Posts

From time to time people come to me and say: “I really would love Jolokia if only it would be RESTful”. This post tells you why.

Now that some weeks has been passed we all had time to absorb the revised Java EE 8 proposal presented at Java One. As you know, some JSRs remained, some things were added and some stuff was dropped. Java EE Management API 2.0, supposed to be a modern successor of JSR 77, is one of the three JSRs to be dropped. What does this mean for the future of Java EE management and monitoring ?

Let’s build a Raspberry Pi Cluster running Docker and Kubernetes. There has been already a handful of good recipes, however this howto is a bit different and provides some unique features.

rhuss/docker-maven-plugin is dead, long live fabric8io/docker-maven-plugin !

Dealing with multiple Docker registries is hard, mostly because the meta information where a image is located is part of a Docker image’s name, which is typically used as an identifier, too. Let’s see how the rhuss/docker-maven-plugin deals with this peculiarity.

This screencast gives a live demo of the forthcoming JMX notification support in Jolokia 2.0.

I hope you all had a good start into 2016 and have charged all your batteries during the time of stillness. Jolokia had a good start, too. During the holiday season I took the opportunity to continue to work on version 2.0 which now takes on form. If you have followed the history of Jolokia you know that work on 2.0 started early 2013 but advanced quite slowly for multiple reasons. Now its time to go out on a limb with announcing Jolokia 2.0 for 2016. A bit of pressure sometimes really helps ;-)

When I had to create multiple Docker base images which only differ slightly for some minor variations I couldn’t avoid to feel quite dirty because of all the copying & pasting of Dockerfile fragments. We all know how this smells, but unfortunately Docker has only an answer for inheritance but not for composition of Docker images. Luckily there is now fish-pepper, a multi-dimensional docker build generator, which steps into the breach.

As you might know, Jmx4Perl is the mother of Jolokia. But what might be not so known is, that Jmx4Perl provides a set of nice CLI tools for accessing Jolokia agents. However, installing Jmx4Perl manually is cumbersome because of its many Perl and also native dependencies. However, if you are a Docker user there is now a super easy way to benefit from this gems.

Ok, you know Docker. And since you are a Java developer you want to know how you can use this in your daily development workflow. You probably also heard about the docker-maven-plugin which seamlessly creates Docker images, starts and stops Docker containers and more all with a concise configuration syntax. And now there is this new goal docker:watch.