This chapter covers the operations side of Kubernetes as we walk through how to maintain applications that are already running in Kubernetes. The previous chapter covered how to create Deployments (including templating), scheduling attributes, ConfigMaps, and Secrets. This chapter covers common approaches you will take on the exam to complete tasks such as providing additional resources for an application, scaling applications, providing a consistent Endpoint for applications, and rolling out new versions of an application. In continuation of the workloads and scheduling exam curriculum, this chapter, combined with the previous chapter, will cover 15% of the exam and is a part of accomplishing high availability and self-healing for applications running in Kubernetes.
