Understanding GKE Enterprise
GKE Enterprise is a superset of GKE. GKE Enterprise has all the features of GKE, in addition to some features suited to helping customers manage GKE clusters at scale. Standard Kubernetes is fine for managing a small number of clusters. GKE Enterprise is for large-scale Kubernetes deployments. GKE Enterprise provides a single console enabling streamlined configuration and enhanced security features.
The management capabilities of GKE Enterprise stretch across public cloud and on-premises environments. Groups of clusters are called fleets, which can include clusters from multiple projects.
Identity management
Fleets provide two mechanisms for authentication across clusters: Connect Gateway and GKE Identity Service. Connect Gateway can be selected by those who wish to use Google Cloud as the identity provider. For those who want to use a different identity provider, GKE Identity Service can be used.
An example of when GKE Enterprise would be used...