Bug 1042206

Summary:	[RFE][heat]: Enable Stack snapshot/rollback
Product:	Red Hat OpenStack	Reporter:	RHOS Integration <rhos-integ>
Component:	openstack-heat	Assignee:	Zane Bitter <zbitter>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Amit Ugol <augol>
Severity:	low	Docs Contact:
Priority:	high
Version:	unspecified	CC:	jschluet, kbasil, markmc, nbarcet, sbaker, sclewis, shardy, srevivo
Target Milestone:	---	Keywords:	FutureFeature, ZStream
Target Release:	7.0 (Kilo)	Flags:	jschluet: needinfo? (kbasil)
Hardware:	Unspecified
OS:	Unspecified
URL:	https://blueprints.launchpad.net/heat/+spec/stack-snapshot
Whiteboard:	upstream_milestone_kilo-1 upstream_status_implemented upstream_definition_approved
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-11-08 16:25:31 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description RHOS Integration 2013-12-12 21:22:14 UTC

Cloned from launchpad blueprint https://blueprints.launchpad.net/heat/+spec/stack-snapshot.

Description:

When we have implemented volume snapshots, a next step could be to allow snapshot of the entire stack, ie save the resolved template at a point in time, along with all resource metadata, and volume point-in-time snapshot, then potentially use a similar method the one we currently provide for on-failure rollback to allow rolling back to a previous stack snapshot.

Specification URL (additional information):

None

Comment 6 Amit Ugol 2015-06-17 11:44:38 UTC

It is known that sometimes updating of a stack would fail.
Knowing that, trying to restore from a snapshot might also fail after an update failure.
A user might want to be able to update a stack but to be able to return to a previous state if the update fails.

Considering this logical assumption of a requirement and this upstream bug [1], its hard to verify this feature until reverting to a previous state works properly.

[1] - https://bugs.launchpad.net/heat/+bug/1301320