Update expected code for http_response

Change-Id: I1aed21a589b1bdb724d04fc50b0fdb38de4ccffd
diff --git a/keystone/meta/telegraf.yml b/keystone/meta/telegraf.yml
index 5a96b39..6b92366 100644
--- a/keystone/meta/telegraf.yml
+++ b/keystone/meta/telegraf.yml
@@ -16,6 +16,8 @@
     http_response:
       keystone-public-api:
         address: "http://{{ server.bind.address|replace('0.0.0.0', '127.0.0.1') }}:{{ server.bind.public_port }}/"
+        expected_code: 300
       keystone-admin-api:
         address: "http://{{ server.bind.address|replace('0.0.0.0', '127.0.0.1') }}:{{ server.bind.private_port }}/"
+        expected_code: 300
 {%- endif %}