Project Description
For a few months, openSUSE community has the ability to host the openSUSE rpm repositories on a commercial CDN and it is in a slowly rolling out phase. There are however remaining potential bottlenecks and optimisation opportunities. My goal for this hack week is to investigate them and make reasonable progress on resolving them.
Topics that are in scope and being investigated:
- Switch of repository metadata from gzip to the more modern (faster to decompress, smaller sizes) zstd
- investigate zypper ref performance overheads
- Understand Zsync and ZChunk and benchmark for tradeoffs
- Leverage the CDN for delivering repository metadata and a mirrorlist so that the roundtrips to download.o.org can be reduced for users outside europe.
- Investigate performance of HTTP/3 to see if it would benefit us
Goal for this Hackweek
Focus on openSUSE Tumbleweed
This project is part of:
Hack Week 23
Activity
Comments
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about 1 year ago by dirkmueller | Reply
It turns out that createrepo_c was already preparing the switch to Zstd and Zchunk, so the bulk of the work has been to fix various places in the Open Build Service and product building logic to handle that. The submissions are planned to go live on Nov 13th.
This provides overall a 10-30% reduction in download size for repository data and removes a few hundred ms in decompression time.
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about 1 year ago by dirkmueller | Reply
@mlschroe made a patch to libsolv that removes ~ 500ms from the parsing time for the tumbleweed repositories: https://github.com/openSUSE/libsolv/commit/23cbed3219bd07b5c3fa1ed8a6f2fa6c478c0fdb
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about 1 year ago by dirkmueller | Reply
I've spend several days on profiling and tuning zchunk support for the tumbleweed usecase (updating from tumbleweed snapshots) and made some upstream contributions to createrepo_c and zchunk to allow for these tunings.
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about 1 year ago by dirkmueller | Reply
@mlschroe worked on reviving zsync support in libzypp's default multicurl implementation
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about 1 year ago by dirkmueller | Reply
I've submitted necessary changes to enable curl with http/3 support. However this requires either switching to gnutls (which the security team doesn't like) or include the quictls patches for openssl. submitted the latter and waiting for maintainer review.
Similar Projects
Create openSUSE images for Arm/RISC-V boards by avicenzi
Project Description
Create openSUSE images (or test generic EFI images) for Arm and/or RISC-V boards that are not yet supported.
Goal for this Hackweek
Create bootable images of Tumbleweed for SBCs that currently have no images available or are untested.
Consider generic EFI images where possible, as some boards can hold a bootloader.
Document in the openSUSE Wiki how to flash and use the image for a given board.
Boards that I have around and there are no images:
- Rock 3B
- Nano PC T3 Plus
- Lichee RV D1
- StartFive VisionFive (has some image needs testing)
Hack Week 22
Hack Week 21
Resources
Digital art wallpapers for openSUSE Leap and Tumbleweed by lkocman
Description
We've enrolled set of new wallpapers to both Leap 16 and Tumbleweed as part of https://news.opensuse.org/2024/10/26/leap-tw-get-makeovers/
We've previewed digital art wallpapers which were not part of the initial drop. I'd like to spend time on hackweek to finialize my current Taipei (mountains) and Mauritius digital art wallpapers.
Goals
Finalize existing two digital art wallpapers for Leap and Tumbleweed https://github.com/openSUSE/branding/issues/155 Make them available as part of leap16 dir in https://github.com/openSUSE/wallpapers and update (This makes is available to Tumbleweed users as well). Update https://build.opensuse.org/package/show/X11:common:Factory/wallpapers-openSUSE-extra && Leap:16.0 && Factory.
Resources
https://github.com/openSUSE/branding/issues/155 The mauritius draft can be found in https://github.com/lkocman/geo-wallpapers
YQPkg - Bringing the Single Package Selection Back to Life by shundhammer
tl;dr
Rip out the high-level YQPackageSelector widget from YaST and make it a standalone Qt program without any YaST dependencies.
The Past and the Present
We used to have and still have a powerful software selection with the YaST sw_single module (and the YaST patterns counterpart): You can select software down to the package level, you can easily select one of many available package versions, you can select entire patterns - or just view them and pick individual packages from patterns.
You can search packages based on name, description, "requires" or "provides" level, and many more things.
The Future
YaST is on its way out, to be replaced by the new Agama installer and Cockpit for system administration. Those tools can do many things, but fine-grained package selection is not among them. And there are also no other Open Source tools available for that purpose that even come close to the YaST package selection.
Many aspects of YaST have become obsolete over the years; many subsystems now come with a good default configuration, or they can configure themselves automatically. Just think about sound or X11 configuration; when did you last need to touch them?
For others, the desktops bring their own tools (e.g. printers), or there are FOSS configuration tools (NetworkManager, BlueMan). Most YaST modules are no longer needed, and for many others there is a replacement in tools like Cockpit.
But no longer having a powerful fine-grained package selection like in YaST sw_single will hurt. Big time. At least until there is an adequate replacement, many users will want to keep it.
The Idea
YaST sw_single always revolved around a powerful high-level widget on the abstract UI level. Libyui has low-level widgets like YPushButton, YCheckBox, YInputField, more advanced ones like YTable, YTree; and some few very high-level ones like YPackageSelector and YPatternSelector that do the whole package selection thing alone, working just on the libzypp level and changing the status of packages or patterns there.
For the YaST Qt UI, the YQPackageSelector / YQPatternSelector widgets work purely on the Qt and libzypp level; no other YaST infrastructure involved, in particular no Ruby (or formerly YCP) interpreter, no libyui-level widgets, no bindings between Qt / C++ and Ruby / YaST-core, nothing. So it's not too hard to rip all that part out of YaST and create a standalone program from it.
For the NCurses UI, the NCPackageSelector / NCPatternSelector create a lot of libyui widgets (inheriting YWidget / NCWidget) and use a lot of libyui calls to glue them together; and all that of course still needs a lot of YaST / libyui / libyui-ncurses infrastructure. So NCurses is out of scope here.
Preparatory Work: Initializing the Package Subsystem
To see if this is feasible at all, the existing UI examples needed some fixing to check what is needed on that level. That was the make-or-break decision: Would it be realistically possible to set the needed environment in libzypp up (without being stranded in the middle of that task alone at the end of the hack week)?
Yes, it is: That part is already working:
https://github.com/yast/yast-ycp-ui-bindings/pull/71
Go there for a screenshot
That's already halfway there.
The complete Ruby code of this example is here. The real thing will be pure C++ without any YaST dependencies.
The Plan
- DONE: Clone libyui where libyui (high-level), libyui-qt, libyui-qt-pkg live
Update Haskell ecosystem in Tumbleweed to GHC-9.10.x by psimons
Description
We are currently at GHC-9.8.x, which a bit old. So I'd like to take a shot at the latest version of the compiler, GHC-9.10.x. This is gonna be interesting because the new version requires major updates to all kinds of libraries and base packages, which typically means patching lots of packages to make them build again.
Goals
Have working builds of GHC-9.10.x and the required Haskell packages in 'devel:languages:haskell` so that we can compile:
git-annex
pandoc
xmonad
cabal-install
Resources
- https://build.opensuse.org/project/show/devel:languages:haskell/
- https://github.com/opensuse-haskell/configuration/
- #discuss-haskell
- https://www.twitch.tv/peti343
New migration tool for Leap by lkocman
Update
I will call a meeting with other interested people at 11:00 CET https://meet.opensuse.org/migrationtool
Description
SLES 16 plans to have no yast tool in it. Leap 16 might keep some bits, however, we need a new tool for Leap to SLES migration, as this was previously handled by a yast2-migration-sle
Goals
A tool able to migrate Leap 16 to SLES 16, I would like to cover also other scenarios within openSUSE, as in many cases users would have to edit repository files manually.
- Leap -> SLES docs
- Leap 15 -> Leap 16 (or generally within Leap releases)
- Leap -> Tumbleweed
- Leap -> Slowroll
Out of scope is any migration to an immutable system. I know Richard already has some tool for that.
Resources
code-o-o/leap/features#173 YaST stack reduction
Repository
"autoremove" functionality for zypper by e_bischoff
The purpose would be to have the equivalent of Ubuntu's "apt-get autoremove" functionality.
When you install package P, it might draw in dependancies D1, D2, ... Dn automatically.
When you later uninstall P, the dependancies D1, D2, ..., Dn might remain on your system.
If you keep installing and uninstalling packages, after a while your system remains cluttered with things you don't need.
The idea would be to mark all dependancies that were installed but not explicitely requested as "installed automatically". Then a command like "zypper autoremove" could remove them at once if they are not needed anymore.
Approaches seen online
After scouring forms for solutions these are some alias's used to replicate the functionality
zypper packages --unneeded | awk -F'|' 'NR==0 || NR==1 || NR==2 || NR==3 || NR==4 {next} {print $3}' | grep -v Name | sudo xargs zypper remove --clean-deps
This one is a script and has bashisms
bash mapfile -t unneeded < <(zypper --quiet pa --unneeded | awk '$1 == "i" { print $5, "-", $7 }') (( ${#unneeded@]} )) && sudo zypper --quiet rm --clean-deps --details "${unneeded@]}"
sudo zypper rm $(zypper pa --unneeded | awk '/i / {print $3}' FS='|' | uniq | tr -d ' ')
Based on testing zypper packages --orphaned
provides packages that are not in any repo, even if a user has explicitly installed them, so --orphaned
may not be the way to go, instead focusing on --unneeded
Ansible for add-on management by lmanfredi
Description
Machines can contains various combinations of add-ons and are often modified during the time.
The list of repos can change so I would like to create an automation able to reset the status to a given state, based on metadata available for these machines
Goals
Create an Ansible automation able to take care of add-on (repo list) configuration using metadata as reference
Resources
- Machines
- Repositories
- Developing modules
- Basic VM Guest management
- Module
zypper_repository_list
- ansible-collections community.general
Results
Created WIP project Ansible-add-on-openSUSE
Switch software-o-o to parse repomd data by hennevogel
Currently software.opensuse.org search is using the OBS binary search for everything, even for packages inside the openSUSE distributions. Let's switch this to use repomd data from download.opensuse.org
A CLI for Harvester by mohamed.belgaied
[comment]: # Harvester does not officially come with a CLI tool, the user is supposed to interact with Harvester mostly through the UI [comment]: # Though it is theoretically possible to use kubectl to interact with Harvester, the manipulation of Kubevirt YAML objects is absolutely not user friendly. [comment]: # Inspired by tools like multipass from Canonical to easily and rapidly create one of multiple VMs, I began the development of Harvester CLI. Currently, it works but Harvester CLI needs some love to be up-to-date with Harvester v1.0.2 and needs some bug fixes and improvements as well.
Project Description
Harvester CLI is a command line interface tool written in Go, designed to simplify interfacing with a Harvester cluster as a user. It is especially useful for testing purposes as you can easily and rapidly create VMs in Harvester by providing a simple command such as:
harvester vm create my-vm --count 5
to create 5 VMs named my-vm-01
to my-vm-05
.
Harvester CLI is functional but needs a number of improvements: up-to-date functionality with Harvester v1.0.2 (some minor issues right now), modifying the default behaviour to create an opensuse VM instead of an ubuntu VM, solve some bugs, etc.
Github Repo for Harvester CLI: https://github.com/belgaied2/harvester-cli
Done in previous Hackweeks
- Create a Github actions pipeline to automatically integrate Harvester CLI to Homebrew repositories: DONE
- Automatically package Harvester CLI for OpenSUSE / Redhat RPMs or DEBs: DONE
Goal for this Hackweek
The goal for this Hackweek is to bring Harvester CLI up-to-speed with latest Harvester versions (v1.3.X and v1.4.X), and improve the code quality as well as implement some simple features and bug fixes.
Some nice additions might be: * Improve handling of namespaced objects * Add features, such as network management or Load Balancer creation ? * Add more unit tests and, why not, e2e tests * Improve CI * Improve the overall code quality * Test the program and create issues for it
Issue list is here: https://github.com/belgaied2/harvester-cli/issues
Resources
The project is written in Go, and using client-go
the Kubernetes Go Client libraries to communicate with the Harvester API (which is Kubernetes in fact).
Welcome contributions are:
- Testing it and creating issues
- Documentation
- Go code improvement
What you might learn
Harvester CLI might be interesting to you if you want to learn more about:
- GitHub Actions
- Harvester as a SUSE Product
- Go programming language
- Kubernetes API