Add CCRID to the host metadata

pkg/opentelemetry-mapping-go/inframetadata/internal/hostmap/hostmap.go

@@ -152,6 +152,15 @@ func ec2Hostname(m pcommon.Map) (string, bool, error) {
 	return strField(m, string(conventions.HostNameKey))
 }
 
+// getCCRID gets Canonical Cloud Resource ID from a resource attribute map.
+// It returns:
+// - The CCRID if available
+// - Whether CCRID was found
+// - Any errors found retrieving the ID
+func getCCRID(m pcommon.Map) (string, bool, error) {
+	return strField(m, "datadog.ccrid")
+}
+
 // Set a hardcoded host metadata payload.
 func (m *HostMap) Set(md payload.HostMetadata) error {
 	m.mu.Lock()
@@ -249,6 +258,16 @@ func (m *HostMap) Update(host string, res pcommon.Resource) (changed bool, md pa
 		md.Meta.EC2Hostname = ec2Host
 	}
 
+	//Get CCRID (Canonical Cloud Resource ID: AWS=ARN, Azure=Resource ID, GCP=CAI, OCI=OCID)
+	if ccrid, ok, err2 := getCCRID(res.Attributes()); err2 != nil {
+		err = errors.Join(err, err2)
+	} else if ok {
+		if ccrid != md.Meta.CanonicalCloudResourceID {
+			md.Meta.CanonicalCloudResourceID = ccrid
+			changed = true
+		}
+	}
+
 	// Gohai - Platform
 	md.Platform()["hostname"] = host
 	for field, attribute := range platformAttributesMap {

pkg/opentelemetry-mapping-go/inframetadata/payload/payload.go

@@ -80,6 +80,9 @@ type Meta struct {
 
 	// HostAliases are other available host names
 	HostAliases []string `json:"host_aliases,omitempty"`
+
+	// CCRID
+	CanonicalCloudResourceID string `json:"ccrid,omitempty"`
 }
 
 // NewEmpty creates a new HostMetadata with empty fields.