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Apptainer: Difference between revisions
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Should you need to port scripts | Should you need to port scripts to Apptainer, know Apptainer version 1 is backwards compatible with Singularity so switching to Apptainer can be done incrementally. | ||
==Other Linux container technologies== <!--T:9--> | ==Other Linux container technologies== <!--T:9--> | ||
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* Install Linux, Apptainer, and <code>sudo</code> in a virtual machine on a system you control so you will be able to have <code>sudo</code> access within such. Build your image(s) on that machine and upload them in order to use them on Alliance systems. | * Install Linux, Apptainer, and <code>sudo</code> in a virtual machine on a system you control so you will be able to have <code>sudo</code> access within such. Build your image(s) on that machine and upload them in order to use them on Alliance systems. | ||
* If appropriate, [[Technical Support|submit a ticket]] asking if Alliance staff would be able to help build the image(s) | * If appropriate, [[Technical Support|submit a ticket]] asking if Alliance staff would be able to help build the image(s) required needing <code>sudo</code>. 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 <code>--fakeroot</code> 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 <code>.def</code> definition files and building some images without needing to use <code>sudo</code>. That said, not all images will be able to be built without needing to use <code>sudo</code> or superuser/root. | * Apptainer version 1.1.x and newer has improved support for users using <code>--fakeroot</code> 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 <code>.def</code> definition files and building some images without needing to use <code>sudo</code>. That said, not all images will be able to be built without needing to use <code>sudo</code> or superuser/root. | ||
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=Building an Apptainer image= <!--T:89--> | =Building an Apptainer image= <!--T:89--> | ||
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