[P&S Initiative] VEDA Objective JH-3: Deploy per-group shared directories

[jnywong]

Description

We contributed the required features for per-group shared directories upstream, but have not deployed it yet. In addition, because we are switching to per-user user home directory limits, additional work may be needed for per-group shared directories.

Acceptance Criteria

• Per group shared directories are deployed on the VEDA hub
• Integration work with per-user home directory limits is performed, if necessary

Personnel

• @sunu
• 2i2c Product & Services Team

[batpad]

It seems like all the upstream releases we were waiting on to finish this work are done, and we should be able to proceed with making the configuration changes in the infrastructure repository to actually enable this for users.

My understanding of what this would look like, roughly:

• Create a test "team" in Github to test this feature with.
• Verify that the team is being mapped to "groups" in JupyterHub - this should work correctly.
• Convert all volumeMounts across the infrastructure repository to be dicts instead of lists, following up on earlier work by @sunu to allow for this, eg: https://github.com/2i2c-org/infrastructure/blob/main/config/clusters/nasa-veda/common.values.yaml#L105
• Specify group_overrides to add volumeMounts like _shared-group/{group-name} or so for groups that need group-shared directories, see https://jupyterhub.readthedocs.io/en/stable/reference/api/spawner.html#jupyterhub.spawner.Spawner.group_overrides
• Test that this works and that the group-shared folders are only visible to members of the group.

@sunu does this make sense and is this something you'd be able to get started on?

@yuvipanda can you confirm that we'd need to change volumeMounts to dicts for all volumeMounts for all clusters in the infrastructure repository?

[yuvipanda]

@yuvipanda can you confirm that we'd need to change volumeMounts to dicts for all volumeMounts for all clusters in the infrastructure repository?

yes

[sunu]

@batpad sounds good! I'll get to this after finishing #5414.