Run each slicer instance in slicer-notebook on a separate virtual screen

[lassoan]

This is a follow-up task from #33.

VNC viewing show two applications when multiple notebooks have been started:

https://user-images.githubusercontent.com/219043/82088418-b5b9e400-96bf-11ea-86d6-e6cf796f168d.png

JupyterNotebooksLib.AppWindow method automatically brings the current application forward but it would be nice if Slicer application windows would not overlap with each other but have their own dedicated screen.

[surajpaib]

Hi @lassoan

Was checking around to see if there's any mention of this feature! I'm using the slicer jupyter notebook on a server as a way to share our results.

Noticed that when different users use the jupyter notebook, they all have access to the same window and interactions propagate. I believe adding a new slicer instance would enforce session isolation as well.

I can help test and debug if you do decide to add this feature

Thanks!

[lassoan]

The issue is about separation of multiple notebooks (for the same user).

Separation between users should probably happen at a higher level. For example, see how this docker image works on binder, which uses jupyterhub under the hood, spawning a new container instance for each user. Probably you want to set this up anyway, because you don't want to give anonymous users direct access to your server directly anyway.

[lassoan]

If you have an idea or prototype for a solution for separate virtual display for each notebook (which could also separate users, if they connect to different notebooks) then let me know.

[surajpaib]

Thanks for the prompt response!

I assumed this issue would cover the case of multiple users interacting with different views as well. But jupyterhub seems like a much better solution for my particular usecase. Thank you for directing me to that.

[bveeni]

Hey @surajpaib
I am also trying to do same , running slicer notebooks on separate virtual screen.
For this, I created dockerfile, using jupyterhub image and installed all the required components for slicer notebook on this container.
For now, I am trying to get this done for single user.
I am able to bring this slicer notebook under menu options, however, when I tried to create a new slicer notebook , the kernel slicer failed to start.
Do you have any sample dockerfile or any reference on if you have successfully integrated this slicer notebook in jupyterhub.
If so, please kindly let me know.
dockerfile.txt

My dockerfile looks like this

Thanks