Kuberenetes NFS persistent volume

2020-06-18 18:30

Greg Stencel

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Source

Tags:

k8s_nfs_persistent_volume

Create nfs persistent volume:

What you need

NFS Server I have used NFS already installed on my QNAP NAS (You need to enable NO_ROOT_SQUASH on permissions)
K8s cluster

Now having your NFS share here 192.168.1.11/Persistentvolume/ you can try if it works with mount

sudo mount -t nfs 192.168.1.11:/PersistentVolume /mnt/PersistentVolume

Later on you can secure access with password.

If everything works fine we need persistent volume on our cluster

persistentvolume.yml

apiVersion: v1
kind: PersistentVolume
metadata:
  name: pv0001
spec:
  capacity:
    storage: 100Gi
  accessModes:
  - ReadWriteMany
  mountOptions:
    - nfsvers=4.1
  nfs:
    path: /PersistentVolume/pv0001
    server: 192.168.1.11
  persistentVolumeReclaimPolicy: Retain

Apply above yaml to the cluster

kubectl apply -f persistentvolume.yml

Now we need to declare persistent volume claim

persistentvolumeclaim.yml

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mysql-pv-claim
spec:
  accessModes:
    - ReadWriteMany 
  resources:
    requests:
      storage: 10Gi

Apply

kubectl apply -f persistentvolumeclaim.yml

Check if it has been bound:

kubectl get pv

NAME     CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS   CLAIM                    STORAGECLASS   REASON   AGE
pv0001   100Gi      RWX            Retain           Bound    default/mysql-pv-claim                           2d4h

kubectl get pvc 
NAME              STATUS    VOLUME   CAPACITY   ACCESS MODES   STORAGECLASS   AGE
mysql-pv-claim    Bound     pv0001   100Gi      RWX                           2d4h