Bug 2008823

Summary:	OCP 4.8 BM IPI (ipv6 only) install fails with no ip assigned to bootstrap machine if there's no DHCP6 pool configured
Product:	OpenShift Container Platform	Reporter:	Abhijeet Sadawarte <asadawar>
Component:	Installer	Assignee:	Steven Hardy <shardy>
Installer sub component:	OpenShift on Bare Metal IPI	QA Contact:	Victor Voronkov <vvoronko>
Status:	CLOSED ERRATA	Docs Contact:
Severity:	urgent
Priority:	urgent	CC:	dmoessne, jmalde, shardy, vvoronko
Version:	4.8	Keywords:	Triaged, UpcomingSprint
Target Milestone:	---
Target Release:	4.8.z
Hardware:	Unspecified
OS:	Unspecified
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Clone Of:		Environment:
Last Closed:	2021-10-27 08:15:28 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:	1972524
Bug Blocks:

Description Abhijeet Sadawarte 2021-09-29 09:25:33 UTC

$ openshift-install version
4.8.9

Platform: BM IPI 

What happened?
If there's no DHCP6 pool configured for cluster machines, the bootstrap VM does not get the IPv6 IP address since the below two NM fields are not configured by default:

~~~
ipv6.dhcp-duid:                         
ipv6.dhcp-iaid: 
~~~

Anything else we need to know?

It appears that the bootstrap vm fix is landed in OCP 4.9:

~~~
https://github.com/openshift/machine-config-operator/blob/master/templates/common/on-prem/files/NetworkManager-onprem.conf.yaml#L9..L10

https://github.com/openshift/installer/blob/master/data/data/bootstrap/baremetal/files/etc/NetworkManager/conf.d/99-baremetal.conf
~~~

Comment 1 Steven Hardy 2021-09-29 09:57:31 UTC

This was fixed via https://github.com/openshift/installer/pull/5110 - I'll backport it since it's only fixed since 4.9

Comment 14 errata-xmlrpc 2021-10-27 08:15:28 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 (OpenShift Container Platform 4.8.17 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/RHBA-2021:3927