Helm

So far in this series, we’ve created some very simple Kubernetes applications. If you built something more complicated, with dozens of manifests, it would be a faff to share it with other people. Those other people might also struggle to understand and tweak your configuration. With a Helm Chart, you can define, install, and upgrade even the most complex Kubernetes application. For instance, I worked for a CI/CD company which offered a self-hosted Kubernetes-based version of its product. Rather than having to create lots of different Kubernetes resources, customers instead received a Helm Chart with everything already mapped out - all the Deployments, Secrets, Users, and ConfigMaps. They then configured some of the values and installed the chart on their own Kubernetes cluster. ...

One of the many advantages of Helm is that it gives you a one-command installation method for many popular apps. It would take a while to create all the necessary Pods, Services, and ConfigMaps manually. In this tutorial, I’ll guide you through a two-step process for installing WordPress with Helm. Although this isn’t necessarily something you’d want to do in the real world, it’s good for understanding the basics. I was very excited when I first got this working. ...