Add device, serial_no, and wwn tags to synthetic attributes (#6040)

plugins/inputs/smart/smart.go

@@ -253,8 +253,6 @@ func gatherDisk(acc telegraf.Accumulator, usesudo, collectAttributes bool, smart
 		tags := map[string]string{}
 		fields := make(map[string]interface{})
 
-		attr := attribute.FindStringSubmatch(line)
-		if len(attr) > 1 {
 		if collectAttributes {
 			deviceNode := strings.Split(device, " ")[0]
 			tags["device"] = path.Base(deviceNode)
@@ -265,6 +263,11 @@ func gatherDisk(acc telegraf.Accumulator, usesudo, collectAttributes bool, smart
 			if wwn, ok := deviceTags["wwn"]; ok {
 				tags["wwn"] = wwn
 			}
+		}
+
+		attr := attribute.FindStringSubmatch(line)
+		if len(attr) > 1 {
+			if collectAttributes {
 				tags["id"] = attr[1]
 				tags["name"] = attr[2]
 				tags["flags"] = attr[3]

plugins/inputs/smart/smart_test.go

@@ -4,7 +4,9 @@ import (
 	"errors"
 	"sync"
 	"testing"
+	"time"
 
+	"github.com/influxdata/telegraf"
 	"github.com/influxdata/telegraf/testutil"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
@@ -443,8 +445,61 @@ func TestGatherNvme(t *testing.T) {
 
 	wg.Add(1)
 	gatherDisk(acc, true, true, "", "", "", wg)
-	assert.Equal(t, 6, acc.NFields(), "Wrong number of fields gathered")
-	assert.Equal(t, uint64(4), acc.NMetrics(), "Wrong number of metrics gathered")
+
+	expected := []telegraf.Metric{
+		testutil.MustMetric("smart_device",
+			map[string]string{
+				"device":    ".",
+				"model":     "TS128GMTE850",
+				"serial_no": "D704940282?",
+			},
+			map[string]interface{}{
+				"exit_status": 0,
+				"health_ok":   true,
+				"temp_c":      38,
+			},
+			time.Now(),
+		),
+		testutil.MustMetric("smart_attribute",
+			map[string]string{
+				"device":    ".",
+				"id":        "9",
+				"name":      "Power_On_Hours",
+				"serial_no": "D704940282?",
+			},
+			map[string]interface{}{
+				"raw_value": 6038,
+			},
+			time.Now(),
+		),
+		testutil.MustMetric("smart_attribute",
+			map[string]string{
+				"device":    ".",
+				"id":        "12",
+				"name":      "Power_Cycle_Count",
+				"serial_no": "D704940282?",
+			},
+			map[string]interface{}{
+				"raw_value": 472,
+			},
+			time.Now(),
+		),
+		testutil.MustMetric("smart_attribute",
+			map[string]string{
+				"device":    ".",
+				"id":        "194",
+				"name":      "Temperature_Celsius",
+				"serial_no": "D704940282?",
+			},
+			map[string]interface{}{
+				"raw_value": 38,
+			},
+			time.Now(),
+		),
+	}
+
+	testutil.RequireMetricsEqual(t, expected, acc.GetTelegrafMetrics(),
+		testutil.SortMetrics(), testutil.IgnoreTime())
 }
 
 // smartctl output