who -u

Dan Čermák

Why?

• very similar distributions, but no shared ancestry
• vastly different build systems
• learn from each other?

Parts of a Build System

The Monolith

The Open Build Service

• distro building swiss army knife
• can build RPMs, DEBs, Arch tar.xz, containers, VMs, …
• automated rebuilds on transitive dependency changes
• custom version control system
• staging area

Overview

Projects and packages

Version Control

• osc mimics subversion
• no subfolders or branches
• branching creates new projects with a _link

prjconf

• configure project building & publishing
• tweak macros & dependencies of a project

BuildFlags: sbom:spdx
PublishFlags: withsbom
Macros:
%suse_version 1699
%is_opensuse 1
%build_ldflags %{?_lto_cflags}
:Macros

Submitrequests

• send changes of a forked (aka "branched") package
• send new packages into projects

The Swarm

Pagure

• FLOSS git forge written in Python using Flask + PyGit
• every package has repositories for: source code, wiki, issues + pull requests, metadata of PRs

Koji

• RPM build system using mock
• only one production build per NEVR can exist
• builds persist for ever

Pungi

distribution composition tool

Image & Container Building

1. OSBS
2. ImageFactory
3. kiwi + koji
4. osbuild

MBS

let's not talk about this one 🙊

Koschei

• dependency & build tracker
• runs koji scratch builds

Bodhi

• update testing facility
• vote on updates
• gate Rawhide

Fedora Messaging & Notifications

• messaging: AMQP based messaging bus
• feeds Fedora Message Notifications (FMN)

What about COPR?

• community build system

The Good, The Bad and The Ugly

The Good

• very flexible
• "easy" to carry out large scale changes
• one place for everything

• simple individual systems
• easy to extend

The Bad

• getting started

• the version control
• handling of "stable" distributions
• Unresolvable: have choice for

• no automatic rebuilds
• "misuse" of systems

The Ugly

• complexity & edge cases
• hard to extend

• too many systems + glue
• duplication

Who's better?

• both setups suck in their own ways
• development → OBS
• "stable" distribution → Fedora
• development & stable? 🤷

Questions?

Answers!