Build and run were tested with Apptainer 1.3.4. But as we do not use any fancy features, I expect wide compatibility with Apptainer releases.

build

Image takes the baseimage from Docker, so no sudo is needed.

apptainer build image.sif ./visit.def

run

Using apptainer exec:

apptainer exec image.sif visit

or directly just by running image, as %runscript is defined:

./image.sif