Summary
To conclude, Kubernetes is a container orchestration system that maintains a highly available cluster of machines that work together as a single entity. In this chapter, we discovered that Kubernetes supports several abstractions that allow containerized applications to be deployed to a cluster without being bound to specific machines. We also learned that pods represent a set of operating containers on your cluster. A deployment is an excellent fit for managing a stateless application workload on your cluster. StatefulSets can be used to run one or more connected pods to manage stateful applications, while DaemonSets specify pods and provide node-specific functionality. Finally, jobs and CronJobs handle batch processing and other key ad hoc tasks. In a nutshell, Kubernetes is a container orchestration system that is portable, extensible, and self-healing.
In the next chapter, we'll look at the lightweight Kubernetes engine known as MicroK8s, which can run on the edge, IoT, and appliances. MicroK8s is also ideal for offline prototyping, testing, and development.
