add verify script

[jhamman]

Just jotting down some ideas from jupyterhub/repo2docker#93

Do not merge.

cc @alando46

[alando46]

thanks for sharing @jhamman this is great!

Question-

import pytest
import dask.distributed.Client

@pytest.fixture(scope='module')
def client():
    with Client(n_workers=4) as dask_client:
        yield dask_client

Would binder run this on the deployed k8s cluster?

[jhamman]

@alando46 - that could be possible. For now, I'm just thinking of this as a tool during the image build, where k8s is likely not available. You could imagine skipping some tests unless a k8s cluster is available. I think connecting to a running k8s cluster is just an extension of this though.