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Stephen Nimmo

Development, DevOps and Delivery

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Category: Configuration

Setting Up Network Policies on a RHEL 9 VM running in OpenShift Virtualization

February 26, 2025 stephennimmo Configuration

OpenShift Virtualization is a powerful capability within Red Hat OpenShift that enables organizations to run and manage virtual machines (VMs)[…]

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Bash to Bootstrap OpenShift Gitops

January 20, 2025 stephennimmo Configuration

So you got a fresh OpenShift install? First thing to do is to install OpenShift Gitops. Here’s a script to[…]

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Backing Up and Restoring a single VM using OpenShift Virtualization and OADP

October 9, 2024 stephennimmo Configuration

Prerequisites: The OpenShift API for Data Protection (OADP) is a powerful extension of the OpenShift ecosystem designed to enhance data[…]

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Deleting old pods using CronJob on OpenShift

September 18, 2024 stephennimmo Configuration

Whenever I do a cluster install and after running a cluster for a while, the “Completed” pod references start to[…]

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Running the Red Hat build of Keycloak on OpenShift

September 10, 2024 stephennimmo Configuration

In this blog post, we are going to bring a few different technologies together to support an instance of the[…]

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Generating Let’s Encrypt certificates with Red Hat OpenShift cert-manager operator using the Cloudflare DNS solver

May 15, 2024 stephennimmo Configuration, System Design

Let’s Encrypt is a nonprofit certificate authority that provides free SSL/TLS certificates, which are essential for enabling secure HTTPS connections[…]

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In-Depth Hashicorp Vault setup on OpenShift using OpenShift GitOps

May 5, 2024 stephennimmo Configuration

I’m running a couple of clusters in my lab environment. One of them is a “hub” cluster which is handling[…]

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rpm-ostree kernel parameters

January 30, 2024 stephennimmo Configuration

I’ve been messing around with one of my boxes because of a faulty onboard ethernet adapter. I was trying to[…]

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Certificates from Let’s Encrypt using certbot on RHEL

December 8, 2023 stephennimmo Coding, Configuration

Requirements: Certificates are a pain. But they are a very necessary and vital piece to your security. Here’s how to[…]

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Concise Keycloak Realm for Testing

November 18, 2023 stephennimmo Coding, Configuration

I’ve recently been working on some Quarkus and Angular projects requiring an OIDC provider and I have been using Keycloak.[…]

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Recent Posts

  • GitOps at Scale
  • Compiling and installing a Linux kernel module in OpenShift – The AMD Solarflare™ Onload™ Edition
  • Dynamic URL for Host using OpenShift routes
  • Connecting OpenShift Virtualization to Underlay Networks with ClusterUserDefinedNetwork
  • Two Ways of creating a Red Hat Enterprise Linux virtual machine with a static ip address in OpenShift Virtualization

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