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 that directory the files, etc. needed in the image. The contents of a sandbox directory should only be accessed, updated, etc. 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 an <code>SIF</code> 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.,