Rocky 9 install R10K service
How to install Puppet R10k service on Rocky 9 If you happen to manage your server infrastructure with Puppet, you will sooner or later stumble into R10k, which is rather …
Kubernetes: How to resolve external DNS within a pod
Sometimes we need to be able to resolve external ip addresses from within a pod. Let’s say you run something like WordPress, Nextcloud etc. within Kubernetes, and you want to …
Becoming a Puppet Certified Professional
Why getting certified Did you ever wonder about how to become a Puppet Certified Professional? Most IT professionals will have to get certified on one area or another. Mostly we …
Renewing Kubernetes cluster certificates via kubeadm can break your kubelet.conf.
Are you running a Kubernetes cluster to optimize your workload? Excellent idea. Running apps in containers rather than VMs or bare metal very often is quite helpful for your budget …
Managing PXE installations with Cobbler
Introduction Modern IT environments do require a high level of automation depending on complexity and business requirements. Manual installations and configurations take a long time, are prone to human failure …
Puppet Infrastructure Options
Running your Puppet infrastructure via Hiera or Foreman as ENC. Also learn about Configuration management.
Infrastructure as Code
What are main differences between traditional IT management and IaC?
Docker Swarm Review
Docker Swarm Overview
Docker Review
Like announced at the beginning of the new year, I am writing a series about managing Kubernetes with DevOPs methods. Having started with a little warm-up about Kubernetes and a …
Kubernetes – VM vs Bare Metal
Kubernetes in a Virtial Machine or on Bare Metal?