8000 Multi-Arch - Patching Workflow Changes · Issue #991 · project-copacetic/copacetic · GitHub
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Multi-Arch - Patching Workflow Changes #991

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robert-cronin opened this issue Mar 27, 2025 · 0 comments
Open

Multi-Arch - Patching Workflow Changes #991

robert-cronin opened this issue Mar 27, 2025 · 0 comments
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enhancement New feature or request

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@robert-cronin
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Single-Arch Patching

  • After each sub-manifest’s UpdateManifest is obtained, call the existing single-arch patch routine (e.g. Path function found at https://github.com/project-copacetic/copacetic/blob/main/pkg/patch/patch.go#L45) for each sub-arch.
  • If we have to handle QEMU (for cross-arch on a single node), ensure that logic is triggered per sub-manifest within the patchWithContext function.
    • Add instructions for manual set up of QEMU
    • Add a check for emulation (possibly by checking if vmx or svm are present in /proc/cpuinfo, or by just trying a simple command with binfmt and seeing if it fails or not)
    • If emulation is not enabled, then we can fall back to just patching the host arch image.
  • Add a --push flag for defining whether copa will push the image(s) when done (this is something that can be added for single-arch too). Existing issue can be found here: feat: add push flag to support pushing to registry directly #294

Final Multi-Arch Manifest Assembly

  • Add code to create a new multi-arch manifest referencing each newly patched sub-image.
  • Possibly push them to a registry with the user’s --push or --tag-suffix arguments.
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