add new gcp host attributes

detectors/gcp/detector.go

@@ -23,7 +23,7 @@ import (
 
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/sdk/resource"
-	semconv "go.opentelemetry.io/otel/semconv/v1.17.0"
+	semconv "go.opentelemetry.io/otel/semconv/v1.21.0"
 )
 
 // NewDetector returns a resource detector which detects resource attributes on:
@@ -87,6 +87,8 @@ func (d *detector) Detect(ctx context.Context) (*resource.Resource, error) {
 		b.add(semconv.HostTypeKey, d.detector.GCEHostType)
 		b.add(semconv.HostIDKey, d.detector.GCEHostID)
 		b.add(semconv.HostNameKey, d.detector.GCEHostName)
+		b.add(semconv.GCPGceInstanceNameKey, d.detector.GCEInstanceHostname)
+		b.add(semconv.GCPGceInstanceHostnameKey, d.detector.GCEInstanceName)
 	default:
 		// We don't support this platform yet, so just return with what we have
 	}

detectors/gcp/detector_test.go

@@ -238,6 +238,8 @@ type fakeGCPDetector struct {
 	gceHostType               string
 	gceHostID                 string
 	gceHostName               string
+	gcpGceInstanceName        string
+	gcpGceInstanceHostname    string
 }
 
 func (f *fakeGCPDetector) ProjectID() (string, error) {
@@ -379,3 +381,17 @@ func (f *fakeGCPDetector) GCEHostName() (string, error) {
 	}
 	return f.gceHostName, nil
 }
+
+func (f *fakeGCPDetector) GCEInstanceName() (string, error) {
+	if f.err != nil {
+		return "", f.err
+	}
+	return f.gcpGceInstanceName, nil
+}
+
+func (f *fakeGCPDetector) GCEInstanceHostname() (string, error) {
+	if f.err != nil {
+		return "", f.err
+	}
+	return f.gcpGceInstanceHostname, nil
+}

detectors/gcp/types.go

@@ -37,4 +37,6 @@ type gcpDetector interface {
 	GCEHostType() (string, error)
 	GCEHostID() (string, error)
 	GCEHostName() (string, error)
+	GCEInstanceHostname() (string, error)
+	GCEInstanceName() (string, error)
 }