Add apic-no-external-cidrs field to OpenStack CLI network resource

Change-Id: I56013000c1dc2d1fc8bd6ca1b3878f92258e5864

gbpclient/gbp/v2_0/network.py

@@ -88,6 +88,9 @@ def _get_attrs_network_extension(client_manager, parsed_args):
         if parsed_args.apic_external_cidrs:
             attrs['apic:external_cidrs'
                   ] = parsed_args.apic_external_cidrs.split(",")
+        if 'apic_no_external_cidrs' in parsed_args and \
+           parsed_args.apic_no_external_cidrs:
+            attrs['apic:external_cidrs'] = []
     return attrs
 
 
@@ -423,10 +426,20 @@ class SetNetworkExtension(hooks.CommandHook):
             help=_("APIC external CIDRS for external network\n"
                    "For external type networks only\n"
                    "Data is passed as comma separated valid ip subnets\n"
+                   "Need to pass the --external argument wth this field\n"
                    "Default value is ['0.0.0.0/0']\n"
                    "Syntax Example: 10.10.10.0/24 "
                    "or 10.10.10.0/24,20.20.20.0/24 ")
         )
+        parser.add_argument(
+            '--apic-no-external-cidrs',
+            dest='apic_no_external_cidrs',
+            action='store_true',
+            help=_("Reset APIC external CIDRS for external network\n"
+                   "For external type networks only\n"
+                   "Need to pass the --external argument wth this field\n"
+                   "Resets the apic:external_cidrs field to 0.0.0.0/0 ")
+        )
         return parser
 
     def get_epilog(self):

gbpclient/tests/unit/test_network.py

@@ -34,6 +34,7 @@ class TestNetworkCreate(test_network.TestNetwork, test_cli20.CLITestV20Base):
     def test_create_default_options(self):
         arglist = [
             self._network.name,
+            "--external",
         ]
         verifylist = [
             ('name', self._network.name),
@@ -62,6 +63,7 @@ class TestNetworkCreate(test_network.TestNetwork, test_cli20.CLITestV20Base):
         self.network.create_network.assert_called_once_with(**{
             'admin_state_up': True,
             'name': self._network.name,
+            'router:external': True,
         })
 
     def test_create_all_options(self):
@@ -235,3 +237,41 @@ class TestNetworkSet(test_network.TestNetwork, test_cli20.CLITestV20Base):
         self.network.update_network.assert_called_once_with(
             self._network, **attrs)
         self.assertIsNone(result)
+
+    def test_set_apic_no_external_cidrs(self):
+        arglist = [
+            self._network.name,
+            "--external",
+            "--apic-no-external-cidrs",
+        ]
+        verifylist = [
+            ('network', self._network.name),
+            ('external', True),
+            ('apic_nested_domain_name', None),
+            ('apic_nested_domain_type', None),
+            ('apic_external_cidrs', None),
+            ('apic_no_external_cidrs', True),
+            ('apic_bgp_enable', None),
+            ('apic_bgp_asn', None),
+            ('apic_bgp_type', None),
+            ('apic_nested_domain_infra_vlan', None),
+            ('apic_nested_domain_allowed_vlans', None),
+            ('apic_nested_domain_service_vlan', None),
+            ('apic_nested_domain_node_network_vlan', None),
+            ('apic_extra_provided_contracts', None),
+            ('apic_extra_consumed_contracts', None),
+            ('apic_policy_enforcement_pref', None),
+        ]
+        set_ext = network_ext.SetNetworkExtension(self.app)
+        parsed_args = self.check_parser_ext(
+            self.cmd, arglist, verifylist, set_ext)
+        result = self.cmd.take_action(parsed_args)
+
+        attrs = {
+            'router:external': True,
+            'apic:external_cidrs': [],
+        }
+
+        self.network.update_network.assert_called_once_with(
+            self._network, **attrs)
+        self.assertIsNone(result)