fast I encountered a glitch which results in the following error messages being displayed (see the screencast in the attachment): Error: "Unable to retrieve key pairs"/"Unable to retrieve images"/""Unable to retrieve server groups" Warning: "Policy check failed" I tried to set breakpoints in the same place - the same validation error does NOT occur with the patch so this is something else unrelated to py2 vs py3 string handling. ** Attachment added: "2019-06-22-16-12-40.mkv" https://bugs.launchpad.net/charm-keystone-ldap/+bug/1832265/+attachment/5272335/+files/2019-06-22-16-12-40.mkv ** Also affects: cloud-archive Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1832265 Title: py3: inconsistent encoding of token fields To manage notifications about this bug go to: https://bugs.launchpad.net/charm-keystone-ldap/+bug/1832265/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs