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<!-- The actual name of your proposed change page should look something like: Changes/Your_Change_Proposal_Name.  This keeps all change proposals in the same namespace -->
<!-- The actual name of your proposed change page should look something like: Changes/Your_Change_Proposal_Name.  This keeps all change proposals in the same namespace -->
= Deprecate YUM 3 =
= Retire YUM 3 =


== Summary ==
== Summary ==
Remove yum (v3) and all related packages from Fedora.
Remove the YUM (version 3) package manager stack from Fedora.


== Owner ==
== Owner ==
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This should link to your home wiki page so we know who you are.  
This should link to your home wiki page so we know who you are.  
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* Name: [[User:dmach|Daniel Mach]]
* Name: [[User:mdomonko|Michal Domonkos]]
* Email: dmach@redhat.com
* Email: mdomonko@redhat.com
* Release notes owner: <!--- To be assigned by docs team [[User:FASAccountName| Release notes owner name]] <email address> -->
* Release notes owner: <!--- To be assigned by docs team [[User:FASAccountName| Release notes owner name]] <email address> -->
<!--- UNCOMMENT only for Changes with assigned Shepherd (by FESCo)
<!--- UNCOMMENT only for Changes with assigned Shepherd (by FESCo)
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== Current status ==
== Current status ==
* Targeted release: [[Releases/29 | Fedora 29 ]]  
* Targeted release: [[Releases/31 | Fedora 31 ]]  
* Last updated: <!-- this is an automatic macro — you don't need to change this line -->  {{REVISIONYEAR}}-{{REVISIONMONTH}}-{{REVISIONDAY2}}  
* Last updated: <!-- this is an automatic macro — you don't need to change this line -->  {{REVISIONYEAR}}-{{REVISIONMONTH}}-{{REVISIONDAY2}}  
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CLOSED as NEXTRELEASE -> change is completed and verified and will be delivered in next release under development
CLOSED as NEXTRELEASE -> change is completed and verified and will be delivered in next release under development
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* Tracker bug: <will be assigned by the Wrangler>
* Tracker bug: [https://bugzilla.redhat.com/show_bug.cgi?id=1682910 #1682910]
* Release notes tracker: [https://pagure.io/fedora-docs/release-notes/issue/304 #304]


== Detailed Description ==
== Detailed Description ==
Remove the following packages from the distribution:
* createrepo
* yum
* yum-langpacks
* yum-utils
* yum-metadata-parser
* yum-updatesd
All these packages should no longer be used by the end-user, and all software using them should be migrated to DNF.
Note that we intentionally omit the `python2-urlgrabber` package from the list, although it is also part of the YUM stack. <strike>While it should eventually go away too (or be [https://github.com/rpm-software-management/urlgrabber/pull/8 ported to Python 3]), it is still heavily used by the Fedora infrastructure (such as by `sigul`, `imagefactory` or `koji-containerbuild`). We will propose its removal (if not ported in time) for Fedora 31 instead.</strike> It has been ported to Python 3 [https://github.com/rpm-software-management/urlgrabber/releases/tag/urlgrabber-4-0-0 in version 4.0.0].


<!-- Expand on the summary, if appropriate.  A couple sentences suffices to explain the goal, but the more details you can provide the better. -->
Compatibility:
* Important packages such as `yum`, `createrepo` or `yum-utils` will be provided/obsoleted by relevant packages from the DNF stack
* Important executables such `/usr/bin/yum`, `/usr/bin/repoquery` or `/usr/bin/createrepo` will be provided either as new executables or symlinks to the respective DNF-based counterparts


== Benefit to Fedora ==
== Benefit to Fedora ==
Drop an old package manager that has no active upstream development.
Drop an old package manager that has no active upstream community.
Move existing users to DNF which that has active development.
Move existing users to DNF that is under active development.
Secondary benefit is reducing number of packages in Fedora that still depend on Python 2.
Secondary benefit is reducing the number of packages in Fedora that still depend on Python 2.


== Scope ==
== Scope ==
* Proposal owners: Remove packages from the distribution: createrepo, yum, yum-langpacks, yum-utils, yum-metadata-parser, python-urlgrabber
* Proposal owners: Remove the packages listed in the [https://fedoraproject.org/wiki/Changes/Retire_YUM_3#Detailed_Description Detailed Description] section from the distribution
* Other developers: Either remove packages from the distribution or switch them to DNF
* Other developers: Either remove the depending packages from the distribution or port them to the DNF stack
* Release engineering: [https://pagure.io/releng/issues #Releng issue number] (a check of an impact with Release Engineering is needed) <!-- REQUIRED FOR SYSTEM WIDE AS WELL AS FOR SELF CONTAINED CHANGES -->
* Release engineering: [https://pagure.io/releng/issue/7588 #7588]
<!-- Does this feature require coordination with release engineering (e.g. changes to installer image generation or update package delivery)?  Is a mass rebuild required?  include a link to the releng issue.  
<!-- Does this feature require coordination with release engineering (e.g. changes to installer image generation or update package delivery)?  Is a mass rebuild required?  include a link to the releng issue.  
The issue is required to be filed prior to feature submission, to ensure that someone is on board to do any process development work and testing, and that all changes make it into the pipeline; a bullet point in a change is not sufficient communication -->
The issue is required to be filed prior to feature submission, to ensure that someone is on board to do any process development work and testing, and that all changes make it into the pipeline; a bullet point in a change is not sufficient communication -->
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== Upgrade/compatibility impact ==
== Upgrade/compatibility impact ==
Any tool based on YUM 3 Python API will stop working. This applies on any 3rd party software which won't be changed in Fedora as part of this change.
Any tool based on the YUM 3 Python API will stop working. This applies on any 3rd party software which won't be changed in Fedora as part of this change.
CLI compatibility will be provided by DNF.
CLI compatibility will be provided by DNF.


== How To Test ==
== How To Test ==
Repoclosure passes after dropping the packages.
`repoclosure` passes after dropping the packages.


== User Experience ==
== User Experience ==
There shouldn't be any impact on YUM users because the functionality is provided by DNF already.
There shouldn't be any impact on the YUM users because the package management functionality is provided by DNF already.
Users of tools listed in the Dependencies section shouldn't see any difference if the migration to DNF is done properly.
Users of tools listed in the [https://fedoraproject.org/wiki/Changes/Retire_YUM_3#Dependencies Dependencies] section shouldn't see any difference if the migration to DNF is done properly.


== Dependencies ==
== Dependencies ==
The list of source packages (SRPMs) that still depend on (some parts of) the YUM stack:
* cobbler
* cobbler
** tracker: https://bugzilla.redhat.com/show_bug.cgi?id=1156552
** requires: createrepo
** rpms: cobbler
* ddiskit
* ddiskit
** tracker: N/A
** requires: createrepo
** rpms: ddiskit
* diskimage-builder
* diskimage-builder
** tracker: N/A
** requires: yum-utils
** rpms: diskimage-builder
* dlrn
* dlrn
** tracker: N/A
** requires: createrepo
** rpms: python3-dlrn
* fusioninventory-agent
* fusioninventory-agent
** tracker: N/A
** requires: yum
** rpms: fusioninventory-agent-yum-plugin
* grinder
* grinder
* imgbased
** tracker: N/A
** requires: createrepo
** rpms: grinder
* kiwi
* kiwi
** tracker: N/A
** requires: yum
** rpms: kiwi-systemdeps
* koji
* koji
* libtaskotron
** tracker: https://pagure.io/koji/issue/971
* lpf
** requires: createrepo
** rpms: koji-builder
* mach
* mach
** tracker: https://bugzilla.redhat.com/show_bug.cgi?id=1156528
** requires: createrepo, yum
** rpms: mach
* mash
* mash
* mirrormanager
** tracker: https://bugzilla.redhat.com/show_bug.cgi?id=1156546
** requires: createrepo, yum
** rpms: mash
* nagios-plugins-check-updates
* nagios-plugins-check-updates
** tracker: N/A
** requires: yum
** rpms: nagios-plugins-check-updates
* perl-Fedora-Rebuild
* perl-Fedora-Rebuild
** tracker: N/A
** requires: createrepo
** rpms: perl-Fedora-Rebuild
* plague
* plague
* pulp-rpm
** tracker: N/A
** requires: createrepo
** rpms: plague
* pungi
** tracker: N/A
** requires: createrepo, yum, yum-utils
** rpms: pungi-legacy
* repo_manager
* repo_manager
** tracker: N/A
** requires: createrepo
** rpms: repo_manager
* repoview
* repoview
* retrace-server
** tracker: https://bugzilla.redhat.com/show_bug.cgi?id=1156505
** requires: yum
** rpms: repoview
* snake
* snake
** tracker: https://bugzilla.redhat.com/show_bug.cgi?id=1156539
** requires: yum
** rpms: snake
* system-config-kickstart
* system-config-kickstart
** tracker: N/A
** requires: yum
** rpms: system-config-kickstart
* yum-axelget
* yum-axelget
** tracker: https://bugzilla.redhat.com/show_bug.cgi?id=1341140
** requires: yum, yum-plugin-fastestmirror
** rpms: yum-axelget
* yum-rhn-plugin
* yum-rhn-plugin
* yum-updatesd
** tracker: N/A (package was recently retired but no compose happened since)
** requires: yum
** rpms: yum-rhn-plugin
 
Updated: 2019-02-02


Generated with:
https://gist.github.com/dmnks/787b121503ba1e9d1565d58b4a4e3a62
<pre>$ python3 deps.py createrepo yum yum-langpacks yum-utils yum-metadata-parser yum-updatesd</pre>


== Contingency Plan ==
== Contingency Plan ==
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== Release Notes ==
== Release Notes ==
Inform end-users about removing the YUM 3 stack and definitive migration to DNF.
Inform end-users about removing the YUM 3 stack and the definitive migration to DNF.


[[Category:ChangePageIncomplete]]
[[Category:ChangeAcceptedF31]]
<!-- When your change proposal page is completed and ready for review and announcement -->
<!-- When your change proposal page is completed and ready for review and announcement -->
<!-- remove Category:ChangePageIncomplete and change it to Category:ChangeReadyForWrangler -->
<!-- remove Category:ChangePageIncomplete and change it to Category:ChangeReadyForWrangler -->

Latest revision as of 10:14, 26 February 2019


Retire YUM 3

Summary

Remove the YUM (version 3) package manager stack from Fedora.

Owner

Current status

Detailed Description

Remove the following packages from the distribution:

  • createrepo
  • yum
  • yum-langpacks
  • yum-utils
  • yum-metadata-parser
  • yum-updatesd

All these packages should no longer be used by the end-user, and all software using them should be migrated to DNF.

Note that we intentionally omit the python2-urlgrabber package from the list, although it is also part of the YUM stack. While it should eventually go away too (or be ported to Python 3), it is still heavily used by the Fedora infrastructure (such as by sigul, imagefactory or koji-containerbuild). We will propose its removal (if not ported in time) for Fedora 31 instead. It has been ported to Python 3 in version 4.0.0.

Compatibility:

  • Important packages such as yum, createrepo or yum-utils will be provided/obsoleted by relevant packages from the DNF stack
  • Important executables such /usr/bin/yum, /usr/bin/repoquery or /usr/bin/createrepo will be provided either as new executables or symlinks to the respective DNF-based counterparts

Benefit to Fedora

Drop an old package manager that has no active upstream community. Move existing users to DNF that is under active development. Secondary benefit is reducing the number of packages in Fedora that still depend on Python 2.

Scope

  • Proposal owners: Remove the packages listed in the Detailed Description section from the distribution
  • Other developers: Either remove the depending packages from the distribution or port them to the DNF stack
  • Release engineering: #7588
  • Policies and guidelines: N/A
  • Trademark approval: N/A (not needed for this Change)

Upgrade/compatibility impact

Any tool based on the YUM 3 Python API will stop working. This applies on any 3rd party software which won't be changed in Fedora as part of this change. CLI compatibility will be provided by DNF.

How To Test

repoclosure passes after dropping the packages.

User Experience

There shouldn't be any impact on the YUM users because the package management functionality is provided by DNF already. Users of tools listed in the Dependencies section shouldn't see any difference if the migration to DNF is done properly.

Dependencies

The list of source packages (SRPMs) that still depend on (some parts of) the YUM stack:

Updated: 2019-02-02

Generated with: https://gist.github.com/dmnks/787b121503ba1e9d1565d58b4a4e3a62 

$ python3 deps.py createrepo yum yum-langpacks yum-utils yum-metadata-parser yum-updatesd

Contingency Plan

  • Contingency mechanism: Do not remove the packages in the current release.
  • Contingency deadline: Beta Freeze
  • Blocks release? No
  • Blocks product? No

Documentation

N/A

Release Notes

Inform end-users about removing the YUM 3 stack and the definitive migration to DNF.

Retrieved from "https://fedoraproject.org/w/index.php?title=Changes/Retire_YUM_3&oldid=535201"