hiera-wsgi-processes-opt.diff

diff --git a/code/manifests/base/webserver.pp b/code/manifests/base/webserver.pp
index 4083752..c9b8aa9 100644
--- a/code/manifests/base/webserver.pp
+++ b/code/manifests/base/webserver.pp
@@ -90,7 +90,7 @@ class hg_indico::base::webserver inherits hg_indico::base::params {
   }
 
   $wsgi_daemon_options = {
-    processes          => 35,
+    processes          => hiera('wsgi_daemon_processes', 35),
     threads            => 1,
     inactivity-timeout => 3600,
     maximum-requests   => 500,