Make it easy to have a button run its command inside a pod

Describe the Feature You Want

Easily define a UIButton that runs a command inside a resource's pod.

Current Behavior

UIButton's commands run on the host machine.
A user can have a button trigger a command inside the pod by doing something like:
cmd='kubectl exec "$(tilt get kd $RESOURCE_NAME -ojsonpath='{.status.pods[0].name}')" /path/to/command'

Why Do You Want This?

services often have cli admin interfaces that run inside their pods (e.g., pgsql), and triggering these with buttons could be useful

Additional context
This is probably doable by a simple change to the uibutton extension that just wraps the command with something like the above kubectl exec.

Start by locating the UIButton extension implementation and how it currently executes commands on the host. Review the issue's kubectl exec example and determine how a resource's pod should be selected. Done means a UIButton can run its configured command inside the resource pod, with coverage for the supported behavior.