1. Proposed title of this feature request

API to monitor cluster scale out

2. What is the nature and description of the request?

we add additional node to existing cluster via zip siteconfig and we would like to monitor the status of the addition of those nodes ( example host discovery status, addition to the cluster status and finally it should show ready or failed with any error)

3. Why does the customer need this? (List the business requirements here)
to be aware of status of cluster scale out

4. List any affected packages or components.