1. Proposed title of this feature request

Simplify day-2 master node replacement operation

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

One of the key day-2 operation is to perform master node replacement (in case of any issue with the master nodes). As of now the method to perform day-2 master node replacement varies based on the type of installation (IPI/UPI/AI/ABI).

One such use case:

A customer having RHOCP cluster installed using ABI installed method on physical servers having no access to their BMC. As of now the official master node [replacement document](https://docs.openshift.com/container-platform/4.17/backup_and_restore/control_plane_backup_and_restore/replacing-unhealthy-etcd-member.html#restore-replace-stopped-baremetal-etcd-member_replacing-unhealthy-etcd-member) states, BMC access is required to perform master node replacement.

It would be helpful to have a feature similar to OCPSTRAT-784 which enables simplified process of adding compute node across format.

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

A customer having RHOCP cluster installed using ABI installed method on physical servers having no access to their BMC.

4. List any affected packages or components.

agent service