concept StatefulSet manifest in category kubernetes

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

The StatefulSet manifest isn’t that different from ReplicaSet or Deployment manifests you’ve created so far. What’s new is the volumeClaimTemplates list. In it, you’re defining one volume claim template called data, which will be used to create a PersistentVolumeClaim for each pod. As you may remember from chapter 6, a pod references a claim by including a persistentVolumeClaim volume in the manifest. In the previous pod template, you’ll find no such volume. The StatefulSet adds it to the pod specification automatically and configures the volume to be bound to the claim the StatefulSet created for the specific pod.