Building a Yocto Pipeline with KAS, GitHub Actions and AWS
- Anna-Lena Marx
- Embedded , Conferences
- November 29, 2023
Using KAS makes handling Yocto Projects easy. By shipping its own container with all needed dependencies, building sophisticated CI pipelines becomes pretty easy - in theory, or when using Gitlab.
But using GitHub as a code hosting platform with self-managed Action runners on AWS comes with a set of unexpected challenges.
Anna-Lena will talk about her quest through GitHub Actions, the Cloud and how to tame them.
The talk aims to point the audience to the obstacles when building CI pipelines for the Yocto Project with KAS, GitHub Actions, and custom action runners on AWS and strategies to handle them.
Presented at
- Yocto Project Summit 2023.11, virtual, 2023
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LoRaWAN in theory and practice: A trip through Munich
- Anna-Lena Marx
- February 24, 2024
- Embedded , Conferences
LoRaWAN (Long Range Wide Area Network) is becoming increasingly popular, thanks in part to public networks such as The Things Network, which allow users to dispense with their own gateways. LoRaWAN also promises potential in terms of range and energy efficiency. But how does the standard perform in practice?
The aim of the presentation is to shed light on the technical background and demonstrate how practicable LoRa is in the field using real tests. It will be shown how the standard behaves in urban and rural areas, how differences in height of the gateway and different antennas influence the transmission quality.
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Advanced System Profiling, Tracing and Trace Analysis with Perfetto in Android and Yocto
- Anna-Lena Marx
- October 8, 2024
- Embedded , Conferences
Together with my colleague Stefan Lengfeld.
Tracing is a capable mechanism for deep system analysis and profiling with a minimal overhead. By recording defined system events, in Linux but also Android, tracing can be used to analyze concurrency or latency issues, for example. Android’s systrace tool made it easy to analyze and correlate traces and events due to a graphical UI, in order to help developers identify performance bottlenecks. The successor to this advanced and convenient tool is called Perfetto. It’s available for pure Linux too, and part of Yocto (meta-oe) since Langdale now. In the talk, we’ll have a look into
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How a modern Yocto setup could look like
- Anna-Lena Marx
- November 20, 2022
- Embedded , Conferences
In 2015, we built a sophisticated meeting room information system based on Android Things as a student project. As Android Things was deprecated in 2021, we started to use our Yocto Project experience to develop a maintainable, future proof embedded system.
When setting up a new project from scratch, we focused on proper solutions for
- a maintainable, well supported and patchable build environment for the embedded systems
- version control, reproducible builds and continuous integration
- license management
- a secure and stable update mechanism on image base and
- managing releases The talk aims to show how we build a system that matches our requirements using the Yocto Project, KAS, Gitlab CI, and Mender.io. Besides, we will have a short outlook to the application built in Flutter.
Presented at
- Yocto Project Summit 2022.11, virtual, 2022
- buildingIoT, Munich, 2023
Download original slides (Yocto Project Summit) Download updated slides (buildingIoT)
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