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Develop and Maintain a Distro with Open Build Service
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Develop and Maintain a Distro with Open Build Service

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  • 1. Develop and Maintain a Distro with Open Build Service Gary Lin Software Engineer, SUSE Labs glin@suse.com
  • 2. Open Build Service?Open Build Service (OBS) is an open sourceproject initiated by SUSE to create a genericbuild system to build and distribute packagesfrom sources in an automatic, consistent andreproducible way.
  • 3. Basic IdeaSource codePatches Package OBS (RPM, DEB, ...)Changelog Whatever
  • 4. Supported Distributions
  • 5. Supported Architectures● i586● x86-64● PowerPC 32● PowerPC 64● IA64● ARMv7● ARMv5
  • 6. How OBS works
  • 7. Project and Package● Project – Each project contains the resources needed to build one or more packages. – These resources include source archives, patch files, spec files, etc. – The project defines the build architectures and the general settings.● Package – The packages are the build targets of the project. – The package format could be any supported output format, e.g. RPM or DEB.
  • 8. Frontend – Web UI
  • 9. Frontend - Commandline
  • 10. Frontend to BackendFrontend Requests Create a package/project Query packages/projects Check in/modify sources Backend Servers Delete a package ... Submit changes
  • 11. Backend Components scheduler scheduler publish i586 x86_64 s job descriptions nteve dispatcher srcserver publisher s rce s ck age jobs sou pa download worker rep server server warden dep packages signer ... ... ... build results download worker rep server server
  • 12. Collaboration
  • 13. branch Project A home:userA:branches:ProjectA Project Settings Project Settings Project Settings Project SettingsBuild ArchitecturesBuild Architectures Build Architectures Build Architectures Package Package (Package) Diff Diff
  • 14. submitrequestProject A home:userA:branches:ProjectA Package Package Package Diff Diff Diff Diff
  • 15. Real-life case: openSUSE
  • 16. Current Release● All packages are in the release project and the update project, e.g. openSUSE:12.1 and openSUSE:12.1:Update.● Each package update must be reviewed by the maintenance team and then be submitted to the update project.● In general, every update has to be tracked by a bugzilla entry.
  • 17. Maintenance ProcessopenSUSE 12.1:Update openSUSE 12.1:Update openSUSE:Maintenance:IDXXX openSUSE:Maintenance:IDXXX packageA patchInfo packageA m br mr an ch home:userA:branches: home:userA:branches: openSUSE 12.1 openSUSE 12.1 openSUSE:12.1:Update openSUSE:12.1:Update packageA patchInfo packageA
  • 18. Next Release● The packages for the next release are in the “factory” project, e.g. openSUSE:Factory.● All developments are happened in the “devel” projects.● The package updates are reviewed by the devel project maintainers.● Any modification is allowed as long as the maintainer agrees.
  • 19. openSUSE FactoryNext Release openSUSE:Factory openSUSE:FactoryDevel Projects Base:System Base:System Gnome:Factory Gnome:Factory Gnome:Apps Gnome:Apps X11:XOrg X11:XOrg ...User Branches sr branch home:userA:branches: home:userA:branches: Gnome:Factory Gnome:Factory
  • 20. Try it!openSUSE Build Servicehttp://build.opensuse.org
  • 21. Questions?
  • 22. Thank You!
  • 23. ReferencesOpen Build Systemhttp://www.open-build-service.org/Build system comparisonhttp://en.opensuse.org/openSUSE:Build_Service_comparisonBuild Service Backend Key Componentshttp://en.opensuse.org/openSUSE:Build_Service_Backend_Key_ComponentsopenSUSE Build Systemhttps://build.opensuse.org/openSUSE Maintenance Setuphttp://doc.opensuse.org/products/draft/OBS/obs-reference-guide_draft/cha.obs.maintenance_setup.html
  • 24. Backup Slides
  • 25. Other Build Systems● Fedora “Koji”● Ubuntu “Launchpad”● Mandriva Build System● Project Build● Build Bot● Poky
  • 26. Comparison Name Multi- Build for other Package formats Create Images Architecture distributionsFedora Koji N N rpm YUbuntu Y N deb NLaunchpadMandriva Build Y N rpm TODOSystem deb, rpm, ebuild,Project Build Y Y N pkgBuild Bot Y N N/A NPoky Y N rpm, deb, ipg, tgz YOpen Build rpm, deb, tgz, Y Y YService exe[*]* experimental
  • 27. Package Build Build Server Local Build Sources Sources Sources SourcesDependenciesDependencies Dependencies DependenciesBase PackagesBase Packages Base Packages Base PackagesBase SystemBase System chroot chroot qemu qemu
  • 28. copypacProject A Project B Package Package Package Package Change
  • 29. linkpacProject A Project B Package Package (Package) Diff Diff
  • 30. Tumbleweed● Tumbleweed is a project based on the current release and the “stable” projects.● Tumbleweed is initiated and maintained by Greg KH.
  • 31. TumbleweedTumbleweed openSUSE:Tumbleweed openSUSE:TumbleweedStable Projects Current ReleaseGnome:Stable:3.2 KDE:Release:48 ...Gnome:Stable:3.2 KDE:Release:48 Virtualization Virtualization openSUSE:12.1 openSUSE:12.1