Anthos on bare metal allows us to install Google Kubernetes Engine (GKE) clusters to on-premises data centers without the need for a vSphere environment.

Anthos on bare metal works reliably and efficiently in multiple computing environments and without the need for a virtual machine. For customers looking for increased compute efficiency, this option provides greater available CPU resources and may be a preferred cost optimization.

We can define four types of clusters with Anthos on bare metal:

• admin ─ A cluster used to manage user clusters.
• user ─ A cluster used to run workloads.
• hybrid ─ A single cluster for both admin and workloads, that can also manage user clusters.
• standalone ─ A single cluster that can administer itself, and that can also run workloads, but can’t create or manage other user clusters.