Also very interested in getting spot instances into the cluster, but looking for a way to: (a) Mix spot and reserved instances, e.g. there should always be at least N instances dedicated. (b) Set the spot bid dynamically; I'm guessing this will be a separate tool—any recommendations?

@quiet-lock-69596 Thanks mate! This looks fantastic.

Not with Pulumi per see. I’ve used it with Helm, e.g. you can use the Kubernetes Provider to make it happen https://www.pulumi.com/registry/packages/kubernetes/api-docs/helm/v3/chart/

Ok, grand. I was poking through the docs and a lot of it was Terraform-modules-oriented. If you've had success deploying and managing it with the Helm chart, then I'll definitely look into setting it up soonish.