The first step to lowering you Kubernetes cluster costs is to analyze your resource usage vs node capabilities.
This can be done locally or via Helm with kube-resource-report . This tool will generate an overview which will help you adjusting your Limits and Requests.
Founder. I have by now studied a lot of world history, Novels, economics, computer science, cryptography, blockchains.
I am evolving my thoughts into longer form posts for reference into topics.