NSFS using a Local PV on k8s

In this example we are showing how to create a Local PV (similar to hostpath) for NSFS.

See https://kubernetes.io/docs/concepts/storage/volumes/#local.

We assuming the filesystem to expose is already mounted in the path /nsfs in the cluster nodes. We will create a StorageClass for manual provisioning, then create a local PV that represents the mounted file system on the node at /nsfs, and finally create a PVC to bind to it - notice that the PVC should be created in the noobaa namespace (but storage-class and PV are cluster-wide).

Use the yamls attached below -

kubectl create -f nsfs-local-class.yaml
kubectl create -f nsfs-local-pv.yaml
kubectl create -f nsfs-local-pvc.yaml

nsfs-local-class.yaml:

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

nsfs-local-pv.yaml:

apiVersion: v1
kind: PersistentVolume
metadata:
  name: nsfs-vol
spec:
  storageClassName: nsfs-local
  volumeMode: Filesystem
  persistentVolumeReclaimPolicy: Retain
  local:
    path: /nsfs/
  capacity:
    storage: 1Ti
  accessModes:
    - ReadWriteMany
  nodeAffinity:
    required:
      nodeSelectorTerms:
        - matchExpressions:
            - key: kubernetes.io/os
              operator: Exists

nsfs-local-pvc.yaml:

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: nsfs-vol
spec:
  storageClassName: nsfs-local
  resources:
    requests:
      storage: 1Ti
  accessModes:
    - ReadWriteMany