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Bug 1788340

Summary:	[RHEL7] cloud-init Azure byte swap (hyperV Gen2 Only)
Product:	Red Hat Enterprise Linux 7	Reporter:	Dan <danis>
Component:	cloud-init	Assignee:	Eduardo Otubo <eterrell>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Huijuan Zhao <huzhao>
Severity:	medium	Docs Contact:
Priority:	high
Version:	7.7	CC:	dkinkead, eterrell, huzhao, jenander, jgreguske, mtessun, ribarry, vkuznets, xiachen, yacao, yuxisun
Target Milestone:	rc	Keywords:	ZStream
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	1788684 1810063 1810064 (view as bug list)		Environment:
Last Closed:	2020-04-15 12:05:57 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:	1788684, 1797441, 1810063, 1810064

Description Dan 2020-01-07 00:11:29 UTC

Description of problem:
Azure stores the instance ID with an incorrect byte ordering for the first parts. We have a host update that is causing a byte swap, and if the VM is rebooted after, the customer cannot login into their VM. A fix has been approved. We would like this fix to be patched into the current cloud-init packages for 7 and 8. This only impacts Gen2 hyperV images, but these will be updated with cloud-init end of Jan.

The fix is here:
https://github.com/canonical/cloud-init/pull/84

You cannot reproduce without a gen2 VM running on a host, and have a host update.

Comment 2 Rick Barry 2020-01-07 19:48:11 UTC

Dan, thanks for the heads-up. I will clone this BZ to rhel-8 as well.

We'll need to discuss timing and options. I'll follow-up in email.