Add base class implementation for local users' passwords reset

sonic_platform_base/local_users_passwords_reset_base.py

@@ -0,0 +1,25 @@
+'''
+    local_users_passwords_reset_base.py
+
+    Abstract base class for implementing platform-specific
+    local users' passwords reset base functionality for SONiC
+'''
+
+
+class LocalUsersConfigurationResetBase(object):
+    """
+    Abstract base class for resetting local users' passwords on the switch
+    """
+    def should_trigger(self):
+        '''
+        define the condition to trigger
+        '''
+        # the condition to trigger start() method, the default implementation will be by checking if a long reboot press was detected.
+        raise NotImplementedError
+
+    def start(self):
+        '''
+        define the functionality
+        '''
+        # the implementation of deleting non-default users and restoring original passwords for default users and expiring them
+        raise NotImplementedError