NodePool contains the name and configuration for a cluster's node pool.
Node pools are a set of nodes (i.e. VM's), with a common configuration
and specification, under the control of the cluster master. They may
have a set of Kubernetes labels applied to them, which may be used to
reference them during pod scheduling. They may also be resized up or
down, to accommodate the workload.
The node configuration of the pool.
[Output only] Server-defined URL for the resource.
[Output only] The resource URLs of the managed instance
groups </compute/docs/instance-groups/creating-groups-of-
managed-instances>__ associated with this node pool.
[Output only] Additional information about the current status
of this node pool instance, if available.