Merge pull request #36654 from xenolinux/bug1889217

BZ1889217: Run PVs on master nodes

Author: mikemckiernan

modules/persistent-storage-local-tolerations.adoc

@@ -52,4 +52,14 @@ To configure local volumes for scheduling on tainted nodes:
 <4> The volume mode, either `Filesystem` or `Block`, defining the type of the local volumes.
 <5> The path containing a list of local storage devices to choose from.
 
+. Optional: To create local persistent volumes on only tainted nodes, modify the YAML file and add the `LocalVolume` spec, as shown in the following example:
++
+[source,yaml]
+----
+spec:
+  tolerations:
+    - key: node-role.kubernetes.io/master
+      operator: Exists
+----
+
 The defined tolerations will be passed to the resulting daemon sets, allowing the diskmaker and provisioner pods to be created for nodes that contain the specified taints.