text: In addition to Docker and Kubernetes, OpenShift container platform adds source code 
  management for developers, application management, user and group management, and 
  networking infrastructure to give user access to the applications that are running in the 
  cluster. 
  
  **4.1.7 Master and nodes**
  
  An OpenShift cluster is a set of node servers that run containers and are centrally managed 
  by a set of master servers. A master server can act as a node server, but for large OpenShift 
  deployments, the recommendation is that those roles are segregated for increased stability. 
  
  For more information about the recommended architecture for IBM Power Systems, see 
  Chapter 5, “Red Hat OpenShift installation planning and considerations” on page 71. 