Create a Base OS VM Image in the VMware vSphere Client (air-gapped)
Create a base OS image in the vSphere client
Creating a base OS image from DVD ISO files is a one-time process. Building a base OS image creates a base vSphere template in your vSphere environment. You can use the base OS image template to create a Kubernetes node vSphere template for your cluster.
Refer to the vCenter and vSphere Client documentation for details.
The next step is to create a vSphere VM template that contains all of the configuration and artifacts needed to create a Kubernetes cluster.