merge of ovs L2 branch

6 files changed, 76 insertions, 16 deletions

diff --git a/nova/compute/manager.py b/nova/compute/manager.py
index 753240614..863e6bc18 100644
--- a/nova/compute/manager.py
+++ b/nova/compute/manager.py
@@ -293,7 +293,7 @@ class ComputeManager(manager.SchedulerDependentManager):
                 network_info = self.network_api.allocate_for_instance(context,
                                                          instance, vpn=is_vpn)
                 LOG.debug(_("instance network_info: |%s|"), network_info)
-                self.driver.setup_vif_network(context, instance, network_info)
+                self.driver.setup_vif_network(context, instance)
             else:
                 # TODO(tr3buchet) not really sure how this should be handled.
                 # virt requires network_info to be passed in but stub_network
@@ -348,7 +348,10 @@ class ComputeManager(manager.SchedulerDependentManager):
                   {'action_str': action_str, 'instance_id': instance_id},
                   context=context)
 
+        network_info = None
         if not FLAGS.stub_network:
+            network_info = self.network_api.get_instance_nw_info(context,
+                                                                instance)
             self.network_api.deallocate_for_instance(context, instance)
 
         volumes = instance.get('volumes') or []
@@ -360,7 +363,7 @@ class ComputeManager(manager.SchedulerDependentManager):
             self.db.instance_destroy(context, instance_id)
             raise exception.Error(_('trying to destroy already destroyed'
                                     ' instance: %s') % instance_id)
-        self.driver.destroy(instance)
+        self.driver.destroy(instance,network_info)
 
         if action_str == 'Terminating':
             terminate_volumes(self.db, context, instance_id)
@@ -406,7 +409,9 @@ class ComputeManager(manager.SchedulerDependentManager):
 
         self._update_state(context, instance_id, power_state.BUILDING)
 
-        self.driver.destroy(instance_ref)
+        network_info = self.network_api.get_instance_nw_info(context,
+                                                        instance_ref)
+        self.driver.destroy(instance_ref,network_info)
         image_ref = kwargs.get('image_ref')
         instance_ref.image_ref = image_ref
         instance_ref.injected_files = kwargs.get('injected_files', [])
@@ -666,7 +671,10 @@ class ComputeManager(manager.SchedulerDependentManager):
         """Destroys the source instance."""
         context = context.elevated()
         instance_ref = self.db.instance_get(context, instance_id)
-        self.driver.destroy(instance_ref)
+
+        network_info = self.network_api.get_instance_nw_info(context,
+                                                        instance_ref)
+        self.driver.destroy(instance_ref,network_info)
         usage_info = utils.usage_from_instance(instance_ref)
         notifier_api.notify('compute.%s' % self.host,
                             'compute.instance.resize.confirm',
@@ -685,7 +693,9 @@ class ComputeManager(manager.SchedulerDependentManager):
         instance_ref = self.db.instance_get(context, instance_id)
         migration_ref = self.db.migration_get(context, migration_id)
 
-        self.driver.destroy(instance_ref)
+        network_info = self.network_api.get_instance_nw_info(context,
+                                                        instance_ref)
+        self.driver.destroy(instance_ref,network_info)
         topic = self.db.queue_get_for(context, FLAGS.compute_topic,
                 instance_ref['host'])
         rpc.cast(context, topic,
diff --git a/nova/network/manager.py b/nova/network/manager.py
index 0689759d7..b64afae5c 100644
--- a/nova/network/manager.py
+++ b/nova/network/manager.py
@@ -351,6 +351,8 @@ class NetworkManager(manager.SchedulerDependentManager):
         networks = self.db.network_get_all(context)
 
         # return only networks which are not vlan networks and have host set
+        for n in networks:
+            print "net: host = %s vlan = %s" % (n['host'],n['vlan'])
         return [network for network in networks if
                 not network['vlan'] and network['host']]
 
diff --git a/nova/virt/libvirt.xml.template b/nova/virt/libvirt.xml.template
index ea27e5fd7..efcb96d15 100644
--- a/nova/virt/libvirt.xml.template
+++ b/nova/virt/libvirt.xml.template
@@ -92,13 +92,13 @@
 #end if
 
 #for $nic in $nics
-    #if $vif_type='ethernet'
+    #if $vif_type=='ethernet'
         <interface type='ethernet'>
             <target dev='${nic.name}' />
             <mac address='${nic.mac_address}' />
             <script path='${nic.script}' />
         </interface>
-    #else if $vif_type='802.1Qbh'
+    #else if $vif_type=='802.1Qbh'
         <interface type='direct'>
              <mac address=${nic.mac_address}/>
              <source dev=${nic.device_name} mode='private'/>
diff --git a/nova/virt/libvirt/connection.py b/nova/virt/libvirt/connection.py
index 15ad85176..36a6d62fe 100644
--- a/nova/virt/libvirt/connection.py
+++ b/nova/virt/libvirt/connection.py
@@ -261,11 +261,13 @@ class LibvirtConnection(driver.ComputeDriver):
 
     def setup_vif_network(self, ctxt, instance_id):
         """Set up VIF networking on the host."""
-        networks = db.network_get_all_by_instance(ctxt, instance_id)
-        for network in networks:
-            self.vif_driver.plug(network)
+        # FIXME: this is dying because DB has no networks for instances
+        #networks = db.network_get_all_by_instance(ctxt, instance_id)
+        #for network in networks:
+        #    self.vif_driver.plug(network)
+        pass
 
-    def destroy(self, instance, cleanup=True):
+    def destroy(self, instance, network_info, cleanup=True):
         instance_name = instance['name']
 
         try:
@@ -309,6 +311,14 @@ class LibvirtConnection(driver.ComputeDriver):
                             locals())
                 raise
 
+            try:
+                for (network, mapping) in network_info:
+                            self.vif_driver.unplug(instance, network, mapping)
+            except:
+                LOG.warning("Failed while unplugging vif of instance '%s'" % \
+                    instance['name'])
+                raise
+
         def _wait_for_destroy():
             """Called at an interval until the VM is gone."""
             instance_name = instance['name']
@@ -890,9 +900,12 @@ class LibvirtConnection(driver.ComputeDriver):
             address = mapping['ips'][0]['ip']
             netmask = mapping['ips'][0]['netmask']
             address_v6 = None
+            gateway_v6 = None
+            netmask_v6 = None
             if FLAGS.use_ipv6:
                 address_v6 = mapping['ip6s'][0]['ip']
                 netmask_v6 = mapping['ip6s'][0]['netmask']
+                gateway_v6 = mapping['gateway6']
             net_info = {'name': 'eth%d' % ifc_num,
                    'address': address,
                    'netmask': netmask,
@@ -900,7 +913,7 @@ class LibvirtConnection(driver.ComputeDriver):
                    'broadcast': mapping['broadcast'],
                    'dns': mapping['dns'],
                    'address_v6': address_v6,
-                   'gateway6': mapping['gateway6'],
+                   'gateway6': gateway_v6,
                    'netmask_v6': netmask_v6}
             nets.append(net_info)
 
diff --git a/nova/virt/libvirt/vif.py b/nova/virt/libvirt/vif.py
index 50c2d444c..8ce1f1f7e 100644
--- a/nova/virt/libvirt/vif.py
+++ b/nova/virt/libvirt/vif.py
@@ -1,6 +1,7 @@
 # vim: tabstop=4 shiftwidth=4 softtabstop=4
 
 # Copyright (C) 2011 Midokura KK
+# Copyright (C) 2011 Nicira, Inc
 # All Rights Reserved.
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
@@ -20,6 +21,7 @@
 from nova import flags
 from nova.network import linux_net
 from nova.virt.libvirt import netutils
+from nova import utils
 from nova.virt.vif import VIFDriver
 
 FLAGS = flags.FLAGS
@@ -74,7 +76,7 @@ class LibvirtBridge(LibvirtVIF):
 
         return result
 
-    
+
 class LibvirtBridgeDriver(VIFDriver, LibvirtBridge):
     """VIF driver for Linux bridge."""
 
@@ -83,7 +85,7 @@ class LibvirtBridgeDriver(VIFDriver, LibvirtBridge):
         linux_net.ensure_bridge(network['bridge'],
                                 network['bridge_interface'])
 
-    def unplug(self, network):
+    def unplug(self, instance, network, mapping):
         pass
 
 
@@ -95,5 +97,38 @@ class LibvirtVlanBridgeDriver(VIFDriver, LibvirtBridge):
         linux_net.ensure_vlan_bridge(network['vlan'], network['bridge'],
                                      network['bridge_interface'])
 
-    def unplug(self, network):
+    def unplug(self, instance, network, mapping):
         pass
+
+class LibvirtOpenVswitchDriver(VIFDriver):
+    """VIF driver for Open vSwitch."""
+
+    def get_configurations(self, instance, network, mapping):
+        vif_id = str(instance['id']) + "-" + str(network['id'])
+        dev = "tap-%s" % vif_id
+        utils.execute('sudo','ip','tuntap','add', dev, 'mode','tap')
+        utils.execute('sudo','ip','link','set', dev, 'up')
+        utils.execute('sudo', 'ovs-vsctl','--', '--may-exist', 'add-port',
+           FLAGS.flat_network_bridge, dev,
+           '--', 'set', 'Interface', dev, "external-ids:iface-id=%s" % vif_id,
+           '--', 'set', 'Interface', dev, "external-ids:iface-status=active",
+           '--', 'set', 'Interface', dev, "external-ids:attached-mac=%s" % \
+                mapping['mac'])
+
+        result = {
+            'script': '',
+            'name': dev,
+            'mac_address' : mapping['mac']
+        }
+        print "using result = %s" % str(result)
+        return result
+
+
+    def plug(self, network):
+        pass
+
+    def unplug(self, instance, network, mapping):
+        vif_id = str(instance['id']) + "-" + str(network['id'])
+        dev = "tap-%s" % vif_id
+        utils.execute('sudo', 'ovs-vsctl','del-port', FLAGS.flat_network_bridge, dev)
+        utils.execute('sudo','ip','link','delete', dev)
diff --git a/nova/virt/xenapi_conn.py b/nova/virt/xenapi_conn.py
index cd4dc1b60..09914bc1c 100644
--- a/nova/virt/xenapi_conn.py
+++ b/nova/virt/xenapi_conn.py
@@ -224,7 +224,7 @@ class XenAPIConnection(driver.ComputeDriver):
         """
         self._vmops.inject_file(instance, b64_path, b64_contents)
 
-    def destroy(self, instance):
+    def destroy(self, instance, network_info):
         """Destroy VM instance"""
         self._vmops.destroy(instance)