At Banzai Cloud we try to provide our users with a unified, cloud and on-premise-agnostic authentication and authorization mechanism. Note that our Pipeline platform supports cloud provider-managed Kubernetes and, as of recently, our own Kubernetes distribution - the Pipeline Kubernetes Engine, PKE. We also recently introduced an open source project, JWT-to-RBAC (you can read more about that project, here), designed to solve authentication and authorization challenges within the Pipeline platform in a cloud provider-agnostic way.