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Tm image build use aarch64 runners - #1
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* AlmaLinux 9: add 9.8 (fixed mirrors), keep 9.7 (vault) * AlmaLinux 10: add 10.2 (fixed mirrors), keep 10.1 (vault) * README: add openSUSE Tumbleweed, Debian, Ubuntu to built examples list * Rocky Linux 9.8/10.2 upgrade Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Signed-off-by: Timothy Middelkoop <tmiddelkoop@internet2.edu>
Replace QEMU-emulated multi-arch builds with native runners: linux/amd64 on ubuntu-latest, linux/arm64 on ubuntu-24.04-arm. Introduce images.json as the single source of truth for all image configurations. A new gen-matrix.py script generates both the build matrix (images x arches) and merge matrix (images only) at workflow runtime, so adding an image or arch requires editing only images.json. The build job pushes single-platform images by content-addressed digest. A separate merge job assembles the multi-arch manifest index with imagetools create, then signs it with cosign via GitHub OIDC. Also add oci-mediatypes=true to preserve index-level annotations on GHCR. Co-authored-by: Claude <noreply@anthropic.com> Signed-off-by: Timothy Middelkoop <tmiddelkoop@internet2.edu>
The images to build are once again defined in container-publish.yml (albeit with inline-style syntax for readability) but the build job is now responsible for constructing a manifest of digsts for the merge job to consume. Signed-off-by: Jonathon Anderson <janderson@ciq.com>
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test PR before updating warewulf#95