Ask HN: Should Databases Run on Kubernetes?

Hey guys! Recently I read some blogs of DoK (Data on Kubernetes) and watched their interview videos on KubeCon Europe and found that running databases on Kubernetes might be a possibility. And there are some tools like KubeDB, Crossplane, and KubeBlocks. But there are also a lot of concerns, such as data persistence (of course K8s is designed for stateless applications), performance, and complexity. So I’d like to learn more about running databases on K8s. Any suggestions?