feat(ddtrace/tracer): add Datadog-External-Env default HTTP header

DataDog · Jan 28, 2025 · d0985c4 · d0985c4
1 parent d64e06c
commit d0985c4
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Showing 2 changed files with 7 additions and 0 deletions.
diff --git a/ddtrace/tracer/transport.go b/ddtrace/tracer/transport.go
@@ -104,6 +104,9 @@ func newHTTPTransport(url string, client *http.Client) *httpTransport {
 	if eid := internal.EntityID(); eid != "" {
 		defaultHeaders["Datadog-Entity-ID"] = eid
 	}
+	if extEnv := internal.ExternalEnvironment(); extEnv != "" {
+		defaultHeaders["Datadog-External-Env"] = extEnv
+	}
 	return &httpTransport{
 		traceURL: fmt.Sprintf("%s/v0.4/traces", url),
 		statsURL: fmt.Sprintf("%s/v0.6/stats", url),

diff --git a/internal/env.go b/internal/env.go
@@ -133,3 +133,7 @@ func BoolVal(val string, def bool) bool {
 	}
 	return v
 }
+
+func ExternalEnvironment() string {
+	return os.Getenv("DD_EXTERNAL_ENV")
+}