Kubernetes is one of the most famous and used open-source projects worldwide and in all types of projects. The recommendations while deploying it are really specific: Create it with three or five master nodes to stay in HA (High Availability). Not all have to be configured in high availability. We will review considerations, recommendations, and we will help you to make the right decision when creating these trending infrastructures. We will experiment with destroying the master node of a single master Kubernetes cluster having a running application on it.