Support OVN 2.12 in Stein

[Denis Karpov]

This is a clone of #1853272 for Stein.

These fixes need to be backported to support OVN 2.12 in Stein:

https://review.opendev.org/#/c/694453/
https://review.opendev.org/#/c/697237/

Background: I'm using OpenStack Stein as part of a development project R&D infra; as soon as system accumulates enough tenant load OVN controllers start to be CPU overloaded at controllers and SRIOV hypervisors, some traffic gets dropped at controllers.

[Denis Karpov (denis-karpov)]

trivial cherrypick of https://review.opendev.org/#/c/694453/ "Use ovn-ctl script to start OVN ovsdb-servers"

[Denis Karpov (denis-karpov)]

non-trivial cherrypick of https://review.opendev.org/#/c/697237/ "ovn standalone: Start OVN ovsdb-servers using the kolla startup script"

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/stein
Review: https://review.opendev.org/703784

[Denis Karpov (denis-karpov)]

Pushed for review:

https://review.opendev.org/703784 ovn standalone: Start OVN ovsdb-servers using the kolla startup script

https://review.opendev.org/703785 Use ovn-ctl script to start OVN ovsdb-servers

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/stein
Review: https://review.opendev.org/704115

[OpenStack Infra (hudson-openstack)]

Change abandoned by Denis Karpov (<email address hidden>) on branch: stable/stein
Review: https://review.opendev.org/703785
Reason: Backported commit needs to have same change-id as original.
New changeset

https://review.opendev.org/704115 Use ovn-ctl script to start OVN ovsdb-servers

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/stein
Review: https://review.opendev.org/704122

[OpenStack Infra (hudson-openstack)]

Change abandoned by Denis Karpov (<email address hidden>) on branch: stable/stein
Review: https://review.opendev.org/703784
Reason: Backported changesets need to have same change-id as the original.

New changeset:

https://review.opendev.org/704122 ovn standalone: Start OVN ovsdb-servers using the kolla startup script

[OpenStack Infra (hudson-openstack)]

Change abandoned by Denis Karpov (<email address hidden>) on branch: stable/stein
Review: https://review.opendev.org/704115
Reason: There is little chance for this to be accepted and even less for OVN 2.12 RPM package to be accepted in RDO Stein, so abandoning. Found a different solution that applies in my deployment an fixes the OVN scalability/performance issue - cbasically if one builds OVN packages from the branch 'branch-2.12', it's runtime director structure is not changed there, so it is a matter of only patching containers ovsdb and ovn-controller containers installing these patches during deployment/update, no source level patches are needed.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Denis Karpov (<email address hidden>) on branch: stable/stein
Review: https://review.opendev.org/704122
Reason: There is little chance for this to be accepted and even less for OVN 2.12 RPM package to be accepted in RDO Stein, so abandoning. Found a different solution that applies in my deployment an fixes the OVN scalability/performance issue - cbasically if one builds OVN packages from the branch 'branch-2.12', it's runtime director structure is not changed there, so it is a matter of only patching containers ovsdb and ovn-controller containers installing these patches during deployment/update, no source level patches are needed.

[wes hayutin (weshayutin)]

reopen if required please. thanks

[Launchpad Janitor (janitor)]

[Expired for tripleo because there has been no activity for 60 days.]