If a cluster has Control Plane Machines that are not indexed from 0, the CPMS currently will go degraded.

For example, if you have already replaced the machines and they are indexed as `3`, `4`, `5`, the cluster will degrade.

status:
  conditions:
  - lastTransitionTime: "2022-09-22T11:49:54Z"
    message: Missing 3 available replica(s)
    observedGeneration: 1
    reason: UnavailableReplicas
    status: "False"
    type: Available
  - lastTransitionTime: "2022-09-22T13:25:40Z"
    message: Observed 2 index(es) in excess
    reason: ExcessIndexes
    status: "True"
    type: Degraded
  - lastTransitionTime: "2022-09-22T13:25:40Z"
    message: ""
    reason: OperatorDegraded
    status: "False"
    type: Progressing
  observedGeneration: 1
  readyReplicas: 2
  replicas: 2
  unavailableReplicas: 3

100%

1. Create a cluster
2. Replace each control plane machine so that you end up with machines master-3, master-4 and master-5
3. Observe CPMS status

CPMS goes degraded because the current control plane machine names

CPMS should be happy with the current Control Plane Machine names