kubernetes/clusterdock support for test runs

[SandishKumarHN]

kubernetes/clusterdock support for test runs

[afoerster]

@SandishKumarHN will these be separate from the existing integration tests? What folder structure are you thinking of?

[SandishKumarHN]

Kubectl can use existing images, so I need to arrange a salves images. the plan is to make cluster instead of standalone. we can keep same structure.

[afoerster]

I think we should have this run side-by-side with the original tests. The nice thing about single node Docker image is that it's light weight. ClusterDock won't run well on laptops, so it's cool to have but the existing tests should stay the default for now.