2019-02: Containers without Docker

The first meetup of 2019 was all about Containers without Docker. Anders Björklund took us through a tour of container history (including Docker), podman, kubernetes, minikubes and more.

I would like to extend a thank you to our hosts – Scionova – and everyone who attended. It was great to have so many people joining!

foss-gbg 2019-02: Containers without Docker

It is time for the first foss-gbg of 2019 and this time we will listen to Anders Björklund speaking about Containers without Docker.

In this presentation Anders will talk about the Podman and Kubernetes projects, and show how to run Linux containers – without using a Docker daemon. It will include a brief introduction and a historic background of container technology, as well as some demonstrations on how you can run it locally.

Linux containers are technologies that allow you to package and isolate applications with their entire runtime environment – all they need to run. Containers share the operating system (OS) kernel and therefore do not require an OS per application, requiring less resources than virtual machines.

Kubernetes (k8s) is an open-source container orchestration system for automating deployment, scaling, and management of containerized applications. It groups containers that make up an application into logical units for easy management and discovery, and was originally released by Google in 2014.

And some words about the speaker:

Anders Björklund is a system developer working with continuous integration and continuous delivery using distributed build systems based on Linux. He has been working with Linux and containers for a long time, and is part of the Docker Machine community and a maintainer of Kubernetes Minikube.

Our host for the evening will be Scionova who provides some lighter food and beverages.

Get your tickets at meetup.

Tickets for foss-north 2019

The ticket sales for foss-north 2019 has opened. Get yours at http://foss-north.se/2019/tickets.html.

This year the conference consists of three parts: community day, conference days and training day.

The community day is free of charge and consists of a number of workshops and hackathons throughout Gothenburg. The conference, two days, two tracks, is the core of the event and is run as previous years. The training day consists of full day trainings and come with an additional cost. If you want to attend you need to get the ticket for the training session you want.

Speak at foss-north 2019

Would you like to speak at foss-north 2019? This is an excellent opportunity to come join a great conference on the Swedish west coast and meet the free and open source community!

The call for paper is open until late February – but it always helps if you submit your talks early. The submissions are made here. We gather a mix of different speakers – experienced speakers and first timers, technically detailed and process oriented, new contents and really old stuff. As long as it is interesting and fun, you are more than welcome. You can check-out videos and slides for past events for inspiration.

There is also an opportunity for projects who wants to do something fun to join in. Be it a development sprint, an install fest, a workshop or just a general meetup – join in and be a part of the foss-north community day. Reach out to me (e8johan, gmail) and I’ll tell you more.

2018-11: Mender and Reverse Engineering

Last week the last meetup of 2018 took place at ICTech. The event had two speakers. Mirza Krak spoke about Mender and software updates and Philip Karlsson talked about reverse engineering using x64dbg.

You can find the video recordings of both sessions below:

Big thanks to everyone who joined this meetup and who took part in foss-gbg during 2018. See you all again in 2019!

foss-gbg 2018-11: Mender and hacking

It is time for the November foss-gbg. We will meet on the 14th and listen to Mirza Krak talk about Mender, followed by a hacking workshop by Philip Karlsson, so make sure to bring a laptop!

Robust software updates on Embedded Linux devices is complex, and doing robust software updates over-the-air adds to the complexity. The hardships come of course from the embedded environment which differ in many ways compared to desktop or server Linux installations, where you must handle poor mobile network connectivity, sudden power-loss and never leave a device in a unusable state (brick) when doing the update OTA.

There are a lot of examples that have gotten attention in media, where unstable software update solutions have caused real-life problems which could have been mitigated by a robust software solution that is able to handle the corner cases that exist in the embedded environment.

In this talk Mirza Krak will present Mender, Apache 2.0 licensed end-to-end software update solution. This is a deep-dive session that will cover:

– project ecosystem and community
– technical insights
– security insights

And will of course include a mandatory demo.

Mirza Krak is currently part of the Mender.io open source project to deploy OTA software updates to embedded Linux devices. He is an embedded Linux solution specialist with seven years of experience in the field with expertise in within Board Support Package development which ranges from hardware bring-up, boot-loaders, Linux kernel and build systems (Yocto/OE-core).

Mirza was an Mender community member for a couple of years which led to an employment in 2018 to continue to work on the Mender project full-time.

Mirza has spoken at various conferences including Embedded Linux Conference and foss-north.

The hacking workshop starts with the MiGiC Guitar to MIDI Converter and focuses on how the free software x64dbg can be used to understand how the copy protection to MiGiC was circumvented.Shortly after the commercial release of MiGiC 1.0, the product was found cracked at one of the more known torrent pages. Since development hours were spent trying to protect the product he became curious in how the attackers broke the protection. In order to investigate this the open source debugger / disassembler x96 dbg was acquired to perform an analysis of both the cracked and uncracked binary.

In the session Philip will show you parts of the analysis as well as presenting three so called ”crackmes” that you will get the opportunity to find weaknesses in using the x64dbg tool. Therefore, its a good idea to bring a PC so you can use the tool yourself.

The venue host for the evening are ictech. They will provide lighter snacks and beverages, as well as the location.

Image result for ictech logo sverige

As usual you can reserve your seat at meetup.

foss-gbg 2018-10: Workshop om oppenkod.se

Det är dags för en workshop om oppenkod.se. Du kan se presentationen som startade det hela här:

Vi träffas den 16/10 och delar lite mat och skapar innehåll för websidan.

OBS! Om du deltar i detta möte så förväntas du bidra i arbetet!

Värd för träffen är Kuro Studio som står för lokal och enklare förtäring.

Reservera din plats på meetup.

Lyssna till Daniel Stenberg

Evolve Technology kör sin pre-standup meetup nästa vecka och Daniel Stenberg – mannen bakom curl – kommer till stan.

Daniel Stenberg, författaren av curl kommer till Göteborg för att berätta lite om hans resa med att få curl att växa från ingenting för att på 20 år finnas i varje uppkopplad apparat på jorden. Välkommen till Scandic Rubinen i Göteborg på en frukostföreläsning den 10e oktober klockan 08:30

Biljetter och detaljer hittar ni på meetupen.

foss-gbg 2018-09: C on bare metal ARM

Septemberträffen ägnades åt att köra kod direkt på en ARM-processor. D.v.s. ingen bootloader, inget operativsystem, ingenting. Jacob Mossberg talade om hur detta går till under kvällens huvudnummer. Slides och bakgrundsmaterial hittar du här.

Under kvällen spelades även en video in. Tyvärr avbröts inspelningen något tidigt, men större delen av talket finns med (och resten går att läsa om på Jacobs blog).

Efter Jacob så var det dags för lightning talks. Vi talade snabbt om oppenkod.se innan Anders Björklund visade sitt projekt för att kombinera proot och Raspbian.

Slutligen så vill vi passa på att tacka CyberCom som stog för lokal och förtäring!

Lite bilder från kvällen: