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Local package layering on bootc systems with DNF5

Talkat DevConf.CZ 2026 · on Friday, 2026-06-19· at 14:45· E112 (capacity 156)· [devops-and-delivery]
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Design for a DNF5 plugin called dnf rebuild that stores desired packages in packages.input.yaml, runs pre/post hook Containerfiles, builds a derived OCI image and runs bootc switch to apply it, and aims to be fast by caching RPM downloads, skipping pre-transaction scriptlets, and reflinking uncompressed payloads using RPM cow or composefs content addressing instead of copying many gigabytes. The implementation is a design sketch with libdnf5 integration planned to capture dnf install into the infile; not yet fully implemented or production-ready.

AI-written summary · about

  1. 0:00Local package layering on bootc
  2. 1:09Image-based vs traditional systems
  3. 3:56Package management on bootc
  4. 8:12Challenges with RPMOS and bootc
  5. 9:13DNF5 plugin design goals
  6. 12:06DNF rebuild plugin in practice
  7. 13:51DNF commands with rebuild workflows
  8. 15:58Performance optimization for builds
  9. 21:40Next steps and challenges
  10. 24:55Q&A
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