Explore Kubernetes Job and CronJob

[iameskild]

Instead of relying on Argo-Workflows as a backend, could we rely on the Kubernetes Job and CronJob objects instead? They perform very similar functions.

The reason why we didn't do this initially was because we are relying on the Nebari-Workflow-Controller to modify the Argo-Workflow (to mount the user's home directory, etc.). So in order to use the Kubernetes Jobs/CronJobs, we will need to generalize the NWC to allow it modify those additional resources.

[Adam-D-Lewis]

I'd like to look into this. Another advantage of using k8s Jobs/CronJob is we could split out Argo Workflows from Nebari and make it an extension.