We’re running Train on Centos 7, and using Keycloak for auth. After I setup Keycloak, create a user in Keycloak, and then login to Horizon via Keycloak, a user is created in Keystone:

| ccb276f4f507fd9f271d629d2ad896d2c97e04f81336cd8c1332f4b2df115ca2 | test |

If I try to address that user by name, I get an error:

(openstack) [root@chrnc-area51-build-01 our-ok-kolla-ansible]# os user show test

More than one user exists with the name 'test'.

I can address it by id. When I list users, I only see one “test” user.”

(openstack) [root@chrnc-area51-build-01 our-ok-kolla-ansible]# os user show ccb276f4f507fd9f271d629d2ad896d2c97e04f81336cd8c1332f4b2df115ca2

+---------------------+------------------------------------------------------------------+

| Field | Value |

+---------------------+------------------------------------------------------------------+

| domain_id | 4678301ef9a24d54bcd2e87a8fbc6872 |

| email | test@example.com |

If I create a second user in Keycloak and login the same way, this doesn’t happen:

(openstack) [root@chrnc-area51-build-01 our-ok-kolla-ansible]# os user show test2

+---------------------+------------------------------------------------------------------+

| Field | Value |

+---------------------+------------------------------------------------------------------+

| domain_id | 4678301ef9a24d54bcd2e87a8fbc6872 |

| email | test2@example.com |

These 2 users look identical in the database:

user:

| ccb276f4f507fd9f271d629d2ad896d2c97e04f81336cd8c1332f4b2df115ca2 | {"email": "test@example.com"} | 1 | NULL | 2021-01-22 18:33:20 | NULL | 4678301ef9a24d54bcd2e87a8fbc6872 |

| f4287b6082b8f36048d052eaa3d35facb94e5eff598d59d2aee68252ddb13339 | {"email": "test2@example.com"} | 1 | NULL | 2021-01-22 21:01:54 | NULL | 4678301ef9a24d54bcd2e87a8fbc6872 |

federated_user:

Where should I be looking for the cause of this error?

I apologize for the nonsense below. So far I have not been able to stop it from being attached to my external emails. I'm working on it.