OpenShift health check failed because oc exec expects elasticsearch as first container in pod

Issue

• OpenShift health check failed with below error:

"/elasticsearch/persistent': No such file or directory\ncommand terminated with exit code 1"

• OpenShift health check failed with below error:

Failure summary:
     Hosts:    example.com
     Play:     OpenShift Health Checks
     Task:     Run health checks (@health)
     Message:  One or more checks failed
     Details:  check "elasticsearch":
               Unexpected error using `oc` to validate the logging stack components.
               Error executing `oc exec logging-es-data-master-ml2ru5kp-1-hgcr4 -- df --output=ipcent,pcent /elasticsearch/persistent`:
               [rc 1] /bin/oc --config /etc/origin/master/admin.kubeconfig -n logging exec logging-es-data-master-ml2ru5kp-1-hgcr4 -- df --output=ipcent,pcent /elasticsearch/persistent
               Defaulting container name to proxy.
               Use 'oc describe pod/logging-es-data-master-ml2ru5kp-1-hgcr4' to see all of the containers in this pod.
               df: '/elasticsearch/persistent': No such file or directory
               command terminated with exit code 1