Using Kubernetes to build the Hue platform

In this section, we will look at various Kubernetes resources and how they can help us build Hue. First, we'll get to know the versatile kubectl a little better, then we will look at how to run long-running processes in Kubernetes, exposing services internally and externally, using namespaces to limit access, launching ad hoc jobs, and mixing in non-cluster components. Obviously, Hue is a huge project, so we will demonstrate the ideas on a local cluster and not actually build a real Hue Kubernetes cluster. Consider it primarily a thought experiment. If you wish to explore building a real microservice-based distributed system on Kubernetes, check out Hands-On Microservices with Kubernetes.

Using kubectl effectively

kubectl is your Swiss Army knife. It can do pretty much anything around a cluster. Under the hood, kubectl connects to your cluster via the API. It reads your ~/.kube/config file, which contains information necessary...