Bug 2008296

Summary:	[ovn][migration] Mark the migration to ML2/OVN as supported from ML2/OVS with hybrid firewall
Product:	Red Hat OpenStack	Reporter:	Slawek Kaplonski <skaplons>
Component:	python-networking-ovn	Assignee:	OSP Team <rhos-maint>
Status:	CLOSED DUPLICATE	QA Contact:	Roman Safronov <rsafrono>
Severity:	high	Docs Contact:
Priority:	high
Version:	16.2 (Train)	CC:	apevec, ekuris, eolivare, jamsmith, jlibosva, lhh, majopela, scohen
Target Milestone:	z3	Keywords:	FutureFeature, 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:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-06-14 17:13:24 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:

Description Slawek Kaplonski 2021-09-27 20:03:01 UTC

Migration from ML2/OVS with iptables_hybrid firewall driver to ML2/OVS works and should be supported.
We need to test it officially (but most of our d/s CI is already testing that).
We will also need to update our existing docs.
Currently in https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/16.1/html/networking_with_open_virtual_network/migrating-ml2ovs-to-ovn we have info that such migration isn't supported (point 3.3. and preface to the article) we have clear statement that such scenario isn't supported. We should change that to say that it is supported and we should explain what are the cons of that (additional linuxbridge between br-int and VM).

Comment 3 Roman Safronov 2021-10-06 12:45:09 UTC

Was verified on RHOS-16.2-RHEL-8-20210929.n.0. ovs2ovn migration procedure completed successfully. VMs that were created before migration to ovn remain accessible.

Was verified also RHOS-16.1-RHEL-8-20210928.n.1. Tested also that live migration of the VMs that were created before migration to ovn was successful.

Comment 4 Roman Safronov 2021-10-07 13:34:23 UTC

Note: while OVN migration procedure itself is passing successfully and workload VMs are usable after the migration,the following issue was found https://bugzilla.redhat.com/show_bug.cgi?id=2011450

Comment 7 Jakub Libosvar 2022-06-14 17:13:24 UTC


*** This bug has been marked as a duplicate of bug 2075039 ***