Export textual chassis model and manufacturer metric

Author: Dylan Gardner

collector/chassis_collector.go

@@ -14,6 +14,7 @@ import (
 var (
 	ChassisSubsystem                  = "chassis"
 	ChassisLabelNames                 = []string{"resource", "chassis_id"}
+	ChassisModel                      = []string{"resource", "chassis_id", "manufacturer", "model", "part_number"}
 	ChassisTemperatureLabelNames      = []string{"resource", "chassis_id", "sensor", "sensor_id"}
 	ChassisFanLabelNames              = []string{"resource", "chassis_id", "fan", "fan_id"}
 	ChassisPowerVoltageLabelNames     = []string{"resource", "chassis_id", "power_voltage", "power_voltage_id"}
@@ -39,6 +40,14 @@ var (
 				nil,
 			),
 		},
+		"chassis_model_info": {
+			desc: prometheus.NewDesc(
+				prometheus.BuildFQName(namespace, ChassisSubsystem, "model_info"),
+				"organization responsible for producing the chassis, the name by which the manufacturer generally refers to the chassis, and a part number assigned by the organization that is responsible for producing or manufacturing the chassis",
+				ChassisModel,
+				nil,
+			),
+		},
 		"chassis_temperature_sensor_state": {
 			desc: prometheus.NewDesc(
 				prometheus.BuildFQName(namespace, ChassisSubsystem, "temperature_sensor_state"),
@@ -245,6 +254,12 @@ func (c *ChassisCollector) Collect(ch chan<- prometheus.Metric) {
 				ch <- prometheus.MustNewConstMetric(c.metrics["chassis_state"].desc, prometheus.GaugeValue, chassisStatusStateValue, ChassisLabelValues...)
 			}
 
+			chassisManufacturer := chassis.Manufacturer
+			chassisModel := chassis.Model
+			chassisPartNumber := chassis.PartNumber
+			ChassisModelLabelValues := []string{"chassis", chassisID, chassisManufacturer, chassisModel, chassisPartNumber}
+			ch <- prometheus.MustNewConstMetric(c.metrics["chassis_model_info"].desc, prometheus.GaugeValue, 1, ChassisModelLabelValues...)
+
 			chassisThermal, err := chassis.Thermal()
 			if err != nil {
 				chassisLogContext.WithField("operation", "chassis.Thermal()").WithError(err).Error("error getting thermal data from chassis")