What Did I do ?
==================
On openshift devstack environment,I tried to annotate twice the same object (service/LBaaSServiceSpec  in my  case , but it happened also with other objects)
For a simple test I just added the following lines :

'
            org_prj_id = lbaas_spec.project_id
            lbaas_spec.project_id = 'dummy_value'
            self._set_lbaas_spec(service, lbaas_spec)
'
to :
https://github.com/openstack/kuryr-kubernetes/blob/master/kuryr_kubernetes/controller/handlers/lbaas.py#L57


Expected results
===================
Annotation should be updated


Actual Result:
==============
Exception from K8s_client , 'Operation cannot be fulfilled ... the object has been modified'

The detailed exception :
Nov 21 14:18:33 rfghghfh python[1163]: 2017-11-21 14:18:33.523 1163 ERROR kuryr_kubernetes.handlers.logging K8sClientException: {"kind":"Status","apiVersion":"v1","metadata":{},"status":"Failure","message":"Operation cannot be fulfilled on services \"kuryr-demo444\": the object has been modified; please apply your changes to the latest version and try again","reason":"Conflict","details":{"name":"kuryr-demo444","kind":"services"},"code":409}