Bug 1796322

Summary:	Documentation needed for realtime kernel configuration during initial cluster install
Product:	OpenShift Container Platform	Reporter:	Sinny Kumari <skumari>
Component:	Installer	Assignee:	Sinny Kumari <skumari>
Installer sub component:	openshift-installer	QA Contact:	Johnny Liu <jialiu>
Status:	CLOSED ERRATA	Docs Contact:
Severity:	unspecified
Priority:	unspecified
Version:	4.4
Target Milestone:	---
Target Release:	4.4.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-05-13 21:55:33 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Sinny Kumari 2020-01-30 07:18:48 UTC

Description of problem:
With Openshift 4.4 and onward release, Machine Config Operator supports switching from traditional to realtime kernel on RHCOS node. kernel switch can be performed via MachineConfig during a new cluster launch (as day 1) or on a running cluster (as day 2). It will be good to have steps documented in installer repo documentation which would work as a reference for needed users.

Version-Release number of the following components:
Installer master repo doc section https://github.com/openshift/installer/blob/master/docs/user/customization.md

Comment 1 Sinny Kumari 2020-01-30 07:26:37 UTC

Upstream patch - https://github.com/openshift/installer/pull/2992

Comment 3 Johnny Liu 2020-02-05 06:40:26 UTC

LGTM.

Comment 4 Sinny Kumari 2020-04-22 09:39:28 UTC

Needed doc is already at https://github.com/openshift/installer/blob/master/docs/user/customization.md

Comment 6 errata-xmlrpc 2020-05-13 21:55:33 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:0581