Fix the wrong dest of 'vlan' option and add new 'vlan_start' option

Allow to specify vlan tag when create nova network, the dest of vlan
option should be 'vlan' instead of 'vlan_start'.
Provide new option 'vlan_start' when create nova network.

Change-Id: Idfaf58d4eee4d9bbf6bba5e0b6c9dbf82236694d
Closes-bug: #1329599

novaclient/tests/v1_1/test_networks.py

@@ -56,6 +56,7 @@ class NetworksTest(utils.TestCase):
             'multi_host': 'T',
             'priority': '1',
             'project_id': '1',
+            'vlan': 5,
             'vlan_start': 1,
             'vpn_start': 1
         }

novaclient/tests/v1_1/test_shell.py

@@ -1743,7 +1743,14 @@ class ShellTest(utils.TestCase):
         self.run_command('network-create --fixed-range-v4 192.168.0.0/24'
                          ' --vlan=200 new_network')
         body = {'network': {'cidr': '192.168.0.0/24', 'label': 'new_network',
-                            'vlan_start': '200'}}
+                            'vlan': '200'}}
+        self.assert_called('POST', '/os-networks', body)
+
+    def test_network_create_vlan_start(self):
+        self.run_command('network-create --fixed-range-v4 192.168.0.0/24'
+                         ' --vlan-start=100 new_network')
+        body = {'network': {'cidr': '192.168.0.0/24', 'label': 'new_network',
+                            'vlan_start': '100'}}
         self.assert_called('POST', '/os-networks', body)
 
     def test_add_fixed_ip(self):

novaclient/v1_1/networks.py

@@ -86,6 +86,7 @@ class NetworkManager(base.ManagerWithFind):
         :param multi_host: str
         :param priority: str
         :param project_id: str
+        :param vlan: int
         :param vlan_start: int
         :param vpn_start: int
 

novaclient/v1_1/shell.py

@@ -835,7 +835,7 @@ def _filter_network_create_options(args):
     valid_args = ['label', 'cidr', 'vlan_start', 'vpn_start', 'cidr_v6',
                   'gateway', 'gateway_v6', 'bridge', 'bridge_interface',
                   'multi_host', 'dns1', 'dns2', 'uuid', 'fixed_cidr',
-                  'project_id', 'priority']
+                  'project_id', 'priority', 'vlan']
     kwargs = {}
     for k, v in args.__dict__.items():
         if k in valid_args and v is not None:
@@ -855,9 +855,14 @@ def _filter_network_create_options(args):
      dest="cidr_v6",
      help=_('IPv6 subnet (ex: fe80::/64'))
 @utils.arg('--vlan',
-     dest='vlan_start',
+     dest='vlan',
      metavar='<vlan id>',
-     help=_("vlan id"))
+     help=_("vlan id to be assigned to project"))
+@utils.arg('--vlan-start',
+     dest='vlan_start',
+     metavar='<vlan start>',
+     help=_('First vlan ID to be assigned to project. Subsequent vlan'
+            ' IDs will be assigned incrementally'))
 @utils.arg('--vpn',
      dest='vpn_start',
      metavar='<vpn start>',