Vultr instance metadata service.

The service answers on the link-local address 169.254.169.254. No request needs an authentication header. /v1.json returns the whole metadata document.

The document reports the instance identifiers and the region code, for example EWR. The identity uses the version 2 identifier when the document holds one. The document reports no machine type, no zone, and no owner scope, so instance_type, zone, and scope_id are nil.

Detection needs an instance identifier and a region code in the document.