Make sure the wsgi script dir mode is 0755

When the system-wide umask setting is more restrictive than the
default setting, the wsgi script directory permissions may not allow
the apache process to access them, resulting in errors.

A similar fix was applied to Keystone some time ago, see [1].

[1] - 4f15fb64b1

Change-Id: Ie9769657dc530bc895a3119b3e458864a8b5f293

manifests/wsgi/apache.pp

@@ -252,6 +252,7 @@ define openstacklib::wsgi::apache (
       ensure => directory,
       owner  => $user,
       group  => $group,
+      mode   => '0755',
     }
   }
 

spec/defines/openstacklib_wsgi_apache_spec.rb

@@ -54,6 +54,7 @@ describe 'openstacklib::wsgi::apache' do
         'ensure'  => 'directory',
         'owner'   => 'keystone',
         'group'   => 'keystone',
+        'mode'    => '0755',
       )}
 
       it { is_expected.to contain_file('keystone_wsgi').with(