Created attachment 759672 [details]
Patch will adds a third attempt to resolve the string as a string

Description of problem:
When resolving the user positional argument to the "user-get" command, keystoneclient uses the following logic:

    # first try to get entity as integer id
    try:
        if isinstance(name_or_id, int) or name_or_id.isdigit():
            return manager.get(int(name_or_id))
    except exceptions.NotFound:
        pass

    # now try to get entity as uuid
    try:
        uuid.UUID(str(name_or_id))
        return manager.get(name_or_id)
    except (ValueError, exceptions.NotFound):
        pass

When using a readonly LDAP server as the identity store, userids are strings instead of integers or UUIDs. Thus user lookups fail with a exceptions.NotFound exception.

[root@virt-three keystone]# keystone user-list
+------------+--------------------+---------+---------------------------+
| id | name | enabled | email |
+------------+--------------------+---------+---------------------------+
| admin | Administrator | False | |
...
| rdo-admin | RDO Administrator | True | root.redhat.com |
+------------+--------------------+---------+---------------------------+
[root@virt-three keystone]# keystone user-get rdo-admin
No user with a name or ID of 'rdo-admin' exists.

Version-Release number of selected component (if applicable):
python-keystoneclient-0.2.3-4.el6.noarch

How reproducible:
100%

Steps to Reproduce:
[root@virt-three keystone]# keystone user-list
+------------+--------------------+---------+---------------------------+
| id | name | enabled | email |
+------------+--------------------+---------+---------------------------+
| admin | Administrator | False | |
...
| rdo-admin | RDO Administrator | True | root.redhat.com |
+------------+--------------------+---------+---------------------------+
[root@virt-three keystone]# keystone user-get rdo-admin

Actual results:
No user with a name or ID of 'rdo-admin' exists.

Expected results:
+----------+---------------------------+
| Property |           Value           |
+----------+---------------------------+
|  email   | root.redhat.com |
| enabled  |            True           |
|    id    |         rdo-admin         |
|   name   |     RDO Administrator     |
+----------+---------------------------+


Additional info:
Filed upstream as https://bugs.launchpad.net/python-keystoneclient/+bug/1189933