EphemeralVolumeClaim operator

A Kubernetes operator for EphemeralVolumeClaim custom resources, which internally map to the same-named, same-labelled PersistentVolumeClaim, but automatically delete themselves after a period of no use.

This is a demo project used as a step-by-step tutorial for Kopf, Kubernetes Operator Pythonic Framework.

The problem statement is described with more details here:

• https://kopf.readthedocs.io/en/stable/walkthrough/problem/