title: Kubernetes: PersistentVolumeClaim error, Forbidden: is immutable after creation except resources.requests for bound claims
body: <p>I have created a StorageClass and PersistentVolume but when I try to create a PersistentVolumeClaim I get the following error, "The PersistentVolumeClaim "esp-pv" is invalid: spec: Forbidden: is immutable after creation except resources.requests for bound claims".  I have tried to delete the StorageClass PersistentVolume, and PersistentVolumeClaim, as other posts have suggested, and then recreate the sc, pv and pvc but I get the same error. </p>
  
  <pre><code>apiVersion: storage.k8s.io/v1
  kind: StorageClass
  metadata:
     name: manual
  provisioner: kubernetes.io/no-provisioner
  #volumeBindingMode: WaitForFirstConsumer
  volumeBindingMode: Immediate
  allowVolumeExpansion: true
  </code></pre>
  
  <pre><code>apiVersion: v1
  kind: PersistentVolume
  metadata:
     name: esp-pv-volume   # name of the pv 
     namespace: espkube    # namespace where the p vis applied
     labels:
       type: local
  spec:
     storageClassName: manual
     accessModes:
       - ReadWriteMany  # esp, studio and streamviewer can all write to this space
     hostPath:
       path: "/mnt/data/"
     capacity:
       storage: 10Gi  # volume size requested
  </code></pre>
  
  <pre><code>apiVersion: v1
  kind: PersistentVolumeClaim 
  metadata:
     name: esp-pv
     namespace: espkube
  spec:
     storageClassName: manual
     accessModes:
       - ReadWriteMany # esp, studio and streamviewer can all write to this space
     resources:
       requests:
         storage: 10Gi  # volume size requested
  </code></pre>