Bug 1893977

Summary:	node-ca pod become unable to work after OCP upgrade if using taints feature
Product:	OpenShift Container Platform	Reporter:	Oleg Bulatov <obulatov>
Component:	Image Registry	Assignee:	Oleg Bulatov <obulatov>
Status:	CLOSED ERRATA	QA Contact:	Wenjing Zheng <wzheng>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	4.4	CC:	aos-bugs
Target Milestone:	---
Target Release:	4.6.z
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	1850465	Environment:
Last Closed:	2020-12-14 13:50:52 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1850465
Bug Blocks:	1915081

Description Oleg Bulatov 2020-11-03 09:08:07 UTC

Many Cluster Operators become unable to work after OCP upgrade if using taints feature

Version information:

$ oc version
Client Version: 4.4.0-202004250654-2576e48
Server Version: 4.4.3
Kubernetes Version: v1.17.1

How reproducible:

Always

Steps to Reproduce: 

1. Add taints one of worker nodes

$ oc adm taint nodes worker5.example.com app=batch:NoSchedule

2. Upgrade OCP

$ oc adm upgrade --to=<version>

Actual results: 

Many Cluster Operator pods launched by daemonset disappeared after OCP upgrade.

Expected results: 

OCP upgrade finishes with no problem.

Comment 5 errata-xmlrpc 2020-12-14 13:50:52 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 (Moderate: OpenShift Container Platform 4.6.8 security and bug fix update), 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/RHSA-2020:5259