{ "$$version": 1, "$schema": "http://json-schema.org/draft-04/schema#", "type": "object", "additionalProperties": false, "$$order": [ "hostname" ], "title": "Optional hostname configuration", "properties": { "hostname": { "type": "string", "format": "hostname", "title": "Hostname", "default": "example.com", "description": "Hostname is a name of your machine." } } }