examples: Add bootc UKI & BLS examples #1533
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examples/bootc-bls/Containerfile
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Would it be possible to start with a quay.io/fedora/fedora image? Or can we remove the ostree "bits" from the image within the Containerfile so we're certain it's not being relied on (e.g. /ostree)?
Or maybe longer term, there will be a separate Fedora image dedicated for bootc with cfs?
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Dropping /ostree is tracked at https://gitlab.com/fedora/bootc/base-images/-/issues/58
That said though note today the https://docs.fedoraproject.org/en-US/bootc/building-from-scratch/ already produces images without it, but that flow has the downside of producing a single large layer, which leads to coreos/rpm-ostree#5383
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Instead of two containerfiles, we can have a two stage build in a single Containerfile; similar to what the UKI build examples in |
examples/bootc-uki/build.final
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| mkdir -p tmp/efi | ||
| ./cfsctl --repo tmp/sysroot/composefs oci pull containers-storage:"${IMAGE_ID}" | ||
| ./cfsctl --repo tmp/sysroot/composefs oci compute-id --bootable "${IMAGE_ID}" | ||
| ./cfsctl --repo tmp/sysroot/composefs oci prepare-boot "${IMAGE_ID}" --bootdir tmp/efi |
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These use IMAGE_ID from above but (if I'm following correctly) we should re-compute IMAGE_ID based on tmp/iid2 above and use that instead?
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The verity for both iid1 and iid2 should be identical, as they both (essentially) have the same contents. The only difference is that in the second step, we build the UKI and put it inside /boot which is ignored by composefs-rs while creating the EROFS image.
Actually, building the UKI might introduce some artifacts which we do not want to take into account
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Signed-off-by: Timothée Ravier <[email protected]>
Signed-off-by: Timothée Ravier <[email protected]>
Signed-off-by: Timothée Ravier <[email protected]>
Update bootc examples to use the new unified bootc command interface: - Replace cfsctl binary with bootc and use 'bootc internals cfs' subcommands - Rename composefs-setup-root to bootc-initramfs-setup - Update dracut module from 37composefs to 37bootc - Remove sudo requirement from podman build commands - Update service and module configuration files accordingly 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
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both the bls and uki examples build successfully now, next item is to wire in tests to ensure these continue building properly in CI |
This is a 1-for-1 copy of https://github.com/containers/composefs-rs/pull/143/files, re: #1498 (comment) I'm posting this here as a draft so we have somewhere to add public comments so we can discuss where this needs to change.