[ansible][minigraph] Fix minigraph template for devices which have autoneg enabled but the topo file does not contain autoneg interfaces (sonic-net#15134)

This pull request updates the Jinja2 template minigraph_link_meta.j2 by modifying the generation of the section.

Key Changes:
* The condition has been changed from simply checking if msft_an_enabled is defined to also checking if vm_topo_config.get('autoneg_interfaces') is not None.
* This ensures that the section is only included if both msft_an_enabled is defined and the autoneg_interfaces attribute in vm_topo_config exists and is not None.

This ensures if some testbeds/devices have msft_an_enabled they do not end up treated as autoneg devices unless the topo file contains the AN interface list

Signed-off-by: Vaibhav Dahiya <[email protected]>

Author: vdahiya12

ansible/library/conn_graph_facts.py

@@ -214,11 +214,11 @@ def parse_graph(self):
                 if start_dev:
                     self.links[start_dev][link.attrib['StartPort']] = {
                         'peerdevice': link.attrib['EndDevice'], 'peerport': link.attrib['EndPort'],
-                        'speed': link.attrib['BandWidth'], 'autoneg' : autoneg_mode}
+                        'speed': link.attrib['BandWidth'], 'autoneg': autoneg_mode}
                 if end_dev:
                     self.links[end_dev][link.attrib['EndPort']] = {
                         'peerdevice': link.attrib['StartDevice'], 'peerport': link.attrib['StartPort'],
-                        'speed': link.attrib['BandWidth'], 'autoneg' : autoneg_mode}
+                        'speed': link.attrib['BandWidth'], 'autoneg': autoneg_mode}
         console_root = self.root.find(self.csgtag)
         if console_root:
             devicecsgroot = console_root.find('DevicesConsoleInfo')

ansible/templates/minigraph_link_meta.j2

@@ -28,7 +28,7 @@
   </LinkMetadataDeclaration>
 {% endif %}
 
-{% if msft_an_enabled is defined %}
+{% if msft_an_enabled is defined and vm_topo_config.get('autoneg_interfaces') is not none %}
   <LinkMetadataDeclaration>
     <Link xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution">
 {% for if_index in vm_topo_config['autoneg_interfaces']['intfs'] %}