Chaos Computer Club - archive feed

Lessons learned operating thousands of stateful production clusters on top of Fedora and systemd-nspawn. Aiven is a cloud data platform operating thousands of production clusters on top of different cloud infrastructure providers (e.g. AWS, GCP). We offer the latest open source database & streaming engines to our users around the world, and implement most of our platform using the latest open sour...

re:claimID is a decentralised service for self-sovereign personal data sharing. It allows users to reclaim their privacy and control over their digital identities and data while at the same time offering standard compliant protocol support through OpenID Connect. In this lecture, we present the motivation behind the technology and the technical foundations. Today, users are often required to share...

During development and testing it is often needed to test different kernels or run various sets of unit tests quickly. With lrun it is possible to do exactly that. It utilizes existing technology including UML, KVM and Namespaces to facility different environments. It has been in active use for testing Bluetooth and Wi-Fi features on Linux and can be easily extended to other technologies in the fu...

This session provides an entertaining yet informative introduction into everything you need to know about OpenStreetMap. If you're new to OpenStreetMap, or maybe just know a little, then this session will fill you in on everything you need to know about OpenStreetMap. How did it start? How does it work? How can you contribute, and how can you use the data? What is this "Mapnik" think I keep hearin...

Building forward from our work presented last year at State of the Map, we have created a system to assist mappers via machine learned models. In addition, we have built an automated ingestion framework for OSM data at scale that allows us to selectively update parts of the map instead of doing a full snapshot change. Building forward from our work on __Mobius Logical Changesets__ (presented last...

Closing of All Systems Go! 2019 about this event: https://cfp.all-systems-go.io/ASG2019/talk/WB9TFT/

CyclOSM is a new cycling render. It is free and aims at rendering new bicycle-specific features, in order to take into account the diversity of cycling practices. CyclOSM is a new cycling render. It is free and aims at rendering more features than OpenCycleMap, in order to take into account the diversity of cycling practices. For urban bikers (bike commuting), we decided to render all available ty...

Bolsonaro is the most well know Face of brasilian Fascism and the so called “new right”. Although he is famous by his, lets say, bizzars declarations - what gave him the title of “The brasilian Trump” and a reputation of a crazy character - Bolsonaro is not just an excentric exception. On the contrary, he represents a strategy of Capitalism and a new fascist fog which is covering the planet. To un...

Get to know the Board and the Working Groups. Together, we run the OSMF. Let's use the SotM to have a real face to face meeting. The public is invited to join the conversation too. SotM is about the community meeting the community. But we don't always seek out everyone we would like to talk to. So let's use this space to make sure as many members of the working groups and the board get to know eac...

Eine kurze Einführung in Qubes-OS - einem vernünftig sicherem Betriebssystem - und ein Erfahrungsbericht über die private Nutzung des selbigen. Der Vortrag beschreibt die Herausforderungen mit klassischen Betriebssystemen und die Gründe für Qubes OS. Es folgt ein Überblick über die Architektur und ein paar Live-Beispiele. Zum Abschluss gibt es noch ein paar Informationen aus meiner Erfahrung mit Q...

Der Talk bietet einen aktuellen Einblick zum Statua Quo zum Thema Entwicklung und Anwendung von Algorithmen und KI, den damit beteiligten Akteuren und den Bugs … Der Talk bietet einen aktuellen Einblick zum Statua Quo zum Thema Entwicklung und Anwendung von Algorithmen und KI, den damit beteiligten Akteuren und den Bugs. Der Schwerpunkt liegt aber auf der Frage, welche KI brauchen und wollen wir....

Not every data item in OpenStreetMap can have an immediate impact on the rendered map. But you can make every data item visible on a map and share the links or share the data, no matter how much the item is special interest. This is the purpose of Overpass API and Overpass Turbo. Our aim is to create special interest maps like this one for [historic street lamps](http://osmstreetlight.bplaced.net/...

Sometimes things in our society can look as if they were always there. Take for example police. Today majority of the people living next to us can’t imagine the world without police in our neighborhood. However it was not always like that. Kristian Williams, anarchist and author of Our Enemies in Blue and Fire the Cops, will talk about the history of policing in the United States, from its origin...

Transactional updates (also called atomic updates) are a way to update a system without interfering with the currently running system - making this a rock-solid way to update any machine, from embedded systems to cluster nodes. What do openSUSE MicroOS, Fedora CoreOS, Chrome OS, Ubuntu Core and Android have in common? All of them are using a *read-only root file system* and so called *transactiona...

The embedded world has dealt with image creation for decades. Why not use those decade of experience to reliably create image for the datacenter world ? Building an OS image in a reliable, reproducible, tracable and archivable way is a hard problem, but it is a problem that the embedded world has been working on for decades and where mature and easy to use tools exist Nowdays, the world of contain...

How did Microsoft made SQL Server available on Linux, Containers and ARM CPUs? Come hear the story from the SQL Server engineering team. We'd love to tell the story on how we made SQL Server available to ecosystems outside of Windows in this talk. It's a great story that involves quite a bit of interesting technologies and we'd like to share that with everyone! about this event: https://cfp.all-sy...

Opening of All Systems Go! about this event: https://cfp.all-systems-go.io/ASG2019/talk/A3KZGD/

Resource control is reaching feature completeness and the focus at facebook is shifting towards productionizing. Let's go over what feature completeness means and the productionizing efforts. Until recently, we never had all the kernel and system features needed to implement work-conserving comprehensive resource control. With the recent additions of senpai, io.weight and cpu.headroom and others,...

Several of the standard tools like `grep` and `find` have rewritten alternatives, performing the tasks much quicker and have a more intuitive interface. Present some of them. about this event: https://cfp.all-systems-go.io/ASG2019/talk/JFC7VC/

GNU poke is a new interactive editor for binary data. Not limited to editing basic entities such as bits and bytes, it provides a full-fledged procedural, interactive programming language designed to describe data structures and to operate on them. GNU poke is a new interactive editor for binary data. Not limited to editing basic entities such as bits and bytes, it provides a full-fledged procedur...

Tilo Jung, Stefan Schulz und Hans Jessen kommen nach Dresden und machen den zweiten A!Live außerhalb Berlins. https://aufwachen-podcast.de/termine/alive-in-dresden/ about this event: https://datenspuren.de/2019/fahrplan/events/10470.html

The difficult task to checkpoint and restore a process is used in many container runtimes to implement container live migration. This talk will give details how CRIU is able to checkpoint and restore processes, how it is integrated in different container runtimes and which optimizations CRIU offers to decrease the downtime during container migration. In this talk I want to provide details how CRIU...

Zstandard (zstd) is a new lossless compression algorithm with a very attractive compression rate and performance. In production environments it comes with some quantifiable benefits but also with some surprising issues. about this event: https://cfp.all-systems-go.io/ASG2019/talk/DG3YDE/

In this talk, I'll go through my efforts to revamp libcontainer's systemd driver, in particular to support the unified cgroup hierarchy. libcontainer is part of runc (opencontainers/runc in GitHub) and is used by the Docker and containerd ecosystem to spawn containers. This work is trying to bridge the gap between the Docker/containerd/Kubernetes ecosystem and cgroup2 through the unified hierarchy...

The primary focus is to gather feedback from systemd community regarding ongoing and future work to introduce custom cgroup-bpf programs to systemd. The motivation is to give a user a capability to attach their own cgroup-bpf programs to systemd containers. This is a continuation of started at ASG2018 and followed by and . Currently systemd utilizes BPF macro-assembly which is poorly extendable an...