[WIP] Foundations for Multiple Clusters within Common Inventory Files + Centralized Kafka Clusters + Central Control Center Metrics

[nerdynick]

Description

Provides the basics for multiple inter-connected platform/cluster installations with single set of inventory files. Provides the logic for a separate/centralized Control Center Metrics cluster.

Helps to address remaining features outlined in PR #197 that where not addressed in the 6.x updates.

This PR requires PR #563 prior to approval

Type of change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

How Has This Been Tested?

Personal Lab of 2 AWS EC2 based clusters

Test Configuration:

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] Any dependent changes have been merged and published in downstream modules
• [x] Any variable changes have been validated to be backwards compatible

[nerdynick]

Be aware, this change looks more significant then it actually is due to the dependence on PR #563

[nsharma-git]

@nerdynick Is this PR still valid. If that's the case, can you please resolve the conflict and update it.

[nsharma-git]

@nerdynick A friendly reminder

[nsharma-git]

Closing this PR as it has conflicts and the owner has not responded since a while. We will raise another PR after resolving the conflicts.