Apptainer: Difference between revisions

<b>A sandbox directory</b> is a normal directory in the filesystem that starts out as empty. As Apptainer builds the image, it adds to it the files and directories needed in the image. The contents of a sandbox directory should only be accessed or updated through the use of Apptainer. One might need to use a sandbox directory in situations where one needs to have read-write access to the image itself in order to be able to update the container image. That said, if updates are infrequent, it is typically easier and better to use a <code>SIF</code> file and when updates need to be done, build a sandbox image from the <code>SIF</code> file, make the required changes, and then build a new <code>SIF</code> file, e.g.,