Fix for show vxlan tunnel command display issue sonic-net#11902 (sonic-net#2391)

* Issue: Only one vni to vlan map entry in the output of show vxlan tunnel command Fix:
Fix: Added fix to display all vni to vlan map entries for "show vxlan tunnel" and "show vxlan name commands.

Author: skbhava

show/vxlan.py

@@ -32,10 +32,17 @@ def name(vxlan_name):
         vxlan_map_keys = config_db.keys(config_db.CONFIG_DB,
                                         'VXLAN_TUNNEL_MAP{}{}{}*'.format(config_db.KEY_SEPARATOR, vxlan_name, config_db.KEY_SEPARATOR))
         if vxlan_map_keys:
-            vxlan_map_mapping = config_db.get_all(config_db.CONFIG_DB, vxlan_map_keys[0])
-            r.append(vxlan_map_keys[0].split(config_db.KEY_SEPARATOR, 2)[2])
-            r.append("{} -> {}".format(vxlan_map_mapping.get('vni'), vxlan_map_mapping.get('vlan')))
-        table.append(r)
+            for key in natsorted(vxlan_map_keys):
+                vxlan_map_mapping = config_db.get_all(config_db.CONFIG_DB, key)
+                r.append(key.split(config_db.KEY_SEPARATOR, 2)[2])
+                r.append("{} -> {}".format(vxlan_map_mapping.get('vni'), vxlan_map_mapping.get('vlan')))
+                table.append(r)
+                r = []
+                r.append(' ')
+                r.append(' ')
+                r.append(' ')
+        else:
+            table.append(r)
 
     click.echo(tabulate(table, header))
 
@@ -59,10 +66,17 @@ def tunnel():
         vxlan_map_keys = config_db.keys(config_db.CONFIG_DB,
                                         'VXLAN_TUNNEL_MAP{}{}{}*'.format(config_db.KEY_SEPARATOR, k, config_db.KEY_SEPARATOR))
         if vxlan_map_keys:
-            vxlan_map_mapping = config_db.get_all(config_db.CONFIG_DB, vxlan_map_keys[0])
-            r.append(vxlan_map_keys[0].split(config_db.KEY_SEPARATOR, 2)[2])
-            r.append("{} -> {}".format(vxlan_map_mapping.get('vni'), vxlan_map_mapping.get('vlan')))
-        table.append(r)
+            for key in natsorted(vxlan_map_keys):
+                vxlan_map_mapping = config_db.get_all(config_db.CONFIG_DB, key)
+                r.append(key.split(config_db.KEY_SEPARATOR, 2)[2])
+                r.append("{} -> {}".format(vxlan_map_mapping.get('vni'), vxlan_map_mapping.get('vlan')))
+                table.append(r)
+                r = []
+                r.append(' ')
+                r.append(' ')
+                r.append(' ')
+        else:
+            table.append(r)
 
     click.echo(tabulate(table, header))
 

tests/vxlan_test.py

@@ -60,6 +60,15 @@
 
 """
 
+show_vxlan_name_output="""\
+vxlan tunnel name    source ip    destination ip    tunnel map name    tunnel map mapping(vni -> vlan)
+-------------------  -----------  ----------------  -----------------  ---------------------------------
+vtep1                1.1.1.1                        map_100_Vlan100    100 -> Vlan100
+                                                    map_101_Vlan101    101 -> Vlan101
+                                                    map_102_Vlan102    102 -> Vlan102
+                                                    map_200_Vlan200    200 -> Vlan200
+"""
+
 show_vxlan_remotevni_output="""\
 +---------+--------------+-------+
 | VLAN    | RemoteVTEP   |   VNI |
@@ -141,6 +150,22 @@ def test_show_vxlan_tunnel(self):
         assert result.exit_code == 0
         assert result.output == show_vxlan_tunnel_output
 
+    def test_show_vxlan_tunnel_output(self):
+        runner = CliRunner()
+        result = runner.invoke(show.cli.commands["vxlan"].commands["tunnel"], [])
+        print(result.exit_code)
+        print(result.output)
+        assert result.exit_code == 0
+        assert result.output == show_vxlan_name_output
+
+    def test_show_vxlan_name_vtep(self):
+        runner = CliRunner()
+        result = runner.invoke(show.cli.commands["vxlan"].commands["name"],["vtep1"])
+        print(result.exit_code)
+        print(result.output)
+        assert result.exit_code == 0
+        assert result.output == show_vxlan_name_output
+
     def test_show_vxlan_remotevni(self):
         runner = CliRunner()
         result = runner.invoke(show.cli.commands["vxlan"].commands["remotevni"], ["all"])