Autoscaling is honestly a minor thing (I have yet to use Autoscaling other than cluster autoscaling since 2016) and autotuning... what autotuning are you talking about? The binpacking support?

Also, I do wonder what "elegant way" would be, considering that k8s is a very elegant system (once you notice that YAML is just one of the serialization formats to make it easier for raw API access by humans).