volumes

Storage

1. Create a persistent volume claim alpha-claim in the namespace default with:

   • storageClass: local-path
   • access mode: ReadWriteOnce
   • Capacity: 1Gi

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: alpha-claim
spec:
  accessModes:
    - ReadWriteOnce
  storageClassName: local-path
  resources:
    requests:
      storage: 1Gi

or

kubectl apply -f pvc.yaml

2. Create a pod called volume-user that uses the image registry.sighup.io/workshop/nginx:alpine that mounts this volume on /usr/share/nginx/html.

apiVersion: v1
kind: Pod
metadata:
  name: volume-user
spec:
  volumes:
    - name: task-pv-storage
      persistentVolumeClaim:
        claimName: alpha-claim
  containers:
    - name: task-pv-container
      image: nginx
      ports:
        - containerPort: 80
          name: "http-server"
      volumeMounts:
        - mountPath: "/usr/share/nginx/html"
          name: task-pv-storage

or

kubectl apply -f pod.yaml

3. Enter the pod volume-user and create a file index.html inside the mounted directory with arbitrary content.

kubectl exec -it volume-user -- bash 

root@volume-user:/# touch /usr/share/nginx/html/index.html
root@volume-user:/# echo 'hello' > /usr/share/nginx/html/index.html
exit

kubectl exec -it volume-user -- cat /usr/share/nginx/html/index.html

4. Delete and recreate the pod

kubectl delete pod volume-user
kubectl apply -f pod.yaml
kubectl exec -it volume-user -- cat /usr/share/nginx/html/index.html

5. Check that the file /usr/share/nginx/html/index.html inside the pod is still present.

• Dynamic Provisioning K8s docs