Certified Kubernetes Administrator CKA — Question 16

Topic 1 · Question 16 of 23

Topic 1 · Question 16

SIMULATION - Task - Create a new PersistentVolumeClaim: • Name: pv-volume • Class: csi-hostpath-sc • Capacity: 10Mi Create a new Pod which mounts the PersistentVolumeClaim as a volume: • Name: web-server • Image: nginx • Mount path: /usr/share/nginx/html Configure the new Pod to have ReadWriteOnce access on the volume. Finally, using kubectl edit or kubectl patch expand the PersistentVolumeClaim to a capacity of 70Mi and record that change.

Suggested solution

cat <<'EOF' | kubectl apply -f -
apiVersion: v1
kind: PersistentVolumeClaim
metadata: {name: pv-volume}
spec:
  storageClassName: csi-hostpath-sc
  accessModes: [ReadWriteOnce]
  resources: {requests: {storage: 10Mi}}
---
apiVersion: v1
kind: Pod
metadata: {name: web-server}
spec:
  containers:
  - name: web-server
    image: nginx
    volumeMounts: [{name: data, mountPath: /usr/share/nginx/html}]
  volumes:
  - name: data
    persistentVolumeClaim: {claimName: pv-volume}
EOF
kubectl patch pvc pv-volume -p '{"spec":{"resources":{"requests":{"storage":"70Mi"}}}}'
kubectl get pvc pv-volume

The claim requests the provided storage class, the Pod mounts it, and the patch expands the requested capacity when the class allows expansion.

View community discussion →