Add support for SpawnerForm that lets you pick which Image to run

[yuvipanda]

For feature parity with https://github.com/sveesible/jupyterhub-kubernetes-spawner.

[elgalu]

@sveesible would you be willing to back port upstream your customizations to allow SINGLEUSER_IMAGE be chosen from a fixed list?

[elgalu]

Implementation wise, what I'm thinking now is: instead of having one single Start My Server is to iterate over a list and have one button for each image, e.g. Start my {image-name} notebook.

To achieve that I was thinking about adding a new singleuser_image_spec_list simil to singleuser_image_spec. It's an idea more aligned to c.DockerImageChooserSpawner.dockerimages

[keithcallenberg]

@elgalu I like the idea of singleuser_image_spec_list but could it default to displaying as a drop-down? I think many users have more than just a few images, which would make buttons impractical.

FWIW, I've been running something similar to @sveesible 's KubeOptionsSpawner in a team environment for a month now and it has been working great. Some documentation with examples of overloading KubeSpawner might reduce the need to bake these customizations in.

[elgalu]

I've been running something similar to @sveesible

Could you open source it?

[sveesible]

mine is using the jupyterhub interface pattern for making a select list to choose from also letting you customize the env variables before launch

…

On Wed, Oct 18, 2017 at 6:20 AM Leo Gallucci ***@***.***> wrote: I've been running something similar to @sveesible <https://github.com/sveesible> Could you open source it? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#14 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AEhcmOJrAzzGpp9wbnQg_w97qnWCglmeks5stezzgaJpZM4KyIsK> .

[jlewi]

This is what Kubeflow does.
https://github.com/kubeflow/kubeflow/blob/master/kubeflow/core/jupyterhub_spawner.py

I think we are doing the Jupyterhub interface pattern as @sveesible mentions above.

[yuvipanda]

Fixed in #137