Elasticsearch pod runs after install but service unavailable due to missing PVC on glusterfs

Issue

• After installation, the logging components come online but Elasticsearch isn't available. Side effects could include curator restarts:

  # oc get pods
  NAME                                      READY     STATUS    RESTARTS   AGE
  logging-curator-1-kp7mm                   1/1       Running   5          9m
  logging-es-data-master-9orxtgi1-3-8x6wf   2/2       Running   0          4m
  
  # oc logs logging-curator-1-kp7mm
  Was not able to connect to Elasticearch at logging-es:9200 within 60 attempts
  

• In addition, the container log indicates problems with Elasticsearch starting:

  # oc logs -c elasticsearch logging-es-data-master-9orxtgi1-3-8x6wf
  ...
  Contacting elasticsearch cluster 'elasticsearch' and wait for YELLOW clusterstate ...
  ERR: Timed out while waiting for a green or yellow cluster state.
     * Try running sgadmin.sh with -icl and -nhnv (If thats works you need to check your clustername as well as hostnames in your SSL certificates)
  0
  [2018-04-06 12:36:35,671][WARN ][container.run            ] Error seeding the searchguard ACL index... retrying in 10 seconds - 0 retries so far
  [2018-04-06 12:36:35,671][WARN ][container.run            ] Seeding will continue to fail until the cluster status is YELLOW
  [2018-04-06 12:36:35,793][INFO ][container.run            ] Remaining red indices: 1
  ...