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00 - Cloud-Native App Dev 00 - Hybrid Cloud Infrastructure Kubernetes Platform

The Moving Target Platform Dilemma

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 […]

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00 - Cloud-Native App Dev

Kubernetes Native Development

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 […]

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00 - Cloud-Native App Dev 00 - Hybrid Cloud Infrastructure 00 - IT Automation & Management 00 - Next-Gen Architecture, Culture & Processes

Why test automation won’t work without infrastructure automation

The article shows the different benefits of an automated testing approach and why the full benefit can only unleashed by using infrastructure automation.

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00 - Cloud-Native App Dev 00 - Hybrid Cloud Infrastructure

The importance of getting resource requests and limits right.

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 […]

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00 - Cloud-Native App Dev 00 - Hybrid Cloud Infrastructure 00 - Industry 00 - IT Automation & Management 00 - Next-Gen Architecture, Culture & Processes

Red Hat Summit 2022: Editor’s Picks

Red Hat Summit 2022 is a wrap! It was packed with interesting sessions covering a wide range of topics. Most sessions are available after a quick registration for on-demand viewing until December 2022 here:  https://summit.redhat.com There are 101 on-demand sessions available covering high level topics down to the dirty technical details of using Red Hat’s […]

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00 - Cloud-Native App Dev

Using OpenTracing and Jaeger with Your Own Services/Application

In this blog I will guide you on How to use OpenTracing with a Quarkus application. How to display your OpenTracing information on Jaeger UI. In this blog I will use distributed tracing to instrument my services to gather insights into my service architecture. I am using distributed tracing for monitoring, network profiling, and troubleshooting […]

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00 - Cloud-Native App Dev

Using OpenTelemetry and Jaeger with Your Own Services/Application

In this blog I will guide you on How to use OpenTelemetry with a Quarkus application. How to display your OpenTeleemtry information on Jaeger UI. In this blog I will use distributed tracing to instrument my services to gather insights into my service architecture. I am using distributed tracing for monitoring, network profiling, and troubleshooting […]

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00 - Cloud-Native App Dev 00 - Hybrid Cloud Infrastructure

Red Hat Advanced Cluster Security with OpenShift Pipelines and Slack Integration

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 […]

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00 - Cloud-Native App Dev

Monitor and scale apps using your own metrics

In this blog I will guide you on How to enable an application performance monitoring (APM). How to scale a user application based on application metrics with a Horizontal Pod Autoscaler (HPA). How to create an alert based on application metrics and send this alert to an external system. For the monitoring, I will use […]

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00 - Cloud-Native App Dev 00 - Hybrid Cloud Infrastructure Auto-Scaling blog cloud computing Cloud Native Design

Getting started with OpenShift ServiceMesh Federation

Introduction When you are serious about running a microservice architecture at scale, you will definitely run into some challenges at some point.  Beside all the benefits microservices deliver, they’ll also add a layer of complexity and have all the associated complexities of a distributed system.  And as the number of services scales, it becomes increasingly […]

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