Merge pull request #57529 from xenolinux/generic-volume

OCPBUGS#9375: Add generic ephemeral volumes

Author: sjhala-ccs

modules/security-context-constraints-about.adoc

@@ -331,6 +331,7 @@ sources that are defined when creating a volume:
 * link:https://kubernetes.io/docs/concepts/storage/volumes/#flexvolume[`flexVolume`]
 * link:https://kubernetes.io/docs/concepts/storage/volumes/#flocker[`flocker`]
 * link:https://kubernetes.io/docs/concepts/storage/volumes/#gcepersistentdisk[`gcePersistentDisk`]
+* link:https://kubernetes.io/docs/concepts/storage/ephemeral-volumes/#generic-ephemeral-volumes[`ephemeral`]
 * link:https://kubernetes.io/docs/concepts/storage/volumes/#gitrepo[`gitRepo`]
 * link:https://kubernetes.io/docs/concepts/storage/volumes/#glusterfs[`glusterfs`]
 * link:https://kubernetes.io/docs/concepts/storage/volumes/#hostpath[`hostPath`]