Chapter 10. Networking

This chapter covers

  • Designing cluster networks
  • Understanding network traffic flow in OpenShift
  • Configuring Open vSwitch
  • Configuring OpenShift network plugins
  • Using DNS in OpenShift

The importance of the networking configuration in an OpenShift cluster can’t be overstated; it’s the fabric that binds your cluster together. With that perspective, OpenShift does a lot of work to make sure its networking configuration is stable, performs well, and is highly configurable. Those principles are what we’ll cover in this chapter. Let’s start with an overview of how the network in OpenShift is designed.

10.1. OpenShift network design

Up to this point, all your OpenShift applications have run on a single application node. It’s ...

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