RWO is sufficient for DMaaP PVC.
Change-Id: I35339948b3164e83b92d2e81a1c772574ebb9e9a
Issue-ID: DMAAP-1285
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
 ## Persist data to a persitent volume
 persistence:
   volumeReclaimPolicy: Retain
-  accessMode: ReadWriteMany
+  accessMode: ReadWriteOnce
   mountPath: /dockerdata-nfs
 
   spoolMountSubPath: data-router/dr-node/spool-data
 
   ##   GKE, AWS & OpenStack)
   ##
   # storageClass: "-"
-  accessMode: ReadWriteMany
+  accessMode: ReadWriteOnce
   size: 2Gi
   mountPath: /dockerdata-nfs
   mountSubPath: message-router/data-kafka
   externalPort: 9093
   baseNodePort: 30490
 
-  
+
 
 ingress:
   enabled: false
       cpu: 1000m
       memory: 2Gi
   unlimited: {}
-
 
   ##   GKE, AWS & OpenStack)
   ##
   # storageClass: "-"
-  accessMode: ReadWriteMany
+  accessMode: ReadWriteOnce
   size: 2Gi
   mountPath: /dockerdata-nfs
   mountSubPath: message-router/data-zookeeper