Investigate How Autoscaling Config Interacts With CAPI Node Count Config

[jonathanmeier5]

[jonathanmeier5]

Adding some discovery notes to this:

I'll verify this further, but so far in testing I think we need minCount <= count <= maxCount.

If you don't deploy it that way, you can enter a bad state where count+{amount autoscaler wants to scale up} < minCount, and cluster autoscaler refuses to scale up the machine deployment.

That said, the field could be optional, we would just need to populate it with autoscaler's minCount value.

[jonathanmeier5]

Done. Proceeding to #3449.