About Ronny

I've started as an OpenNMS community member in 2004 and I'm working as a full-time contributor at the OpenNMS Group since 2015.

OpenNMS joins Hacktoberfest 2021

There will be just one Hacktoberfest 2021 and it is coming soon! The OpenNMS community will participate and we are looking for contributors who want to join us in October. Hacktoberfest is an annual, month-long celebration of open source software driven by Digital Ocean. During this event everyone can support open source by contributing changes, [...]

By |2021-09-23T19:16:54+00:00September 23rd, 2021|

Come Discourse with OpenNMS!

The OpenNMS project was registered on 30th March 2000 on SourceForge and in these early days everyone talked about CVS or Subversion. Benjamin Reed migrated the project very early to git and this was a big change for our community, but it paid off so well. It made it also pretty easy to move our project [...]

By |2019-04-04T23:01:26+00:00December 13th, 2018|

Send notifications with Signal

In some cases it is nice to have notifications from OpenNMS in a separate channel on a smartphone and you don't want to pay for SMS. Here is a tutorial where I use Signal using the signal-cli. This Howto will describe how to download the latest signal-cli tool, link it to your existing Signal account and how to configure [...]

By |2019-04-04T23:01:26+00:00November 2nd, 2018|

How to build Docker images from branches

In OpenNMS we use Atlassian Bamboo which runs all our tests and build also the packages which can be installed on different operating systems. It plays an important role as quality gate for changes going into the code base. Our Bamboo is public available and can be seen by everyone. There are two type of branches, one following a pattern [...]

By |2019-04-04T23:01:27+00:00July 8th, 2018|

iNOG and Ripe NCC Hackathon

Our UK OpenNMS ambassador, Craig Gallen, gave us a hint about a meeting from the Irish Network Operators Group (iNOG) followed by a 2 day Network Operators Tools Hackathon co-hosted by Ripe NCC. I've attended a few NOG meetings already and like the tech-driven and very friendly atmosphere. Luckily, The OpenNMS Group sponsored the trip and so I was able to [...]

By |2019-04-04T23:01:27+00:00July 3rd, 2018|

Running an OpenNMS Minion with Docker

Running a Minion with Docker is relatively easy, you just need to have Docker installed. It makes also updating the Minion very easy cause you can follow the tags latest for latest stable version or trying a bleeding snapshot. You can configure everything through environment variables. At a bare minimum you need something like this: docker run --rm -d \ [...]

By |2019-04-04T23:01:27+00:00May 20th, 2018|

Running OpenNMS Horizon in Docker

Running applications in containers provides many benefits, and it's not just hype. Higher velocity to maintain changes while keeping a service available. Scaling your software by just spinning up more instances to handle load. Container images allow you to manage your application dependencies and link them all to a portable and standardised runnable container image. The [...]

By |2019-04-04T23:01:27+00:00January 9th, 2018|

PRIS Release and CI/CD Workflow

The current release workflow for PRIS and the Docker Container Images was driven by manual tasks. That means you have to push a "Release Button" which sets version numbers and triggers Docker Image builds. I have switched to a continuous delivery workflow. Every commit is a release and there is no "Release Button" anymore. Unique version [...]

By |2019-04-04T23:01:27+00:00December 24th, 2017|

Easterhack 2017 – Post Mortem

Hello World, We had an Easterhack some days ago, as some of you remember. Marcel Fuhrmann and Markus von Rüden organised the event and Marcel provided a place in his home for the OpenNMS guys to hack, eat, drink, talk and have some fun. Here are a few things what we did (aside from playing Guitar [...]

By |2019-04-04T23:01:45+00:00May 11th, 2017|

Process Monitoring with SNMP

Monitoring processes that don't provide network services is a default use case in network monitoring. Because they aren't providing network services, black box testing won't work- you need an agent on your system providing an inside view of your operating system. The Net-SNMP agent is easy to install and configure on Linux or Unix. It's compatible [...]

By |2019-04-04T23:01:45+00:00May 9th, 2017|
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