UCS Manager ML2 driver needs to support multiple UCS Managers

[Sandhya Dasu]

The UCS Manager plugin currently assumes that there is a single UCS Manager instance per Neutron server instance. In larger deployments, it is possible that there are several UCS Manager instances where each instance controls a subset of hosts. This is different from a UCS Manager in a redundant setup. In this case, each Fabric Interconnect and UCS Manager instance are responsible for managing a subset of hosts within the cloud.

The UCS Manager plugin should be able to detect the UCS Manager instance that manages the host where the VM is being launched. The plugin then proceeds to configure the correct UCS Manager instance with the appropriate configuration.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/221299

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/221299
Committed: https://git.openstack.org/cgit/openstack/networking-cisco/commit/?id=7c50b028bec51cdb971896f40e1e2cdeef295104
Submitter: Jenkins
Branch: master

commit 7c50b028bec51cdb971896f40e1e2cdeef295104
Author: Sandhya Dasu <email address hidden>
Date: Thu Oct 15 11:10:33 2015 -0400

    Support for multiple UCS Managers

    Cisco ML2 UCS Manager plugin us being extended to support multiple UCS
    Manager instances within a single Openstack cloud.

    Change-Id: I890470a17b522b6e39a2578937c0537bcf4c09cf
    Closes-Bug: #1491025

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/kilo
Review: https://review.openstack.org/247207

[Abishek Subramanian (absubram)]

No longer proposing this for back port due to the db and config changes. Apologies.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Abishek Subramanian (<email address hidden>) on branch: stable/kilo
Review: https://review.openstack.org/247207
Reason: Due to the config changes and also db changes, this cannot be a candidate for back porting and hence abandoning this proposal.