Yuvi

Yeah, I think adding .dockerignore support would be a good addition to repo2docker functionality. I'll retitle the issue.

Had a very helpful conversation with @consideRatio about this! Since it might add additional complexity here, I think it'd be useful to start this off outside this repo, as a...

@nreith I actually ended up building a separate spawner for this, and it works fairly well - https://github.com/yuvipanda/jupyterhub-multicluster-kubespawner.

@nreith that would be super awesome!

I just rebased this. We hard code a bunch of packages - particularly in the R ecosystem - to bionic. I think making the base image configurable would mean we'll...

@manics unfortunately we can't, as we'll then stop being able to install binary packages from packagemanager.rstudio.com

Although, perhaps we can get it from https://docs.rstudio.com/resources/install-r/

I'm trying out getting R from RStudio tho (https://github.com/jupyterhub/repo2docker/pull/1161) maybe that'll help remove anything distro specific

Now based on #1161, and I'll try make the base image configurable as well once tests pass.

tests pass, yay!