Mounting a Read-Only Volume

This page describes how to specify a volume that should be mounted as read-only.

The following example specifies a volume that should be mounted as read-only in a MapR path or PersistentVolume during static provisioning:

flexVolume:
        driver: "mapr.com/maprfs"
        readOnly: true
        options:
          volumePath: "/path/to/data/in/mapr"
          cluster: "mycluster"
          cldbHosts: "cldb1 cldb2 cldb3"
          securityType: "secure"
          ticketSecretName: "mapr-ticket-secret"
          ticketSecretNamespace: "mapr-examples"

The following example shows how to specify that the volume should be mounted read-only in a StorageClass for dynamic provisioning. The example specifies that the POSIX driver should mount the MapR path as read only. This is different from the readonly parameter for volume creation that creates the volume as readonly.

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
   name: secure-maprfs
   namespace: mapr-examples
provisioner: mapr.com/maprfs
parameters:
    restServers: "rest1:8443"
    cldbHosts: "cldb1 cldb2 cldb3"
    cluster: "mysecurecluster"
    securityType: "secure"
    ticketSecretName: "mapr-ticket-secret"
    ticketSecretNamespace: "mapr-examples"
    maprSecretName: "mapr-provisioner-secrets"
    maprSecretNamespace: "mapr-examples"
    namePrefix: "pv"
    mountPrefix: "/pv"
    readOnly: "true"
    reclaimPolicy: "Retain"
    advisoryquota: "100M"

The following example specifies that the volume should be created as readOnly in a StorageClass for dynamic provisioning:

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
   name: secure-maprfs
   namespace: mapr-examples
provisioner: mapr.com/maprfs
parameters:
    restServers: "rest1:8443"
    cldbHosts: "cldb1 cldb2 cldb3"
    cluster: "mysecurecluster"
    securityType: "secure"
    ticketSecretName: "mapr-ticket-secret"
    ticketSecretNamespace: "mapr-examples"
    maprSecretName: "mapr-provisioner-secrets"
    maprSecretNamespace: "mapr-examples"
    namePrefix: "pv"
    mountPrefix: "/pv"
    reclaimPolicy: "Retain"
    advisoryquota: "100M"
    readonly: "1"