Add serial console url attribute for nova server

Add 'serial' console type for nova server console
url attribute.

Change-Id: I24b3682893035cb9771e60a180e5b98cba1cab39
Closes-Bug: #1399049

heat/engine/clients/os/nova.py

@@ -439,6 +439,7 @@ echo -e '%s\tALL=(ALL)\tNOPASSWD: ALL' >> /etc/sudoers
                     'xvpvnc': server.get_vnc_console,
                     'spice-html5': server.get_spice_console,
                     'rdp-html5': server.get_rdp_console,
+                    'serial': server.get_serial_console
                 }
 
             def __getitem__(self, key):

heat/engine/resources/server.py

@@ -356,7 +356,7 @@ class Server(stack_user.StackUser):
               "can be specified as parameter to the get_attr function, "
               "e.g. get_attr: [ <server>, console_urls, novnc ]. "
               "Currently supported types are "
-              "novnc, xvpvnc, spice-html5, rdp-html5.")
+              "novnc, xvpvnc, spice-html5, rdp-html5, serial.")
         ),
     }
 

heat/tests/test_nova_client.py

@@ -347,6 +347,7 @@ class ConsoleUrlsTest(common.HeatTestCase):
         ('xvpvnc', dict(console_type='xvpvnc', srv_method='vnc')),
         ('spice', dict(console_type='spice-html5', srv_method='spice')),
         ('rdp', dict(console_type='rdp-html5', srv_method='rdp')),
+        ('serial', dict(console_type='serial', srv_method='serial')),
     ]
 
     def setUp(self):

heat/tests/test_server.py

@@ -2165,7 +2165,8 @@ class ServersTest(common.HeatTestCase):
 
         console_urls = ws._resolve_attribute('console_urls')
         self.assertIsInstance(console_urls, collections.Mapping)
-        supported_consoles = ('novnc', 'xvpvnc', 'spice-html5', 'rdp-html5')
+        supported_consoles = ('novnc', 'xvpvnc', 'spice-html5', 'rdp-html5',
+                              'serial')
         self.assertEqual(set(supported_consoles), set(console_urls.keys()))
         self.m.VerifyAll()