Kubernetes defines an API that is used to manage different types of objects or resources, as they are also known as. Some of the most commonly used types, or kinds, as they are referred to in the API, are as follows in my experience:
- Node: A node represents a server, virtual or physical, in the cluster.
- Pod: A pod represents the smallest possible deployable component in Kubernetes, consisting of one or more co-located containers. Typically, a pod consists of one container, but there are use cases for extending the functionality of the main container by running the second container in a pod. In Chapter 18, Using a Service Mesh to Improve Observability and Management, a second container will be used in the pods, running a sidecar that makes the main container join the service...