[minigraph.py] Generate items needed by streaming telemetry service (#3759)

Author: pra-moh

src/sonic-config-engine/minigraph.py

@@ -627,7 +627,13 @@ def parse_xml(filename, platform=None, port_config_file=None):
         'hostname': hostname,
         'hwsku': hwsku,
         'type': current_device['type']
-        }}
+        },
+        'x509': {
+            'server_crt': '/etc/sonic/telemetry/streamingtelemetryserver.cer',
+            'server_key': '/etc/sonic/telemetry/streamingtelemetryclient.key',
+            'ca_crt': '/etc/sonic/telemetry/dsmsroot.cer'
+        }
+    }
     results['BGP_NEIGHBOR'] = bgp_sessions
     results['BGP_MONITORS'] = bgp_monitors
     results['BGP_PEER_RANGE'] = bgp_peers_with_range
@@ -806,6 +812,13 @@ def parse_xml(filename, platform=None, port_config_file=None):
             'status': 'enabled'
         }
     }
+    results['TELEMETRY'] = {
+        'gnmi': {
+            'client_auth': 'true',
+            'port': '50051',
+            'log_level': '2'
+        }
+    }
 
     # Do not configure the minigraph's mirror session, which is currently unused
     # mirror_sessions = {}