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{{admon/important | Comments and Explanations | The page source contains comments providing guidance to fill out each section. They are invisible when viewing this page. To read it, choose the "view source" link.<br/> '''Copy the source to a ''new page'' before making changes!  DO NOT EDIT THIS TEMPLATE FOR YOUR CHANGE PROPOSAL.'''}}
= Set skip_if_unavailable default to false =


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Dnf team wants to change a default setting for the repo option `skip_if_unavailable` to `FALSE`.
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== Current status ==
== Current status ==
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* Tracker bug: <will be assigned by the Wrangler>
* Tracker bug: [https://bugzilla.redhat.com/show_bug.cgi?id=1706160 #1706160]
* Release notes tracker: [https://pagure.io/fedora-docs/release-notes/issue/336 #336]


== Detailed Description ==
== Detailed Description ==


<!-- Expand on the summary, if appropriate. A couple sentences suffices to explain the goal, but the more details you can provide the better. -->
Dnf team wants to change a default setting for the repo option `skip_if_unavailable` to `FALSE`. The option is responsible for behavior when metadata of a repository is unavailable. When it is set to false, it will stop on the first unavailable repository with raising an error. The default behavior could be overwritten by a configuration of each repository or in dnf by configuration in /etc/dnf/dnf.conf.


== Benefit to Fedora ==
The behavior is not new, because it was used already by YUM, and the behavior is really essential because all Fedora ropos are already shipped with `skip_if_unavailable=FALSE`.


<!-- What is the benefit to the distribution?  Will the software we generate be improved? How will the process of creating Fedora releases be improved?
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== Benefit to Fedora ==


    Consider these Change pages from previous editions as inspiration:
It should provide a better security because some Important updates from third-party repositories could be present in temporary unavailable repository, but user can easily overlook it during `dnf update` because the issue is reported as a warning.
    https://fedoraproject.org/wiki/Changes/Annobin (low-level and technical, invisible to users)
    https://fedoraproject.org/wiki/Changes/ParallelInstallableDebuginfo (low-level, but visible to advanced users)
    https://fedoraproject.org/wiki/Changes/VirtualBox_Guest_Integration (primarily a UX change)
    https://fedoraproject.org/wiki/Changes/NoMoreAlpha (an improvement to distro processes)
    https://fedoraproject.org/wiki/Changes/perl5.26 (major upgrade to a popular software stack, visible to users of that stack)
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== Scope ==
== Scope ==
* Proposal owners:
* Proposal owners:
<!-- What work do the feature owners have to accomplish to complete the feature in time for release?  Is it a large change affecting many parts of the distribution or is it a very isolated change? What are those changes?-->
** Backport the following upstream pull requests into the DNF stack on Fedora: https://github.com/rpm-software-management/libdnf/pull/701


* Other developers: N/A (not a System Wide Change) <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
* Other developers: N/A (not a System Wide Change) <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
<!-- What work do other developers have to accomplish to complete the feature in time for release?  Is it a large change affecting many parts of the distribution or is it a very isolated change? What are those changes?-->
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* Release engineering: [https://pagure.io/releng/issue/8307 #8307] (a check of an impact with Release Engineering is needed)  
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** [[Fedora_Program_Management/ReleaseBlocking/Fedora{{FedoraVersionNumber|next}}|List of deliverables]]: N/A (not a System Wide Change) <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
** [[Fedora_Program_Management/ReleaseBlocking/Fedora{{FedoraVersionNumber|next}}|List of deliverables]]: N/A (not a System Wide Change) <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
<!-- Please check the list of Fedora release deliverables and list all the differences the feature brings -->
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== Upgrade/compatibility impact ==
== Upgrade/compatibility impact ==
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<!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
<!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
N/A (not a System Wide Change)
Edit .repo file in /etc/yum.repos.d/* and set an url that is not accessible.
 
Case 1:
No skip_if_unavailable in the repo file, in /etc/dnf/dnf.conf or overwritten from commandline using `--setopt`.
Any command that requires available repositories like `dnf repoquery` will fail due to an error `Error: Failed to synchronize cache for repo '<repo_ID>'`
 
Case 2:
Set skip_if_unavailable=true in the repo file.
Any command that requires available repositories like `dnf repoquery` will not fail due to missing metadata of the `<repo_id>`


== User Experience ==
== User Experience ==
Broken repositories are recognized early, enabling the users to act upon them by double-checking their repository configuration or filing bugs, instead of assuming no upgrades are available.
<!-- If this change proposal is noticeable by users, how will their experiences change as a result?
<!-- If this change proposal is noticeable by users, how will their experiences change as a result?


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<!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
<!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
N/A (not a System Wide Change)
Depend packages - dnf, microdnf, PackageKit
 
There are no changes on which completion of this change depends.


== Contingency Plan ==
== Contingency Plan ==
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<!-- If you cannot complete your feature by the final development freeze, what is the backup plan?  This might be as simple as "Revert the shipped configuration".  Or it might not (e.g. rebuilding a number of dependent packages).  If you feature is not completed in time we want to assure others that other parts of Fedora will not be in jeopardy.  -->
<!-- If you cannot complete your feature by the final development freeze, what is the backup plan?  This might be as simple as "Revert the shipped configuration".  Or it might not (e.g. rebuilding a number of dependent packages).  If you feature is not completed in time we want to assure others that other parts of Fedora will not be in jeopardy.  -->
* Contingency mechanism: (What to do?  Who will do it?) N/A (not a System Wide Change)  <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
* Contingency mechanism: (What to do?  Who will do it?) N/A (not a System Wide Change)  <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
The change requires a merge and a release of the pull-request https://github.com/rpm-software-management/libdnf/pull/701
<!-- When is the last time the contingency mechanism can be put in place?  This will typically be the beta freeze. -->
<!-- When is the last time the contingency mechanism can be put in place?  This will typically be the beta freeze. -->
* Contingency deadline: N/A (not a System Wide Change)  <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
* Contingency deadline: N/A (not a System Wide Change)  <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
Should be delivered before 2019-07-24.
<!-- Does finishing this feature block the release, or can we ship with the feature in incomplete state? -->
<!-- Does finishing this feature block the release, or can we ship with the feature in incomplete state? -->
* Blocks release? N/A (not a System Wide Change), Yes/No <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
* Blocks release? N/A (not a System Wide Change), Yes/No <!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
No
* Blocks product? product <!-- Applicable for Changes that blocks specific product release/Fedora.next -->
* Blocks product? product <!-- Applicable for Changes that blocks specific product release/Fedora.next -->
No


== Documentation ==
== Documentation ==
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<!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
<!-- REQUIRED FOR SYSTEM WIDE CHANGES -->
N/A (not a System Wide Change)
https://dnf.readthedocs.io/en/latest/conf_ref.html
 
Update for documentation: https://github.com/rpm-software-management/dnf/pull/1358


== Release Notes ==
== Release Notes ==
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<!-- remove Category:ChangePageIncomplete and change it to Category:ChangeReadyForWrangler -->
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<!-- Select proper category, default is Self Contained Change -->
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[[Category:SelfContainedChange]]
[[Category:SystemWideChange]]
<!-- [[Category:SystemWideChange]] -->
<!-- [[Category:SystemWideChange]] -->

Latest revision as of 19:51, 18 September 2019

Set skip_if_unavailable default to false

Summary

Dnf team wants to change a default setting for the repo option skip_if_unavailable to FALSE.

Owner

Current status

  • Targeted release: Fedora 31
  • Last updated: 2019-09-18
  • Tracker bug: #1706160
  • Release notes tracker: #336

Detailed Description

Dnf team wants to change a default setting for the repo option skip_if_unavailable to FALSE. The option is responsible for behavior when metadata of a repository is unavailable. When it is set to false, it will stop on the first unavailable repository with raising an error. The default behavior could be overwritten by a configuration of each repository or in dnf by configuration in /etc/dnf/dnf.conf.

The behavior is not new, because it was used already by YUM, and the behavior is really essential because all Fedora ropos are already shipped with skip_if_unavailable=FALSE.

The change will be applied in libdnf library, and the changed behavior will be visible for all direct and indirect users of the library: dnf, microdnf, PackageKit, ... .

Benefit to Fedora

It should provide a better security because some Important updates from third-party repositories could be present in temporary unavailable repository, but user can easily overlook it during dnf update because the issue is reported as a warning.

Scope

  • Other developers: N/A (not a System Wide Change)
  • Release engineering: #8307 (a check of an impact with Release Engineering is needed)
  • Policies and guidelines: N/A
  • Trademark approval: not needed for this Change

Upgrade/compatibility impact

N/A (not a System Wide Change)

How To Test

Edit .repo file in /etc/yum.repos.d/* and set an url that is not accessible.

Case 1: No skip_if_unavailable in the repo file, in /etc/dnf/dnf.conf or overwritten from commandline using --setopt. Any command that requires available repositories like dnf repoquery will fail due to an error Error: Failed to synchronize cache for repo '<repo_ID>'

Case 2: Set skip_if_unavailable=true in the repo file. Any command that requires available repositories like dnf repoquery will not fail due to missing metadata of the <repo_id>

User Experience

Broken repositories are recognized early, enabling the users to act upon them by double-checking their repository configuration or filing bugs, instead of assuming no upgrades are available.


Dependencies

Depend packages - dnf, microdnf, PackageKit

There are no changes on which completion of this change depends.

Contingency Plan

  • Contingency mechanism: (What to do? Who will do it?) N/A (not a System Wide Change)

The change requires a merge and a release of the pull-request https://github.com/rpm-software-management/libdnf/pull/701

  • Contingency deadline: N/A (not a System Wide Change)

Should be delivered before 2019-07-24.

  • Blocks release? N/A (not a System Wide Change), Yes/No

No

  • Blocks product? product

No

Documentation

https://dnf.readthedocs.io/en/latest/conf_ref.html

Update for documentation: https://github.com/rpm-software-management/dnf/pull/1358

Release Notes

Retrieved from "https://fedoraproject.org/w/index.php?title=Changes/Set_skip_if_unavailable_default_to_false&oldid=553063"