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 14 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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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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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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Security guide for Amazon Kubernetes Cluster (AWS EKS)
One of the most challenging questions in cloud environments is about how secure is my application when its deployed in the public cloud ? Its no secret that security aspects are much more …
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Hello Kubernetes on AWS! A simple way to test-drive EKS
Under the name of “Managed Kubernetes for AWS”, or short EKS, Amazon offers its own dedicated solution for running Kubernetes upons its cloud platform. The way this is provided …
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Avoid Kubelet OOM errors on Amazon Kubernetes Cluster (AWS EKS)
AWS offers a great service called “Amazon Elastic Container Service for Kubernetes” (AWS EKS). The setup guide can be found here: Offical AWS EKS getting started guide If you …
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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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Setting up the Prometheus Operator with Ansible on a Kubeadm Kubernetes Cluster
Prometheus is a popular monitoring tool based on time series data. One of the strengths of Prometheus is its deep integration with Kubernetes. Kubernetes components provide Prometheus …
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Backup and Restore a Kubernetes Master with Kubeadm
Kubeadm is a basic toolkit that helps you bootstrap a simple Kubernetes cluster. It is intended as a basis for higher-level deployment tools, like Ansible playbooks. A typical Kubernetes …
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CIFS Flexvolume Plugin for Kubernetes
This blog post shows how to use CIFS (a.k.a. SMB, Samba, Windows Share) network filesystems as Kubernetes volumes. Docker containers running in Kubernetes have an ephemeral file system: …