Bug 2028474

Summary:	[OCPonRHV] Remove clustername length limitation(metadata name)
Product:	OpenShift Container Platform	Reporter:	Javier Coscia <jcoscia>
Component:	Installer	Assignee:	Michael Engel <mengel>
Installer sub component:	OpenShift on RHV	QA Contact:	Michael Burman <mburman>
Status:	CLOSED ERRATA	Docs Contact:
Severity:	medium
Priority:	medium	CC:	calfonso, jpasztor, mburman, mengel, pelauter, sdharma
Version:	4.9
Target Milestone:	---
Target Release:	4.12.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-01-17 19:46:49 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 Javier Coscia 2021-12-02 12:56:09 UTC

Version:

OCP 4.9

Platform:
oVirt
* IPI 

What happened?


User reports that they are not able to create OCP cluster in RHV IPI where the name of the cluster is > 14 characters:

~~~
Sorry, your answer is not valid: it must not be more than 14 characters".
cluster name "<morethan14charactername>"
~~~


Looking at https://github.com/openshift/installer/blob/master/pkg/asset/installconfig/clustername.go#L45-L50 I see there's a note stating that this limitation should be removed once BZ 1915122 gets fixed.

BZ 1915122 got fixed already and shipped to OCP 4.8 and 4.7 (1983695), thus we would need to remove this limitation for users to be able to create clusters with a name > than 14 characters.

Comment 2 Janos Bonic 2022-05-12 11:35:08 UTC

@pelauter can you please advise on the priority and severity of this issue? Do we want to implement it, or close as WONTFIX?

Comment 3 Michael Engel 2022-08-11 08:15:31 UTC

In the context of https://bugzilla.redhat.com/show_bug.cgi?id=1915122 a limitation in the mdns-publisher was introduced that caps the length of a cluster name to 63 chars (by hashing longer names):
https://github.com/openshift/mdns-publisher/pull/24
Therefore, instead of removing the cluster name length completely, we'll increase it from 14 to 63 chars.

Comment 6 Michael Burman 2022-09-05 14:07:48 UTC

Verified on - 4.12.0-0.nightly-2022-09-02-194931

I have used a medatada cluster name called 'longclustername123'(18 characters)
https://api.longclustername123.ocp.rhev.x.x.x.x.x:6443/version

INFO API v1.24.0+a097e26 up                       

INFO Install complete!                            

INFO Access the OpenShift web-console here: https://console-openshift-console.apps.longclustername123.ocp.rhev.x.x.x.x

oc get clusterversion
NAME      VERSION                              AVAILABLE   PROGRESSING   SINCE   STATUS
version   4.12.0-0.nightly-2022-09-02-194931   True        False         92s     Cluster version is 4.12.0-0.nightly-2022-09-02-194931

The 14 characters limitation is gone now and cluster is installed successfully.

Comment 18 errata-xmlrpc 2023-01-17 19:46:49 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 4.12.0 bug fix and security 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-2022:7399