Where do Runtime Extensions Run?

Runtime extensions execute in the Runtime you specify. They do not execute in Prodvana's control plane. This gives you the confidence that they are operating with your security model.

Why not a CRD or something else?

We want to keep building simple and accessible to engineers.

Do I have to use Kubernetes?

For now yes. However, Runtime Extensions are flexible enough that we can add additional runners such as Lambda, Cloudrun and plan to do so in the future.