TPU

Part 3 of a 3-part series on porting EKS/Karpenter autoscaling patterns to GKE. Part 1 covered the mental model — a solver searching a space versus an author ranking a list. Part 2 covered diversity, consolidation, and the where/when split between ComputeClass and WorkloadClass. This one is the expensive end of the fleet, plus the promised answer on portability.