Bug 2228414

Summary:	Missing service_user for nova_compute causes nova hybrid state to fail
Product:	Red Hat OpenStack	Reporter:	Lukas Bezdicka <lbezdick>
Component:	openstack-tripleo-heat-templates	Assignee:	Lukas Bezdicka <lbezdick>
Status:	POST ---	QA Contact:	Khomesh Thakre <kthakre>
Severity:	high	Docs Contact:
Priority:	high
Version:	16.2 (Train)	CC:	jpretori, mburns, vcojot
Target Milestone:	z6	Keywords:	Triaged
Target Release:	16.2 (Train on RHEL 8.4)
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	Cause: Security fix #2186892 introduced requirement of service_user for nova and cinder services. Consequence: Hybrid mode in upgrade does not change configuration by default but change to require service_user causes nova in hybrid state to be unable to work with cinder. Fix: We configure the service_user for nova during the switch to hybrid state. Result:	Story Points:	---
Clone Of:		Environment:
Last Closed:		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 Lukas Bezdicka 2023-08-02 10:55:17 UTC

During investigation of OSP-26886 we noticed that fix for #2186892 introduced breaking change for upgrade.


From now on nova_compute needs to use service_user but that is not set up during the controller upgrade. This blocks volume operations on the cloud breaking the upgrade.

We need to provide nova service_user setting during switch to the hybrid mode of nova_compute.

Comment 4 Lukas Bezdicka 2023-08-09 11:06:43 UTC

I concluded that best WA for this for now is to simply apply the patch on Undercloud before running upgrade prepare.

curl -4 https://review.opendev.org/changes/openstack%2Ftripleo-heat-templates~890324/revisions/3/patch?download | base64 -d | sudo patch -p1 -d /usr/share/openstack-tripleo-heat-templates