Add portgroups to support LAG interfaces - RPC

Ironic should be able to provide the requisite connectivity
information to the Neutron ML2 plugin to allow drivers to
provision the top-of-rack switch for the bare metal server.
The addition of portgroups in Ironic allows the concept of
link aggregation to be handled in Ironic in order to provide
support for cases where multiple interfaces on the bare metal
server connect to switch ports of a single LAG.

This commit includes changes to:
- the RPC API (to include portgroup methods)
- the RPC tests

Partial-bug: #1526403
DocImpact
Co-Authored-By: Jenny Moorehead (jenny.moorehead@sap.com)
Co-Authored-By: Will Stevenson (will.stevenson@sap.com)

Change-Id: Iac6355e615e57e6ed002facd6795c9ff06188998

1 files changed, 4 insertions, 0 deletions

diff --git a/ironic/conductor/task_manager.py b/ironic/conductor/task_manager.py
index b5bb119d3..aac3ca12c 100644
--- a/ironic/conductor/task_manager.py
+++ b/ironic/conductor/task_manager.py
@@ -204,7 +204,10 @@ class TaskManager(object):
             else:
                 self._debug_timer.restart()
                 self.node = objects.Node.get(context, node_id)
+
             self.ports = objects.Port.list_by_node_id(context, self.node.id)
+            self.portgroups = objects.Portgroup.list_by_node_id(context,
+                                                                self.node.id)
             self.driver = driver_factory.get_driver(driver_name or
                                                     self.node.driver)
 
@@ -313,6 +316,7 @@ class TaskManager(object):
         self.node = None
         self.driver = None
         self.ports = None
+        self.portgroups = None
         self.fsm = None
 
     def _thread_release_resources(self, t):