action “create_endpoint" defined in openstack-identity can't support multi region scenario

[LeileiZhou]

In action "create_endpoint" in openstack-identity, the logic is:
endpoint_uuid = identity_uuid new_resource, 'endpoint', 'service_id', service_uuid

Which only check when specific service has endpoint created, no action will be taken.

But for multi-region scenario as follows:
[root@c582f1-n34-vm7 ~]# keystone endpoint-list |grep 9292
| 309881fec0354bcb82f0f06f45807e8b | RegionOne | http://9.114.170.187:9292 | http://9.114.170.187:9292 | http://9.114.170.187:9292 | f9511a66e0484f3dbd1584065e8bab1c |
| 6757ebe34ab14f08836c746fc4248503 | regionTwo | http://9.114.170.197:9292 | http://9.114.170.197:9292 | http://9.114.170.197:9292 | f9511a66e0484f3dbd1584065e8bab1c |

After endpoint for "RegionOne" has been created, "regionTwo" will not have a chance to be created.

[Openstack Gerrit (openstack-gerrit)]

Fix proposed to branch: master
Review: https://review.openstack.org/90779

[Openstack Gerrit (openstack-gerrit)]

Reviewed: https://review.openstack.org/90779
Committed: https://git.openstack.org/cgit/stackforge/cookbook-openstack-identity/commit/?id=dd87c057414326a7f632b8eb18d9f4fc3a5bcea2
Submitter: Jenkins
Branch: master

commit dd87c057414326a7f632b8eb18d9f4fc3a5bcea2
Author: leileiz <email address hidden>
Date: Mon Apr 28 07:30:59 2014 -0400

    Add ability to override endpoint creation

    For new endpoint creation, only there's no endpoint with the
    same region name and service id existing, the creation will
    be executed.

    closes-Bug: #1313690

    Change-Id: Ib287f92f1ac9e75fb258381efe387a083d11efc6