nova/wsgi: change script path for ubuntu

nova-api-wsgi is now available at /usr/bin/nova-api-wsgi in UCA
packaging so let's use it.

Change-Id: I012ce89554640a39cda5104e62a0f135ec5e92e1

manifests/params.pp

@@ -111,7 +111,7 @@ class nova::params {
       $nova_wsgi_script_path        = '/usr/lib/cgi-bin/nova'
       # TODO(aschultz): switch this later when UCA updates their packaging
       #$nova_api_wsgi_script_source  = '/usr/bin/nova-api-wsgi'
-      $nova_api_wsgi_script_source  = '/usr/lib/python2.7/dist-packages/nova/wsgi/nova-api.py'
+      $nova_api_wsgi_script_source  = '/usr/bin/nova-api-wsgi'
       $placement_wsgi_script_source = '/usr/bin/nova-placement-api'
       $placement_httpd_config_file  = '/etc/apache2/sites-available/nova-placement-api.conf'
       # debian specific nova config

spec/classes/nova_wsgi_apache_api_spec.rb

@@ -165,7 +165,7 @@ describe 'nova::wsgi::apache_api' do
             :httpd_service_name     => 'apache2',
             :httpd_ports_file       => '/etc/apache2/ports.conf',
             :wsgi_script_path       => '/usr/lib/cgi-bin/nova',
-            :api_wsgi_script_source => '/usr/lib/python2.7/dist-packages/nova/wsgi/nova-api.py',
+            :api_wsgi_script_source => '/usr/bin/nova-api-wsgi',
           }
         when 'RedHat'
           {

spec/classes/nova_wsgi_apache_spec.rb

@@ -157,7 +157,7 @@ describe 'nova::wsgi::apache' do
             :httpd_service_name     => 'apache2',
             :httpd_ports_file       => '/etc/apache2/ports.conf',
             :wsgi_script_path       => '/usr/lib/cgi-bin/nova',
-            :api_wsgi_script_source => '/usr/lib/python2.7/dist-packages/nova/wsgi/nova-api.py',
+            :api_wsgi_script_source => '/usr/bin/nova-api-wsgi',
           }
         when 'RedHat'
           {