© Copyright IBM Corp. 2020. All rights reserved. 59
Chapter 4. Red Hat OpenShift components 
and architecture
OpenShift is a set of modular components and services that are based on Kubernetes cluster 
and Docker, which runs on top of Red Hat Linux. OpenShift provides access to container 
images with a focus on easy composition of applications by developers.
This chapter describes the OpenShift cluster platform components and architecture and 
includes the following topics:
/SM5900004.1, “OpenShift cluster components” on page 60
/SM5900004.2, “OpenShift container platform networking” on page 63
/SM5900004.3, “OpenShift persistent storage” on page 68
/SM5900004.4, “OpenShift registry” on page 69
/SM5900004.5, “Managing OpenShift resources” on page 69
4