who -u

Dan Čermák

Why openSUSE?

• RPM based distribution
• unique tech stack: OBS, openQA, zypper

There's a lot of openSUSE

• Tumbleweed
• MicroOS
• Aeon
• Kalpa
• Slow Roll
• Leap
• Leap Micro

The Open Build Service

Projects & Packages

Automated Rebuilds

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

_link

Repository Assembly?

Test automation

Run the installer every night?

Ain't nobody got time for that   (╯°□°)╯︵ ┻━┻

• 👍️ Test the Happy Path
• 👎️ CI
• 👎️ Regression Testing

But wait there's more

Kiwi

Image Builder

• openSUSE's & SUSE's image builder
• cross distribution support

pbuild

OBS, but on your local box

Packaging Philosophy

• automation > manual
• pragmatism > purity
• a bit less colaboration (but it's getting besser)

The Factory Process

The openSUSE Community

Governance: openSUSE Board

Anything else?

No 🙅

Heroic Developers and Hidden Angels

Those who do, decide.

Conclusion

Give those that can the tools to achieve greatness

But don't leave the rest behind

Links

• build.opensuse.org
• openqa.opensuse.org

github.com/dcermak/building-opensuse

Why even build a distribution?

Just pip/npm/cargo install everything!

$ pip3 install pysqlite3
...
Failed to build pysqlite3
Installing collected packages: pysqlite3
  Running setup.py install for pysqlite3 ... error
  error: subprocess-exited-with-error

  × Running setup.py install for pysqlite3 did not run successfully.

oops 🫠

From Sources to an Installer

A long time ago…

$ cat INSTALL

BASIC INSTALLATION

On most Unix systems, you build Emacs by first running the
'configure' shell script.  This attempts to deduce the
correct values for various system-dependent variables and
features, and find the directories where certain system
headers and libraries are kept.  In a few cases, you may
need to explicitly tell configure where to find some things,
or what options to use.

Ain't nobody got time for that   (╯°□°)╯︵ ┻━┻

It starts with packages

RPM packages

The people behind this

Packaging Team

• update packages
• fix build & test issues
• triage bugreports
• backport bugfixes

You said Dependencies?

Dependency Hell 👿

Distribution Assembly

What's in a distribution?

• installation ISOs
• disk & container images
• binary packages
• repositories

The Distribution Building Pipeline

Repository Assembly

The people behind this

Release Engineering

• review package submissions & assign to stagings
• review assembly & integration issues
• review tests & bugs

Build system

The people behind this

Buildservice and Buildops

openSUSE/open-build-service

• develop the build service
• run the infrastructure

Testing/QE

The people behind this

QE & Test tooling Team

• implement test cases
• improve test automation
• review test runs
• verify bugfixes
• manual testing

Infrastructure

openSUSE Heroes

• run the infrastructure
• maintain automation
• moderation