Identifying the MapR Volume Created During Dynamic Provisioning

Describes how to find the name of the MapR volume created during dynamic provisioning.

In dynamic provisioning, the provisioner creates a new MapR volume with a name that is randomly generated using lower-case letters. For example, if you specify PV as the namePrefix in the StorageClass, the first dynamically created volume might be named PV.bevefsescr. If you do not specify a prefix, the provisioner uses maprprovisioner as a prefix.

To find the name of the new MapR volume and the path to the volume:

Use the kubectl describe command to get information about the PVC:

kubectl describe pvc -n <namespace> <pvc-name>

The command output shows the name of the PersistentVolume (PV) that was created: For example:

kubectl describe pvc -n mapr-examples maprfs-secure-pvc109
Name:          maprfs-secure-pvc109
Namespace:     mapr-examples
StorageClass:  secure-maprfs
Status:        Bound
Volume:        pv-ikmqxfwtjh
Labels:        <none>
Annotations:   control-plane.alpha.kubernetes.io/leader={holderIdentity":"ed60e649-0c68-11e8-acd5-36117e0e7e02","leaseDurationSeconds":15, "acquireTime":"2018-02-09T22:09:43Z"
               pv.kubernetes.io/bind-competed=yes
               pv.kubernetes.io/bound-by-controller=yes
               volume.beta.kubernetes.io/storage-provisioner=mapr.com/maprfs
Finalizers:    []
Capacity:      300M
Access Modes:  RWO
Events:

Use the kubectl get command and the PersistentVolume (PV) name to obtain a description of the PersistentVolume:

kubectl get pv <pv-name> -o yaml

The command output shows the path to the MapR volume. For example:

kubectl get pv pv-ikmqxfwtjh -o yaml
apiVersion: v1
kind: PersistentVolume
metadata:
  annotations:
    mapr.com/description: 'Dynamically provisioned PV for MapR-FS: pv.ikmqxfwtjh'
    mapr.com/maprProvisionerIdentity: mapr.com/maprfs
    mapr.com/provisionerVersion: v1.0.0 
    mapr.com/restServers: 10.10.88.214:8443
    mapr.com/secretName: mapr-provisioner-secrets 
    mapr.com/secretNamespace: mapr-examples
    mapr.com/volumeName: pv.ikmqxfwtjh
    pv.kubernetes.io/provisioned-by: mapr.com/maprfs
  creationTimestamp: 2018-02-09T22:21:22Z
  name: pv-ikmqxfwtjh
  resourceVersion: "2875820"
  selfLink: /api/v1/persistentvolumes/pv-ikmqxfwtjh
  uid: 8f11aa11-0de7-11e8-bdd6-84a9c4fbf7cb
spec:
  accessModes:
  - ReadWriteOnce
  capacity:
    storage: 300M
  claimRef:
    apiVersion: v1
    kind: PersistentVolumeClaim
    name: maprfs-secure-pvc109
    namespace: mapr-examples
    resourceVersion: "2842548"
    uid: ce5555e4-0de5-11e8 bdd6-84a9c4fbf7cb
  flexVolume:
    driver: mapr.com/maprfs
    options:
      cldbHosts: xx.xx.xx.xxx yy.yy.yy.yyy zz.zz.zz.zzz
      cluster: Test5
      mountOptions: ""
      platinum: "true"
      readOnly: "false"
      securityType: secure
      ticketSecretName: mapr-ticket-secret
      ticetSecretNamespace: mapr-examples
      volumePath: /pv/pv-ikmqxfwtjh
  persistentVolumeReclaimPolicy: Delete
  storageclassName: secure-maprfs
status:
  phase: Bound