feat: rechunk with rpm-ostree #1476
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We have to use homebrew podman to workaround issues in older ubuntu 24.04 for the rpm-ostree rechunker anyway in the future. I think this is the most sensible way to add only a single binary to the $PATH and not all of them. So we are being very deliberate about programs we get from homebrew instead. See: ublue-os#1476
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if we merge this then we should do this after the weeklies published so we get testing from our most technical users + we should make a blog post about this change only, no other topics, if something blows up we have a central place to do damage control of it, if it ever comes to that. |
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Noted. Also tested switching to image with this and nothing blew up. Also rollback was succesfull |
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Rebased 2 laptops of mine, no issues as far as I can tell |
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The legacy rechunker is basically unmaintained, this is a much safer option to reduce our (delta) image size. https://coreos.github.io/rpm-ostree/build-chunked-oci/ https://gitlab.com/fedora/bootc/base-images/-/blob/main/bootc-base-imagectl The metadata from a prior built image is used to construct the new one so that the difference between them is minimized if possible.
enable when coreos/rpm-ostree#5545 fixed
We need a newer podman version than ubuntu 24.04 provides, homebrew is the most elegant solution. We need the layer annotations for the rpm-ostree rechunker so that updates are more efficient. workaround for: containers/podman#27796
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#1470
https://coreos.github.io/rpm-ostree/build-chunked-oci/
https://gitlab.com/fedora/bootc/base-images/-/blob/main/bootc-base-imagectl
we need the hacky sysusers workaround to get off of the hhd/rechunker
If we don't do this we may get users with blackscreens -> no sddm group/user -> no SDDM
filter non-rpm content (mostly our stuff anyway) put it in it's own layerDon't bother for now, reasons listed here: stop rechunking with hhd/legacy-rechunker and use rpm-ostree rechunker #1470