[networking-ovn][octavia] Member Batch Update is not properly supported in Networking-OVN

[Reedip]

In Octavia, there is a functionality to :
- Create New Members
- Update existing members
- Delete some existing members
together in a single command , and it is called Member Batch Update [1].

Octavia's Amphorae Driver supports this. However, the OVN Provider Driver for Octavia does not 'currently' fulfill this requirement.

There is a functionality miss which needs to be addressed.

[1]:https://developer.openstack.org/api-ref/load-balancer/v2/index.html?expanded=batch-update-members-detail#batch-update-members

[Reedip (reedip-banerjee-deactivatedaccount)]

Patch in works: https://review.openstack.org/#/c/605343/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/605343
Committed: https://git.openstack.org/cgit/openstack/networking-ovn/commit/?id=e89a8a25633117c2bed2fd87a2451a571d33cb62
Submitter: Zuul
Branch: master

commit e89a8a25633117c2bed2fd87a2451a571d33cb62
Author: Reedip Banerjee <email address hidden>
Date: Wed Dec 5 13:40:11 2018 +0530

    Add support for Member Batch Update

    Currently the member batch update is not in supported in the same
    manner as is expected by Octavia.
    This patch fixes the same.

    Closes-Bug: #1806844
    Change-Id: I8678392b953b92f1dd6cd5d44c1d5bcee6cc92bf

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/networking-ovn 6.0.0.0b1 development milestone.