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Bug 1904889

Summary: OVS bridge port is deleted when creating a linux-bridge in an Openshift-SDN cluster [rhel-8.3.0.z]
Product: Red Hat Enterprise Linux 8 Reporter: RHEL Program Management Team <pgm-rhel-tools>
Component: nmstateAssignee: Fernando F. Mancera <ferferna>
Status: CLOSED ERRATA QA Contact: Mingyu Shi <mshi>
Severity: urgent Docs Contact:
Priority: unspecified    
Version: 8.3CC: ellorent, ferferna, fge, jiji, jishi, myakove, network-qe, phoracek, till
Target Milestone: rcKeywords: Triaged, ZStream
Target Release: 8.0Flags: pm-rhel: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: nmstate-0.3.4-17.el8_3 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 1903712 Environment:
Last Closed: 2020-12-22 09:04:18 UTC Type: ---
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: 1903712    
Bug Blocks: 1908363    
Attachments:
Description Flags
verified.log none

Comment 4 Mingyu Shi 2020-12-07 07:17:39 UTC
Verified with version: nmstate-0.3.4-16.el8_3.noarch

If only consider this bug itself, with a sanity verification, the fixed version works well, but a situation should be considered: once nmstate rollbacks(for example, you may configure something wrong, or in command line you do 'nmstatectl edit' then just quit without modifying), the vxlan_sys_4789 would be removed.

Comment 5 Petr Horáček 2020-12-07 08:05:45 UTC
That would be a problem for kubernetes-nmstate. We perform/experience rollbacks quite frequently. We will need that fixed too, otherwise we are just delaying the incident.

Comment 9 Mingyu Shi 2020-12-07 08:16:13 UTC
trigger(In reply to Mingyu Shi from comment #4)
> Verified with version: nmstate-0.3.4-16.el8_3.noarch
> 
> If only consider this bug itself, with a sanity verification, the fixed
> version works well, but a situation should be considered: once nmstate
> rollbacks(for example, you may configure something wrong, or in command line
> you do 'nmstatectl edit' then just quit without modifying), the
> vxlan_sys_4789 would be removed.

update:
Only if 'vlan_sys_4789' is included in the desired state, then nmstate rollback will remove it, otherwise it is preserved on rollback. The situation is better than I wrote above.

Comment 10 Mingyu Shi 2020-12-07 08:23:06 UTC
(In reply to Petr Horáček from comment #5)
> That would be a problem for kubernetes-nmstate. We perform/experience
> rollbacks quite frequently. We will need that fixed too, otherwise we are
> just delaying the incident.

Sorry, what I said was partially wrong, can you take a look on #comment9 ? I think it's much better.

Comment 11 Petr Horáček 2020-12-07 08:32:42 UTC
I see, thanks for the clarification, Mingyu :) Indeed, this looks much better and would not be a problem for kubernetes-nmstate use-case.

Comment 18 Mingyu Shi 2020-12-09 11:01:21 UTC
Created attachment 1737874 [details]
verified.log

Verified with versions:
NetworkManager-1.26.0-9.el8_3.x86_64
nmstate-0.3.4-17.el8_3.noarch
nmstate-plugin-ovsdb-0.3.4-17.el8_3.noarch
python3-libnmstate-0.3.4-17.el8_3.noarch
DISTRO=RHEL-8.3.0-updates-20201031.0
Linux hpe-dl380pgen8-02-vm-14.hpe2.lab.eng.bos.redhat.com 4.18.0-240.1.1.el8_3.x86_64 #1 SMP Fri Oct 16 13:36:46 EDT 2020 x86_64 x86_64 x86_64 GNU/Linux
python3-openvswitch2.13-2.13.0-39.el8fdp.x86_64
openvswitch2.13-2.13.0-39.el8fdp.x86_64
openvswitch-selinux-extra-policy-1.0-22.el8fdp.noarch

If vxlan_sys_4789 is not touched in nmstate, it will always there.

Comment 25 errata-xmlrpc 2020-12-22 09:04:18 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Bug fixes for nmstate when using with OpenvSwitch), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:5659