Add aggressive negotiation mode for ikepolicy

The phase1 negotiation mode adds support for aggressive mode,
which can be selected when creating an ikepolicy.

Change-Id: I8148011558094db07b5f9eba70b16cfe6eeaf98f
Partial-Bug: #1701413

neutronclient/osc/v2/vpnaas/ikepolicy.py

@@ -64,7 +64,7 @@ def _get_common_parser(parser):
         help=_('Encryption algorithm'))
     parser.add_argument(
         '--phase1-negotiation-mode',
-        choices=['main'],
+        choices=['main', 'aggressive'],
         type=_convert_to_lowercase,
         help=_('IKE Phase1 negotiation mode'))
     parser.add_argument(

neutronclient/tests/unit/osc/v2/vpnaas/test_ikepolicy.py

@@ -208,6 +208,10 @@ class TestCreateIKEPolicy(TestIKEPolicy, common.TestCreateVPNaaS):
     def test_create_with_all_params_name(self):
         self._test_create_with_all_params({'name': 'new_ikepolicy'})
 
+    def test_create_with_all_params_aggressive_mode(self):
+        self._test_create_with_all_params(
+            {'phase1_negotiation_mode': 'aggressive'})
+
 
 class TestDeleteIKEPolicy(TestIKEPolicy, common.TestDeleteVPNaaS):
 
@@ -292,6 +296,22 @@ class TestSetIKEPolicy(TestIKEPolicy, common.TestSetVPNaaS):
             target, {self.res: {'auth_algorithm': 'sha256'}})
         self.assertIsNone(result)
 
+    def test_set_phase1_negotiation_mode_with_aggressive(self):
+        target = self.resource['id']
+        phase1_negotiation_mode = 'aggressive'
+        arglist = [target,
+                   '--phase1-negotiation-mode', phase1_negotiation_mode]
+        verifylist = [
+            (self.res, target),
+            ('phase1_negotiation_mode', phase1_negotiation_mode),
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+        result = self.cmd.take_action(parsed_args)
+
+        self.mocked.assert_called_once_with(
+            target, {self.res: {'phase1_negotiation_mode': 'aggressive'}})
+        self.assertIsNone(result)
+
 
 class TestShowIKEPolicy(TestIKEPolicy, common.TestShowVPNaaS):
 

releasenotes/notes/add-aggressive-negotiation-mode-5218b1baff930eb8.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    The ``--phase1-negotiation-mode`` option supports ``aggressive`` mode
+    in VPNaaS ikepolicy commands.