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README.md

Exercise - 5

A project that you are working on has a requirement for persistent data to be available.

  • Create a file on node sk8s-node-0 at index.html with the content Acct=Finance
  • Create a PersistentVolume named task-pv-volume using hostPath and allocate 1Gi to it, specifying that the volume is at /opt/KDSP00101/data on the cluster's node. The configuration should specify the access mode of ReadWriteOnce - It should define the StorageClass name exam for the PersistentVolume, which will be used to bind PersistentVolumeClaim requests to this PersistentVolume.
  • Create a PersistentVolumeClaim named task-pv-claim that requests a volume of at least 100Mi and specifies an access mode of ReadWriteOnce
  • Create a pod that uses the PersistentVolumeClaim as a volume with a label app: my-storage-app mounting the resulting volume to a mountPath /usr/share/nginx/html inside the pod

Solution

Step 1

echo Acct=Finance > index.html

cat .\index.html
Acct=Finance

Step 2

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: task-pvc-volume
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 100Mi
apiVersion: v1
kind: PersistentVolume
metadata:
  name: task-pv-volume
spec:
  claimRef: # binding to claim
    name: task-pvc-volume
  capacity:
    storage: 1Gi
  accessModes:
    - ReadWriteOnce
  storageClassName: storage
  hostPath:
    path: /opt/KDSP00101/data
    type: Directory

Step 3

apiVersion: v1
kind: Pod
metadata:
  name: nginx
  labels:
    app: my-storage-app
spec:
  containers:
  - name: nginx
    image: nginx
    volumeMounts:
    - name: html
      mountPath: /usr/share/nginx/html
  volumes:
  - name: html
    persistentVolumeClaim:
      claimName: task-pvc-volume

Reference