I'm referring to this [1] document about creating nfs mounts on kubernetes. But I have couple of issues to be clarified.
That refers to the corresponding field in the yaml: https://github.com/kubernetes/kubernetes/blob/master/pkg/api/types.go#L2089
And it should be on per the document in 1.1 (https://github.com/kubernetes/kubernetes/blob/b9cfab87e33ea649bdd13a1bd243c502d76e5d22/cluster/saltbase/pillar/privilege.sls#L2, you can confirm by creating the pod and running kubectl describe like the docs says).