Exec returns an `oc exec` Cmd to run cmd on o.

ExecContainer returns an `oc exec` Cmd to run cmd on o.

NewCURLLogGenerator creates a pod that will cURL `count` lines to an endpoint, waiting for `delay` between each line.

NewLogGenerator creates a pod that will print `count` lines to stdout, waiting for `delay` between each line.

NewSocatPod creates pods with socat software which allow advance network call e.g.