Bug 1449607 - RFE: Rescue a volume backed instance
Summary: RFE: Rescue a volume backed instance
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-nova
Version: 9.0 (Mitaka)
Hardware: x86_64
OS: Linux
low
medium
Target Milestone: ga
: ---
Assignee: Lee Yarwood
QA Contact: OSP DFG:Compute
URL:
Whiteboard:
: 1492226 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-05-10 11:05 UTC by Chaitanya Shastri
Modified: 2023-08-08 15:39 UTC (History)
22 users (show)

Fixed In Version: openstack-nova-21.1.0-0.20200425164546.347d656.el8ost
Doc Type: Enhancement
Doc Text:
Clone Of:
Environment:
Last Closed: 2023-06-28 17:59:03 UTC
Target Upstream Version: Ussuri
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Launchpad 1453779 0 None None None 2017-05-10 11:50:03 UTC
OpenStack gerrit 693849 0 'None' MERGED Virtual instance rescue with stable disk devices 2021-02-07 23:22:16 UTC
OpenStack gerrit 694033 0 None MERGED Add COMPUTE_RESCUE_BFV trait 2021-02-07 23:22:16 UTC
OpenStack gerrit 694063 0 'None' MERGED Boot from volume instance rescue 2021-02-07 23:22:17 UTC
OpenStack gerrit 700811 0 None MERGED virt: Provide block_device_info during rescue 2021-02-07 23:22:17 UTC
OpenStack gerrit 700812 0 None MERGED libvirt: Add support for stable device rescue 2021-02-07 23:22:17 UTC
OpenStack gerrit 700837 0 None MERGED docs: Add stable device rescue docs 2021-02-07 23:22:17 UTC
OpenStack gerrit 701429 0 None MERGED compute: Report COMPUTE_RESCUE_BFV and check during rescue 2021-02-07 23:22:17 UTC
OpenStack gerrit 701430 0 None MERGED api: Introduce microverion 2.87 allowing boot from volume rescue 2021-02-07 23:22:17 UTC
OpenStack gerrit 701431 0 None MERGED libvirt: Support boot from volume stable device instance rescue 2021-02-07 23:22:17 UTC
OpenStack gerrit 701434 0 None MERGED compute: Add stable device rescue tests with BFV instances 2021-02-07 23:22:17 UTC
Red Hat Issue Tracker OSP-3139 0 None None None 2022-04-13 19:51:12 UTC
Red Hat Knowledge Base (Solution) 3191962 0 None None None 2017-09-21 21:18:41 UTC

Description Chaitanya Shastri 2017-05-10 11:05:10 UTC 
Description of problem:
Do we support rescuing a volume backed instance in OSP9?

I found a similar upstream bug for Icehouse version and seems that it was not supported at that time: https://bugs.launchpad.net/nova/+bug/1453779

Is it possible to include this feature in future OSP releases? 

Version-Release number of selected component (if applicable):
OSP9

How reproducible:
Always

Steps to Reproduce:
1. Boot an instance from a volume.
2. Try to rescue it using 'nova rescue <id>'

Actual results:
Cannot rescue a volume backed instance

Expected results:
Should be able to rescue volume backed instance
Comment 1 Matthew Booth 2017-05-19 09:17:04 UTC 
No, this isn't supported. There is work upstream to make fundamental changes to the way rescue works in the libvirt driver, but it is not currently on the upstream priority list. I'm going to mark this as an RFE.
Comment 2 Matthew Booth 2017-08-02 17:10:43 UTC 
Lee's original patch series: https://review.openstack.org/#/q/project:openstack/nova+branch:master+topic:bp/virt-rescue-stable-disk-devices
Comment 3 Lee Yarwood 2017-09-15 21:35:01 UTC 
*** Bug 1492226 has been marked as a duplicate of this bug. ***
Comment 8 Alex Stupnikov 2019-05-16 09:20:06 UTC 
Is it possible to triage this RFE?

BR, Alex.
Comment 9 Alex Stupnikov 2019-05-16 09:21:40 UTC 
There is an upstream BP: https://blueprints.launchpad.net/nova/+spec/volume-backed-server-rescue
Comment 10 ldenny 2020-05-18 01:00:57 UTC 
Hi Team,

Are there plans to backport this to OSP16?

Thank you.
Comment 11 Lee Yarwood 2020-05-18 09:27:13 UTC 
(In reply to ldenny from comment #10)
> Hi Team,
> 
> Are there plans to backport this to OSP16?
> 
> Thank you.

No, we unfortunately can't backport this to OSP16 given the required API changes.
Comment 16 spower 2022-07-05 15:06:19 UTC 
TRAC team have stated there will be no RFEs in zstreams for OSP 17.0 so moving this to 17.1. Any questions please contact rhos-trac.
Comment 19 Artom Lifshitz 2022-08-23 16:27:32 UTC 
This will need an enhancement doctext once this graduates out of tech preview (https://bugzilla.redhat.com/show_bug.cgi?id=2120743)
Comment 22 Artom Lifshitz 2023-06-28 17:59:03 UTC 
Closing as CURRENTRELEASE. The code is present in 17.0 and 17.1, but no further QE work will be performed due to lack of capacity. This puts this RFE into the "implicitly supported" category like most Nova features that originate in the community and that appear in our OSP code without much involvement from Red Hat engineers. If a significant enough bug ends up being reported for this feature, we will re-evaluate the QE situation.

There will, however, be documentation written for this feature: https://issues.redhat.com/browse/RHOSPDOC-1275.
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