What Go Skills Do I Need for a Kubernetes Job?

Kubernetes has API clients written in Go, making it valuable to learn if you want to create operators. However, if you're just using Kubernetes to run applications and aren't developing in Go, you might not need to focus on it as much.

I learned Kubernetes controller implementation through the Kubebuilder cookbook, specifically a cronjob controller example. It's a great resource if you want to understand how to build controllers effectively. You should definitely check it out!

To dive into Kubernetes operators, you'll definitely need to get a solid grasp on Go and the operator framework. Familiarity with the Kubernetes API server, which is also in Go, will come in handy. I'd recommend building a sample operator yourself—maybe a simpler version of one you find interesting—before you start applying for jobs that require this knowledge.

Getting involved in open-source projects related to Kubernetes can really accelerate your learning of Go. Try to contribute to projects like projectcapsule, shipwright, or k0s. They are friendly and great for building your experience. It's easier to get involved with sandbox projects than fully graduated ones.

If you're aiming for operator work, focus on learning Go modules, structs, interfaces, and the client-go library. It's also important to understand Custom Resource Definitions (CRDs) and how reconcilers work in the context of Kubernetes.