cluster/identd/ident: add TestE2E

Change-Id: I8a95fadf19376de2806cb63897b77e370559392f
diff --git a/cluster/identd/ident/BUILD.bazel b/cluster/identd/ident/BUILD.bazel
index 17731c2..737b814 100644
--- a/cluster/identd/ident/BUILD.bazel
+++ b/cluster/identd/ident/BUILD.bazel
@@ -17,6 +17,7 @@
 go_test(
     name = "go_default_test",
     srcs = [
+        "e2e_test.go",
         "request_test.go",
         "response_test.go",
         "server_test.go",