Kubernetes operators are incredibly powerful to deploy applications and automate day 2 operations. This articles gives a quick overview of resources how to get started. Recently I’ve started to le...

Typical business applications require backend and frontend functionality as well as databases and authentication mechanisms. This article describes a pattern how to do authentication in these types...

Applications and microservices should be developed to allow deployments to different environments. This article describes how to apply this principle to Quarkus applications. The third factor of T...

Accessing PostgreSQL from applications is easy. Doing it the right way from containers using secure TLS connections is a little harder. Over the last months I’ve worked with many companies who wan...

Good SaaS solutions provide efficient mechanisms how to deploy and operate the same software for multiple clients, but don’t necessarily share the same compute resources because of security reasons...

Development and automated deployment of SaaS for multiple tenants, using Red Hat OpenShift/Kubernetes and DevSecOps Over the last months I’ve worked with many companies who want to build SaaS (Sof...

This article demonstrates a typical scenario how to deploy a microservice on OpenShift using the GitOps capabilities of ArgoCD. In a previous article I described how to install and configure ArgoC...

This article describes how to deploy and configure the GitOps tool ArgoCD on OpenShift. GitOps Operator In order to install GitOps in OpenShift, there is an operator ‘Red Hat OpenShift GitOps’. T...

This article explains how to access GitHub repositories from Tekton tasks on behalf of specific users via ssh. In my application modernization example I use Tekton pipelines to deploy the moderniz...

In this blog I explain briefly how to ‘debug’ Tekton tasks. In my previous article Sample Tekton Pipelines for Microservices I described how to deploy microservices to OpenShift using Tekton. Runn...