[VOL-2027] Included instanceId in log message

Change-Id: I83e54640169d9a010ea0a644e8e3ef8ed0663827
diff --git a/internal/pkg/afrouter/round-robin-router_test.go b/internal/pkg/afrouter/round-robin-router_test.go
index 5d8331e..972832e 100644
--- a/internal/pkg/afrouter/round-robin-router_test.go
+++ b/internal/pkg/afrouter/round-robin-router_test.go
@@ -31,7 +31,7 @@
 )
 
 func init() {
-	log.SetDefaultLogger(log.JSON, log.DebugLevel, nil)
+	log.SetDefaultLogger(log.JSON, log.DebugLevel, log.Fields{"instanceId": 1})
 	log.AddPackage(log.JSON, log.WarnLevel, nil)
 }