Changing runtime parameters for the single user image

JupyterHub
1

Hello,

I am running a single-user image that runs rstudio. We have had issues in the past where students crash the container causing a core dump. I know we eventually have to troubleshoot why rstudio is crashing but I was hoping for a quick band-aid. I ran the image locally on my desktop with the following parameters. This does indeed set the core file size.
docker run --ulimit core=0 -p 8889:8888 ucsb/pstat-131:latest

Is there a way to add these parameters to the config.yaml file in order to update the jupyterhub?

2

Are you using Dockerspawner? It has some parameters for passing arbitrary options: https://github.com/jupyterhub/dockerspawner/blob/9d4a35995d2c2dd992e070cc7ad260123308b606/dockerspawner/dockerspawner.py#L517-L522
Try adding your ulimit config to extra_host_config: https://docker-py.readthedocs.io/en/1.2.0/hostconfig/

3

I’m using whatever the default spawner is for the zero to jupyterhub on kubernetes.

4

That’ll be kubespawner. I don’t know if you can easily set ulimits on kubernetes.