Insights
RabbitMQ
Tuesday, February 09, 2021 in Insights
The first version of RabbitMQ has been released in 2007. Back in these days, the goal was to provide a complete open source implementation of Advanced Message Queuing Protocol (AMQP), aiming at modern messaging needs such as high availability, high …
How to integrate Kafka with Istio on OpenShift
Tuesday, February 02, 2021 in Insights
Last summer I watched the Red Hat master course about Kafka from Sébastien Blanc. The Kafka setup in Kubernetes presented in the course looked pretty easy. The Kafka client implementation for Java seemed to be easy as well. Furthermore, I wanted to …
Integration testing with Testcontainers
Tuesday, October 27, 2020 in Insights
Automatic integration tests as part of the development life cycle can save a lot of time and money. Not only when dealing with other service APIs or offering some, also if the application uses a database or other infrastructure services. We at …
OpenShift and Let's Encrypt
Wednesday, September 16, 2020 in Insights
So you have this nifty web application deployed on your OpenShift cluster and you want to make it accessible by the whole world with HTTPS under the name coolapp.<mydomain>. Unfortunately you face several issues: Exposing the service to your …
How to add an application to a Red Hat OpenShift Service Mesh
Friday, August 07, 2020 in Insights
During a discussion with a customer, we talked about which steps are necessary to add an application to a services mesh. Which should be no big deal. Unfortunately, there is not a simple guideline how to do that for the Red Hat OpenShift Service …
Unofficial guideline to get the latest and greatest version of Kiali in OpenShift
Monday, May 18, 2020 in Insights
During this year’s Red Hat Summit I had the chance to get a glimpse of the latest version of Kiali. This version had some nice features, like the traffic flow of the application graph during a time period (Graph replay). It also contains …
Simple example how to use Istio and Keycloak
Thursday, May 07, 2020 in Insights
Some time ago, I did a webinar about the RedHat Service Mesh, which is based on Istio. For this webinar, I prepared a demo application. Among other things, I wanted to show how to do the authentication with JWT token in general and, more specific, …
Debugging Istio
Thursday, May 07, 2020 in Insights
In the article, I’m going to describe what we can do, if we configured our application to use Istio, but it is not working like intended. Originally, I wanted to give a detailed description what problems I encountered during the creation of my …
OpenShift 4.3 installation on VMware vSphere with static IPs
Friday, January 31, 2020 in Insights
In this article, I will show you how to install Red Hat OpenShift Container Platform 4.3 (OCP) on VMware vSphere with static IPs addresses using the openshift installer in UPI mode and terraform. In contrast to the official OpenShift 4.3 install …
Installing MongoDB on OpenShift
Tuesday, January 14, 2020 in Insights
So here is another one of our series Installing Blahblahblah on OpenShift. This time it is about getting MongoDB to run on OpenShift - the way recommended and promoted by the MongoDB guys. The whole setup is still in beta stage as indicated on these …