If a user has been deleted from the OpenShift web console, they will no longer be able to login. The user’s account and associated resources will also be deleted. If the user needs access again, they will have to be re-created in the console.
To recreate the user you can use the command :oc create user <username>
Use the oc create useridentitymapping command to map the identity to the user.
Use the command oc get identities to lis all identities you have configured, an then map the user.
For example:oc create useridentitymapping homeldap:Y249a2VuaW8sb3U9 kenio
OpenShift User is not able to login again after deletion using web console
kenio.carvalho