[processor/resourcedetection] Add back host.name on GKE

processor/resourcedetectionprocessor/internal/gcp/gcp.go

@@ -66,6 +66,7 @@ func (d *detector) Detect(context.Context) (resource pcommon.Resource, schemaURL
 		b.addZoneOrRegion(d.detector.GKEAvailabilityZoneOrRegion)
 		b.add(conventions.AttributeK8SClusterName, d.detector.GKEClusterName)
 		b.add(conventions.AttributeHostID, d.detector.GKEHostID)
+		b.add(conventions.AttributeHostName, d.detector.GCEHostName)
 	case gcp.CloudRun:
 		b.attrs.InsertString(conventions.AttributeCloudPlatform, conventions.AttributeCloudPlatformGCPCloudRun)
 		b.add(conventions.AttributeFaaSName, d.detector.FaaSName)

processor/resourcedetectionprocessor/internal/gcp/gcp_test.go

@@ -43,6 +43,7 @@ func TestDetect(t *testing.T) {
 			detector: &detector{detector: &fakeGCPDetector{
 				projectID:           "my-project",
 				cloudPlatform:       gcp.GKE,
+				gceHostName:         "my-gke-node-1234",
 				gkeHostID:           "1472385723456792345",
 				gkeClusterName:      "my-cluster",
 				gkeAvailabilityZone: "us-central1-c",
@@ -54,13 +55,15 @@ func TestDetect(t *testing.T) {
 				conventions.AttributeK8SClusterName:        "my-cluster",
 				conventions.AttributeCloudAvailabilityZone: "us-central1-c",
 				conventions.AttributeHostID:                "1472385723456792345",
+				conventions.AttributeHostName:              "my-gke-node-1234",
 			}),
 		},
 		{
 			desc: "regional GKE cluster",
 			detector: &detector{detector: &fakeGCPDetector{
 				projectID:      "my-project",
 				cloudPlatform:  gcp.GKE,
+				gceHostName:    "my-gke-node-1234",
 				gkeHostID:      "1472385723456792345",
 				gkeClusterName: "my-cluster",
 				gkeRegion:      "us-central1",
@@ -72,6 +75,7 @@ func TestDetect(t *testing.T) {
 				conventions.AttributeK8SClusterName: "my-cluster",
 				conventions.AttributeCloudRegion:    "us-central1",
 				conventions.AttributeHostID:         "1472385723456792345",
+				conventions.AttributeHostName:       "my-gke-node-1234",
 			}),
 		},
 		{

unreleased/mx-psi_gke-detector.yaml

@@ -0,0 +1,16 @@
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: bug_fix
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: resourcedetectionprocessor
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Add back `host.name` attribute when running on GKE
+
+# One or more tracking issues related to the change
+issues: [12354]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext: