[minigraph] Remove SLB and bgp monitor peers for storage backend (#12251)

Signed-off-by: Neetha John [email protected]

Why I did it
slb and bgp mon peers are not needed for storage backend. These neighbor are present in the minigraph.

How I did it
After minigraph parsing, remove these neighbors if it is a storage backend device

How to verify it
Unit tests
Verified on the device that once these tables are removed, these peers don't show up in "show runningconfig bgp" output

Author: neethajohn

src/sonic-config-engine/minigraph.py

@@ -1790,6 +1790,11 @@ def parse_xml(filename, platform=None, port_config_file=None, asic_name=None, hw
     if is_storage_device:
         results['DEVICE_METADATA']['localhost']['storage_device'] = "true"
 
+    # remove bgp monitor and slb peers for storage backend
+    if is_storage_device and 'BackEnd' in current_device['type']:
+        results['BGP_MONITORS'] = {}
+        results['BGP_PEER_RANGE'] = {}
+
     results['VLAN'] = vlans
     results['VLAN_MEMBER'] = vlan_members
 

src/sonic-config-engine/tests/test_cfggen.py

@@ -804,6 +804,14 @@ def verify_sub_intf(self, **kwargs):
             output = self.run_script(argument)
             self.assertEqual(output.strip(), "")
 
+            # SLB and BGP Monitor table does not exist
+            argument = '-m "' + graph_file + '" -p "' + self.port_config + '" -v "BGP_PEER_RANGE"'
+            output = self.run_script(argument)
+            self.assertEqual(output.strip(), "{}")
+            argument = '-m "' + graph_file + '" -p "' + self.port_config + '" -v "BGP_MONITORS"'
+            output = self.run_script(argument)
+            self.assertEqual(output.strip(), "{}")
+
             # ACL_TABLE should not contain EVERFLOW related entries
             argument = '-m "' + graph_file + '" -p "' + self.port_config + '" -v "ACL_TABLE"'
             output = self.run_script(argument)
@@ -1021,4 +1029,4 @@ def test_minigraph_packet_chassis_400g_zr_port_config(self):
         output = self.run_script(argument)
         output_dict = utils.to_dict(output.strip())
         self.assertEqual(output_dict['tx_power'], '7.5')
-        self.assertEqual(output_dict['laser_freq'], 131000)
+        self.assertEqual(output_dict['laser_freq'], 131000)