Introduction to OpenShift

Although this book is not about operationalizing the OpenShift platform, a basic introduction to the platform is helpful. In this section, you will learn about the core concepts of Kubernetes and OpenShift.

OpenShift is a complete application platform based on Kubernetes. It is also categorized as Enterprise Kubernetes. Kubernetes provides a solid foundation for container hosting and orchestration. Moreover, Kubernetes provides core functionalities, such as cluster-state management, where a reconcile loop makes sure that the cluster state and the desired state are in sync. Kubernetes also includes a set of APIs to interact with the cluster. Kubernetes is a great platform, but in reality, applications need much more than just the core services provided by Kubernetes.

Assume that you want to deploy a Python application on a Kubernetes cluster. Let’s assess what is required. First, you need to package your application as a container image. Secondly...