Comment 43 for bug 1788447

Reviewed: https://review.opencontrail.org/47259
Committed: http://github.com/Juniper/contrail-ansible-deployer/commit/c2784c1e76ec25882239440d1511e0fea5fd4709
Submitter: Zuul v3 CI (<email address hidden>)
Branch: master

commit c2784c1e76ec25882239440d1511e0fea5fd4709
Author: nitishkrishna <email address hidden>
Date: Wed Oct 24 11:49:15 2018 -0700

Initial Commit to support Add Delete of Computes

Includes:
1. Script to read existing cluster and calculate existing, new and deleted roles
2. Changes to provision/reprovision logic to only provision new Computes
3. Reprovision only when existing cluster matches new instances YAML
4. Separation of De-Registering/ Deleting logic

Patch:
Webui and Config Database Not supported due to bugs:
Supporting add/delete of Config DB - https://bugs.launchpad.net/juniperopenstack/+bug/1799269 - Discussed with Shivayogi, will take Satish help to fix
Support add/delete of Web UI - https://bugs.launchpad.net/juniperopenstack/+bug/1799270 - Will have to be fixed with help from Biswajit/Sarin

Implemented review comments
Python requests package will be installed elsewhere

Partial-Bug: #1788447

Change-Id: I4c2ec8b8e605863e4767f06cab5ef40037d07457