Adding metrics_server.
diff --git a/test/cpp/util/BUILD b/test/cpp/util/BUILD
index 93aaeaa..56e8601 100644
--- a/test/cpp/util/BUILD
+++ b/test/cpp/util/BUILD
@@ -118,3 +118,17 @@
         "protobuf_clib",
     ],
 )
+
+grpc_cc_library(
+    name = "metrics_server_lib",
+    srcs = [
+        "metrics_server.cc",
+    ],
+    hdrs = [
+        "metrics_server.h",
+    ],
+    deps = [
+        "//src/proto/grpc/testing:metrics_proto",
+        "//:grpc++",
+    ],
+)