concept persistentvolumeclaim in category kubernetes

This is an excerpt from Manning's book Kubernetes in Action. Login to get full access to this book.

persistentVolumeClaim—A way to use a pre- or dynamically provisioned persistent storage. (We’ll talk about them in the last section of this chapter.)

Figure 6.6. PersistentVolumes are provisioned by cluster admins and consumed by pods through PersistentVolumeClaims.

Listing 6.11. A PersistentVolumeClaim: mongodb-pvc.yaml

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mongodb-pvc              #1
spec:
  resources:
    requests:                    #2
      storage: 1Gi               #2
  accessModes:                   #3
  - ReadWriteOnce                #3
  storageClassName: ""           #4