Wiki - https://fedoraproject.org/wiki/Changes/CoreOSStopPublishingOSTree
Discussion thread -
https://discussion.fedoraproject.org/t/f43-change-proposal-stop-publishing-updates-to-ostree-repository-for-coreos-self-contained/148878

This is a proposed Change for Fedora Linux.
This document represents a proposed Change. As part of the Changes
process, proposals are publicly announced in order to receive
community feedback. This proposal will only be implemented if approved
by the Fedora Engineering Steering Committee.

== Summary ==

Stop publishing new updates for Fedora CoreOS to the cannonical OStree
repository at ostree.fedoraproject.org.
Instead, rely on OCI Images from the fedora quay.io repository.

== Owners ==

* Name: [[User:jbtrystram| Jean-Baptiste Trystram]] <jbtryst...@redhat.com>
* Name: [[User:Dustymabe| Dusty Mabe]] <dm...@redhat.com>


== Detailed Description ==

With the rebase to Fedora 42 for Fedora CoreOS, we changed the source
of updates from the OSTree repository to OCI containers from
quay.io/fedora/fedora-coreos.

During the Fedora 42 release cycle, we will migrate existing Fedora
CoreOS nodes to use OCI images as well.

See https://fedoraproject.org/wiki/Changes/CoreOSOstree2OCIUpdates for
more details

As a continuation of that change, we will stop publishing updates to
the CoreOS branches built on Fedora 43 content in the OSTree
repository as they will no longer be used.

== Feedback ==

None yet.

== Benefit to Fedora ==

This will reduce releases workload and use less resources from Fedora
Infrastructure.

== Scope ==

* Proposal owners:
** Will update Fedora CoreOS release pipeline to stop publishing data
to the OSTree repository.
** Will update relevant documentation in Fedora CoreOS docs.
* Policies and guidelines: N/A (not needed for this Change)
* Trademark approval: N/A (not needed for this Change)
* Alignment with the Fedora Strategy: This align with the bootable
containers initiative.

== Upgrade/compatibility impact ==

<!-- What happens to systems that have had a previous versions of
Fedora installed and are updated to the version containing this
change? Will anything require manual configuration or data migration?
Will any existing functionality be no longer supported? -->


== How To Test ==

New images of Fedora CoreOS next are already set to be deployed from
containers since the rebase to Fedora 42.
You can start a 42.20250316.1.0 image and watch it update from quay.io
instead of the usual OSTree repository.

== User Experience ==

Users who have not opted out of the OCI migration in Fedora 42 will
experience no change. Users who have opted out of the OCI migration
and are still using the OSTree repo for updates will need to migrate
to OCI to continue to receive updates for Fedora 43+.

== Contingency Plan ==

Keep releasing to the OSTree repository.

== Documentation ==

To be written. Tracked in:
https://github.com/coreos/fedora-coreos-tracker/issues/1895

== Release Notes ==

To be written. Tracked in:
https://github.com/coreos/fedora-coreos-tracker/issues/1895




-- 
Aoife Moloney

Fedora Operations Architect

Fedora Project

Matrix: @amoloney:fedora.im

IRC: amoloney

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