Create PVCs using the ReadOnlyMany access mode in OCP IBM Cloud

This guide provides steps for mounting a disk in the ReadOnlyMany (ROX) access mode. The in-tree Portworx driver for Kubernetes on OpenShift does not support creating PVCs with the ReadOnlyMany access mode. To achieve this functionality, follow the steps below:

1. Create a sharedv4 volume. Note that you can access a sharedv4 volume from multiple pods at the same time. For details about creating a sharedv4 volume, refer to the Create sharedv4 PVCs page.

2. Add a persistentVolumeClaim subsection to the volumes section of your Pod, specifying the following fields and values:

   • readOnly: with the true value

   • claimName: with the name of the PVC you created in the step above

     apiVersion: v1
     kind: Pod
     metadata:
       name: pvpod
     spec:
       containers:
       - name: test-container
         image: gcr.io/google_containers/test-webserver
         volumeMounts:
         - name: test-vol
           mountPath: /test-portworx-volume
       volumes:
       - name: test-vol
         persistentVolumeClaim:
           claimName: pvcsc001
           readOnly: true