A look insight Camel K
Today software often needs to be run in cloud environments. Newly developed software, especially microservices are developed with cloud readiness in mind. But we not only have microservices …
Explore this topic 17 pages
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A journey of a Helm operator to OperatorHub.io and back again
Some time ago, I started a project to create a Helm based operator for an OpenShift application. I used the Operator SDK to create the Helm operator. The Operator SDK documentation …
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How to integrate Kafka with Istio on OpenShift
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 …
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OpenShift and Let's Encrypt
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>. …
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How to add an application to a Red Hat OpenShift Service Mesh
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 …
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Unofficial guideline to get the latest and greatest version of Kiali in OpenShift
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 …
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Debugging Istio
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 …
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Simple example how to use Istio and Keycloak
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 …
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OpenShift 4.3 installation on VMware vSphere with static IPs
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 …
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Installing MongoDB on OpenShift
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. …
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CodeReady Containers on Ubuntu
With the release of OpenShift 4.x Red Hat left no stone unturned (compared to previous 3.x versions). Among many things Minishift became Red Hat CodeReady Containers. Having been a big fan …
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Installing GitLab on OpenShift
We recently had to install a bunch of applications on a customer’s shiny new OpenShift 3.11 cluster. Among others also GitLab. Turned out getting GitLab up and running on OpenShift is …
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oc patch unleashed
Recently, I stumbled on a situation where I wanted to add a couple of values to an OpenShift deployment configuration. Previously I had modified or added a single attribute in a yaml file …
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Comparing Kubernetes and OpenShift
Kubernetes and OpenShift have a lot in common. Actually OpenShift is more or less Kubernetes with some additions. But what exactly is the difference? It’s not so easy to tell as both …
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Advanced OpenShift command line interface
The OpenShift command line interface is a very powerful tool which is quite useful for beginners and advanced user of OpenShift alike. Some of its features are not well documented or not …
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Introduction to TimescaleDB
Our world is full of various processes: tracking of goods delivery, currencies trading, monitoring of server resources, hotel bookings, selling goods or services etc. Since these processes …
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Application monitoring in OpenShift with Prometheus and Grafana
There are a lot of articles that show how to monitor an OpenShift cluster (including the monitoring of Nodes and the underlying hardware) with Prometheus running in the same OpenShift …