could/should I propose (separate PR on top?) in this section and/or https://github.com/nipreps/nipreps.github.io/blob/HEAD/docs/apps/singularity.md file to mention our https://github.com/ReproNim/containers which contains (automatically updates) pre-created singularity images for all bids-apps (thus including fmriprep, mriqc), and providing some helpers to streamline their use and more guaranteed reproducibility (isolated environment execution etc).

Note that wrapper also tries to support non-Linux systems (OSX) where we could run singularity under docker. Or could also be used on Linux if there is no singularity installation.

https://github.com/ReproNim/containers?tab=readme-ov-file#runnable-script provides a "typical" use example based on mriqc.

https://github.com/OpenNeuroDerivatives/ by @jbwexler (and @effigies ?) use that ReproNim/containers as a subdatset archive of the images with reproman run for execution.

also that should include YODA aspects whenever talking about containers... with them it becomes possible to encapsulate all digital objects nicely and reproducibly (there is no guarantee that docker:// would later give you the images used etc)

Yes! Mentioning ReproNim on a separate PR would be fantastic.

Yes! Mentioning ReproNim on a separate PR would be fantastic.

another shameless plug which might be of interest/help.

Inspired by our reproman, and BrainLife's helper to monitor execution of compute, we created a simple helper https://github.com/con/duct which could be of help to monitor/identify memory and cpu requirements for e.g. future informed specification for job parameters or plotting resource consumption during compute. It also takes care about storing stdout/stderr outputs produced, thus making it possible (if used along with datalad *run) to capture those for possible future troubleshooting etc.

If you finally send an additional PR, I'm happy to see this documented there :)

btw -- isn't there freesurfer license needed to be passed somehow?

Further up, on line 18, it says that all examples will refer to MRIQC (which doesn't require freesurfer license).
nvm, didn't realize this was the docker.md file, not the datalad.md file.

Yes, I had the freesurfer license issue in mind. At the moment it's defined in fMRIPrep's documentation but we probably want to bubble it up here.

Unless the actual docker there is podman which by default would run rootless ;)

ha@hopa:~$ rm -f 123; docker run -it -v $PWD:$PWD -w $PWD --entrypoint bash nipreps/fmriprep:latest -c 'echo `whoami` am in; id; pwd; touch 123; ls -l 123' ; echo "`whoami` is out"; ls -ld 123
Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg.
root am in
uid=0(root) gid=0(root) groups=0(root)
/home/ha
-rw-r--r-- 1 root root 0 Jan  7 14:19 123
ha is out
-rw-r--r-- 1 ha ha 0 Jan  7 09:19 123

I am yet to try podman on hpc/for hpc, using primarily for services, but googled into https://github.com/NERSC/podman-hpc ... worth researching and at least pointing users that there is another OCI solution podman which might give them easier means to run compute on their infrastructure.