batchspawner.SlurmSpawner + internal SSL

Hi all,
I am looking to add a jupyterhub frontend to our HPC cluster running slurm. I got a test hub setup and working fine. I would very much like to setup SSL for the connection between the jupyterhub proxy and the jupyter notebooks since the notebooks are running on multi-user compute nodes. Reading through the PRs it looks like running a self-signed CA using the internal SSL flag is not (yet?) supported by the SlurmSpawner. Is there a best practice document for using a jupyterhub frontend to a HPC cluster? Anything else that can be done to secure the connection between the hub and the notebooks?