Summary

In this chapter, you have learned about the key building blocks for providing High Availability (HA) and Fault Tolerance (FT) for applications running in Kubernetes clusters. First, we have explained why HA and FT are important. Next, you have learned more details about providing component replication and failover using ReplicationController and ReplicaSet, which are used in Kubernetes in order to provide multiple copies (replicas) of identical Pods. We have demonstrated the differences between ReplicationController and ReplicaSet and eventually explained why using ReplicaSet is currently the recommended way to provide multiple replicas of Pods.

The next chapters in this part of the book will give you an overview of how to use Kubernetes to orchestrate your container applications and workloads. You will familiarize yourself with concepts of the most important Kubernetes objects, such as ReplicaSet, Deployment, StatefulSet, or DaemonSet, and in the next chapter, we will focus...