Add get_backdoor_port to consoleauth.

This adds a get_backdoor_port function to the consoleauth
service which enables returning the eventlet_backdoor port
from rpc for the service.

Change-Id: I7da9cbc8111342b5f49f148a8e3389faf5c4f2ab

nova/consoleauth/manager.py

@@ -45,7 +45,7 @@ CONF.import_opt('memcached_servers', 'nova.config')
 class ConsoleAuthManager(manager.Manager):
     """Manages token based authentication."""
 
-    RPC_API_VERSION = '1.0'
+    RPC_API_VERSION = '1.1'
 
     def __init__(self, scheduler_driver=None, *args, **kwargs):
         super(ConsoleAuthManager, self).__init__(*args, **kwargs)
@@ -75,3 +75,6 @@ class ConsoleAuthManager(manager.Manager):
         LOG.audit(_("Checking Token: %(token)s, %(token_valid)s)"), locals())
         if token_valid:
             return jsonutils.loads(token_str)
+
+    def get_backdoor_port(self, context):
+        return self.backdoor_port

nova/consoleauth/rpcapi.py

@@ -30,6 +30,7 @@ class ConsoleAuthAPI(nova.openstack.common.rpc.proxy.RpcProxy):
     API version history:
 
         1.0 - Initial version.
+        1.1 - Added get_backdoor_port()
     '''
 
     #
@@ -59,3 +60,7 @@ class ConsoleAuthAPI(nova.openstack.common.rpc.proxy.RpcProxy):
 
     def check_token(self, ctxt, token):
         return self.call(ctxt, self.make_msg('check_token', token=token))
+
+    def get_backdoor_port(self, ctxt, host):
+        return self.call(ctxt, self.make_msg('get_backdoor_port'),
+                         version='1.1')

nova/tests/consoleauth/test_consoleauth.py

@@ -49,3 +49,8 @@ class ConsoleauthTestCase(test.TestCase):
         self.assertTrue(self.manager.check_token(self.context, token))
         timeutils.advance_time_seconds(1)
         self.assertFalse(self.manager.check_token(self.context, token))
+
+    def test_get_backdoor_port(self):
+        self.manager.backdoor_port = 59697
+        port = self.manager.get_backdoor_port(self.context)
+        self.assertEqual(port, self.manager.backdoor_port)

nova/tests/consoleauth/test_rpcapi.py

@@ -18,6 +18,7 @@
 Unit Tests for nova.consoleauth.rpcapi
 """
 
+from nova.consoleauth import manager as consoleauth_manager
 from nova.consoleauth import rpcapi as consoleauth_rpcapi
 from nova import context
 from nova.openstack.common import cfg
@@ -32,8 +33,12 @@ class ConsoleAuthRpcAPITestCase(test.TestCase):
         ctxt = context.RequestContext('fake_user', 'fake_project')
         rpcapi = consoleauth_rpcapi.ConsoleAuthAPI()
         expected_retval = 'foo'
+        expected_version = kwargs.pop('version', rpcapi.BASE_RPC_API_VERSION)
         expected_msg = rpcapi.make_msg(method, **kwargs)
-        expected_msg['version'] = rpcapi.BASE_RPC_API_VERSION
+        expected_msg['version'] = expected_version
+
+        if method == 'get_backdoor_port':
+            del expected_msg['args']['host']
 
         self.call_ctxt = None
         self.call_topic = None
@@ -64,3 +69,7 @@ class ConsoleAuthRpcAPITestCase(test.TestCase):
 
     def test_check_token(self):
         self._test_consoleauth_api('check_token', token='t')
+
+    def test_get_backdoor_port(self):
+        self._test_consoleauth_api('get_backdoor_port', host='fake_host',
+                                   version='1.1')