Results

A sane DSL for udev rules by mwilck

Description

The "language" in which udev rules are written as documented in udev(7) is horrible. To name just a few problems:

• The only control statements are LABEL and GOTO.
• Conditionals are the most important part of the language, but it supports only conjunction ("AND"), forcing developers to use GOTO even for simple "OR" relations.
• The AND operation is denoted by a comma (,).
• Conventions for quoting are weird.
• There aren't even basic string handling facilities.
• There is no API for passing flags between different rule sets, just a set of global environment variables.
• Environment variales are written in ENV{FOO} when assigned to, but $env{FOO} or %E{FOO} when dereferenced.

While this is ok-ish for the simple set of tasks the language was originally intended for, it makes larger rule sets with complex logic almost impossible to read and understand. Examples for such complex rule sets are the device-mapper and multipath rules.

While working on the multipath rule sets a few weeks ago, I found myself desparately translating the rules into some pythonesque pseudo-code in order to make sure I fully understand the code flow.

This project wants to explore the possibilities to replace this weird DSL with something saner. The idea is to embed Lua in udev, and rewrite the udev rule sets as Lua modules.

It's meant as a fun project that may have practical merits. I am aware that it's questionable whether the systemd maintainers are going to embrace this. I think it will only have a tiny chance if it really improves readability of rules massively, while impacting neither performance nor code size too badly. I have good hopes in terms of performance as Lua has the reputation to be fast, but code size will of course increase, and so will the list of dependencies of systemd.

Goals

1. Learn how to write Lua, and how to embed it in C code and write C modules for it. I've read the manual, but I can't say that I'm fluent with it yet.
2. Design an API for udev in Lua. Figure out how to expose status like device properties (environment variables), tags, and other variables like ACTION and SUBSYSTEM to Lua code, and tentatively re-write a set of representative rule sets in this new DSL. This may need several attempts until the rules can be written in an intuitive way.
3. Create the basic framework for embedding Lua in udev and providing the environment for the Lua code.
4. Write libraries with helper funtions to be used by the Lua. For example, we'll need code to access sysfs in order to provide ATTRS and similar features of udev. I'm not certain yet but for most of this it will probably make sense to write the code in C and make it callable by Lua, as udev already has powerful mechanisms for accessing sysfs attributes.
5. One problem is that the Lua standard library provides getenv but not setenv. We need to be able to set environment variables in order to work with external programs to replicate the functionality of the PROGRAM and IMPORT{program} directives.
6. Eventually, make the entire feature set of the udev language available.
7. Eventually, rewrite the entire set of upstream rules (to the extent we're aware of) in Lua.
8. While I'd love trash the original language, I guess it needs to continue to exist.

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Hack on isotest-ng - a rust port of isotovideo (os-autoinst aka testrunner of openQA) by szarate

Description

Some time ago, I managed to convince ByteOtter to hack something that resembles isotovideo but in Rust, not because I believe that Perl is dead, but more because there are certain limitations in the perl code (how it was written), and its always hard to add new functionalities when they are about implementing a new backend, or fixing bugs (Along with people complaining that Perl is dead, and that they don't like it)

In reality, I wanted to see if this could be done, and ByteOtter proved that it could be, while doing an amazing job at hacking a vnc console, and helping me understand better what RuPerl needs to work.

I plan to keep working on this for the next few years, and while I don't aim for feature completion or replacing isotovideo tih isotest-ng (name in progress), I do plan to be able to use it on a daily basis, using specialized tooling with interfaces, instead of reimplementing everything in the backend

Todo

• Add make targets for testability, e.g "spawn qemu and type"
• Add image search matching algorithm
• Add a Null test distribution provider
• Add a Perl Test Distribution Provider
• Fix unittests https://github.com/os-autoinst/isotest-ng/issues/5
• Research OpenTofu how to add new hypervisors/baremetal to OpenTofu
• Add an interface to openQA cli

Goals

• Implement at least one of the above, prepare proposals for GSoC
• Boot a system via it's BMC

Resources

See https://github.com/os-autoinst/isotest-ng

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Implement a CLI tool for Trento - trentoctl by nkopliku

Description

Implement a trentoctl CLI for interacting with a trento installation

Goals

• learn rust
• implement an initial trentoctl tool to enhance trento automation
• have fun

Resources

trento rust. TUIs listed on this other hackweek project Hack on rich terminal user interfaces

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Write an url shortener in Rust (And learn in the way) by szarate

So I have 469.icu :), it's currently doing nothing... (and for sale) but in the meantime, I'd like to write an url shortener from scratch and deploy it on my own server

https://github.com/foursixnine/url-manager-rs/tree/main

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Grapesss: a physical Shamir's Secret Sharing application [ESP32-C3 + Mobile] by ecandino

Description

A couple of years ago I created StegoSecretS, a small cli used to encrypt and split a secret into multiple keys, using the Shamir's Secret Sharing algorithm.

The idea is to re-implement the project using physical devices. One device alone will be useless, but when close together they can be used to decrypt the secret.

On a practical side the user encrypts the secret with a mobile application. The same application is used to split the secret, and load the partial keys into different micro-controllers. Another user will be able to decrypt the secret only having at least N devices close together (using the application).

I'm planning to use a couple of ESP32-C3 I bought, and build a very simple Android mobile application.

Goals

• Learn about Rust and micro-controllers (ESP32-C3)
• Learn about mobile applications (Android and Kotlin)

Resources

• Shamir's Secret Sharing
• The esp-rs Book
• Android - Kotlin

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Better diff'ing experience by MSirringhaus

Description

For diff-ing directories, I usually like to use meld, but it struggles a lot with large trees. Experiment with writing a TUI meld-clone for diffing directories and files

Goals

Get first prototype going of a TUI that can show

• diffs of text-files
• diffs of directories.

Stretch goals

• Themes
• Filters (no whitespace, etc.)
• Live config changes (Show/hide line numbers, etc.)

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Create object oriented API for perl's YAML::XS module, with YAML 1.2 Support by tinita

Description

YAML::XS is a binding to libyaml and already quite old, but the most popular YAML module for perl. There are two main issues:

• It uses global package variables to influence behaviour.
• It didn't implement the loading of types like numbers and booleans according to the YAML spec (neither 1.1 nor 1.2).

Goals

Create a new interface which works object oriented. Currently YAML::XS exports a list of functions.

• The new API will allow to create a YAML::XS object containing configuration influencing the behaviour of loading and dumping.
  • It keeps the libyaml parser and emitter structs in memory, so repeated calls can save the creation of those structs
• It will by default implement the YAML 1.2 Core Schema, so it is compatible to other YAML processors in perl and in other languages
• If I have time, I would like to add the merge << key feature as an option. We could then use it in openQA as a replacement for YAML::PP to be faster.

I already created a proof of concept with a minimal functionality some weeks before this HackWeek.

Resources

• Work is currently happening on the oop branch
• Experimental release waiting for user feedback: https://github.com/perlpunk/yaml-libyaml-pm/releases
• Diff

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Setup a new openQA on more powerful server by JNa

Description

• currently local openQA storage is insufficient

Goals

-Migrate to more powerful machine

Resources

-Service Rainbow

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Hack on isotest-ng - a rust port of isotovideo (os-autoinst aka testrunner of openQA) by szarate

Description

Some time ago, I managed to convince ByteOtter to hack something that resembles isotovideo but in Rust, not because I believe that Perl is dead, but more because there are certain limitations in the perl code (how it was written), and its always hard to add new functionalities when they are about implementing a new backend, or fixing bugs (Along with people complaining that Perl is dead, and that they don't like it)

In reality, I wanted to see if this could be done, and ByteOtter proved that it could be, while doing an amazing job at hacking a vnc console, and helping me understand better what RuPerl needs to work.

I plan to keep working on this for the next few years, and while I don't aim for feature completion or replacing isotovideo tih isotest-ng (name in progress), I do plan to be able to use it on a daily basis, using specialized tooling with interfaces, instead of reimplementing everything in the backend

Todo

• Add make targets for testability, e.g "spawn qemu and type"
• Add image search matching algorithm
• Add a Null test distribution provider
• Add a Perl Test Distribution Provider
• Fix unittests https://github.com/os-autoinst/isotest-ng/issues/5
• Research OpenTofu how to add new hypervisors/baremetal to OpenTofu
• Add an interface to openQA cli

Goals

• Implement at least one of the above, prepare proposals for GSoC
• Boot a system via it's BMC

Resources

See https://github.com/os-autoinst/isotest-ng

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Enhance UV openQA helper script by mdonis

Description

A couple months ago an UV openQA helper script was created to help/automate the searching phase inside openQA for a given MU to test. The script searches inside all our openQA job groups (qam-sle) related with a given MU and generates an output suitable to add (copy & paste) inside the update log.

This is still a WIP and could use some enhancements.

Goals

• Move script from bash to python: this would be useful in case we want to include this into MTUI in the future. The script will be separate from MTUI for now. The idea is to have this as a CLI tool using the click library or something similar.
• Add option to look for jobs in other sections inside aggregated updates: right now, when looking for regression tests under aggregated updates for a given MU, the script only looks inside the Core MU job group. This is where most of the regression tests we need are located, but some MUs have their regression tests under the YaST/Containers/Security MU job groups. We should keep the Core MU group as a default, but add an option to be able to look into other job groups under aggregated updates.
• Remove the -a option: this option is used to indicate the update ID and is mandatory right now. This is a bit weird and goes against posix stardards. It was developed this way in order to avoid using positional parameters. This problem should be fixed if we move the script to python.

Some other ideas to consider:

• Look into the QAM dashboard API. This has more info on each MU, could use this to link general openQA build results, whether the related RR is approved or not, etc
• Make it easier to see if there's regression tests for a package in an openQA test build. Check if there's a possibility to search for tests that have the package name in them inside each testsuite.
• Unit testing?

More ideas TBD

Resources

https://github.com/os-autoinst/scripts/blob/master/openqa-search-maintenance-core-jobs

https://confluence.suse.com/display/maintenanceqa/Guide+on+how+to+test+Updates

Post-Hackweek update

All major features were implemented. Unit tests are still in progress, and project will be moved to the SUSE github org once everything's done. https://github.com/mjdonis/oqa-search

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Make more sense of openQA test results using AI by livdywan

Description

AI has the potential to help with something many of us spend a lot of time doing which is making sense of openQA logs when a job fails.

User Story

Allison Average has a puzzled look on their face while staring at log files that seem to make little sense. Is this a known issue, something completely new or maybe related to infrastructure changes?

Goals

• Leverage a chat interface to help Allison
• Create a model from scratch based on data from openQA
• Proof of concept for automated analysis of openQA test results

Bonus

• Use AI to suggest solutions to merge conflicts
  • This would need a merge conflict editor that can suggest solving the conflict
• Use image recognition for needles

Resources

• TensorFlow
• open-webui
• openQA instance of openSUSE
• openQA documentation

Timeline

Day 1

• Conversing with open-webui to teach me how to create a model based on openQA test results
  • Asking for example code using TensorFlow in Python
  • Discussing log files to explore what to analyze
  • Drafting a new project called Testimony (based on Implementing a containerized Python action) - the project name was also suggested by the assistant

Day 2

• Using NotebookLLM (Gemini) to produce conversational versions of blog posts
  • Writing openQA tests in Python
  • Developing in distrobox containers
• Researching the possibility of creating a project logo with AI
  • Asking open-webui, persons with prior experience and conducting a web search for advice

Highlights

• I briefly tested compared models to see if they would make me more productive. Between llama, gemma and mistral there was no amazing difference in the results for my case.
• Convincing the chat interface to produce code specific to my use case required very explicit instructions.
• Asking for advice on how to use open-webui itself better was frustratingly unfruitful both in trivial and more advanced regards.
• Documentation on source materials used by LLM's and tools for this purpose seems virtually non-existent - specifically if a logo can be generated based on particular licenses

Outcomes

• Chat interface-supported development is providing good starting points and open-webui being open source is more flexible than Gemini. Although currently some fancy features such as grounding and generated podcasts are missing.
• Allison still has to be very experienced with openQA to use a chat interface for test review. Publicly available system prompts would make that easier, though.

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New features in openqa-trigger-from-obs for openQA by jlausuch

Description

Implement new features in openqa-trigger-from-obs to make xml more flexible.

Goals

One of the features to be implemented: - Possibility to define "VERSION" and "ARCH" variables per flavor instead of global.

Resources

https://github.com/os-autoinst/openqa-trigger-from-obs

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