Audit machinepool CRD

[mpinchover]

What would you like to be added (User Story)?

As a developer, I need to have confidence in the MP design.

Detailed Description

Need audit of the MP design.

From @mboersma: "We should audit the MachinePool CRD (towards v1beta2), e.g. "MachinePool has two failureDomain fields: .spec.failureDomains and .spec.template.spec.failureDomain"
"MachinePools are currently reusing the MachineSpec struct which is also used in MD / MS. This probably has to change."

Anything else you would like to add?

No response

Label(s) to be applied

/area machinepool

[fabriziopandini]

Note: Breaking API changes won't be allowed till when we will working to the new API version (I would expect not before removing v1beta1)

[fabriziopandini]

/triage accepted
/help

[k8s-ci-robot]

@fabriziopandini:
This request has been marked as needing help from a contributor.

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In response to this:

/triage accepted
/help

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