vxlan: T5699: migrate "external" CLI know to "parameters external"

As we have a bunch of options under "paramteres" already and "external" is
clearly one of them it should be migrated under that node as well.

(cherry picked from commit cc7ba8824a5e9ec818f0bbe7fb85e1713a591527)

5 files changed, 27 insertions, 21 deletions

diff --git a/interface-definitions/interfaces-vxlan.xml.in b/interface-definitions/interfaces-vxlan.xml.in
index 3fae17178..d22e46bbc 100644
--- a/interface-definitions/interfaces-vxlan.xml.in
+++ b/interface-definitions/interfaces-vxlan.xml.in
@@ -19,12 +19,6 @@
           #include <include/interface/address-ipv4-ipv6.xml.i>
           #include <include/generic-description.xml.i>
           #include <include/interface/disable.xml.i>
-          <leafNode name="external">
-            <properties>
-              <help>Use external control plane</help>
-              <valueless/>
-            </properties>
-          </leafNode>
           <leafNode name="gpe">
             <properties>
               <help>Enable Generic Protocol extension (VXLAN-GPE)</help>
@@ -83,6 +77,12 @@
                   #include <include/interface/parameters-flowlabel.xml.i>
                 </children>
               </node>
+              <leafNode name="external">
+                <properties>
+                  <help>Use external control plane</help>
+                  <valueless/>
+                </properties>
+              </leafNode>
               <leafNode name="nolearning">
                 <properties>
                   <help>Do not add unknown addresses into forwarding database</help>
diff --git a/python/vyos/ifconfig/vxlan.py b/python/vyos/ifconfig/vxlan.py
index 1fe5db7cd..2ea48b214 100644
--- a/python/vyos/ifconfig/vxlan.py
+++ b/python/vyos/ifconfig/vxlan.py
@@ -68,8 +68,8 @@ class VXLANIf(Interface):
         # - https://man7.org/linux/man-pages/man8/ip-link.8.html
         mapping = {
             'group'                      : 'group',
-            'external'                   : 'external',
             'gpe'                        : 'gpe',
+            'parameters.external'        : 'external',
             'parameters.ip.df'           : 'df',
             'parameters.ip.tos'          : 'tos',
             'parameters.ip.ttl'          : 'ttl',
diff --git a/smoketest/scripts/cli/test_interfaces_vxlan.py b/smoketest/scripts/cli/test_interfaces_vxlan.py
index e9c9e68fd..cf05148ae 100755
--- a/smoketest/scripts/cli/test_interfaces_vxlan.py
+++ b/smoketest/scripts/cli/test_interfaces_vxlan.py
@@ -107,7 +107,7 @@ class VXLANInterfaceTest(BasicInterfaceTest.TestCase):
     def test_vxlan_external(self):
         interface = 'vxlan0'
         source_address = '192.0.2.1'
-        self.cli_set(self._base_path + [interface, 'external'])
+        self.cli_set(self._base_path + [interface, 'parameters', 'external'])
         self.cli_set(self._base_path + [interface, 'source-address', source_address])
 
         # Both 'VNI' and 'external' can not be specified at the same time.
@@ -150,7 +150,7 @@ class VXLANInterfaceTest(BasicInterfaceTest.TestCase):
             '31': '10031',
         }
 
-        self.cli_set(self._base_path + [interface, 'external'])
+        self.cli_set(self._base_path + [interface, 'parameters', 'external'])
         self.cli_set(self._base_path + [interface, 'source-interface', source_interface])
 
         for vlan, vni in vlan_to_vni.items():
diff --git a/src/conf_mode/interfaces-vxlan.py b/src/conf_mode/interfaces-vxlan.py
index ff8144e74..16cc96c63 100755
--- a/src/conf_mode/interfaces-vxlan.py
+++ b/src/conf_mode/interfaces-vxlan.py
@@ -34,6 +34,7 @@ from vyos.configverify import verify_bond_bridge_member
 from vyos.ifconfig import Interface
 from vyos.ifconfig import VXLANIf
 from vyos.template import is_ipv6
+from vyos.utils.dict import dict_search
 from vyos import ConfigError
 from vyos import airbag
 airbag.enable()
@@ -53,7 +54,7 @@ def get_config(config=None):
     # VXLAN interfaces are picky and require recreation if certain parameters
     # change. But a VXLAN interface should - of course - not be re-created if
     # it's description or IP address is adjusted. Feels somehow logic doesn't it?
-    for cli_option in ['parameters', 'external', 'gpe', 'group', 'port', 'remote',
+    for cli_option in ['parameters', 'gpe', 'group', 'port', 'remote',
                        'source-address', 'source-interface', 'vni']:
         if is_node_changed(conf, base + [ifname, cli_option]):
             vxlan.update({'rebuild_required': {}})
@@ -94,17 +95,17 @@ def verify(vxlan):
     if not any(tmp in ['group', 'remote', 'source_address', 'source_interface'] for tmp in vxlan):
         raise ConfigError('Group, remote, source-address or source-interface must be configured')
 
-    if 'vni' not in vxlan and 'external' not in vxlan:
-        raise ConfigError(
-            'Must either configure VXLAN "vni" or use "external" CLI option!')
+    if 'vni' not in vxlan and dict_search('parameters.external', vxlan) == None:
+        raise ConfigError('Must either configure VXLAN "vni" or use "external" CLI option!')
 
-    if {'external', 'vni'} <= set(vxlan):
-        raise ConfigError('Can not specify both "external" and "VNI"!')
+    if dict_search('parameters.external', vxlan):
+        if 'vni' in vxlan:
+            raise ConfigError('Can not specify both "external" and "VNI"!')
 
-    if {'external', 'other_tunnels'} <= set(vxlan):
-        other_tunnels = ', '.join(vxlan['other_tunnels'])
-        raise ConfigError(f'Only one VXLAN tunnel is supported when "external" '\
-                          f'CLI option is used. Additional tunnels: {other_tunnels}')
+        if 'other_tunnels' in vxlan:
+            other_tunnels = ', '.join(vxlan['other_tunnels'])
+            raise ConfigError(f'Only one VXLAN tunnel is supported when "external" '\
+                              f'CLI option is used. Additional tunnels: {other_tunnels}')
 
     if 'gpe' in vxlan and 'external' not in vxlan:
         raise ConfigError(f'VXLAN-GPE is only supported when "external" '\
diff --git a/src/migration-scripts/interfaces/31-to-32 b/src/migration-scripts/interfaces/31-to-32
index 35b397c39..ca3d19320 100755
--- a/src/migration-scripts/interfaces/31-to-32
+++ b/src/migration-scripts/interfaces/31-to-32
@@ -27,7 +27,8 @@ if len(argv) < 2:
 file_name = argv[1]
 with open(file_name, 'r') as f:
     config_file = f.read()
-    base = ['interfaces', 'vxlan']
+
+base = ['interfaces', 'vxlan']
 
 config = ConfigTree(config_file)
 if not config.exists(base):
@@ -35,7 +36,11 @@ if not config.exists(base):
     exit(0)
 
 for vxlan in config.list_nodes(base):
-    if not config.exists(base + ['port']):
+    if config.exists(base + [vxlan, 'external']):
+        config.delete(base + [vxlan, 'external'])
+        config.set(base + [vxlan, 'parameters', 'external'])
+
+    if not config.exists(base + [vxlan, 'port']):
         config.set(base + [vxlan, 'port'], value='8472')
 
 try: