Add http_response input for endpoint

Change-Id: I5301785a9c1eaa510505f656da8e7af1e1d7bad7
diff --git a/metadata/service/support.yml b/metadata/service/support.yml
index dc6c05b..556e589 100644
--- a/metadata/service/support.yml
+++ b/metadata/service/support.yml
@@ -9,3 +9,5 @@
         enabled: false
       sphinx:
         enabled: true
+      telegraf:
+        enabled: true