I haven’t written much since the summer 2021 and I thought I start the New Year with a little update regarding OpenShift/OKD 4.9 Single Node cluster (SNO) installation. The single node type is not new because I have been using these All-in-One or Single Node clusters since OpenShift 3.x and…

I have been using Kubernetes in Docker (KinD) for over a year and it’s ideal when you require an ephemeral Kubernetes cluster for local development or testing. My focus with the bootstrap script was to create a Kubernetes cluster where I can easily customise the configuration, choose the required CNI…

In my first article about the Kubernetes Cluster API and provisioning of AWS workload clusters I mentioned briefly configuring Machine Health Check for the data-place/worker nodes. The Cluster API also supports Machine Health Check for control-plane/master nodes and can automatically remediate any node issues by replacing and provision new instances…

Over a year has gone by since my first article about Getting started with OpenShift Hive and my talk at the RedHat OpenShift Gathering when the first stable OpenShift Hive v1 version got released. In between a lot has happened and OpenShift Hive v1.1.1 was released a few weeks ago…

The past few months I have been following the progress of the Kubernetes Cluster API which is part of the Kubernetes SIG (special interest group) Cluster-Lifecycle because they made good progress and wanted to try out the AWS provider version to deploy Kubeadm clusters. …

The concept of a single-node or All-in-One OpenShift / Kubernetes cluster isn’t something new, years ago when I was working with OpenShift 3 and before that with native Kubernetes, we were using single-node clusters as ephemeral development environment, integrations testing for pull-request or platform releases. It was only annoying because…

Using GitOps way of working and tools like the GitOps toolkit (Flux CD v2) is great for applying configuration to your Kubernetes clusters but what about secrets and how can you store them securely in your repository? The perfect tool for this is Mozilla’s SOPS which uses a cloud based…

In the past few weeks I started to learn Go and beginners like me can make quick progress once you understand the structure and some basics about the programming language. …

I have been using the Flux CD operator for a few month to manage Kubernetes clusters in dev and prod and it is a great tool. When I initially reviewed Flux the first time back then, I liked it because of its simplicity but it was missing some important features…