Open Sourcerers
tl;dr To ensure application consistency for distributed (multi hybrid) cloud environments, streamline your target platform from the bottom up. This helps you dealing with the Moving Target Platform Dilemma (MTPD). As mentioned in the previous article, using the SaaS Kubernetes (K8s) offerings from cloud providers (such as EKS, AKS, GKS) causes your application services to […]
tl;dr You want to gain flexibility by leveraging the K8s offerings from multiple hyperscalers (“cloud providers”) for your application. You gain a bunch of inflexibility by assuring your application behaves equally on all these K8s target platforms. I remember the days as a Java developer when we had to ensure our applications (quite often pre-Spring […]
Abstract of our book about how to develop, build, deploy, and run applications on Kubernetes In March 2021, we both embarked on a thrilling journey by writing a book on “Kubernetes Native Development – Develop, Build, Deploy, and Run Applications on Kubernetes”. The book covers a topic that is especially relevant for everyone that decided […]
Problem Summary At the start of spring 2022, I was asked to assist in untangling a very escalated set of related cases with one of our customers. Their cluster had been experiencing stability issues over a period of several months. Initial analyses by support seemed to suggest resource problems, in particular insufficient memory. There were […]
Summary This article describes the installation of Red Hat Advanced Cluster Security (RHACS) using the Operator. It also covers the integration of Tekton Pipelines for the deployment of two different containers and the configuration of a Slack notification. A special feature here is that the installation and configuration is largely automated by scripts and can […]
For english content please see the blog post by Chris Jenkins at https://www.redhat.com/en/blog/openshift-security-hardening-healthcare-industry which essentially presents the same information as this post. Because of the importance of the topic and the ask from our german-language customers we wanted to also present this information in german. “Security is not a product, it itself is a process” […]
When people ask me what I do for a living I give up trying to explain what it is and just say ‘software’, at which point their eyes glaze over and the conversation shifts to weather, which politician has done what insanely hypocritical thing and whose round it is. And the reason I find it […]
Almost! We run MicroShift on a Raspberry Pi4. MicroShift is an experimental flavour of OpenShift/Kubernetes optimized for the device edge. It targets the niche between minimal, standalone Linux edge devices and full-fledged OpenShift/Kubernetes edge clusters. You can find more details about MicroShift at https://next.redhat.com/project/microshift/ MicroShift is a research project being worked on upstream in the […]
Kelsey Hightower stated already in 2017, that Kubernetes is not a Platform by itself, but rather a better way to start to build a platform. But what does that really mean? From my point of view, this means that Kubernetes is a platform that provides a core abstraction- and Service layer for cloud-native applications to […]
Our experiences preparing for a demo at Ansiblefest 2021 Speakers: Karoly “Charlie” Vegh and Robert “Bob” BaumgartnerSupported by: Chris Jung, Phil Griffith, Eric Lavarde, Elle Lathram Introduction and Purpose AnsibleFest is always pretty cool, all new announcements, live demos, roundtable discussions, etc. Bob, being the Kubernetes/Container Architect and my humble self being more a Linux […]