Every configuration existing on a Kubernetes cluster is represented by Kubernetes objects. These objects can be managed through the Kubernetes API and should be expressed in a YAML format. You may use that API directly, but will probably decide to leverage the kubectl command-line interface to make all the necessary calls for you. The description of a newly created object in Kubernetes has to provide specification that describes its desired state, as well as some basic information about the object. The following are some required fields in the YAML configuration file that should always be set:
- apiVersion: This indicates the version of the Kubernetes API used to create an object. An API always requires the JSON format ...
