Delete empty tags and meta data tags

receivers/redfishReceiver.go

@@ -79,14 +79,29 @@ func (r *RedfishReceiver) Start() {
 			if err != nil {
 				return fmt.Errorf("readPowerMetric: chassis.Power() failed: %v", err)
 			}
+			if power == nil {
+				continue
+			}
 
 			// Read min, max and average consumed watts for each power control
 			for _, pc := range power.PowerControl {
 
 				// Map of collected metrics
 				metrics := map[string]float32{
+					// PowerConsumedWatts shall represent the actual power being consumed (in
+					// Watts) by the chassis
+					"consumed_watts": pc.PowerConsumedWatts,
+					// AverageConsumedWatts shall represent the
+					// average power level that occurred averaged over the last IntervalInMin
+					// minutes.
 					"average_consumed_watts": pc.PowerMetrics.AverageConsumedWatts,
+					// MinConsumedWatts shall represent the
+					// minimum power level in watts that occurred within the last
+					// IntervalInMin minutes.
 					"min_consumed_watts": pc.PowerMetrics.MinConsumedWatts,
+					// MaxConsumedWatts shall represent the
+					// maximum power level in watts that occurred within the last
+					// IntervalInMin minutes
 					"max_consumed_watts": pc.PowerMetrics.MaxConsumedWatts,
 				}
 				intervalInMin := strconv.FormatFloat(float64(pc.PowerMetrics.IntervalInMin), 'f', -1, 32)
@@ -97,19 +112,46 @@ func (r *RedfishReceiver) Start() {
 				}
 
 				for name, value := range metrics {
-					y, err := lp.New(
-						name,
-						map[string]string{
+					// Set tags
+					tags := map[string]string{
 						"hostname": *clientConfig.Hostname,
 						"type":     "node",
+						// ID uniquely identifies the resource
+						"id": pc.ID,
+						// MemberID shall uniquely identify the member within the collection. For
+						// services supporting Redfish v1.6 or higher, this value shall be the
+						// zero-based array index.
+						"member_id": pc.MemberID,
+						// PhysicalContext shall be a description of the affected device(s) or region
+						// within the chassis to which this power control applies.
+						"physical_context": string(pc.PhysicalContext),
+						// Name
 						"power_control_name": pc.Name,
-						},
-						map[string]string{
+					}
+
+					// Delete empty tags
+					for key, value := range tags {
+						if value == "" {
+							delete(tags, key)
+						}
+					}
+
+					// Set meta data tags
+					meta := map[string]string{
 						"source":              r.name,
 						"group":               "Energy",
 						"interval_in_minutes": intervalInMin,
 						"unit":                "watts",
-						},
+					}
+
+					// Delete empty tags
+					for key, value := range meta {
+						if value == "" {
+							delete(meta, key)
+						}
+					}
+
+					y, err := lp.New(name, tags, meta,
 						map[string]interface{}{
 							"value": value,
 						},