Add Shifter support?

[marcodelapierre]

Shifter by NERSC, https://docs.nersc.gov/development/shifter/ is another robust container runtime for HPC

[marcodelapierre]

Just starting to document some functionalities in Shifter, taking from the materials I had developed for SC/ISC tutorials with Shane Canon:

• pull: shifterimg pull <repo>:<tag> (never tried digests)
• execute/shell: shifter --image=<repo>:<tag> <cmd>
• execute default command: N/A (entrypoints not supported I think)
• add variables in container: --env VAR=value
• default work directory: should match host
• host directory mounts: typically set up by sys admins
• GPU apps: work out of the box if Shifter is configured for that

[vsoch]

I started on this one too but never could get shifter installed.

[marcodelapierre]

I would like to seek collab with Shane to progress it myself (he might give access to a machine with Shifter)
I will se if I can do it before SC21 happens (so we can showcase at the container workshop there!) ... right now I am a bit overwhelmed with other projects :)

[vsoch]

Ah, here is why I stopped! NERSC/shifter#299

[marcodelapierre]

ah, there you go! :)
I will ping Shane on that issue