From 55798e6767d14ebec6c8c612a98299f4017aacd7 Mon Sep 17 00:00:00 2001
From: Dave Lapsley <dlapsley@nicira.com>
Date: Wed, 15 Feb 2012 18:04:23 -0500
Subject: [PATCH] Fix bug 933147 Security group trigger notifications.

Add a lightweight mechanism to allow security group trigger
notifications to be propagated to quantum security group handlers.

Add a global flag: "security_group_handler" to allow for runtime
selection of security group handler class.

Change-Id: I8a3768c26c97020071ad4e52d3a22d8898e72e9f
---
 nova/flags.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/nova/flags.py b/nova/flags.py
index af490e28..4277d1ed 100644
--- a/nova/flags.py
+++ b/nova/flags.py
@@ -451,6 +451,9 @@ global_opts = [
     cfg.StrOpt('volume_api_class',
                 default='nova.volume.api.API',
                 help='The volume API class to use'),
+    cfg.StrOpt('security_group_handler',
+               default='nova.network.quantum.sg.NullSecurityGroupHandler',
+               help='security group handler class')
     ]
 
 FLAGS.register_opts(global_opts)