Comment (by Roland Haas):

Very good.

Would it be possible to change the installed packages to closer follow https://nbviewer.jupyter.org/github/nds-org/jupyter-et/blob/master/CactusTutorial.ipynb ? The "vim" package (while I approve of your choice of editor) is probably not required, is it?

I believe that the

RUN pip install --upgrade pip
RUN pip install matplotlib numpy jupyter

might benefit from being followed by

rm -rf .cache/pip .pip

or similar to get rid of any caches that pip created (there's also a --no-cache-dir option which may help).

Note: updating the jupyter-et repo triggers a build of the ndslabs/jupyter-et docker image, but (at least right now) one has to manually run docker pull on etkhub.ndslabs.org

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2234/trouble-in-the-tutorial-server