Centos is missing folder /etc/ssl/private (#33)

* creating parent folder as it is missing for centos
* fix sphinx
diff --git a/metadata/service/support.yml b/metadata/service/support.yml
index 2d7b736..0f7c33c 100644
--- a/metadata/service/support.yml
+++ b/metadata/service/support.yml
@@ -14,4 +14,4 @@
       prometheus:
         enabled: true
       telegraf:
-        enabled: true
\ No newline at end of file
+        enabled: true