Bug 1817316

Summary:	Descheduler only honors short hand strategy names
Product:	OpenShift Container Platform	Reporter:	RamaKasturi <knarra>
Component:	kube-scheduler	Assignee:	Mike Dame <mdame>
Status:	CLOSED ERRATA	QA Contact:	RamaKasturi <knarra>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	4.4	CC:	aos-bugs, mfojtik
Target Milestone:	---
Target Release:	4.5.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Technology Preview
Doc Text:	Package(s) providing the Technology Preview: Descheduler Description of the Technology Preview: Descheduler Operator now supports full upstream Descheduler strategy names (for more 1-to-1 config)	Story Points:	---
Clone Of:
Clones:	1817318 (view as bug list)		Environment:
Last Closed:	2020-05-04 11:47:28 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:
Bug Depends On:
Bug Blocks:	1817318

Description RamaKasturi 2020-03-26 06:17:15 UTC

Description of problem:
I see that the descheduler only honors short hand strategy names like duplicates, interpodaffinity, nodetaints etc where as it should also honor strategies "RemoveDuplicates" , RemovePodsViolatingInterPodAntiAffinity etc.

Version-Release number of selected component (if applicable):
4.4.0-0.nightly-2020-03-24-101858

How reproducible:
Always

Steps to Reproduce:
1. Install descheduler operator
2. Now set the strategy as "RemoveDuplicates"
3.

Actual results:
Descheduler does not create any kubedescheduler cluster object with this strategy and it gives below error.
and error is seen in the operator logs E0324 16:12:46.123566       1 target_config_reconciler.go:297] key failed with : expected one of the duplicates,interpodantiaffinity,lownodeutilization,nodeaffinity,nodetaints to be enabled but found following invalid strategies RemoveDuplicates

Expected results:
Descheduler should honor the startegy name "RemoveDuplicates"

Additional info:

Comment 1 Mike Dame 2020-03-26 13:50:06 UTC

Fixed in https://github.com/openshift/cluster-kube-descheduler-operator/pull/100

Comment 5 Mike Dame 2020-03-27 14:08:10 UTC

Switching this to 4.5, please verify it against master with a manual deployment (these steps should be sufficient now: https://github.com/openshift/cluster-kube-descheduler-operator#quick-development, no need to go through the index image method if you don't want to)

That will allow https://bugzilla.redhat.com/show_bug.cgi?id=1817318 to be backported to 4.4 in https://github.com/openshift/cluster-kube-descheduler-operator/pull/104

Comment 9 errata-xmlrpc 2020-05-04 11:47:28 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