Feature Request: Support for JupyterLab

[DJuboor]

No description provided.

[alexraju91]

Just found out how to do this.
Add the following lines to the make_worker_ami method in launch.py script.

sudo("pip3 --quiet install ipython jupyter jupyterlab ipykernel nbgrader")
sudo("jupyter serverextension enable --py jupyterlab --sys-prefix")

jupyterhub_config.py

c.Spawner.default_url = '/lab'
c.Spawner.cmd = ['jupyterhub-singleuser']

[farassadek]

Thank you Alex , this should make it work.
If you faced any issue please let me know

[h4gen]

Indeed the solution proposed by @alexforever86 provides a jupyterlab instance, but in my case the hub bar is vanished. Do you also encounter this problem?

[farassadek]

Hi
I used the lab with the older version of Jupyterhub and was working , It might be the new version ? I did not test it currently.
@alexforever86 did you test your solution with the current version of Jupyterhub ?

[h4gen]

I also tried this https://github.com/jupyterhub/jupyterlab-hub extension but it did not really get me further :/ In fact I got an 403 error when entering the lab. Maybe it has something todo with the page_config.json part. I have to admit I do not really understand what it is about or if this condition is fulfilled in your setup.

[farassadek]

Did you install jupyterlab-hub on the AMI that used to create the user instances ?

[h4gen]

Yes, exactly! I added these lines and the installation works without problems on the AMI:
sudo("pip3 --quiet install ipython jupyter jupyterlab ipykernel nbgrader")
sudo("curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -")
sudo("apt-get install -qq -y nodejs")
sudo("jupyter labextension install @jupyterlab/hub-extension")

[farassadek]

I cannot tell for definite what is going wrong since there are many parts need to come together. Therefore I will create a cluster myself and check jupyterlab with the latest version of jupyterhub.
Is this urgent or it can wait (I am a bit busy those days preparing the lectures for my devops class that starts in 10 days)? If it is urgent , can I have access to your cluster to check what is going on ?

[h4gen]

No its really not that urgent! I will try a bit more and also focus on some other problems in the meantime. Thank you a lot!

[farassadek]

I will leave this issue open until we find a resolution. If you are able to make the lab works please share it so I can added to the documentation.
Thanks and sorry if I was not of a help here

[alexraju91]

@h4gen I tried this with old version. Which cmd parameter did you use with this?

c.Spawner.cmd = ['jupyter-labhub']

or

c.Spawner.cmd = ['jupyterhub-singleuser']

[h4gen]

I tried both!
Your version leads to normal behaviour but also without the hub bar.
The
c.Spawner.cmd = ['jupyter-labhub']
configuration leads to no hub bar and no usability as a few dialugue windows appear:

Trying to start notebook:

Open a file from the file menue:

I guess it has to do with the page_config.json mentioned on the labhub page. I tried to inject

{ "hub_prefix": "/jupyter" }

but I think this is the wrong path and I don't really understand what would be correct in our case.