Allow selecting type of the deployment in k8s

[0x416e746f6e]

Background & motivation

We would like to run kurtosis managed stack for long-ish durations (like a week) for stress-testing, memory leaks detection, chaos-engineering, and so forth.

For this, it would be great if we can configure the type of the workload that kurtosis would create (i.e. Pod, Deployment, StatefulSet, DaemonSet).

Desired behaviour

Currently kurtosis only uses Pod resources for the workloads. These do not survive host migrations, and would not be recreated if killed externally.

Also, for the storage in k8s kurtosis uses PVCs. It would make more sense to use StatefulSets in those situations.

How important is this to you?

Painful; the lack of this feature makes using Kurtosis frictionful.

What area of the product does this pertain to?

CLI: the Command Line Interface

[tedim52]

Hey @0x416e746f6e ! Few questions for you:

Would you ever imagine yourself requiring a mix of deployment types, eg. some Deployments and StatefulSets ? Or depending on your use case, would you run all workloads as either Deployments or StatefulSets?

What use cases could you see imagine using a DaemonSet with a kurtosis package? Maybe there's a service provisioned in the package you need all nodes or something?

When you say it would make more sense to use StatefulSets in situations where Kurtosis uses PVC, I'm assuming you mean using PVCs mounted to StatefulSets as opposed to having those PVCs mounted to Pods?