Fixed switch role check for IDF isolation configuration (#19543)

Fixed switch role check for IDF isolation configuration

Author: tjchadaga

src/sonic-bgpcfgd/bgpcfgd/managers_bgp.py

@@ -107,6 +107,7 @@ def __init__(self, common_objs, db_name, table_name, peer_type, check_neig_meta)
 
         deps = [
             ("CONFIG_DB", swsscommon.CFG_DEVICE_METADATA_TABLE_NAME, "localhost/bgp_asn"),
+            ("CONFIG_DB", swsscommon.CFG_DEVICE_METADATA_TABLE_NAME, "localhost/type"),
             ("CONFIG_DB", swsscommon.CFG_LOOPBACK_INTERFACE_TABLE_NAME, "Loopback0"),
             ("CONFIG_DB", swsscommon.CFG_BGP_DEVICE_GLOBAL_TABLE_NAME, "tsa_enabled"),
             ("CONFIG_DB", swsscommon.CFG_BGP_DEVICE_GLOBAL_TABLE_NAME, "idf_isolation_state"),

src/sonic-bgpcfgd/bgpcfgd/managers_device_global.py

@@ -19,8 +19,8 @@ def __init__(self, common_objs, db, table):
         :param common_objs: common object dictionary
         :param db: name of the db
         :param table: name of the table in the db
-        """
-        self.switch_type = ""
+        """        
+        self.switch_role = ""
         self.chassis_tsa = ""
         self.directory = common_objs['directory']
         self.cfg_mgr = common_objs['cfg_mgr']
@@ -29,8 +29,8 @@ def __init__(self, common_objs, db, table):
         self.tsb_template = common_objs['tf'].from_file("bgpd/tsa/bgpd.tsa.unisolate.conf.j2")
         self.wcmp_template = common_objs['tf'].from_file("bgpd/wcmp/bgpd.wcmp.conf.j2")
         self.idf_isolate_template = common_objs['tf'].from_file("bgpd/idf_isolate/idf_isolate.conf.j2")
-        self.idf_unisolate_template = common_objs['tf'].from_file("bgpd/idf_isolate/idf_unisolate.conf.j2")
-        self.directory.subscribe([("CONFIG_DB", swsscommon.CFG_DEVICE_METADATA_TABLE_NAME, "localhost/switch_type"),], self.on_switch_type_change)
+        self.idf_unisolate_template = common_objs['tf'].from_file("bgpd/idf_isolate/idf_unisolate.conf.j2")        
+        self.directory.subscribe([("CONFIG_DB", swsscommon.CFG_DEVICE_METADATA_TABLE_NAME, "localhost/type"),], self.handle_type_update)
         super(DeviceGlobalCfgMgr, self).__init__(
             common_objs,
             [],
@@ -48,18 +48,16 @@ def __init__(self, common_objs, db, table):
         if not self.directory.path_exist(self.db_name, self.table_name, "idf_isolation_state"):
             self.directory.put(self.db_name, self.table_name, "idf_isolation_state", self.IDF_DEFAULTS)
 
-    def on_switch_type_change(self):
-        log_debug("DeviceGlobalCfgMgr:: Switch type update handler")
-        if self.directory.path_exist("CONFIG_DB", swsscommon.CFG_DEVICE_METADATA_TABLE_NAME, "localhost/switch_type"):
-            self.switch_type = self.directory.get_slot("CONFIG_DB", swsscommon.CFG_DEVICE_METADATA_TABLE_NAME)["localhost"]["switch_type"]
-        log_debug("DeviceGlobalCfgMgr:: Switch type: %s" % self.switch_type)
+    def handle_type_update(self):
+        log_debug("DeviceGlobalCfgMgr:: Switch role update handler")
+        if self.directory.path_exist("CONFIG_DB", swsscommon.CFG_DEVICE_METADATA_TABLE_NAME, "localhost/type"):
+            self.switch_role = self.directory.get_slot("CONFIG_DB", swsscommon.CFG_DEVICE_METADATA_TABLE_NAME)["localhost"]["type"]
+        log_debug("DeviceGlobalCfgMgr:: Switch role: %s" % self.switch_role)
 
     def set_handler(self, key, data):
         """ Handle device TSA/W-ECMP state change """
         log_debug("DeviceGlobalCfgMgr:: set handler")
 
-        if self.switch_type:
-            log_debug("DeviceGlobalCfgMgr:: Switch type: %s" % self.switch_type)
         if not data:
             log_err("DeviceGlobalCfgMgr:: data is None")
             return False
@@ -259,8 +257,8 @@ def downstream_isolate_unisolate(self, idf_isolation_state):
             log_err("IDF: invalid value({}) is provided".format(idf_isolation_state))
             return False
 
-        if self.switch_type and self.switch_type != "SpineRouter":
-            log_debug("DeviceGlobalCfgMgr:: Skipping IDF isolation configuration on Switch type: %s" % self.switch_type)
+        if self.switch_role and self.switch_role != "SpineRouter":
+            log_debug("DeviceGlobalCfgMgr:: Skipping IDF isolation configuration on %s" % self.switch_role)
             return True
 
         cmd = "\n"