Add control flag 'esd_auto_refresh' in configuration file

Set 'esd_auto_refresh = False' and use command
"neutron lbaas-l7policy-update esd_demo_3 --action REJECT"
to trigger ESD file refresh manually.

f5_openstack_agent/lbaasv2/drivers/bigip/agent_manager.py

@@ -134,6 +134,11 @@
         'password_cipher_mode',
         default=False,
         help='The flag indicating the password is plain text or not.'
+    ),
+    cfg.BoolOpt(
+        'esd_auto_refresh',
+        default=True,
+        help='Enable ESD file periodic refresh'
     )
 ]
 
@@ -499,8 +504,9 @@ def connect_driver(self, context):
 
     @periodic_task.periodic_task(spacing=PERIODIC_TASK_INTERVAL)
     def refresh_esd(self, context):
-        if self.lbdriver.esd:
-            LOG.debug("refresh esd files")
+        """Refresh ESD files."""
+        if self.lbdriver.esd and self.conf.esd_auto_refresh:
+            LOG.debug("refresh ESD files")
             self.lbdriver.init_esd()
 
     @periodic_task.periodic_task(spacing=PERIODIC_TASK_INTERVAL)

f5_openstack_agent/lbaasv2/drivers/bigip/icontrol_driver.py

@@ -2408,6 +2408,8 @@ def create_l7policy(self, l7policy, service):
     @is_operational
     def update_l7policy(self, old_l7policy, l7policy, service):
         """Update lb l7policy."""
+        if not self.conf.esd_auto_refresh:
+            self.init_esd()
         LOG.debug("Updating l7policy")
         self._common_service_handler(service)