adding file during the osbuild phase

[lucamaf]

Not sure if this is the correct place but I'm wondering how to add a big file (imagine a DB backup or VM image) in the ostree filesystem at build time.
Reason behind this is imagine having a partially disconnected Edge Device which requires these type of artifacts to boot and there is no easy way to transfer them after installation time.
I tried already in some way manipulating kickstart or creating custom rpm to include those files but none of them worked.
I would ask this as an enhancement, unless there is an easier way to do that with ostree.

[ericcurtin]

Highly recommend creating an RPM and setting up an RPM repo to pull from as you suggested that you tried and failed.

There are other ways, but it's probably the easiest for you.

[ericcurtin]

I'd point you at our Automotive tools, but they are bespoke right now to Automotive.

Long term this is just a Containerfile/Dockerfile btw with bootc, so you can do whatever in a RUN command.

[ericcurtin]

You can try this if you want it's new:

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/using_image_mode_for_rhel_to_build_deploy_and_manage_operating_systems/introducing-image-mode-for-rhel_using-image-mode-for-rhel-to-build-deploy-and-manage-operating-systems

can also be based on Fedora bootc if something recent is needed