Description of problem:
if we use local storage for ES storage folowing [1],  the hostpath [2] will be added to deploymentconfig. For the upgrade playbook remove the hostpath , the user has to add it back mannuly. that is an extend request as https://bugzilla.redhat.com/show_bug.cgi?id=1478771 to persist ES storage configuration in deploymentconfig

Version-Release number of the following components:
openshift-ansible


How reproducible:
always

Steps to Reproduce:
1. use local storage for ES storage following [1].  and save the deploymentconfig file
   oc get dc logging-es-data-master-xxxxx1 -o yaml > config.save1
2. upgrade logging and save the deploymentconfig file
   oc get dc logging-es-data-master-xxxxx2 -o yaml > config.save2
3. diff config.save1 config.save2

Actual results:
The hostPath[2] are deleted.

Expected results:
The storage configure values are perserved.

Additional info:
[1]https://docs.openshift.com/container-platform/3.5/install_config/aggregate_logging.html-> Persistent Elasticsearch Storage. 
[2]- hostPath:
          path: /usr/local/es-storage
        name: elasticsearch-storage