1. Proposed title of this feature request

Baremetal Integration with existing Image Registries for OS deployment

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

Customer would like to provision the OS on BM nodes (metal3) using the exiting image registry to host Operating Systems images.

3. Why does the customer need this? (List the business requirements here)

With managing tens of thousands of BM nodes customer also has hundreds of OS images that are integrated in their Image Registry pipeline. Taking advantage of existing tooling reduces the operational overhead. 

4. List any affected packages or components.