Adds Support for Glance Registry MySQL Idle Timeout

Previously, only the glance::api class could manage the sql idle
timeout.  This change allows the sql idle timeout for Glance
Registry to be configurable.

Defaults to '3600' for backwards compatibility with a
`wait_timeout' of 8 hours, after which MySQL will drop idle
connections.

Change-Id: I00d01e77af56384f4d74ab8de4a7d3bbd298e9a2

manifests/glance.pp

@@ -97,6 +97,7 @@ class openstack::glance (
     keystone_user     => 'glance',
     keystone_password => $user_password,
     sql_connection    => $sql_connection,
+    sql_idle_timeout  => $sql_idle_timeout,
     enabled           => $enabled,
   }
 

spec/classes/openstack_glance_spec.rb

@@ -45,6 +45,7 @@ describe 'openstack::glance' do
         :keystone_user     => 'glance',
         :keystone_password => 'glance_user_pass',
         :sql_connection    => 'mysql://glance:glance_db_pass@127.0.0.1/glance',
+        :sql_idle_timeout  => '3600',
         :enabled           => true
       )
       should contain_class('glance::backend::file')