title: how to create helm chart of postgres with pvc
body: <p>I would like to create a helm chart for PostgreSQL with PVC (persistent volume claim).</p>
  <p>I've looked at trying katacoda <a href="https://www.katacoda.com/courses/kubernetes/helm-package-manager" rel="noreferrer">https://www.katacoda.com/courses/kubernetes/helm-package-manager</a>
  Create Postgres helm chart with pvc.</p>
  <p>How might I do this?</p>