{"additionalProperties": false, "type": "object", "properties": {"service-name-prefix": {"type": "string"}, "realm": {"type": "string"}, "keytab-file": {"type": "string"}, "security-realm": {"type": "string"}, "use-canonical-hostname": {"default": false, "type": "boolean"}, "spn": {"type": "string"}, "principal": {"type": "string"}}}