Error "no persistent volumes available for this claim and no storage class is set"

Question

Is it required to create the directory manually in nodes or will it be auto created by pv?

Here is my pv & pvc file, and I'm seeing this error

no persistent volumes available for this claim and no storage class is set

how to resolve this?

kind: PersistentVolume
apiVersion: v1
metadata:
name: zk1-pv
labels:
  type: local
spec:
storageClassName: manual
capacity:
  storage: 10Mi
accessModes:
  - ReadWriteOnce
hostPath:
  path: "/mr/zk"

cat zk1-pvc.yaml
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: zk1-pvc
spec:
accessModes:
  - ReadWriteOnce
resources:
  requests:
    storage: 10Mi


kubectl describe pvc zk1-pvc
Name:          zk1-pvc
Namespace:     instavote
StorageClass:
Status:        Pending
Volume:
Labels:        <none>
Annotations:   kubectl.kubernetes.io/last-applied-configuration:
               {"apiVersion":"v1","kind":"PersistentVolumeClaim","metadata":{"annotations":{},"name":"zk1-pvc","namespace":"instavote"},"spec":{"accessMo...
Finalizers:    [kubernetes.io/pvc-protection]
Capacity:
Access Modes:
Events:
Type       Reason         Age                  From                         Message
----       ------         ----                 ----                         -------
Normal     FailedBinding  12s (x14 over 3m7s)  *persistentvolume-controller  no persistent volumes available for this claim and no storage class is set*
Mounted By:  zk1-745b7cbf46-lg7v9

Luik

Answer 1

Back to your main question

Is it required to create the directory manually in nodes or will it be auto created by pv?

First of all, error in your output is not related with your question. As an answer for your question - Yes. It is crated by PV automatically.

In order to do achieve this, first you have to create StorageClass with no-provisioner as an example below

kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: manual
provisioner: kubernetes.io/no-provisioner
volumeBindingMode: WaitForFirstConsumer

Then you have to create PersistentVolume by defining this storageClassName and hostPath parameter like below:

apiVersion: v1
kind: PersistentVolume
metadata:
  name: zk1-pv
spec:
  storageClassName: manual
  capacity:
    storage: 1Gi
  accessModes:
  - ReadWriteOnce
  hostPath:
    path: /mr/zk

Then you have to create PVC and Pod/Deployment as an example below:

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: myclaim
spec:
  storageClassName: manual
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 1Gi

---
apiVersion: v1
kind: Pod
metadata:
  name: mypod
spec:
  containers:
    - name: containerName
      image: gcr.io/google-containers/nginx:1.7.9
      volumeMounts:
      - mountPath: "/var/www/html"
        name: mypd
  volumes:
    - name: mypd
      persistentVolumeClaim:
        claimName: myclaim

NOTE:
Don't forget put storageClassName: manual parameter on both PVC and PV manifests. Otherwise they will not be able to bound to each other.

Hope it clears

Garretson

Answer 2

You forgot to specify storageClassName: manual in PersistentVolumeClaim.

Ceramics