Add zipping packages to a default TLJH

[choldgraf]

It seems like it may be common for people to want to download zipped and/or compressed files on a JupyterHub. Perhaps we should add packages like unzip by default? What do folks think?

(I know tar is already installed, but lots of datasets are stored as .zip out there)

[yuvipanda]

This is the general question of 'what additional apt 'utilities' do we add to TLJH'. For right now, my preference is 'none', at least until we have a policy on what gets added and what does not. Primarily I'm concerned about install time, and also around bloat if we don't have a clear policy for what things we 'automatically' install.

In the meantime, maybe make our howto on using apt more prominent?

[choldgraf]

Fine w/ me - I added an example that included installing unzip to download a data file in the latest PR, so I think we can probably doc-around this problem :-)

[yuvipanda]

@choldgraf The way to do this is to allow people to make 'spins' or 'variants' of TLJH with plugins, in an easy way that puts very little burden on both the people making the spins/variants and the users. The plugin approach in #127 should help with this! We can then have a webpage that constructs an install command based on the plugins they want.

[choldgraf]

that's a cool idea - I like it! I suppose is people start doing this, we can occasionally see whether there is a particular package / pattern that everybody uses in their package and then decide if it makes sense to bake that in to TLJH in subsequent versions.

I'm gonna close this because I think it's too specific to be actionable, but re-open if you disagree!