JupyterHub with DockerSpawner (Jupyter kernels)

[Michal Cokina]

Hi,

I am using a DockerSpawner for JupyterHub. I have a several users whoes are capable to authenticate by custom Authentication class. If user is first time logged, new docker container (jupyterhub/singleuser) is spawned in standard way, host folder for this user is created and mounted on container. Everything is working fine. Now, I would like to python virtualenv created in host. Is it possible to use such environment as kernel in container after login? Further, is it possible to create kernel in docker container and use it for logged user and where are kernels for jupyterhub users stored? I cannot figure it out.

Thanks

[MinRK]

On Wed, Aug 2, 2017 at 5:05 PM, Michal Cokina <mikec...@gmail.com> wrote:

Hi,

I am using a DockerSpawner for JupyterHub. I have a several users whoes are capable to authenticate by custom Authentication class. If user is first time logged, new docker container (jupyterhub/singleuser) is spawned in standard way, host folder for this user is created and mounted on container. Everything is working fine. Now, I would like to python virtualenv created in host. Is it possible to use such environment as kernel in container after login? Further, is it possible to create kernel in docker container and use it for logged user and where are kernels for jupyterhub users stored? I cannot figure it out.

If you are using DockerSpawner, then kernels are inside the docker images/containers your users are using.

You can create virtualenvs in there, and the most logical way to do that is by creating the virtualenv in your Dockerfile.

Once you have a virtualenv, you can make it available as a kernelspec to other envs by running in the env:

source env/bin/activate
ipython kernel install --name my-env-name

Then a kernel for that env will be available to notebooks running in any env.

-Min

Thanks

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