Add Telegraf.conf file

Change-Id: I68165aed928030c748cc8a810d3015422774e5d8
diff --git a/nginx/files/telegraf.conf b/nginx/files/telegraf.conf
new file mode 100644
index 0000000..e792f04
--- /dev/null
+++ b/nginx/files/telegraf.conf
@@ -0,0 +1,2 @@
+[[inputs.nginx]]
+  urls = {{ values.urls|json }}
\ No newline at end of file