Translations:Apptainer/13/en

• Install Linux, Apptainer, and sudo in a virtual machine on a system you control so you will be able to have sudo access within such. Build your image(s) on that machine and upload them in order to use them on Alliance systems.
• If appropriate, submit a ticket asking if Alliance staff would be able to help build the image(s) required needing sudo. This may or may not be possible, but feel free to ask in a ticket if what you wish to achieve is beyond your means. Additionally, we may respond with other ways to achieve such which may or may not involve Apptainer.
• Apptainer version 1.1.x and newer has improved support for users using --fakeroot implicitly and explicitly so some things may be possible that were not with Apptainer version 1.0 and Singularity. This includes being able to build some images from .def definition files and building some images without needing to use sudo. That said, not all images will be able to be built without needing to use sudo or superuser/root.