[enterprise-3.11] Issue in file upgrading/automated_upgrades.adoc

[syedriko]

Which section(s) is the issue in?

https://docs.openshift.com/container-platform/3.11/upgrading/automated_upgrades.html#upgrading-efk-logging-stack-dots
https://docs.openshift.com/container-platform/3.11/upgrading/automated_upgrades.html#upgrading-efk-logging-stack-nodots

What needs fixing?

Prior to patching the fluentd DS, take a note of the value of its nodeSelector.
The fluentd DS patching command should look like this:

oc patch daemonset logging-fluentd --type=json -p '[{"op":"replace", "path":"/spec/template/spec/nodeSelector", "value": {"non-existing":"true"}}]'

There should be a extra step added post-upgrade in both "dots" and "no-dots" scenarios that restores the nodeSelector to what it was prior to patching.

[mburke5678]

Closing in favor of https://issues.redhat.com/browse/OSDOCS-1514