Migrate network of an instance

In multi_host mode, floating ip(s) addr and NAT rules are still on
source node after resize/migrate instance. This patch fixes it up by
adding new methods in network.api to moving them to the destination
node.

Also adds the new methods to network/quantumv2/api.py. They do nothing
but pass for now.

This patch updates network RPC API to version 1.1

Fixes bug 1053344

Change-Id: If9f30050d37831f108ac4a1c8a018d820818f3b6

2 files changed, 18 insertions, 0 deletions

diff --git a/nova/db/api.py b/nova/db/api.py
index 4d91c5db9..82b7e895b 100644
--- a/nova/db/api.py
+++ b/nova/db/api.py
@@ -641,6 +641,11 @@ def instance_get_floating_address(context, instance_id):
     return IMPL.instance_get_floating_address(context, instance_id)
 
 
+def instance_floating_address_get_all(context, instance_uuid):
+    """Get all floating ip addresses of an instance"""
+    return IMPL.instance_floating_address_get_all(context, instance_uuid)
+
+
 def instance_get_all_hung_in_rebooting(context, reboot_window):
     """Get all instances stuck in a rebooting state."""
     return IMPL.instance_get_all_hung_in_rebooting(context, reboot_window)
diff --git a/nova/db/sqlalchemy/api.py b/nova/db/sqlalchemy/api.py
index 0946d0b19..a70488bd8 100644
--- a/nova/db/sqlalchemy/api.py
+++ b/nova/db/sqlalchemy/api.py
@@ -1738,6 +1738,19 @@ def instance_get_floating_address(context, instance_id):
     return floating_ips[0]['address']
 
 
+@require_context
+def instance_floating_address_get_all(context, instance_uuid):
+    fixed_ips = fixed_ip_get_by_instance(context, instance_uuid)
+
+    floating_ips = []
+    for fixed_ip in fixed_ips:
+        _floating_ips = floating_ip_get_by_fixed_ip_id(context,
+                                                    fixed_ip['id'])
+        floating_ips += _floating_ips
+
+    return floating_ips
+
+
 @require_admin_context
 def instance_get_all_hung_in_rebooting(context, reboot_window, session=None):
     reboot_window = (timeutils.utcnow() -