F43 Change Proposal: Ruby on Rails 8.0 (self-contained)

Wiki - https://fedoraproject.org/wiki/Changes/Ruby_on_Rails_8.0
Discussion thread -
https://discussion.fedoraproject.org/t/f43-change-proposal-ruby-on-rails-8-0-self-contained/156327

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 ==
Ruby on Rails 8.0 is the latest version of well known web framework
written in Ruby.

== Owner ==
* Name: [[User:vondruch| Vít Ondruch]]
* Email: vondruch@redhat.com, ruby-sig@lists.fedoraproject.org



== Detailed Description ==
The Ruby on Rails stack is evolving quickly and Fedora needs to keep
pace with it. Therefore the whole Ruby on Rails stack should be
updated from 7.0 in Fedora 42 to 8.0 (latest version) in Fedora 43.
This will ensure that all the Ruby developers using Fedora have the
latest and greatest RPM-packaged Ruby on Rails.

== Feedback ==


== Benefit to Fedora ==
This update will keep Fedora up-to-date and will ensure that the
current Ruby on Rails developers stay with us as they will get support
for system-packaged Ruby on Rails of the latest version. Update to
Rails 8.0 contains hundreds of fixes and improvements across all the
frameworks. For new features, please see [[#User_Experience|User
Experience]].

== Scope ==
* Proposal owners:
** The whole Rails stack has to be updated.
** Some dependencies of the Rails stack will need update.
** Current development state can be observed in
[https://copr.fedorainfracloud.org/coprs/vondruch/ror8/ vondruch/ror8]
COPR repository.

* Other developers: Update Rails dependent packages to be working with
Ruby on Rails 8.0

* Policies and guidelines: N/A (not needed for this Change)

* Trademark approval: N/A (not needed for this Change)


== Upgrade/compatibility impact ==
Web applications build above Ruby on Rails framework might need to be
updated. Official upstream upgrade guide might come handy:
http://guides.rubyonrails.org/upgrading_ruby_on_rails.html


== How To Test ==

* No special hardware is needed.
* Not all dependencies for default app are available in Fedora. Drop
those dependencies or grab them from RubyGems repo.

=== To test only Rails itself ===
<pre>
dnf install rubygem-rails
rails new app
cd app && rails s
</pre>
* Go to http://127.0.0.1:3000/ and make sure you are running Rails 8.0.x

=== To test the complete feature including generating a new Rails app
using RPM ===
<pre>
dnf group install 'Ruby on Rails'
rails new app --skip-bundle && cd app
rails s
</pre>
* Go to http://127.0.0.1:3000/ and make sure you are running Rails 8.0.x

=== Rails app with Fedora only dependencies ===

<pre>
dnf group install 'Ruby on Rails'
rails new app --skip-bundle --skip-kamal --skip-solid --skip-brakeman
--skip-rubocop --skip-thruster --skip-bootsnap --skip-hotwire
cd app
rails s
</pre>
* Go to http://127.0.0.1:3000/ and make sure you are running Rails 8.0.x

== User Experience ==
* New version of Ruby on Rails (8.0) available
* The most significant Rails 8.0 features:
** Trifecta of new database-backed adapters named Solid Cable, Solid
Cache, and Solid Queue (not part of Fedora ATM).
** SQLite ready for production
** Sprockets replaced with Propshaft
** Generating the authentication basics

== Dependencies ==
* Ruby on Rails framework consists of multiple packages, which all
needs to be updated at once. As part of the update, Rack family of gem
will also be updated.


== Contingency Plan ==
* Contingency mechanism: None needed. Rails stack won't be updated
until all its dependencies are in Rawhide. After that, it will be a
simple matter of updating the core packages (and their dependencies)
via side-tag.
* Contingency deadline: N/A (not a System Wide Change)
* Blocks release? N/A (not a System Wide Change)

== Documentation ==
* http://api.rubyonrails.org/

== Release Notes ==
* https://rubyonrails.org/2024/11/7/rails-8-no-paas-required
* https://guides.rubyonrails.org/8_0_release_notes.html


--
Aoife Moloney

Fedora Operations Architect

Fedora Project

Matrix: @amoloney:fedora.im

IRC: amoloney

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