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Docker and parallel builds

2016-07-09 1 min read Technology CICD Ronny Trommer

I was listening to an interesting talk from Laura Frank from Codeship. In case you build or maintain a Continuous {Integration, Delivery} environment this definitely worth watching and they describe how they used LXC and now Docker to build their CI/CD infrastructure.

TL;DR

Interesting to me, the description in the YAML file reminded me quickly on a course I needed to pass during my study in parallel computing. The exam had one section where you had to describe parallel and sequential processes with some high level constructs. You had to describe a given time sequence graph for processes on n processors with the primitives BEGIN/END for sequential parts and COBEGIN/COEND for parallel processes.

Open Source Experience

2014-11-22 3 min read Technology Open-Source Ronny Trommer
I spend a lot of time in the OpenNMS project and I love to work in free software and the workflows around it. We moved with our project from SourceForge to GitHub a few years ago and I think it was the right decision. There are now some established workflows in this ecosystem and they tear down borders between different open source projects and here is an example of it. Continue reading

OpenNMS and Documentation

2014-07-15 3 min read OpenNMS Technology Ronny Trommer
To help the OpenNMS project I spent a year together with Alexander Finger and Klaus Thielking-Riechert writing an OpenNMS book. We started with a development version of for 1.8 and tried to find a mixture between consistent slow changing and new concepts in 1.8. It was kind a complicated thing and from my point of view not perfectly done. Nevertheless I’ve thought about something like: “It’s about time writing a second edition covering the topics in coming 1. Continue reading

DevOps Guy

2014-06-17 2 min read Technology Ronny Trommer
I started in 1998 in IT-Services and I did all the funny stuff – was involved building new networks for companies, migrated software from commercial vendors from version A to B to C to D and I have wasted too much lifetime on broken RAID 5s, backups and restores. If you want to learn how to operate a computer network – this is a good place. You will be always called for the complicated problems nobody can solve with a simple Google search. Continue reading
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