trunk merge

58 files changed, 634 insertions, 420 deletions

diff --git a/Authors b/Authors
index 0e5931462..b216873df 100644
--- a/Authors
+++ b/Authors
@@ -64,6 +64,7 @@ Kirill Shileev <kshileev@gmail.com>
 Koji Iida <iida.koji@lab.ntt.co.jp>
 Lorin Hochstein <lorin@isi.edu>
 Lvov Maxim <usrleon@gmail.com>
+Mandell Degerness <mdegerne@gmail.com>
 Mark Washenberger <mark.washenberger@rackspace.com>
 Masanori Itoh <itoumsn@nttdata.co.jp>
 Matt Dietz <matt.dietz@rackspace.com>
diff --git a/bin/nova-ajax-console-proxy b/bin/nova-ajax-console-proxy
index 21cf68007..2329581a2 100755
--- a/bin/nova-ajax-console-proxy
+++ b/bin/nova-ajax-console-proxy
@@ -114,11 +114,11 @@ class AjaxConsoleProxy(object):
                 AjaxConsoleProxy.tokens[kwargs['token']] =  \
                     {'args': kwargs, 'last_activity': time.time()}
 
-        conn = rpc.Connection.instance(new=True)
-        consumer = rpc.TopicAdapterConsumer(
-                       connection=conn,
-                       proxy=TopicProxy,
-                       topic=FLAGS.ajax_console_proxy_topic)
+        conn = rpc.create_connection(new=True)
+        consumer = rpc.create_consumer(
+                       conn,
+                       FLAGS.ajax_console_proxy_topic,
+                       TopicProxy)
 
         def delete_expired_tokens():
             now = time.time()
diff --git a/bin/nova-manage b/bin/nova-manage
index 807753a2e..f272351c2 100755
--- a/bin/nova-manage
+++ b/bin/nova-manage
@@ -56,6 +56,7 @@
 import gettext
 import glob
 import json
+import math
 import netaddr
 import os
 import sys
@@ -694,7 +695,17 @@ class NetworkCommands(object):
         if not num_networks:
             num_networks = FLAGS.num_networks
         if not network_size:
-            network_size = FLAGS.network_size
+            fixnet = netaddr.IPNetwork(fixed_range_v4)
+            each_subnet_size = fixnet.size / int(num_networks)
+            if each_subnet_size > FLAGS.network_size:
+                network_size = FLAGS.network_size
+                subnet = 32 - int(math.log(network_size, 2))
+                oversize_msg = _('Subnet(s) too large, defaulting to /%s.'
+                                 '  To override, specify network_size flag.'
+                                ) % subnet
+                print oversize_msg
+            else:
+                network_size = fixnet.size
         if not multi_host:
             multi_host = FLAGS.multi_host
         else:
diff --git a/nova/api/direct.py b/nova/api/direct.py
index 993815fc7..139c46d63 100644
--- a/nova/api/direct.py
+++ b/nova/api/direct.py
@@ -48,7 +48,6 @@ import nova.api.openstack.wsgi
 # Global storage for registering modules.
 ROUTES = {}
 
-
 def register_service(path, handle):
     """Register a service handle at a given path.
 
@@ -296,8 +295,8 @@ class ServiceWrapper(object):
               'application/json': nova.api.openstack.wsgi.JSONDictSerializer(),
             }[content_type]
             return serializer.serialize(result)
-        except:
-            raise exception.Error("returned non-serializable type: %s"
+        except Exception, e:
+            raise exception.Error(_("Returned non-serializable type: %s")
                                   % result)
 
 
diff --git a/nova/api/ec2/__init__.py b/nova/api/ec2/__init__.py
index af232edda..804e54ef9 100644
--- a/nova/api/ec2/__init__.py
+++ b/nova/api/ec2/__init__.py
@@ -147,7 +147,7 @@ class Authenticate(wsgi.Middleware):
         try:
             signature = req.params['Signature']
             access = req.params['AWSAccessKeyId']
-        except:
+        except KeyError, e:
             raise webob.exc.HTTPBadRequest()
 
         # Make a copy of args for authentication and signature verification.
@@ -211,7 +211,7 @@ class Requestify(wsgi.Middleware):
             for non_arg in non_args:
                 # Remove, but raise KeyError if omitted
                 args.pop(non_arg)
-        except:
+        except KeyError, e:
             raise webob.exc.HTTPBadRequest()
 
         LOG.debug(_('action: %s'), action)
diff --git a/nova/api/ec2/apirequest.py b/nova/api/ec2/apirequest.py
index 7d78c5cfa..9a3e55925 100644
--- a/nova/api/ec2/apirequest.py
+++ b/nova/api/ec2/apirequest.py
@@ -104,7 +104,7 @@ class APIRequest(object):
             for key in data.keys():
                 val = data[key]
                 el.appendChild(self._render_data(xml, key, val))
-        except:
+        except Exception:
             LOG.debug(data)
             raise
 
diff --git a/nova/api/openstack/__init__.py b/nova/api/openstack/__init__.py
index 9ab8aeb58..d6a98c2cd 100644
--- a/nova/api/openstack/__init__.py
+++ b/nova/api/openstack/__init__.py
@@ -170,7 +170,9 @@ class APIRouterV11(APIRouter):
 
     def _setup_routes(self, mapper):
         super(APIRouterV11, self)._setup_routes(mapper, '1.1')
+
         image_metadata_controller = image_metadata.create_resource()
+
         mapper.resource("image_meta", "metadata",
                         controller=image_metadata_controller,
                         parent_resource=dict(member_name='image',
@@ -181,7 +183,14 @@ class APIRouterV11(APIRouter):
                        action='update_all',
                        conditions={"method": ['PUT']})
 
-        mapper.resource("server_meta", "meta",
-                        controller=server_metadata.create_resource(),
+        server_metadata_controller = server_metadata.create_resource()
+
+        mapper.resource("server_meta", "metadata",
+                        controller=server_metadata_controller,
                         parent_resource=dict(member_name='server',
                         collection_name='servers'))
+
+        mapper.connect("metadata", "/servers/{server_id}/metadata",
+                       controller=server_metadata_controller,
+                       action='update_all',
+                       conditions={"method": ['PUT']})
diff --git a/nova/api/openstack/common.py b/nova/api/openstack/common.py
index efa4ab385..715b9e4a4 100644
--- a/nova/api/openstack/common.py
+++ b/nova/api/openstack/common.py
@@ -16,7 +16,7 @@
 #    under the License.
 
 import re
-from urlparse import urlparse
+import urlparse
 from xml.dom import minidom
 
 import webob
@@ -137,8 +137,8 @@ def get_id_from_href(href):
     if re.match(r'\d+$', str(href)):
         return int(href)
     try:
-        return int(urlparse(href).path.split('/')[-1])
-    except:
+        return int(urlparse.urlsplit(href).path.split('/')[-1])
+    except ValueError, e:
         LOG.debug(_("Error extracting id from href: %s") % href)
         raise ValueError(_('could not parse id from href'))
 
@@ -153,22 +153,17 @@ def remove_version_from_href(href):
     Returns: 'http://www.nova.com'
 
     """
-    try:
-        #removes the first instance that matches /v#.#/
-        new_href = re.sub(r'[/][v][0-9]+\.[0-9]+[/]', '/', href, count=1)
+    parsed_url = urlparse.urlsplit(href)
+    new_path = re.sub(r'^/v[0-9]+\.[0-9]+(/|$)', r'\1', parsed_url.path, count=1)
 
-        #if no version was found, try finding /v#.# at the end of the string
-        if new_href == href:
-            new_href = re.sub(r'[/][v][0-9]+\.[0-9]+$', '', href, count=1)
-    except:
-        LOG.debug(_("Error removing version from href: %s") % href)
-        msg = _('could not parse version from href')
+    if new_path == parsed_url.path:
+        msg = _('href %s does not contain version') % href
+        LOG.debug(msg)
         raise ValueError(msg)
 
-    if new_href == href:
-        msg = _('href does not contain version')
-        raise ValueError(msg)
-    return new_href
+    parsed_url = list(parsed_url)
+    parsed_url[2] = new_path
+    return urlparse.urlunsplit(parsed_url)
 
 
 def get_version_from_href(href):
@@ -196,7 +191,17 @@ def get_version_from_href(href):
     return version
 
 
-class MetadataXMLDeserializer(wsgi.MetadataXMLDeserializer):
+class MetadataXMLDeserializer(wsgi.XMLDeserializer):
+
+    def extract_metadata(self, metadata_node):
+        """Marshal the metadata attribute of a parsed request"""
+        if metadata_node is None:
+            return {}
+        metadata = {}
+        for meta_node in self.find_children_named(metadata_node, "meta"):
+            key = meta_node.getAttribute("key")
+            metadata[key] = self.extract_text(meta_node)
+        return metadata
 
     def _extract_metadata_container(self, datastring):
         dom = minidom.parseString(datastring)
@@ -247,7 +252,7 @@ class MetadataXMLSerializer(wsgi.XMLDictSerializer):
         container_node = self.meta_list_to_xml(xml_doc, items)
         xml_doc.appendChild(container_node)
         self._add_xmlns(container_node)
-        return xml_doc.toprettyxml(indent='    ', encoding='UTF-8')
+        return xml_doc.toxml('UTF-8')
 
     def index(self, metadata_dict):
         return self._meta_list_to_xml_string(metadata_dict)
@@ -264,7 +269,7 @@ class MetadataXMLSerializer(wsgi.XMLDictSerializer):
         item_node = self._meta_item_to_xml(xml_doc, item_key, item_value)
         xml_doc.appendChild(item_node)
         self._add_xmlns(item_node)
-        return xml_doc.toprettyxml(indent='    ', encoding='UTF-8')
+        return xml_doc.toxml('UTF-8')
 
     def show(self, meta_item_dict):
         return self._meta_item_to_xml_string(meta_item_dict['meta'])
diff --git a/nova/api/openstack/create_instance_helper.py b/nova/api/openstack/create_instance_helper.py
index 333994fcc..2a8e7fd7e 100644
--- a/nova/api/openstack/create_instance_helper.py
+++ b/nova/api/openstack/create_instance_helper.py
@@ -29,6 +29,7 @@ from nova import quota
 from nova import utils
 
 from nova.compute import instance_types
+from nova.api.openstack import common
 from nova.api.openstack import wsgi
 
 
@@ -293,7 +294,7 @@ class CreateInstanceHelper(object):
         return password
 
 
-class ServerXMLDeserializer(wsgi.MetadataXMLDeserializer):
+class ServerXMLDeserializer(wsgi.XMLDeserializer):
     """
     Deserializer to handle xml-formatted server create requests.
 
@@ -301,6 +302,8 @@ class ServerXMLDeserializer(wsgi.MetadataXMLDeserializer):
     and personality attributes
     """
 
+    metadata_deserializer = common.MetadataXMLDeserializer()
+
     def action(self, string):
         dom = minidom.parseString(string)
         action_node = dom.childNodes[0]
@@ -329,7 +332,8 @@ class ServerXMLDeserializer(wsgi.MetadataXMLDeserializer):
             if value:
                 data[attribute] = value
         metadata_node = self.find_first_child_named(node, 'metadata')
-        data['metadata'] = self.extract_metadata(metadata_node)
+        metadata = self.metadata_deserializer.extract_metadata(metadata_node)
+        data['metadata'] = metadata
         return data
 
     def create(self, string):
@@ -350,7 +354,8 @@ class ServerXMLDeserializer(wsgi.MetadataXMLDeserializer):
                 server[attr] = server_node.getAttribute(attr)
 
         metadata_node = self.find_first_child_named(server_node, "metadata")
-        server["metadata"] = self.extract_metadata(metadata_node)
+        server["metadata"] = self.metadata_deserializer.extract_metadata(
+            metadata_node)
 
         server["personality"] = self._extract_personality(server_node)
 
diff --git a/nova/api/openstack/images.py b/nova/api/openstack/images.py
index 0834adfa5..c76738d30 100644
--- a/nova/api/openstack/images.py
+++ b/nova/api/openstack/images.py
@@ -116,13 +116,17 @@ class ControllerV10(Controller):
 
         try:
             image_name = image["name"]
-            server_id = image["serverId"]
+            instance_id = image["serverId"]
         except KeyError as missing_key:
             msg = _("Image entity requires %s") % missing_key
             raise webob.exc.HTTPBadRequest(explanation=msg)
 
         context = req.environ["nova.context"]
-        image = self._compute_service.snapshot(context, server_id, image_name)
+        props = {'instance_id': instance_id}
+        image = self._compute_service.snapshot(context,
+                                          instance_id,
+                                          image_name,
+                                          extra_properties=props)
 
         return dict(image=self.get_builder(req).build(image, detail=True))
 
diff --git a/nova/api/openstack/server_metadata.py b/nova/api/openstack/server_metadata.py
index d4f42bbf5..b0b014f86 100644
--- a/nova/api/openstack/server_metadata.py
+++ b/nova/api/openstack/server_metadata.py
@@ -18,6 +18,7 @@
 from webob import exc
 
 from nova import compute
+from nova.api.openstack import common
 from nova.api.openstack import wsgi
 from nova import exception
 from nova import quota
@@ -31,36 +32,37 @@ class Controller(object):
         super(Controller, self).__init__()
 
     def _get_metadata(self, context, server_id):
-        metadata = self.compute_api.get_instance_metadata(context, server_id)
+        try:
+            meta = self.compute_api.get_instance_metadata(context, server_id)
+        except exception.InstanceNotFound:
+            msg = _('Server does not exist')
+            raise exc.HTTPNotFound(explanation=msg)
+
         meta_dict = {}
-        for key, value in metadata.iteritems():
+        for key, value in meta.iteritems():
             meta_dict[key] = value
-        return dict(metadata=meta_dict)
-
-    def _check_body(self, body):
-        if body == None or body == "":
-            expl = _('No Request Body')
-            raise exc.HTTPBadRequest(explanation=expl)
+        return meta_dict
 
     def index(self, req, server_id):
         """ Returns the list of metadata for a given instance """
         context = req.environ['nova.context']
-        try:
-            return self._get_metadata(context, server_id)
-        except exception.InstanceNotFound:
-            msg = _('Server %(server_id)s does not exist') % locals()
-            raise exc.HTTPNotFound(explanation=msg)
+        return {'metadata': self._get_metadata(context, server_id)}
 
     def create(self, req, server_id, body):
-        self._check_body(body)
+        try:
+            metadata = body['metadata']
+        except (KeyError, TypeError):
+            msg = _("Malformed request body")
+            raise exc.HTTPBadRequest(explanation=msg)
+
         context = req.environ['nova.context']
-        metadata = body.get('metadata')
+
         try:
             self.compute_api.update_or_create_instance_metadata(context,
                                                                 server_id,
                                                                 metadata)
         except exception.InstanceNotFound:
-            msg = _('Server %(server_id)s does not exist') % locals()
+            msg = _('Server does not exist')
             raise exc.HTTPNotFound(explanation=msg)
 
         except quota.QuotaError as error:
@@ -69,51 +71,80 @@ class Controller(object):
         return body
 
     def update(self, req, server_id, id, body):
-        self._check_body(body)
-        context = req.environ['nova.context']
-        if not id in body:
+        try:
+            meta_item = body['meta']
+        except (TypeError, KeyError):
+            expl = _('Malformed request body')
+            raise exc.HTTPBadRequest(explanation=expl)
+
+        try:
+            meta_value = meta_item.pop(id)
+        except (AttributeError, KeyError):
             expl = _('Request body and URI mismatch')
             raise exc.HTTPBadRequest(explanation=expl)
-        if len(body) > 1:
+
+        if len(meta_item) > 0:
             expl = _('Request body contains too many items')
             raise exc.HTTPBadRequest(explanation=expl)
+
+        context = req.environ['nova.context']
+        self._set_instance_metadata(context, server_id, meta_item)
+
+        return {'meta': {id: meta_value}}
+
+    def update_all(self, req, server_id, body):
+        try:
+            metadata = body['metadata']
+        except (TypeError, KeyError):
+            expl = _('Malformed request body')
+            raise exc.HTTPBadRequest(explanation=expl)
+
+        context = req.environ['nova.context']
+        self._set_instance_metadata(context, server_id, metadata)
+
+        return {'metadata': metadata}
+
+    def _set_instance_metadata(self, context, server_id, metadata):
         try:
             self.compute_api.update_or_create_instance_metadata(context,
                                                                 server_id,
-                                                                body)
+                                                                metadata)
         except exception.InstanceNotFound:
-            msg = _('Server %(server_id)s does not exist') % locals()
+            msg = _('Server does not exist')
             raise exc.HTTPNotFound(explanation=msg)
 
+        except ValueError:
+            msg = _("Malformed request body")
+            raise exc.HTTPBadRequest(explanation=msg)
+
         except quota.QuotaError as error:
             self._handle_quota_error(error)
 
-        return body
-
     def show(self, req, server_id, id):
         """ Return a single metadata item """
         context = req.environ['nova.context']
-        try:
-            data = self._get_metadata(context, server_id)
-        except exception.InstanceNotFound:
-            msg = _('Server %(server_id)s does not exist') % locals()
-            raise exc.HTTPNotFound(explanation=msg)
+        data = self._get_metadata(context, server_id)
 
         try:
-            return {id: data['metadata'][id]}
+            return {'meta': {id: data[id]}}
         except KeyError:
-            msg = _("metadata item %s was not found" % (id))
+            msg = _("Metadata item was not found")
             raise exc.HTTPNotFound(explanation=msg)
 
     def delete(self, req, server_id, id):
         """ Deletes an existing metadata """
         context = req.environ['nova.context']
+
+        metadata = self._get_metadata(context, server_id)
+
         try:
-            self.compute_api.delete_instance_metadata(context, server_id, id)
-        except exception.InstanceNotFound:
-            msg = _('Server %(server_id)s does not exist') % locals()
+            meta_key = metadata[id]
+        except KeyError:
+            msg = _("Metadata item was not found")
             raise exc.HTTPNotFound(explanation=msg)
 
+        self.compute_api.delete_instance_metadata(context, server_id, meta_key)
+
     def _handle_quota_error(self, error):
         """Reraise quota errors as api-specific http exceptions."""
         if error.code == "MetadataLimitExceeded":
@@ -122,10 +153,16 @@ class Controller(object):
 
 
 def create_resource():
-    body_serializers = {
-        'application/xml': wsgi.XMLDictSerializer(xmlns=wsgi.XMLNS_V11),
+    headers_serializer = common.MetadataHeadersSerializer()
+
+    body_deserializers = {
+        'application/xml': common.MetadataXMLDeserializer(),
     }
 
-    serializer = wsgi.ResponseSerializer(body_serializers)
+    body_serializers = {
+        'application/xml': common.MetadataXMLSerializer(),
+    }
+    serializer = wsgi.ResponseSerializer(body_serializers, headers_serializer)
+    deserializer = wsgi.RequestDeserializer(body_deserializers)
 
-    return wsgi.Resource(Controller(), serializer=serializer)
+    return wsgi.Resource(Controller(), deserializer, serializer)
diff --git a/nova/api/openstack/servers.py b/nova/api/openstack/servers.py
index d17714371..3930982dc 100644
--- a/nova/api/openstack/servers.py
+++ b/nova/api/openstack/servers.py
@@ -290,7 +290,7 @@ class Controller(object):
         context = req.environ['nova.context']
         try:
             self.compute_api.lock(context, id)
-        except:
+        except Exception:
             readable = traceback.format_exc()
             LOG.exception(_("Compute.api::lock %s"), readable)
             raise exc.HTTPUnprocessableEntity()
@@ -306,7 +306,7 @@ class Controller(object):
         context = req.environ['nova.context']
         try:
             self.compute_api.unlock(context, id)
-        except:
+        except Exception:
             readable = traceback.format_exc()
             LOG.exception(_("Compute.api::unlock %s"), readable)
             raise exc.HTTPUnprocessableEntity()
@@ -321,7 +321,7 @@ class Controller(object):
         context = req.environ['nova.context']
         try:
             self.compute_api.get_lock(context, id)
-        except:
+        except Exception:
             readable = traceback.format_exc()
             LOG.exception(_("Compute.api::get_lock %s"), readable)
             raise exc.HTTPUnprocessableEntity()
@@ -336,7 +336,7 @@ class Controller(object):
         context = req.environ['nova.context']
         try:
             self.compute_api.reset_network(context, id)
-        except:
+        except Exception:
             readable = traceback.format_exc()
             LOG.exception(_("Compute.api::reset_network %s"), readable)
             raise exc.HTTPUnprocessableEntity()
@@ -351,7 +351,7 @@ class Controller(object):
         context = req.environ['nova.context']
         try:
             self.compute_api.inject_network_info(context, id)
-        except:
+        except Exception:
             readable = traceback.format_exc()
             LOG.exception(_("Compute.api::inject_network_info %s"), readable)
             raise exc.HTTPUnprocessableEntity()
@@ -363,7 +363,7 @@ class Controller(object):
         ctxt = req.environ['nova.context']
         try:
             self.compute_api.pause(ctxt, id)
-        except:
+        except Exception:
             readable = traceback.format_exc()
             LOG.exception(_("Compute.api::pause %s"), readable)
             raise exc.HTTPUnprocessableEntity()
@@ -375,7 +375,7 @@ class Controller(object):
         ctxt = req.environ['nova.context']
         try:
             self.compute_api.unpause(ctxt, id)
-        except:
+        except Exception:
             readable = traceback.format_exc()
             LOG.exception(_("Compute.api::unpause %s"), readable)
             raise exc.HTTPUnprocessableEntity()
@@ -387,7 +387,7 @@ class Controller(object):
         context = req.environ['nova.context']
         try:
             self.compute_api.suspend(context, id)
-        except:
+        except Exception:
             readable = traceback.format_exc()
             LOG.exception(_("compute.api::suspend %s"), readable)
             raise exc.HTTPUnprocessableEntity()
@@ -399,7 +399,7 @@ class Controller(object):
         context = req.environ['nova.context']
         try:
             self.compute_api.resume(context, id)
-        except:
+        except Exception:
             readable = traceback.format_exc()
             LOG.exception(_("compute.api::resume %s"), readable)
             raise exc.HTTPUnprocessableEntity()
@@ -420,7 +420,7 @@ class Controller(object):
         context = req.environ["nova.context"]
         try:
             self.compute_api.rescue(context, id)
-        except:
+        except Exception:
             readable = traceback.format_exc()
             LOG.exception(_("compute.api::rescue %s"), readable)
             raise exc.HTTPUnprocessableEntity()
@@ -432,7 +432,7 @@ class Controller(object):
         context = req.environ["nova.context"]
         try:
             self.compute_api.unrescue(context, id)
-        except:
+        except Exception:
             readable = traceback.format_exc()
             LOG.exception(_("compute.api::unrescue %s"), readable)
             raise exc.HTTPUnprocessableEntity()
diff --git a/nova/cloudpipe/pipelib.py b/nova/cloudpipe/pipelib.py
index 521525205..2c4673f9e 100644
--- a/nova/cloudpipe/pipelib.py
+++ b/nova/cloudpipe/pipelib.py
@@ -141,15 +141,12 @@ class CloudPipe(object):
         try:
             result = cloud._gen_key(context, context.user_id, key_name)
             private_key = result['private_key']
-            try:
-                key_dir = os.path.join(FLAGS.keys_path, context.user_id)
-                if not os.path.exists(key_dir):
-                    os.makedirs(key_dir)
-                key_path = os.path.join(key_dir, '%s.pem' % key_name)
-                with open(key_path, 'w') as f:
-                    f.write(private_key)
-            except:
-                pass
-        except exception.Duplicate:
+            key_dir = os.path.join(FLAGS.keys_path, context.user_id)
+            if not os.path.exists(key_dir):
+                os.makedirs(key_dir)
+            key_path = os.path.join(key_dir, '%s.pem' % key_name)
+            with open(key_path, 'w') as f:
+                f.write(private_key)
+        except (exception.Duplicate, os.error, IOError):
             pass
         return key_name
diff --git a/nova/compute/manager.py b/nova/compute/manager.py
index 843f6d490..69acf6e95 100644
--- a/nova/compute/manager.py
+++ b/nova/compute/manager.py
@@ -167,11 +167,12 @@ class ComputeManager(manager.SchedulerDependentManager):
                             'nova-compute restart.'), locals())
                 self.reboot_instance(context, instance['id'])
             elif drv_state == power_state.RUNNING:
-                try:  # Hyper-V and VMWareAPI drivers will raise and exception
+                # Hyper-V and VMWareAPI drivers will raise and exception
+                try:
                     self.driver.ensure_filtering_rules_for_instance(instance)
                 except NotImplementedError:
-                    LOG.warning(
-                       _('Hypervisor driver does not support firewall rules'))
+                    LOG.warning(_('Hypervisor driver does not '
+                            'support firewall rules'))
 
     def _update_state(self, context, instance_id, state=None):
         """Update the state of an instance from the driver info."""
@@ -747,7 +748,8 @@ class ComputeManager(manager.SchedulerDependentManager):
                 instance_ref['host'])
         rpc.cast(context, topic,
                 {'method': 'finish_revert_resize',
-                 'args': {'migration_id': migration_ref['id']},
+                 'args': {'instance_id': instance_ref['uuid'],
+                          'migration_id': migration_ref['id']},
                 })
 
     @exception.wrap_exception(notifier=notifier, publisher_id=publisher_id())
diff --git a/nova/db/sqlalchemy/api.py b/nova/db/sqlalchemy/api.py
index 4f1445217..ce12ba4e0 100644
--- a/nova/db/sqlalchemy/api.py
+++ b/nova/db/sqlalchemy/api.py
@@ -3178,8 +3178,9 @@ def instance_metadata_delete_all(context, instance_id):
 
 @require_context
 @require_instance_exists
-def instance_metadata_get_item(context, instance_id, key):
-    session = get_session()
+def instance_metadata_get_item(context, instance_id, key, session=None):
+    if not session:
+        session = get_session()
 
     meta_result = session.query(models.InstanceMetadata).\
                     filter_by(instance_id=instance_id).\
@@ -3205,7 +3206,7 @@ def instance_metadata_update_or_create(context, instance_id, metadata):
         try:
             meta_ref = instance_metadata_get_item(context, instance_id, key,
                                                         session)
-        except:
+        except exception.InstanceMetadataNotFound, e:
             meta_ref = models.InstanceMetadata()
         meta_ref.update({"key": key, "value": value,
                             "instance_id": instance_id,
@@ -3300,8 +3301,9 @@ def instance_type_extra_specs_delete(context, instance_type_id, key):
 
 
 @require_context
-def instance_type_extra_specs_get_item(context, instance_type_id, key):
-    session = get_session()
+def instance_type_extra_specs_get_item(context, instance_type_id, key, session=None):
+    if not session:
+        session = get_session()
 
     spec_result = session.query(models.InstanceTypeExtraSpecs).\
                     filter_by(instance_type_id=instance_type_id).\
@@ -3327,7 +3329,7 @@ def instance_type_extra_specs_update_or_create(context, instance_type_id,
                                                           instance_type_id,
                                                           key,
                                                           session)
-        except:
+        except exception.InstanceTypeExtraSpecsNotFound, e:
             spec_ref = models.InstanceTypeExtraSpecs()
         spec_ref.update({"key": key, "value": value,
                          "instance_type_id": instance_type_id,
diff --git a/nova/image/__init__.py b/nova/image/__init__.py
index a27d649d4..5447c8a3a 100644
--- a/nova/image/__init__.py
+++ b/nova/image/__init__.py
@@ -35,6 +35,7 @@ def _parse_image_ref(image_href):
 
     :param image_href: href of an image
     :returns: a tuple of the form (image_id, host, port)
+    :raises ValueError
 
     """
     o = urlparse(image_href)
@@ -72,7 +73,7 @@ def get_glance_client(image_href):
 
     try:
         (image_id, host, port) = _parse_image_ref(image_href)
-    except:
+    except ValueError:
         raise exception.InvalidImageRef(image_href=image_href)
     glance_client = GlanceClient(host, port)
     return (glance_client, image_id)
diff --git a/nova/test.py b/nova/test.py
index 549aa6fcf..5760d7a82 100644
--- a/nova/test.py
+++ b/nova/test.py
@@ -141,11 +141,9 @@ class TestCase(unittest.TestCase):
     def flags(self, **kw):
         """Override flag variables for a test."""
         for k, v in kw.iteritems():
-            if k in self.flag_overrides:
-                self.reset_flags()
-                raise Exception(
-                        'trying to override already overriden flag: %s' % k)
-            self.flag_overrides[k] = getattr(FLAGS, k)
+            # Store original flag value if it's not been overriden yet
+            if k not in self.flag_overrides:
+                self.flag_overrides[k] = getattr(FLAGS, k)
             setattr(FLAGS, k, v)
 
     def reset_flags(self):
diff --git a/nova/tests/api/openstack/__init__.py b/nova/tests/api/openstack/__init__.py
index bfb424afe..458434a81 100644
--- a/nova/tests/api/openstack/__init__.py
+++ b/nova/tests/api/openstack/__init__.py
@@ -22,14 +22,11 @@ import webob.dec
 from nova import test
 
 from nova import context
-from nova import flags
 from nova.api.openstack.limits import RateLimitingMiddleware
 from nova.api.openstack.common import limited
 from nova.tests.api.openstack import fakes
 from webob import Request
 
-FLAGS = flags.FLAGS
-
 
 @webob.dec.wsgify
 def simple_wsgi(req):
diff --git a/nova/tests/api/openstack/test_accounts.py b/nova/tests/api/openstack/test_accounts.py
index 89dbf5213..707a2599f 100644
--- a/nova/tests/api/openstack/test_accounts.py
+++ b/nova/tests/api/openstack/test_accounts.py
@@ -18,17 +18,12 @@ import json
 
 import webob
 
-from nova import flags
 from nova import test
 from nova.api.openstack import accounts
 from nova.auth.manager import User
 from nova.tests.api.openstack import fakes
 
 
-FLAGS = flags.FLAGS
-FLAGS.verbose = True
-
-
 def fake_init(self):
     self.manager = fakes.FakeAuthManager()
 
@@ -40,7 +35,7 @@ def fake_admin_check(self, req):
 class AccountsTest(test.TestCase):
     def setUp(self):
         super(AccountsTest, self).setUp()
-        self.flags(allow_admin_api=True)
+        self.flags(verbose=True, allow_admin_api=True)
         self.stubs.Set(accounts.Controller, '__init__',
                        fake_init)
         self.stubs.Set(accounts.Controller, '_check_admin',
diff --git a/nova/tests/api/openstack/test_adminapi.py b/nova/tests/api/openstack/test_adminapi.py
index b83de40cf..c9e66dc4c 100644
--- a/nova/tests/api/openstack/test_adminapi.py
+++ b/nova/tests/api/openstack/test_adminapi.py
@@ -18,12 +18,9 @@
 
 import webob
 
-from nova import flags
 from nova import test
 from nova.tests.api.openstack import fakes
 
-FLAGS = flags.FLAGS
-
 
 class AdminAPITest(test.TestCase):
 
@@ -31,7 +28,7 @@ class AdminAPITest(test.TestCase):
         super(AdminAPITest, self).setUp()
         fakes.stub_out_networking(self.stubs)
         fakes.stub_out_rate_limiting(self.stubs)
-        self.allow_admin = FLAGS.allow_admin_api
+        self.flags(verbose=True)
 
     def test_admin_enabled(self):
         self.flags(allow_admin_api=True)
diff --git a/nova/tests/api/openstack/test_common.py b/nova/tests/api/openstack/test_common.py
index 0b76841f0..5a6e43579 100644
--- a/nova/tests/api/openstack/test_common.py
+++ b/nova/tests/api/openstack/test_common.py
@@ -323,14 +323,10 @@ class MetadataXMLSerializationTest(test.TestCase):
 
         expected = minidom.parseString("""
             <metadata xmlns="http://docs.openstack.org/compute/api/v1.1">
-                <meta key="three">
-                    four
-                </meta>
-                <meta key="one">
-                    two
-                </meta>
+                <meta key="three">four</meta>
+                <meta key="one">two</meta>
             </metadata>
-        """.replace("  ", ""))
+        """.replace("  ", "").replace("\n", ""))
 
         self.assertEqual(expected.toxml(), actual.toxml())
 
@@ -346,11 +342,9 @@ class MetadataXMLSerializationTest(test.TestCase):
 
         expected = minidom.parseString("""
             <metadata xmlns="http://docs.openstack.org/compute/api/v1.1">
-                <meta key="None">
-                    None
-                </meta>
+                <meta key="None">None</meta>
             </metadata>
-        """.replace("  ", ""))
+        """.replace("  ", "").replace("\n", ""))
 
         self.assertEqual(expected.toxml(), actual.toxml())
 
@@ -366,11 +360,9 @@ class MetadataXMLSerializationTest(test.TestCase):
 
         expected = minidom.parseString(u"""
             <metadata xmlns="http://docs.openstack.org/compute/api/v1.1">
-                <meta key="three">
-                    Jos\xe9
-                </meta>
+                <meta key="three">Jos\xe9</meta>
             </metadata>
-        """.encode("UTF-8").replace("  ", ""))
+        """.encode("UTF-8").replace("  ", "").replace("\n", ""))
 
         self.assertEqual(expected.toxml(), actual.toxml())
 
@@ -385,10 +377,9 @@ class MetadataXMLSerializationTest(test.TestCase):
         actual = minidom.parseString(output.replace("  ", ""))
 
         expected = minidom.parseString("""
-            <meta xmlns="http://docs.openstack.org/compute/api/v1.1" key="one">
-                two
-            </meta>
-        """.replace("  ", ""))
+            <meta xmlns="http://docs.openstack.org/compute/api/v1.1"
+                 key="one">two</meta>
+        """.replace("  ", "").replace("\n", ""))
 
         self.assertEqual(expected.toxml(), actual.toxml())
 
@@ -405,14 +396,10 @@ class MetadataXMLSerializationTest(test.TestCase):
 
         expected = minidom.parseString("""
             <metadata xmlns="http://docs.openstack.org/compute/api/v1.1">
-                <meta key="key6">
-                    value6
-                </meta>
-                <meta key="key4">
-                    value4
-                </meta>
+                <meta key="key6">value6</meta>
+                <meta key="key4">value4</meta>
             </metadata>
-        """.replace("  ", ""))
+        """.replace("  ", "").replace("\n", ""))
 
         self.assertEqual(expected.toxml(), actual.toxml())
 
@@ -427,10 +414,9 @@ class MetadataXMLSerializationTest(test.TestCase):
         actual = minidom.parseString(output.replace("  ", ""))
 
         expected = minidom.parseString("""
-            <meta xmlns="http://docs.openstack.org/compute/api/v1.1" key="one">
-                two
-            </meta>
-        """.replace("  ", ""))
+            <meta xmlns="http://docs.openstack.org/compute/api/v1.1"
+                 key="one">two</meta>
+        """.replace("  ", "").replace("\n", ""))
 
         self.assertEqual(expected.toxml(), actual.toxml())
 
@@ -448,17 +434,11 @@ class MetadataXMLSerializationTest(test.TestCase):
 
         expected = minidom.parseString("""
             <metadata xmlns="http://docs.openstack.org/compute/api/v1.1">
-                <meta key="key2">
-                    value2
-                </meta>
-                <meta key="key9">
-                    value9
-                </meta>
-                <meta key="key1">
-                    value1
-                </meta>
+                <meta key="key2">value2</meta>
+                <meta key="key9">value9</meta>
+                <meta key="key1">value1</meta>
             </metadata>
-        """.replace("  ", ""))
+        """.replace("  ", "").replace("\n", ""))
 
         self.assertEqual(expected.toxml(), actual.toxml())
 
diff --git a/nova/tests/api/openstack/test_extensions.py b/nova/tests/api/openstack/test_extensions.py
index 47c37225c..409fa0e71 100644
--- a/nova/tests/api/openstack/test_extensions.py
+++ b/nova/tests/api/openstack/test_extensions.py
@@ -21,7 +21,6 @@ import webob
 from xml.etree import ElementTree
 
 from nova import context
-from nova import flags
 from nova import test
 from nova.api import openstack
 from nova.api.openstack import extensions
@@ -29,7 +28,6 @@ from nova.api.openstack import flavors
 from nova.api.openstack import wsgi
 from nova.tests.api.openstack import fakes
 
-FLAGS = flags.FLAGS
 NS = "{http://docs.openstack.org/compute/api/v1.1}"
 ATOMNS = "{http://www.w3.org/2005/Atom}"
 response_body = "Try to say this Mr. Knox, sir..."
diff --git a/nova/tests/api/openstack/test_flavors_extra_specs.py b/nova/tests/api/openstack/test_flavors_extra_specs.py
index d386958db..ccd1b0d9f 100644
--- a/nova/tests/api/openstack/test_flavors_extra_specs.py
+++ b/nova/tests/api/openstack/test_flavors_extra_specs.py
@@ -21,15 +21,12 @@ import webob
 import os.path
 
 
-from nova import flags
 from nova import test
 from nova.api import openstack
 from nova.api.openstack import extensions
 from nova.tests.api.openstack import fakes
 import nova.wsgi
 
-FLAGS = flags.FLAGS
-
 
 def return_create_flavor_extra_specs(context, flavor_id, extra_specs):
     return stub_flavor_extra_specs()
diff --git a/nova/tests/api/openstack/test_images.py b/nova/tests/api/openstack/test_images.py
index 942c0b333..8e2e3f390 100644
--- a/nova/tests/api/openstack/test_images.py
+++ b/nova/tests/api/openstack/test_images.py
@@ -34,7 +34,6 @@ import webob
 from glance import client as glance_client
 from nova import context
 from nova import exception
-from nova import flags
 from nova import test
 from nova import utils
 import nova.api.openstack
@@ -42,9 +41,6 @@ from nova.api.openstack import images
 from nova.tests.api.openstack import fakes
 
 
-FLAGS = flags.FLAGS
-
-
 class _BaseImageServiceTests(test.TestCase):
     """Tasks to test for all image services"""
 
@@ -328,8 +324,7 @@ class ImageControllerWithGlanceServiceTest(test.TestCase):
     def setUp(self):
         """Run before each test."""
         super(ImageControllerWithGlanceServiceTest, self).setUp()
-        self.orig_image_service = FLAGS.image_service
-        FLAGS.image_service = 'nova.image.glance.GlanceImageService'
+        self.flags(image_service='nova.image.glance.GlanceImageService')
         self.stubs = stubout.StubOutForTesting()
         fakes.stub_out_networking(self.stubs)
         fakes.stub_out_rate_limiting(self.stubs)
@@ -342,7 +337,6 @@ class ImageControllerWithGlanceServiceTest(test.TestCase):
     def tearDown(self):
         """Run after each test."""
         self.stubs.UnsetAll()
-        FLAGS.image_service = self.orig_image_service
         super(ImageControllerWithGlanceServiceTest, self).tearDown()
 
     def _applicable_fixture(self, fixture, user_id):
@@ -1031,6 +1025,9 @@ class ImageControllerWithGlanceServiceTest(test.TestCase):
         req.headers["content-type"] = "application/json"
         response = req.get_response(fakes.wsgi_app())
         self.assertEqual(200, response.status_int)
+        image_meta = json.loads(response.body)['image']
+        self.assertEqual(123, image_meta['serverId'])
+        self.assertEqual('Snapshot 1', image_meta['name'])
 
     def test_create_snapshot_no_name(self):
         """Name is required for snapshots"""
diff --git a/nova/tests/api/openstack/test_server_actions.py b/nova/tests/api/openstack/test_server_actions.py
index fc08a2d53..562cefe90 100644
--- a/nova/tests/api/openstack/test_server_actions.py
+++ b/nova/tests/api/openstack/test_server_actions.py
@@ -8,7 +8,6 @@ import webob
 
 from nova import context
 from nova import db
-from nova import flags
 from nova import utils
 from nova.api.openstack import create_instance_helper
 from nova.compute import instance_types
@@ -19,10 +18,6 @@ from nova.tests.api.openstack import common
 from nova.tests.api.openstack import fakes
 
 
-FLAGS = flags.FLAGS
-FLAGS.verbose = True
-
-
 def return_server_by_id(context, id):
     return _get_instance()
 
@@ -102,6 +97,7 @@ class ServerActionsTest(test.TestCase):
     def setUp(self):
         self.maxDiff = None
         super(ServerActionsTest, self).setUp()
+        self.flags(verbose=True)
         self.stubs = stubout.StubOutForTesting()
         fakes.FakeAuthManager.reset_fake_data()
         fakes.FakeAuthDatabase.data = {}
diff --git a/nova/tests/api/openstack/test_server_metadata.py b/nova/tests/api/openstack/test_server_metadata.py
index f90485067..08a6a062a 100644
--- a/nova/tests/api/openstack/test_server_metadata.py
+++ b/nova/tests/api/openstack/test_server_metadata.py
@@ -17,7 +17,7 @@
 
 import json
 import webob
-
+from xml.dom import minidom
 
 from nova import exception
 from nova import flags
@@ -51,11 +51,10 @@ def delete_server_metadata(context, server_id, key):
 
 def stub_server_metadata():
     metadata = {
-            "key1": "value1",
-            "key2": "value2",
-            "key3": "value3",
-            "key4": "value4",
-            "key5": "value5"}
+        "key1": "value1",
+        "key2": "value2",
+        "key3": "value3",
+    }
     return metadata
 
 
@@ -84,71 +83,120 @@ class ServerMetaDataTest(test.TestCase):
     def test_index(self):
         self.stubs.Set(nova.db.api, 'instance_metadata_get',
                        return_server_metadata)
-        req = webob.Request.blank('/v1.1/servers/1/meta')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/1/metadata')
         res = req.get_response(fakes.wsgi_app())
-        res_dict = json.loads(res.body)
         self.assertEqual(200, res.status_int)
+        res_dict = json.loads(res.body)
         self.assertEqual('application/json', res.headers['Content-Type'])
-        self.assertEqual('value1', res_dict['metadata']['key1'])
+        expected = {
+            'metadata': {
+                'key1': 'value1',
+                'key2': 'value2',
+                'key3': 'value3',
+            },
+        }
+        self.assertEqual(expected, res_dict)
+
+    def test_index_xml(self):
+        self.stubs.Set(nova.db.api, 'instance_metadata_get',
+                       return_server_metadata)
+        request = webob.Request.blank("/v1.1/servers/1/metadata")
+        request.accept = "application/xml"
+        response = request.get_response(fakes.wsgi_app())
+        self.assertEqual(200, response.status_int)
+        self.assertEqual("application/xml", response.content_type)
+
+        actual_metadata = minidom.parseString(response.body.replace("  ", ""))
+
+        expected_metadata = minidom.parseString("""
+            <metadata xmlns="http://docs.openstack.org/compute/api/v1.1">
+                <meta key="key3">value3</meta>
+                <meta key="key2">value2</meta>
+                <meta key="key1">value1</meta>
+            </metadata>
+        """.replace("  ", "").replace("\n", ""))
+
+        self.assertEqual(expected_metadata.toxml(), actual_metadata.toxml())
 
     def test_index_nonexistant_server(self):
         self.stubs.Set(nova.db.api, 'instance_get', return_server_nonexistant)
-        req = webob.Request.blank('/v1.1/servers/1/meta')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/1/metadata')
         res = req.get_response(fakes.wsgi_app())
         self.assertEqual(404, res.status_int)
 
     def test_index_no_data(self):
         self.stubs.Set(nova.db.api, 'instance_metadata_get',
                        return_empty_server_metadata)
-        req = webob.Request.blank('/v1.1/servers/1/meta')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/1/metadata')
         res = req.get_response(fakes.wsgi_app())
-        res_dict = json.loads(res.body)
         self.assertEqual(200, res.status_int)
-        self.assertEqual('application/json', res.headers['Content-Type'])
-        self.assertEqual(0, len(res_dict['metadata']))
+        res_dict = json.loads(res.body)
+        expected = {'metadata': {}}
+        self.assertEqual(expected, res_dict)
 
     def test_show(self):
         self.stubs.Set(nova.db.api, 'instance_metadata_get',
                        return_server_metadata)
-        req = webob.Request.blank('/v1.1/servers/1/meta/key5')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/1/metadata/key2')
         res = req.get_response(fakes.wsgi_app())
         res_dict = json.loads(res.body)
         self.assertEqual(200, res.status_int)
-        self.assertEqual('application/json', res.headers['Content-Type'])
-        self.assertEqual('value5', res_dict['key5'])
+        expected = {'meta': {'key2': 'value2'}}
+        self.assertEqual(expected, res_dict)
+
+    def test_show_xml(self):
+        self.stubs.Set(nova.db.api, 'instance_metadata_get',
+                       return_server_metadata)
+        request = webob.Request.blank("/v1.1/servers/1/metadata/key2")
+        request.accept = "application/xml"
+        response = request.get_response(fakes.wsgi_app())
+        self.assertEqual(200, response.status_int)
+        self.assertEqual("application/xml", response.content_type)
+
+        actual_metadata = minidom.parseString(response.body.replace("  ", ""))
+
+        expected_metadata = minidom.parseString("""
+            <meta xmlns="http://docs.openstack.org/compute/api/v1.1"
+                 key="key2">value2</meta>
+        """.replace("  ", "").replace("\n", ""))
+
+        self.assertEqual(expected_metadata.toxml(), actual_metadata.toxml())
 
     def test_show_nonexistant_server(self):
         self.stubs.Set(nova.db.api, 'instance_get', return_server_nonexistant)
-        req = webob.Request.blank('/v1.1/servers/1/meta/key5')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/1/metadata/key2')
         res = req.get_response(fakes.wsgi_app())
         self.assertEqual(404, res.status_int)
 
     def test_show_meta_not_found(self):
         self.stubs.Set(nova.db.api, 'instance_metadata_get',
                        return_empty_server_metadata)
-        req = webob.Request.blank('/v1.1/servers/1/meta/key6')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/1/metadata/key6')
         res = req.get_response(fakes.wsgi_app())
         self.assertEqual(404, res.status_int)
 
     def test_delete(self):
+        self.stubs.Set(nova.db.api, 'instance_metadata_get',
+                       return_server_metadata)
         self.stubs.Set(nova.db.api, 'instance_metadata_delete',
                        delete_server_metadata)
-        req = webob.Request.blank('/v1.1/servers/1/meta/key5')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/1/metadata/key2')
         req.method = 'DELETE'
         res = req.get_response(fakes.wsgi_app())
-        self.assertEqual(200, res.status_int)
+        self.assertEqual(204, res.status_int)
+        self.assertEqual('', res.body)
 
     def test_delete_nonexistant_server(self):
         self.stubs.Set(nova.db.api, 'instance_get', return_server_nonexistant)
-        req = webob.Request.blank('/v1.1/servers/1/meta/key5')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/1/metadata/key1')
+        req.method = 'DELETE'
+        res = req.get_response(fakes.wsgi_app())
+        self.assertEqual(404, res.status_int)
+
+    def test_delete_meta_not_found(self):
+        self.stubs.Set(nova.db.api, 'instance_metadata_get',
+                       return_empty_server_metadata)
+        req = webob.Request.blank('/v1.1/servers/1/metadata/key6')
         req.method = 'DELETE'
         res = req.get_response(fakes.wsgi_app())
         self.assertEqual(404, res.status_int)
@@ -156,22 +204,45 @@ class ServerMetaDataTest(test.TestCase):
     def test_create(self):
         self.stubs.Set(nova.db.api, 'instance_metadata_update_or_create',
                        return_create_instance_metadata)
-        req = webob.Request.blank('/v1.1/servers/1/meta')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/1/metadata')
         req.method = 'POST'
-        req.body = '{"metadata": {"key1": "value1"}}'
-        req.headers["content-type"] = "application/json"
+        req.content_type = "application/json"
+        expected = {"metadata": {"key1": "value1"}}
+        req.body = json.dumps(expected)
         res = req.get_response(fakes.wsgi_app())
+
         self.assertEqual(200, res.status_int)
         res_dict = json.loads(res.body)
-        self.assertEqual('application/json', res.headers['Content-Type'])
-        self.assertEqual('value1', res_dict['metadata']['key1'])
+        self.assertEqual(expected, res_dict)
+
+    def test_create_xml(self):
+        self.stubs.Set(nova.db.api, "instance_metadata_update_or_create",
+                       return_create_instance_metadata)
+        req = webob.Request.blank("/v1.1/servers/1/metadata")
+        req.method = "POST"
+        req.content_type = "application/xml"
+        req.accept = "application/xml"
+
+        request_metadata = minidom.parseString("""
+            <metadata xmlns="http://docs.openstack.org/compute/api/v1.1">
+                <meta key="key3">value3</meta>
+                <meta key="key2">value2</meta>
+                <meta key="key1">value1</meta>
+            </metadata>
+        """.replace("  ", "").replace("\n", ""))
+
+        req.body = str(request_metadata.toxml())
+        response = req.get_response(fakes.wsgi_app())
+
+        self.assertEqual(200, response.status_int)
+        actual_metadata = minidom.parseString(response.body)
+
+        self.assertEqual(request_metadata.toxml(), actual_metadata.toxml())
 
     def test_create_empty_body(self):
         self.stubs.Set(nova.db.api, 'instance_metadata_update_or_create',
                        return_create_instance_metadata)
-        req = webob.Request.blank('/v1.1/servers/1/meta')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/1/metadata')
         req.method = 'POST'
         req.headers["content-type"] = "application/json"
         res = req.get_response(fakes.wsgi_app())
@@ -179,34 +250,112 @@ class ServerMetaDataTest(test.TestCase):
 
     def test_create_nonexistant_server(self):
         self.stubs.Set(nova.db.api, 'instance_get', return_server_nonexistant)
-        req = webob.Request.blank('/v1.1/servers/100/meta')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/100/metadata')
         req.method = 'POST'
         req.body = '{"metadata": {"key1": "value1"}}'
         req.headers["content-type"] = "application/json"
         res = req.get_response(fakes.wsgi_app())
         self.assertEqual(404, res.status_int)
 
+    def test_update_all(self):
+        self.stubs.Set(nova.db.api, 'instance_metadata_update_or_create',
+                       return_create_instance_metadata)
+        req = webob.Request.blank('/v1.1/servers/1/metadata')
+        req.method = 'PUT'
+        req.content_type = "application/json"
+        expected = {
+            'metadata': {
+                'key10': 'value10',
+                'key99': 'value99',
+            },
+        }
+        req.body = json.dumps(expected)
+        res = req.get_response(fakes.wsgi_app())
+        self.assertEqual(200, res.status_int)
+        res_dict = json.loads(res.body)
+        self.assertEqual(expected, res_dict)
+
+    def test_update_all_empty_container(self):
+        self.stubs.Set(nova.db.api, 'instance_metadata_update_or_create',
+                       return_create_instance_metadata)
+        req = webob.Request.blank('/v1.1/servers/1/metadata')
+        req.method = 'PUT'
+        req.content_type = "application/json"
+        expected = {'metadata': {}}
+        req.body = json.dumps(expected)
+        res = req.get_response(fakes.wsgi_app())
+        self.assertEqual(200, res.status_int)
+        res_dict = json.loads(res.body)
+        self.assertEqual(expected, res_dict)
+
+    def test_update_all_malformed_container(self):
+        self.stubs.Set(nova.db.api, 'instance_metadata_update_or_create',
+                       return_create_instance_metadata)
+        req = webob.Request.blank('/v1.1/servers/1/metadata')
+        req.method = 'PUT'
+        req.content_type = "application/json"
+        expected = {'meta': {}}
+        req.body = json.dumps(expected)
+        res = req.get_response(fakes.wsgi_app())
+        self.assertEqual(400, res.status_int)
+
+    def test_update_all_malformed_data(self):
+        self.stubs.Set(nova.db.api, 'instance_metadata_update_or_create',
+                       return_create_instance_metadata)
+        req = webob.Request.blank('/v1.1/servers/1/metadata')
+        req.method = 'PUT'
+        req.content_type = "application/json"
+        expected = {'metadata': ['asdf']}
+        req.body = json.dumps(expected)
+        res = req.get_response(fakes.wsgi_app())
+        self.assertEqual(400, res.status_int)
+
+    def test_update_all_nonexistant_server(self):
+        self.stubs.Set(nova.db.api, 'instance_get', return_server_nonexistant)
+        req = webob.Request.blank('/v1.1/servers/100/metadata')
+        req.method = 'PUT'
+        req.content_type = "application/json"
+        req.body = json.dumps({'metadata': {'key10': 'value10'}})
+        res = req.get_response(fakes.wsgi_app())
+        self.assertEqual(404, res.status_int)
+
     def test_update_item(self):
         self.stubs.Set(nova.db.api, 'instance_metadata_update_or_create',
                        return_create_instance_metadata)
-        req = webob.Request.blank('/v1.1/servers/1/meta/key1')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/1/metadata/key1')
         req.method = 'PUT'
-        req.body = '{"key1": "value1"}'
+        req.body = '{"meta": {"key1": "value1"}}'
         req.headers["content-type"] = "application/json"
         res = req.get_response(fakes.wsgi_app())
         self.assertEqual(200, res.status_int)
         self.assertEqual('application/json', res.headers['Content-Type'])
         res_dict = json.loads(res.body)
-        self.assertEqual('value1', res_dict['key1'])
+        expected = {'meta': {'key1': 'value1'}}
+        self.assertEqual(expected, res_dict)
+
+    def test_update_item_xml(self):
+        self.stubs.Set(nova.db.api, 'instance_metadata_update_or_create',
+                       return_create_instance_metadata)
+        req = webob.Request.blank('/v1.1/servers/1/metadata/key9')
+        req.method = 'PUT'
+        req.accept = "application/json"
+        req.content_type = "application/xml"
+        req.body = """
+            <meta xmlns="http://docs.openstack.org/compute/api/v1.1"
+                  key="key9">value9</meta>
+        """
+        res = req.get_response(fakes.wsgi_app())
+        self.assertEqual(200, res.status_int)
+        self.assertEqual('application/json', res.headers['Content-Type'])
+        res_dict = json.loads(res.body)
+        expected = {'meta': {'key9': 'value9'}}
+        self.assertEqual(expected, res_dict)
 
     def test_update_item_nonexistant_server(self):
         self.stubs.Set(nova.db.api, 'instance_get', return_server_nonexistant)
-        req = webob.Request.blank('/v1.1/servers/asdf/100/key1')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/asdf/metadata/key1')
         req.method = 'PUT'
-        req.body = '{"key1": "value1"}'
+        req.body = '{"meta":{"key1": "value1"}}'
         req.headers["content-type"] = "application/json"
         res = req.get_response(fakes.wsgi_app())
         self.assertEqual(404, res.status_int)
@@ -214,8 +363,7 @@ class ServerMetaDataTest(test.TestCase):
     def test_update_item_empty_body(self):
         self.stubs.Set(nova.db.api, 'instance_metadata_update_or_create',
                        return_create_instance_metadata)
-        req = webob.Request.blank('/v1.1/servers/1/meta/key1')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/1/metadata/key1')
         req.method = 'PUT'
         req.headers["content-type"] = "application/json"
         res = req.get_response(fakes.wsgi_app())
@@ -224,10 +372,9 @@ class ServerMetaDataTest(test.TestCase):
     def test_update_item_too_many_keys(self):
         self.stubs.Set(nova.db.api, 'instance_metadata_update_or_create',
                        return_create_instance_metadata)
-        req = webob.Request.blank('/v1.1/servers/1/meta/key1')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/1/metadata/key1')
         req.method = 'PUT'
-        req.body = '{"key1": "value1", "key2": "value2"}'
+        req.body = '{"meta": {"key1": "value1", "key2": "value2"}}'
         req.headers["content-type"] = "application/json"
         res = req.get_response(fakes.wsgi_app())
         self.assertEqual(400, res.status_int)
@@ -235,10 +382,9 @@ class ServerMetaDataTest(test.TestCase):
     def test_update_item_body_uri_mismatch(self):
         self.stubs.Set(nova.db.api, 'instance_metadata_update_or_create',
                        return_create_instance_metadata)
-        req = webob.Request.blank('/v1.1/servers/1/meta/bad')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/1/metadata/bad')
         req.method = 'PUT'
-        req.body = '{"key1": "value1"}'
+        req.body = '{"meta": {"key1": "value1"}}'
         req.headers["content-type"] = "application/json"
         res = req.get_response(fakes.wsgi_app())
         self.assertEqual(400, res.status_int)
@@ -250,8 +396,7 @@ class ServerMetaDataTest(test.TestCase):
         for num in range(FLAGS.quota_metadata_items + 1):
             data['metadata']['key%i' % num] = "blah"
         json_string = str(data).replace("\'", "\"")
-        req = webob.Request.blank('/v1.1/servers/1/meta')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/1/metadata')
         req.method = 'POST'
         req.body = json_string
         req.headers["content-type"] = "application/json"
@@ -261,10 +406,9 @@ class ServerMetaDataTest(test.TestCase):
     def test_to_many_metadata_items_on_update_item(self):
         self.stubs.Set(nova.db.api, 'instance_metadata_update_or_create',
                        return_create_instance_metadata_max)
-        req = webob.Request.blank('/v1.1/servers/1/meta/key1')
-        req.environ['api.version'] = '1.1'
+        req = webob.Request.blank('/v1.1/servers/1/metadata/key1')
         req.method = 'PUT'
-        req.body = '{"a new key": "a new value"}'
+        req.body = '{"meta": {"a new key": "a new value"}}'
         req.headers["content-type"] = "application/json"
         res = req.get_response(fakes.wsgi_app())
         self.assertEqual(400, res.status_int)
diff --git a/nova/tests/api/openstack/test_servers.py b/nova/tests/api/openstack/test_servers.py
index 9a943ff61..0477f6d92 100644
--- a/nova/tests/api/openstack/test_servers.py
+++ b/nova/tests/api/openstack/test_servers.py
@@ -26,7 +26,6 @@ import webob
 from nova import context
 from nova import db
 from nova import exception
-from nova import flags
 from nova import test
 from nova import utils
 import nova.api.openstack
@@ -46,10 +45,6 @@ from nova.tests.api.openstack import common
 from nova.tests.api.openstack import fakes
 
 
-FLAGS = flags.FLAGS
-FLAGS.verbose = True
-
-
 FAKE_UUID = 'aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa'
 
 
@@ -235,6 +230,7 @@ class ServersTest(test.TestCase):
     def setUp(self):
         self.maxDiff = None
         super(ServersTest, self).setUp()
+        self.flags(verbose=True)
         fakes.stub_out_networking(self.stubs)
         fakes.stub_out_rate_limiting(self.stubs)
         fakes.stub_out_key_pair_funcs(self.stubs)
@@ -2177,9 +2173,10 @@ b25zLiINCg0KLVJpY2hhcmQgQmFjaA==""",
         self.assertEqual(request['body'], expected)
 
 
-class TestServerCreateRequestXMLDeserializerV11(unittest.TestCase):
+class TestServerCreateRequestXMLDeserializerV11(test.TestCase):
 
     def setUp(self):
+        super(TestServerCreateRequestXMLDeserializerV11, self).setUp()
         self.deserializer = create_instance_helper.ServerXMLDeserializer()
 
     def test_minimal_request(self):
@@ -2324,7 +2321,7 @@ class TestServerCreateRequestXMLDeserializerV11(unittest.TestCase):
                 ],
             },
         }
-        self.assertEquals(request['body'], expected)
+        self.assertDictMatch(request['body'], expected)
 
     def test_spec_request(self):
         image_bookmark_link = "http://servers.api.openstack.org/1234/" + \
diff --git a/nova/tests/api/openstack/test_users.py b/nova/tests/api/openstack/test_users.py
index 705c02f6b..1d133f9ab 100644
--- a/nova/tests/api/openstack/test_users.py
+++ b/nova/tests/api/openstack/test_users.py
@@ -17,7 +17,6 @@ import json
 
 import webob
 
-from nova import flags
 from nova import test
 from nova import utils
 from nova.api.openstack import users
@@ -25,10 +24,6 @@ from nova.auth.manager import User, Project
 from nova.tests.api.openstack import fakes
 
 
-FLAGS = flags.FLAGS
-FLAGS.verbose = True
-
-
 def fake_init(self):
     self.manager = fakes.FakeAuthManager()
 
@@ -40,7 +35,7 @@ def fake_admin_check(self, req):
 class UsersTest(test.TestCase):
     def setUp(self):
         super(UsersTest, self).setUp()
-        self.flags(allow_admin_api=True)
+        self.flags(verbose=True, allow_admin_api=True)
         self.stubs.Set(users.Controller, '__init__',
                        fake_init)
         self.stubs.Set(users.Controller, '_check_admin',
@@ -56,7 +51,6 @@ class UsersTest(test.TestCase):
         fakes.stub_out_rate_limiting(self.stubs)
         fakes.stub_out_auth(self.stubs)
 
-        self.allow_admin = FLAGS.allow_admin_api
         fakemgr = fakes.FakeAuthManager()
         fakemgr.add_user(User('id1', 'guy1', 'acc1', 'secret1', False))
         fakemgr.add_user(User('id2', 'guy2', 'acc2', 'secret2', True))
diff --git a/nova/tests/api/openstack/test_zones.py b/nova/tests/api/openstack/test_zones.py
index 3deb844aa..4a46a5764 100644
--- a/nova/tests/api/openstack/test_zones.py
+++ b/nova/tests/api/openstack/test_zones.py
@@ -29,7 +29,6 @@ from nova.scheduler import api
 
 
 FLAGS = flags.FLAGS
-FLAGS.verbose = True
 
 
 def zone_get(context, zone_id):
@@ -95,7 +94,7 @@ def zone_select(context, specs):
 class ZonesTest(test.TestCase):
     def setUp(self):
         super(ZonesTest, self).setUp()
-        self.flags(allow_admin_api=True)
+        self.flags(verbose=True, allow_admin_api=True)
         fakes.stub_out_networking(self.stubs)
         fakes.stub_out_rate_limiting(self.stubs)
 
diff --git a/nova/tests/hyperv_unittest.py b/nova/tests/hyperv_unittest.py
index 0ea196950..d346d0a70 100644
--- a/nova/tests/hyperv_unittest.py
+++ b/nova/tests/hyperv_unittest.py
@@ -21,13 +21,9 @@ import random
 
 from nova import context
 from nova import db
-from nova import flags
 from nova import test
 from nova.virt import hyperv
 
-FLAGS = flags.FLAGS
-FLAGS.connection_type = 'hyperv'
-
 
 class HyperVTestCase(test.TestCase):
     """Test cases for the Hyper-V driver"""
@@ -36,6 +32,7 @@ class HyperVTestCase(test.TestCase):
         self.user_id = 'fake'
         self.project_id = 'fake'
         self.context = context.RequestContext(self.user_id, self.project_id)
+        self.flags(connection_type='hyperv')
 
     def test_create_destroy(self):
         """Create a VM and destroy it"""
diff --git a/nova/tests/image/test_s3.py b/nova/tests/image/test_s3.py
index 231e109f8..f1ceeb7fe 100644
--- a/nova/tests/image/test_s3.py
+++ b/nova/tests/image/test_s3.py
@@ -16,12 +16,9 @@
 #    under the License.
 
 from nova import context
-from nova import flags
 from nova import test
 from nova.image import s3
 
-FLAGS = flags.FLAGS
-
 
 ami_manifest_xml = """<?xml version="1.0" ?>
 <manifest>
@@ -59,15 +56,10 @@ ami_manifest_xml = """<?xml version="1.0" ?>
 class TestS3ImageService(test.TestCase):
     def setUp(self):
         super(TestS3ImageService, self).setUp()
-        self.orig_image_service = FLAGS.image_service
-        FLAGS.image_service = 'nova.image.fake.FakeImageService'
+        self.flags(image_service='nova.image.fake.FakeImageService')
         self.image_service = s3.S3ImageService()
         self.context = context.RequestContext(None, None)
 
-    def tearDown(self):
-        super(TestS3ImageService, self).tearDown()
-        FLAGS.image_service = self.orig_image_service
-
     def _assertEqualList(self, list0, list1, keys):
         self.assertEqual(len(list0), len(list1))
         key = keys[0]
diff --git a/nova/tests/integrated/integrated_helpers.py b/nova/tests/integrated/integrated_helpers.py
index 47bd8c1e4..fb2f88502 100644
--- a/nova/tests/integrated/integrated_helpers.py
+++ b/nova/tests/integrated/integrated_helpers.py
@@ -23,7 +23,6 @@ import random
 import string
 
 from nova import exception
-from nova import flags
 from nova import service
 from nova import test  # For the flags
 from nova.auth import manager
@@ -32,8 +31,6 @@ from nova.log import logging
 from nova.tests.integrated.api import client
 
 
-FLAGS = flags.FLAGS
-
 LOG = logging.getLogger('nova.tests.integrated')
 
 
@@ -151,6 +148,7 @@ class _IntegratedTestBase(test.TestCase):
 
         f = self._get_flags()
         self.flags(**f)
+        self.flags(verbose=True)
 
         def fake_get_image_service(image_href):
             image_id = int(str(image_href).split('/')[-1])
diff --git a/nova/tests/integrated/test_extensions.py b/nova/tests/integrated/test_extensions.py
index 0d4ee8cab..c22cf0be0 100644
--- a/nova/tests/integrated/test_extensions.py
+++ b/nova/tests/integrated/test_extensions.py
@@ -17,7 +17,6 @@
 
 import os
 
-from nova import flags
 from nova.log import logging
 from nova.tests.integrated import integrated_helpers
 
@@ -25,10 +24,6 @@ from nova.tests.integrated import integrated_helpers
 LOG = logging.getLogger('nova.tests.integrated')
 
 
-FLAGS = flags.FLAGS
-FLAGS.verbose = True
-
-
 class ExtensionsTest(integrated_helpers._IntegratedTestBase):
     def _get_flags(self):
         f = super(ExtensionsTest, self)._get_flags()
diff --git a/nova/tests/integrated/test_login.py b/nova/tests/integrated/test_login.py
index a5180b6bc..06359a52f 100644
--- a/nova/tests/integrated/test_login.py
+++ b/nova/tests/integrated/test_login.py
@@ -17,7 +17,6 @@
 
 import unittest
 
-from nova import flags
 from nova.log import logging
 from nova.tests.integrated import integrated_helpers
 from nova.tests.integrated.api import client
@@ -25,9 +24,6 @@ from nova.tests.integrated.api import client
 
 LOG = logging.getLogger('nova.tests.integrated')
 
-FLAGS = flags.FLAGS
-FLAGS.verbose = True
-
 
 class LoginTest(integrated_helpers._IntegratedTestBase):
     def test_login(self):
diff --git a/nova/tests/integrated/test_servers.py b/nova/tests/integrated/test_servers.py
index 67b3c485a..150279a95 100644
--- a/nova/tests/integrated/test_servers.py
+++ b/nova/tests/integrated/test_servers.py
@@ -18,7 +18,6 @@
 import time
 import unittest
 
-from nova import flags
 from nova.log import logging
 from nova.tests.integrated import integrated_helpers
 from nova.tests.integrated.api import client
@@ -27,10 +26,6 @@ from nova.tests.integrated.api import client
 LOG = logging.getLogger('nova.tests.integrated')
 
 
-FLAGS = flags.FLAGS
-FLAGS.verbose = True
-
-
 class ServersTest(integrated_helpers._IntegratedTestBase):
     def test_get_servers(self):
         """Simple check that listing servers works."""
diff --git a/nova/tests/integrated/test_volumes.py b/nova/tests/integrated/test_volumes.py
index e9fb3c4d1..d3e936462 100644
--- a/nova/tests/integrated/test_volumes.py
+++ b/nova/tests/integrated/test_volumes.py
@@ -18,7 +18,6 @@
 import unittest
 import time
 
-from nova import flags
 from nova.log import logging
 from nova.tests.integrated import integrated_helpers
 from nova.tests.integrated.api import client
@@ -28,10 +27,6 @@ from nova.volume import driver
 LOG = logging.getLogger('nova.tests.integrated')
 
 
-FLAGS = flags.FLAGS
-FLAGS.verbose = True
-
-
 class VolumesTest(integrated_helpers._IntegratedTestBase):
     def setUp(self):
         super(VolumesTest, self).setUp()
diff --git a/nova/tests/integrated/test_xml.py b/nova/tests/integrated/test_xml.py
index fde32f797..74baaacc2 100644
--- a/nova/tests/integrated/test_xml.py
+++ b/nova/tests/integrated/test_xml.py
@@ -15,7 +15,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from nova import flags
 from nova.log import logging
 from nova.tests.integrated import integrated_helpers
 from nova.api.openstack import common
@@ -24,10 +23,6 @@ from nova.api.openstack import common
 LOG = logging.getLogger('nova.tests.integrated')
 
 
-FLAGS = flags.FLAGS
-FLAGS.verbose = True
-
-
 class XmlTests(integrated_helpers._IntegratedTestBase):
     """"Some basic XML sanity checks."""
 
diff --git a/nova/tests/scheduler/test_host_filter.py b/nova/tests/scheduler/test_host_filter.py
index b1892dab4..7e664d3f9 100644
--- a/nova/tests/scheduler/test_host_filter.py
+++ b/nova/tests/scheduler/test_host_filter.py
@@ -19,12 +19,9 @@ Tests For Scheduler Host Filters.
 import json
 
 from nova import exception
-from nova import flags
 from nova import test
 from nova.scheduler import host_filter
 
-FLAGS = flags.FLAGS
-
 
 class FakeZoneManager:
     pass
@@ -57,9 +54,9 @@ class HostFilterTestCase(test.TestCase):
                 'host_name-label': 'xs-%s' % multiplier}
 
     def setUp(self):
-        self.old_flag = FLAGS.default_host_filter
-        FLAGS.default_host_filter = \
-                            'nova.scheduler.host_filter.AllHostsFilter'
+        super(HostFilterTestCase, self).setUp()
+        default_host_filter = 'nova.scheduler.host_filter.AllHostsFilter'
+        self.flags(default_host_filter=default_host_filter)
         self.instance_type = dict(name='tiny',
                 memory_mb=50,
                 vcpus=10,
@@ -98,9 +95,6 @@ class HostFilterTestCase(test.TestCase):
         host09['xpu_arch'] = 'fermi'
         host09['xpu_info'] = 'Tesla 2150'
 
-    def tearDown(self):
-        FLAGS.default_host_filter = self.old_flag
-
     def test_choose_filter(self):
         # Test default filter ...
         hf = host_filter.choose_host_filter()
diff --git a/nova/tests/scheduler/test_least_cost_scheduler.py b/nova/tests/scheduler/test_least_cost_scheduler.py
index 49791053e..fbe6b2f77 100644
--- a/nova/tests/scheduler/test_least_cost_scheduler.py
+++ b/nova/tests/scheduler/test_least_cost_scheduler.py
@@ -16,13 +16,11 @@
 Tests For Least Cost Scheduler
 """
 
-from nova import flags
 from nova import test
 from nova.scheduler import least_cost
 from nova.tests.scheduler import test_zone_aware_scheduler
 
 MB = 1024 * 1024
-FLAGS = flags.FLAGS
 
 
 class FakeHost(object):
@@ -95,10 +93,9 @@ class LeastCostSchedulerTestCase(test.TestCase):
         self.assertWeights(expected, num, request_spec, hosts)
 
     def test_noop_cost_fn(self):
-        FLAGS.least_cost_scheduler_cost_functions = [
-            'nova.scheduler.least_cost.noop_cost_fn',
-        ]
-        FLAGS.noop_cost_fn_weight = 1
+        self.flags(least_cost_scheduler_cost_functions=[
+                'nova.scheduler.least_cost.noop_cost_fn'],
+                noop_cost_fn_weight=1)
 
         num = 1
         request_spec = {}
@@ -109,10 +106,9 @@ class LeastCostSchedulerTestCase(test.TestCase):
         self.assertWeights(expected, num, request_spec, hosts)
 
     def test_cost_fn_weights(self):
-        FLAGS.least_cost_scheduler_cost_functions = [
-            'nova.scheduler.least_cost.noop_cost_fn',
-        ]
-        FLAGS.noop_cost_fn_weight = 2
+        self.flags(least_cost_scheduler_cost_functions=[
+                'nova.scheduler.least_cost.noop_cost_fn'],
+                noop_cost_fn_weight=2)
 
         num = 1
         request_spec = {}
@@ -123,10 +119,9 @@ class LeastCostSchedulerTestCase(test.TestCase):
         self.assertWeights(expected, num, request_spec, hosts)
 
     def test_compute_fill_first_cost_fn(self):
-        FLAGS.least_cost_scheduler_cost_functions = [
-            'nova.scheduler.least_cost.compute_fill_first_cost_fn',
-        ]
-        FLAGS.compute_fill_first_cost_fn_weight = 1
+        self.flags(least_cost_scheduler_cost_functions=[
+                'nova.scheduler.least_cost.compute_fill_first_cost_fn'],
+                compute_fill_first_cost_fn_weight=1)
 
         num = 1
         instance_type = {'memory_mb': 1024}
diff --git a/nova/tests/scheduler/test_scheduler.py b/nova/tests/scheduler/test_scheduler.py
index bd2394adf..330dab5e5 100644
--- a/nova/tests/scheduler/test_scheduler.py
+++ b/nova/tests/scheduler/test_scheduler.py
@@ -964,13 +964,10 @@ class ZoneRedirectTest(test.TestCase):
         self.stubs.Set(db, 'zone_get_all', zone_get_all)
         self.stubs.Set(db, 'instance_get_by_uuid',
                        fake_instance_get_by_uuid)
-
-        self.enable_zone_routing = FLAGS.enable_zone_routing
-        FLAGS.enable_zone_routing = True
+        self.flags(enable_zone_routing=True)
 
     def tearDown(self):
         self.stubs.UnsetAll()
-        FLAGS.enable_zone_routing = self.enable_zone_routing
         super(ZoneRedirectTest, self).tearDown()
 
     def test_trap_found_locally(self):
@@ -1000,7 +997,7 @@ class ZoneRedirectTest(test.TestCase):
             self.assertEquals(e.results['magic'], 'found me')
 
     def test_routing_flags(self):
-        FLAGS.enable_zone_routing = False
+        self.flags(enable_zone_routing=False)
         decorator = FakeRerouteCompute("foo")
         self.assertRaises(exception.InstanceNotFound, decorator(go_boom),
                           None, None, 1)
diff --git a/nova/tests/test_auth.py b/nova/tests/test_auth.py
index 7c0f783bb..2e24b7d6e 100644
--- a/nova/tests/test_auth.py
+++ b/nova/tests/test_auth.py
@@ -83,9 +83,9 @@ class user_and_project_generator(object):
 
 class _AuthManagerBaseTestCase(test.TestCase):
     def setUp(self):
-        FLAGS.auth_driver = self.auth_driver
         super(_AuthManagerBaseTestCase, self).setUp()
-        self.flags(connection_type='fake')
+        self.flags(auth_driver=self.auth_driver,
+                connection_type='fake')
         self.manager = manager.AuthManager(new=True)
         self.manager.mc.cache = {}
 
diff --git a/nova/tests/test_cloud.py b/nova/tests/test_cloud.py
index 8c1a74c70..e891fa197 100644
--- a/nova/tests/test_cloud.py
+++ b/nova/tests/test_cloud.py
@@ -99,11 +99,9 @@ class CloudTestCase(test.TestCase):
         """Makes sure describe regions runs without raising an exception"""
         result = self.cloud.describe_regions(self.context)
         self.assertEqual(len(result['regionInfo']), 1)
-        regions = FLAGS.region_list
-        FLAGS.region_list = ["one=test_host1", "two=test_host2"]
+        self.flags(region_list=["one=test_host1", "two=test_host2"])
         result = self.cloud.describe_regions(self.context)
         self.assertEqual(len(result['regionInfo']), 2)
-        FLAGS.region_list = regions
 
     def test_describe_addresses(self):
         """Makes sure describe addresses runs without raising an exception"""
diff --git a/nova/tests/test_host_filter.py b/nova/tests/test_host_filter.py
index 438f3e522..3a1389a49 100644
--- a/nova/tests/test_host_filter.py
+++ b/nova/tests/test_host_filter.py
@@ -19,12 +19,9 @@ Tests For Scheduler Host Filters.
 import json
 
 from nova import exception
-from nova import flags
 from nova import test
 from nova.scheduler import host_filter
 
-FLAGS = flags.FLAGS
-
 
 class FakeZoneManager:
     pass
@@ -57,9 +54,9 @@ class HostFilterTestCase(test.TestCase):
                 'host_name-label': 'xs-%s' % multiplier}
 
     def setUp(self):
-        self.old_flag = FLAGS.default_host_filter
-        FLAGS.default_host_filter = \
-                            'nova.scheduler.host_filter.AllHostsFilter'
+        super(HostFilterTestCase, self).setUp()
+        default_host_filter = 'nova.scheduler.host_filter.AllHostsFilter'
+        self.flags(default_host_filter=default_host_filter)
         self.instance_type = dict(name='tiny',
                 memory_mb=50,
                 vcpus=10,
@@ -76,9 +73,6 @@ class HostFilterTestCase(test.TestCase):
             states['host%02d' % (x + 1)] = {'compute': self._host_caps(x)}
         self.zone_manager.service_states = states
 
-    def tearDown(self):
-        FLAGS.default_host_filter = self.old_flag
-
     def test_choose_filter(self):
         # Test default filter ...
         hf = host_filter.choose_host_filter()
diff --git a/nova/tests/test_ipv6.py b/nova/tests/test_ipv6.py
index 11dc2ec98..d123df6f1 100644
--- a/nova/tests/test_ipv6.py
+++ b/nova/tests/test_ipv6.py
@@ -16,15 +16,12 @@
 
 """Test suite for IPv6."""
 
-from nova import flags
 from nova import ipv6
 from nova import log as logging
 from nova import test
 
 LOG = logging.getLogger('nova.tests.test_ipv6')
 
-FLAGS = flags.FLAGS
-
 import sys
 
 
diff --git a/nova/tests/test_libvirt.py b/nova/tests/test_libvirt.py
index cf25ce215..f8b866985 100644
--- a/nova/tests/test_libvirt.py
+++ b/nova/tests/test_libvirt.py
@@ -38,7 +38,6 @@ from nova.virt.libvirt import firewall
 
 libvirt = None
 FLAGS = flags.FLAGS
-flags.DECLARE('instances_path', 'nova.compute.manager')
 
 
 def _concurrency(wait, done, target):
@@ -93,6 +92,7 @@ def _setup_networking(instance_id, ip='1.2.3.4'):
 class CacheConcurrencyTestCase(test.TestCase):
     def setUp(self):
         super(CacheConcurrencyTestCase, self).setUp()
+        self.flags(instances_path='nova.compute.manager')
 
         def fake_exists(fname):
             basedir = os.path.join(FLAGS.instances_path, '_base')
@@ -158,7 +158,7 @@ class LibvirtConnTestCase(test.TestCase):
         self.context = context.RequestContext(self.user_id, self.project_id)
         self.network = utils.import_object(FLAGS.network_manager)
         self.context = context.get_admin_context()
-        FLAGS.instances_path = ''
+        self.flags(instances_path='')
         self.call_libvirt_dependant_setup = False
         self.test_ip = '10.11.12.13'
 
@@ -322,7 +322,7 @@ class LibvirtConnTestCase(test.TestCase):
         if not self.lazy_load_library_exists():
             return
 
-        FLAGS.image_service = 'nova.image.fake.FakeImageService'
+        self.flags(image_service='nova.image.fake.FakeImageService')
 
         # Start test
         image_service = utils.import_object(FLAGS.image_service)
@@ -357,7 +357,7 @@ class LibvirtConnTestCase(test.TestCase):
         if not self.lazy_load_library_exists():
             return
 
-        FLAGS.image_service = 'nova.image.fake.FakeImageService'
+        self.flags(image_service='nova.image.fake.FakeImageService')
 
         # Start test
         image_service = utils.import_object(FLAGS.image_service)
@@ -521,7 +521,7 @@ class LibvirtConnTestCase(test.TestCase):
                                'disk.local')]
 
         for (libvirt_type, (expected_uri, checks)) in type_uri_map.iteritems():
-            FLAGS.libvirt_type = libvirt_type
+            self.flags(libvirt_type=libvirt_type)
             conn = connection.LibvirtConnection(True)
 
             uri = conn.get_uri()
@@ -546,9 +546,9 @@ class LibvirtConnTestCase(test.TestCase):
         # checking against that later on. This way we make sure the
         # implementation doesn't fiddle around with the FLAGS.
         testuri = 'something completely different'
-        FLAGS.libvirt_uri = testuri
+        self.flags(libvirt_uri=testuri)
         for (libvirt_type, (expected_uri, checks)) in type_uri_map.iteritems():
-            FLAGS.libvirt_type = libvirt_type
+            self.flags(libvirt_type=libvirt_type)
             conn = connection.LibvirtConnection(True)
             uri = conn.get_uri()
             self.assertEquals(uri, testuri)
@@ -556,8 +556,7 @@ class LibvirtConnTestCase(test.TestCase):
 
     def test_update_available_resource_works_correctly(self):
         """Confirm compute_node table is updated successfully."""
-        org_path = FLAGS.instances_path = ''
-        FLAGS.instances_path = '.'
+        self.flags(instances_path='.')
 
         # Prepare mocks
         def getVersion():
@@ -604,12 +603,10 @@ class LibvirtConnTestCase(test.TestCase):
             self.assertTrue(compute_node['hypervisor_version'] > 0)
 
         db.service_destroy(self.context, service_ref['id'])
-        FLAGS.instances_path = org_path
 
     def test_update_resource_info_no_compute_record_found(self):
         """Raise exception if no recorde found on services table."""
-        org_path = FLAGS.instances_path = ''
-        FLAGS.instances_path = '.'
+        self.flags(instances_path='.')
         self.create_fake_libvirt_mock()
 
         self.mox.ReplayAll()
@@ -618,8 +615,6 @@ class LibvirtConnTestCase(test.TestCase):
                           conn.update_available_resource,
                           self.context, 'dummy')
 
-        FLAGS.instances_path = org_path
-
     def test_ensure_filtering_rules_for_instance_timeout(self):
         """ensure_filtering_fules_for_instance() finishes with timeout."""
         # Skip if non-libvirt environment
diff --git a/nova/tests/test_network.py b/nova/tests/test_network.py
index 28f50d328..2ca8b64f4 100644
--- a/nova/tests/test_network.py
+++ b/nova/tests/test_network.py
@@ -17,7 +17,6 @@
 
 from nova import db
 from nova import exception
-from nova import flags
 from nova import log as logging
 from nova import test
 from nova.network import manager as network_manager
@@ -26,7 +25,6 @@ from nova.network import manager as network_manager
 import mox
 
 
-FLAGS = flags.FLAGS
 LOG = logging.getLogger('nova.tests.network')
 
 
diff --git a/nova/tests/test_quota.py b/nova/tests/test_quota.py
index 92393b536..f4b481ebe 100644
--- a/nova/tests/test_quota.py
+++ b/nova/tests/test_quota.py
@@ -114,9 +114,7 @@ class QuotaTestCase(test.TestCase):
         db.quota_destroy_all_by_project(self.context, self.project_id)
 
     def test_unlimited_instances(self):
-        FLAGS.quota_instances = 2
-        FLAGS.quota_ram = -1
-        FLAGS.quota_cores = -1
+        self.flags(quota_instances=2, quota_ram=-1, quota_cores=-1)
         instance_type = self._get_instance_type('m1.small')
         num_instances = quota.allowed_instances(self.context, 100,
                                                 instance_type)
@@ -130,9 +128,7 @@ class QuotaTestCase(test.TestCase):
         self.assertEqual(num_instances, 101)
 
     def test_unlimited_ram(self):
-        FLAGS.quota_instances = -1
-        FLAGS.quota_ram = 2 * 2048
-        FLAGS.quota_cores = -1
+        self.flags(quota_instances=-1, quota_ram=2 * 2048, quota_cores=-1)
         instance_type = self._get_instance_type('m1.small')
         num_instances = quota.allowed_instances(self.context, 100,
                                                 instance_type)
@@ -146,9 +142,7 @@ class QuotaTestCase(test.TestCase):
         self.assertEqual(num_instances, 101)
 
     def test_unlimited_cores(self):
-        FLAGS.quota_instances = -1
-        FLAGS.quota_ram = -1
-        FLAGS.quota_cores = 2
+        self.flags(quota_instances=-1, quota_ram=-1, quota_cores=2)
         instance_type = self._get_instance_type('m1.small')
         num_instances = quota.allowed_instances(self.context, 100,
                                                 instance_type)
@@ -162,8 +156,7 @@ class QuotaTestCase(test.TestCase):
         self.assertEqual(num_instances, 101)
 
     def test_unlimited_volumes(self):
-        FLAGS.quota_volumes = 10
-        FLAGS.quota_gigabytes = -1
+        self.flags(quota_volumes=10, quota_gigabytes=-1)
         volumes = quota.allowed_volumes(self.context, 100, 1)
         self.assertEqual(volumes, 10)
         db.quota_create(self.context, self.project_id, 'volumes', None)
@@ -173,8 +166,7 @@ class QuotaTestCase(test.TestCase):
         self.assertEqual(volumes, 101)
 
     def test_unlimited_gigabytes(self):
-        FLAGS.quota_volumes = -1
-        FLAGS.quota_gigabytes = 10
+        self.flags(quota_volumes=-1, quota_gigabytes=10)
         volumes = quota.allowed_volumes(self.context, 100, 1)
         self.assertEqual(volumes, 10)
         db.quota_create(self.context, self.project_id, 'gigabytes', None)
@@ -184,7 +176,7 @@ class QuotaTestCase(test.TestCase):
         self.assertEqual(volumes, 101)
 
     def test_unlimited_floating_ips(self):
-        FLAGS.quota_floating_ips = 10
+        self.flags(quota_floating_ips=10)
         floating_ips = quota.allowed_floating_ips(self.context, 100)
         self.assertEqual(floating_ips, 10)
         db.quota_create(self.context, self.project_id, 'floating_ips', None)
@@ -194,7 +186,7 @@ class QuotaTestCase(test.TestCase):
         self.assertEqual(floating_ips, 101)
 
     def test_unlimited_metadata_items(self):
-        FLAGS.quota_metadata_items = 10
+        self.flags(quota_metadata_items=10)
         items = quota.allowed_metadata_items(self.context, 100)
         self.assertEqual(items, 10)
         db.quota_create(self.context, self.project_id, 'metadata_items', None)
@@ -286,49 +278,49 @@ class QuotaTestCase(test.TestCase):
                                             metadata=metadata)
 
     def test_default_allowed_injected_files(self):
-        FLAGS.quota_max_injected_files = 55
+        self.flags(quota_max_injected_files=55)
         self.assertEqual(quota.allowed_injected_files(self.context, 100), 55)
 
     def test_overridden_allowed_injected_files(self):
-        FLAGS.quota_max_injected_files = 5
+        self.flags(quota_max_injected_files=5)
         db.quota_create(self.context, self.project_id, 'injected_files', 77)
         self.assertEqual(quota.allowed_injected_files(self.context, 100), 77)
 
     def test_unlimited_default_allowed_injected_files(self):
-        FLAGS.quota_max_injected_files = -1
+        self.flags(quota_max_injected_files=-1)
         self.assertEqual(quota.allowed_injected_files(self.context, 100), 100)
 
     def test_unlimited_db_allowed_injected_files(self):
-        FLAGS.quota_max_injected_files = 5
+        self.flags(quota_max_injected_files=5)
         db.quota_create(self.context, self.project_id, 'injected_files', None)
         self.assertEqual(quota.allowed_injected_files(self.context, 100), 100)
 
     def test_default_allowed_injected_file_content_bytes(self):
-        FLAGS.quota_max_injected_file_content_bytes = 12345
+        self.flags(quota_max_injected_file_content_bytes=12345)
         limit = quota.allowed_injected_file_content_bytes(self.context, 23456)
         self.assertEqual(limit, 12345)
 
     def test_overridden_allowed_injected_file_content_bytes(self):
-        FLAGS.quota_max_injected_file_content_bytes = 12345
+        self.flags(quota_max_injected_file_content_bytes=12345)
         db.quota_create(self.context, self.project_id,
                         'injected_file_content_bytes', 5678)
         limit = quota.allowed_injected_file_content_bytes(self.context, 23456)
         self.assertEqual(limit, 5678)
 
     def test_unlimited_default_allowed_injected_file_content_bytes(self):
-        FLAGS.quota_max_injected_file_content_bytes = -1
+        self.flags(quota_max_injected_file_content_bytes=-1)
         limit = quota.allowed_injected_file_content_bytes(self.context, 23456)
         self.assertEqual(limit, 23456)
 
     def test_unlimited_db_allowed_injected_file_content_bytes(self):
-        FLAGS.quota_max_injected_file_content_bytes = 12345
+        self.flags(quota_max_injected_file_content_bytes=12345)
         db.quota_create(self.context, self.project_id,
                         'injected_file_content_bytes', None)
         limit = quota.allowed_injected_file_content_bytes(self.context, 23456)
         self.assertEqual(limit, 23456)
 
     def _create_with_injected_files(self, files):
-        FLAGS.image_service = 'nova.image.fake.FakeImageService'
+        self.flags(image_service='nova.image.fake.FakeImageService')
         api = compute.API(image_service=self.StubImageService())
         inst_type = instance_types.get_instance_type_by_name('m1.small')
         api.create(self.context, min_count=1, max_count=1,
@@ -336,7 +328,7 @@ class QuotaTestCase(test.TestCase):
                 injected_files=files)
 
     def test_no_injected_files(self):
-        FLAGS.image_service = 'nova.image.fake.FakeImageService'
+        self.flags(image_service='nova.image.fake.FakeImageService')
         api = compute.API(image_service=self.StubImageService())
         inst_type = instance_types.get_instance_type_by_name('m1.small')
         api.create(self.context, instance_type=inst_type, image_href='3')
diff --git a/nova/tests/test_rpc.py b/nova/tests/test_rpc.py
index 2d2436175..ba9c0a859 100644
--- a/nova/tests/test_rpc.py
+++ b/nova/tests/test_rpc.py
@@ -20,13 +20,11 @@ Unit Tests for remote procedure calls using queue
 """
 
 from nova import context
-from nova import flags
 from nova import log as logging
 from nova import rpc
 from nova import test
 
 
-FLAGS = flags.FLAGS
 LOG = logging.getLogger('nova.tests.rpc')
 
 
diff --git a/nova/tests/test_rpc_amqp.py b/nova/tests/test_rpc_amqp.py
index d29f7ae32..2215a908b 100644
--- a/nova/tests/test_rpc_amqp.py
+++ b/nova/tests/test_rpc_amqp.py
@@ -1,12 +1,32 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright (c) 2010 Openstack, LLC.
+# Administrator of the National Aeronautics and Space Administration.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""
+Tests For RPC AMQP.
+"""
+
 from nova import context
-from nova import flags
 from nova import log as logging
 from nova import rpc
 from nova.rpc import amqp
 from nova import test
 
 
-FLAGS = flags.FLAGS
 LOG = logging.getLogger('nova.tests.rpc')
 
 
diff --git a/nova/tests/test_service.py b/nova/tests/test_service.py
index bbf47b50f..8f92406ff 100644
--- a/nova/tests/test_service.py
+++ b/nova/tests/test_service.py
@@ -33,7 +33,6 @@ from nova import manager
 from nova import wsgi
 from nova.compute import manager as compute_manager
 
-FLAGS = flags.FLAGS
 flags.DEFINE_string("fake_manager", "nova.tests.test_service.FakeManager",
                     "Manager for testing")
 
diff --git a/nova/tests/test_xenapi.py b/nova/tests/test_xenapi.py
index a795b3c74..8048e5341 100644
--- a/nova/tests/test_xenapi.py
+++ b/nova/tests/test_xenapi.py
@@ -71,9 +71,9 @@ class XenAPIVolumeTestCase(test.TestCase):
         self.user_id = 'fake'
         self.project_id = 'fake'
         self.context = context.RequestContext(self.user_id, self.project_id)
-        FLAGS.target_host = '127.0.0.1'
-        FLAGS.xenapi_connection_url = 'test_url'
-        FLAGS.xenapi_connection_password = 'test_pass'
+        self.flags(target_host='127.0.0.1',
+                xenapi_connection_url='test_url',
+                xenapi_connection_password='test_pass')
         db_fakes.stub_out_db_instance_api(self.stubs)
         stubs.stub_out_get_target(self.stubs)
         xenapi_fake.reset()
@@ -170,6 +170,10 @@ def reset_network(*args):
     pass
 
 
+def _find_rescue_vbd_ref(*args):
+    pass
+
+
 class XenAPIVMTestCase(test.TestCase):
     """Unit tests for VM operations."""
     def setUp(self):
@@ -189,6 +193,8 @@ class XenAPIVMTestCase(test.TestCase):
         stubs.stubout_stream_disk(self.stubs)
         stubs.stubout_is_vdi_pv(self.stubs)
         self.stubs.Set(vmops.VMOps, 'reset_network', reset_network)
+        self.stubs.Set(vmops.VMOps, '_find_rescue_vbd_ref',
+                _find_rescue_vbd_ref)
         stubs.stub_out_vm_methods(self.stubs)
         glance_stubs.stubout_glance_client(self.stubs)
         fake_utils.stub_out_utils_execute(self.stubs)
@@ -397,7 +403,7 @@ class XenAPIVMTestCase(test.TestCase):
                     instance_type_id="3", os_type="linux",
                     architecture="x86-64", instance_id=1,
                     check_injection=False,
-                    create_record=True):
+                    create_record=True, empty_dns=False):
         stubs.stubout_loopingcall_start(self.stubs)
         if create_record:
             values = {'id': instance_id,
@@ -426,12 +432,22 @@ class XenAPIVMTestCase(test.TestCase):
                            'label': 'fake',
                            'mac': 'DE:AD:BE:EF:00:00',
                            'rxtx_cap': 3})]
+        if empty_dns:
+            network_info[0][1]['dns'] = []
+
         self.conn.spawn(self.context, instance, network_info)
         self.create_vm_record(self.conn, os_type, instance_id)
         self.check_vm_record(self.conn, check_injection)
         self.assertTrue(instance.os_type)
         self.assertTrue(instance.architecture)
 
+    def test_spawn_empty_dns(self):
+        """"Test spawning with an empty dns list"""
+        self._test_spawn(glance_stubs.FakeGlance.IMAGE_VHD, None, None,
+                         os_type="linux", architecture="x86-64",
+                         empty_dns=True)
+        self.check_vm_params_for_linux()
+
     def test_spawn_not_enough_memory(self):
         self.assertRaises(Exception,
                           self._test_spawn,
@@ -719,9 +735,9 @@ class XenAPIMigrateInstance(test.TestCase):
     def setUp(self):
         super(XenAPIMigrateInstance, self).setUp()
         self.stubs = stubout.StubOutForTesting()
-        FLAGS.target_host = '127.0.0.1'
-        FLAGS.xenapi_connection_url = 'test_url'
-        FLAGS.xenapi_connection_password = 'test_pass'
+        self.flags(target_host='127.0.0.1',
+                xenapi_connection_url='test_url',
+                xenapi_connection_password='test_pass')
         db_fakes.stub_out_db_instance_api(self.stubs)
         stubs.stub_out_get_target(self.stubs)
         xenapi_fake.reset()
@@ -751,15 +767,68 @@ class XenAPIMigrateInstance(test.TestCase):
         conn = xenapi_conn.get_connection(False)
         conn.migrate_disk_and_power_off(instance, '127.0.0.1')
 
+
+    def test_revert_migrate(self):
+        instance = db.instance_create(self.context, self.values)
+        self.called = False
+        self.fake_vm_start_called = False
+        self.fake_revert_migration_called = False
+
+        def fake_vm_start(*args, **kwargs):
+            self.fake_vm_start_called = True
+
+        def fake_vdi_resize(*args, **kwargs):
+            self.called = True
+
+        def fake_revert_migration(*args, **kwargs):
+            self.fake_revert_migration_called = True
+
+        self.stubs.Set(stubs.FakeSessionForMigrationTests,
+                "VDI_resize_online", fake_vdi_resize)
+        self.stubs.Set(vmops.VMOps, '_start', fake_vm_start)
+        self.stubs.Set(vmops.VMOps, 'revert_migration', fake_revert_migration)
+
+        stubs.stubout_session(self.stubs, stubs.FakeSessionForMigrationTests)
+        stubs.stubout_loopingcall_start(self.stubs)
+        conn = xenapi_conn.get_connection(False)
+        network_info = [({'bridge': 'fa0', 'id': 0, 'injected': False},
+                          {'broadcast': '192.168.0.255',
+                           'dns': ['192.168.0.1'],
+                           'gateway': '192.168.0.1',
+                           'gateway6': 'dead:beef::1',
+                           'ip6s': [{'enabled': '1',
+                                     'ip': 'dead:beef::dcad:beff:feef:0',
+                                           'netmask': '64'}],
+                           'ips': [{'enabled': '1',
+                                    'ip': '192.168.0.100',
+                                    'netmask': '255.255.255.0'}],
+                           'label': 'fake',
+                           'mac': 'DE:AD:BE:EF:00:00',
+                           'rxtx_cap': 3})]
+        conn.finish_migration(self.context, instance,
+                              dict(base_copy='hurr', cow='durr'),
+                              network_info, resize_instance=True)
+        self.assertEqual(self.called, True)
+        self.assertEqual(self.fake_vm_start_called, True)
+
+        conn.revert_migration(instance)
+        self.assertEqual(self.fake_revert_migration_called, True)
+
     def test_finish_migrate(self):
         instance = db.instance_create(self.context, self.values)
         self.called = False
+        self.fake_vm_start_called = False
+
+        def fake_vm_start(*args, **kwargs):
+            self.fake_vm_start_called = True
 
         def fake_vdi_resize(*args, **kwargs):
             self.called = True
 
         self.stubs.Set(stubs.FakeSessionForMigrationTests,
                 "VDI_resize_online", fake_vdi_resize)
+        self.stubs.Set(vmops.VMOps, '_start', fake_vm_start)
+
         stubs.stubout_session(self.stubs, stubs.FakeSessionForMigrationTests)
         stubs.stubout_loopingcall_start(self.stubs)
         conn = xenapi_conn.get_connection(False)
@@ -781,6 +850,7 @@ class XenAPIMigrateInstance(test.TestCase):
                               dict(base_copy='hurr', cow='durr'),
                               network_info, resize_instance=True)
         self.assertEqual(self.called, True)
+        self.assertEqual(self.fake_vm_start_called, True)
 
     def test_finish_migrate_no_local_storage(self):
         tiny_type_id = \
diff --git a/nova/utils.py b/nova/utils.py
index 4ea623cc1..1e2dbebb1 100644
--- a/nova/utils.py
+++ b/nova/utils.py
@@ -126,6 +126,22 @@ def fetchfile(url, target):
 
 
 def execute(*cmd, **kwargs):
+    """
+    Helper method to execute command with optional retry.
+
+    :cmd                Passed to subprocess.Popen.
+    :process_input      Send to opened process.
+    :addl_env           Added to the processes env.
+    :check_exit_code    Defaults to 0. Raise exception.ProcessExecutionError
+                        unless program exits with this code.
+    :delay_on_retry     True | False. Defaults to True. If set to True, wait a
+                        short amount of time before retrying.
+    :attempts           How many times to retry cmd.
+
+    :raises exception.Error on receiving unknown arguments
+    :raises exception.ProcessExecutionError
+    """
+
     process_input = kwargs.pop('process_input', None)
     addl_env = kwargs.pop('addl_env', None)
     check_exit_code = kwargs.pop('check_exit_code', 0)
@@ -790,7 +806,7 @@ def parse_server_string(server_str):
         (address, port) = server_str.split(':')
         return (address, port)
 
-    except:
+    except Exception:
         LOG.debug(_('Invalid server_string: %s' % server_str))
         return ('', '')
 
diff --git a/nova/virt/libvirt/connection.py b/nova/virt/libvirt/connection.py
index f7aae4112..0b93a8399 100644
--- a/nova/virt/libvirt/connection.py
+++ b/nova/virt/libvirt/connection.py
@@ -349,7 +349,7 @@ class LibvirtConnection(driver.ComputeDriver):
         """Returns the xml for the disk mounted at device"""
         try:
             doc = libxml2.parseDoc(xml)
-        except:
+        except Exception:
             return None
         ctx = doc.xpathNewContext()
         try:
@@ -1077,7 +1077,7 @@ class LibvirtConnection(driver.ComputeDriver):
 
         try:
             doc = libxml2.parseDoc(xml)
-        except:
+        except Exception:
             return []
 
         ctx = doc.xpathNewContext()
@@ -1118,7 +1118,7 @@ class LibvirtConnection(driver.ComputeDriver):
 
         try:
             doc = libxml2.parseDoc(xml)
-        except:
+        except Exception:
             return []
 
         ctx = doc.xpathNewContext()
diff --git a/nova/virt/libvirt/vif.py b/nova/virt/libvirt/vif.py
index eef582fac..711b05bae 100644
--- a/nova/virt/libvirt/vif.py
+++ b/nova/virt/libvirt/vif.py
@@ -25,6 +25,7 @@ from nova.network import linux_net
 from nova.virt.libvirt import netutils
 from nova import utils
 from nova.virt.vif import VIFDriver
+from nova import exception
 
 LOG = logging.getLogger('nova.virt.libvirt.vif')
 
@@ -128,7 +129,7 @@ class LibvirtOpenVswitchDriver(VIFDriver):
             utils.execute('sudo', 'ovs-vsctl', 'del-port',
                           network['bridge'], dev)
             utils.execute('sudo', 'ip', 'link', 'delete', dev)
-        except:
+        except exception.ProcessExecutionError:
             LOG.warning(_("Failed while unplugging vif of instance '%s'"),
                         instance['name'])
             raise
diff --git a/nova/virt/xenapi/vmops.py b/nova/virt/xenapi/vmops.py
index b3b812a48..a78413370 100644
--- a/nova/virt/xenapi/vmops.py
+++ b/nova/virt/xenapi/vmops.py
@@ -122,7 +122,7 @@ class VMOps(object):
                                  network_info)
         if resize_instance:
             self.resize_instance(instance, vdi_uuid)
-        self._spawn(instance, vm_ref)
+        self._start(instance, vm_ref=vm_ref)
 
     def _start(self, instance, vm_ref=None):
         """Power on a VM instance"""
@@ -743,6 +743,17 @@ class VMOps(object):
         except self.XenAPI.Failure, exc:
             LOG.exception(exc)
 
+    def _find_rescue_vbd_ref(self, vm_ref, rescue_vm_ref):
+        """Find and return the rescue VM's vbd_ref.
+
+        We use the second VBD here because swap is first with the root file
+        system coming in second."""
+        vbd_ref = self._session.get_xenapi().VM.get_VBDs(vm_ref)[1]
+        vdi_ref = self._session.get_xenapi().VBD.get_record(vbd_ref)["VDI"]
+
+        return VMHelper.create_vbd(self._session, rescue_vm_ref, vdi_ref, 1,
+                False)
+
     def _shutdown_rescue(self, rescue_vm_ref):
         """Shutdown a rescue instance."""
         self._session.call_xenapi("Async.VM.hard_shutdown", rescue_vm_ref)
@@ -914,7 +925,7 @@ class VMOps(object):
                                          True)
         self._wait_with_callback(instance.id, task, callback)
 
-    def rescue(self, context, instance, callback, network_info):
+    def rescue(self, context, instance, _callback, network_info):
         """Rescue the specified instance.
 
             - shutdown the instance VM.
@@ -934,15 +945,11 @@ class VMOps(object):
         instance._rescue = True
         self.spawn_rescue(context, instance, network_info)
         rescue_vm_ref = VMHelper.lookup(self._session, instance.name)
-
-        vbd_ref = self._session.get_xenapi().VM.get_VBDs(vm_ref)[0]
-        vdi_ref = self._session.get_xenapi().VBD.get_record(vbd_ref)["VDI"]
-        rescue_vbd_ref = VMHelper.create_vbd(self._session, rescue_vm_ref,
-                                             vdi_ref, 1, False)
+        rescue_vbd_ref = self._find_rescue_vbd_ref(vm_ref, rescue_vm_ref)
 
         self._session.call_xenapi("Async.VBD.plug", rescue_vbd_ref)
 
-    def unrescue(self, instance, callback):
+    def unrescue(self, instance, _callback):
         """Unrescue the specified instance.
 
             - unplug the instance VM's disk from the rescue VM.
diff --git a/nova/virt/xenapi_conn.py b/nova/virt/xenapi_conn.py
index 8ddbbd33a..49ae2623e 100644
--- a/nova/virt/xenapi_conn.py
+++ b/nova/virt/xenapi_conn.py
@@ -191,7 +191,7 @@ class XenAPIConnection(driver.ComputeDriver):
 
     def revert_migration(self, instance):
         """Reverts a resize, powering back on the instance"""
-        self._vmops.revert_resize(instance)
+        self._vmops.revert_migration(instance)
 
     def finish_migration(self, context, instance, disk_info, network_info,
                          resize_instance=False):
@@ -242,13 +242,13 @@ class XenAPIConnection(driver.ComputeDriver):
         """resume the specified instance"""
         self._vmops.resume(instance, callback)
 
-    def rescue(self, context, instance, callback, network_info):
+    def rescue(self, context, instance, _callback, network_info):
         """Rescue the specified instance"""
-        self._vmops.rescue(context, instance, callback, network_info)
+        self._vmops.rescue(context, instance, _callback, network_info)
 
-    def unrescue(self, instance, callback, network_info):
+    def unrescue(self, instance, _callback, network_info):
         """Unrescue the specified instance"""
-        self._vmops.unrescue(instance, callback)
+        self._vmops.unrescue(instance, _callback)
 
     def poll_rescued_instances(self, timeout):
         """Poll for rescued instances"""
@@ -440,7 +440,7 @@ class XenAPISession(object):
                 params = None
                 try:
                     params = eval(exc.details[3])
-                except:
+                except Exception:
                     raise exc
                 raise self.XenAPI.Failure(params)
             else:
diff --git a/nova/vnc/proxy.py b/nova/vnc/proxy.py
index c4603803b..2e3e38ca9 100644
--- a/nova/vnc/proxy.py
+++ b/nova/vnc/proxy.py
@@ -60,7 +60,7 @@ class WebsocketVNCProxy(object):
                     break
                 d = base64.b64encode(d)
                 dest.send(d)
-        except:
+        except Exception:
             source.close()
             dest.close()
 
@@ -72,7 +72,7 @@ class WebsocketVNCProxy(object):
                     break
                 d = base64.b64decode(d)
                 dest.sendall(d)
-        except:
+        except Exception:
             source.close()
             dest.close()
 
diff --git a/plugins/xenserver/xenapi/etc/xapi.d/plugins/glance b/plugins/xenserver/xenapi/etc/xapi.d/plugins/glance
index 86e837849..a06312890 100755
--- a/plugins/xenserver/xenapi/etc/xapi.d/plugins/glance
+++ b/plugins/xenserver/xenapi/etc/xapi.d/plugins/glance
@@ -248,6 +248,22 @@ def _upload_tarball(staging_path, image_id, glance_host, glance_port, os_type,
     using chunked-transfer-encoded HTTP.
     """
     conn = httplib.HTTPConnection(glance_host, glance_port)
+
+    # NOTE(dprince): We need to resend any existing Glance meta/property
+    # headers so they are preserved in Glance. We obtain them here with a
+    # HEAD request.
+    conn.request('HEAD', '/v1/images/%s' % image_id)
+    resp = conn.getresponse()
+    if resp.status != httplib.OK:
+        raise Exception("Unexpected response from Glance %i" % resp.status)
+    headers = {}
+    for header, value in resp.getheaders():
+        if header.lower().startswith("x-image-meta-property-"):
+            headers[header.lower()] = value
+
+    # Toss body so connection state-machine is ready for next request/response
+    resp.read()
+
     # NOTE(sirp): httplib under python2.4 won't accept a file-like object
     # to request
     conn.putrequest('PUT', '/v1/images/%s' % image_id)
@@ -260,7 +276,7 @@ def _upload_tarball(staging_path, image_id, glance_host, glance_port, os_type,
     #   2. We're currently uploading a vanilla tarball. In order to be OVF/OVA
     #      compliant, we'll need to embed a minimal OVF manifest as the first
     #      file.
-    headers = {
+    ovf_headers = {
         'content-type': 'application/octet-stream',
         'transfer-encoding': 'chunked',
         'x-image-meta-is-public': 'True',
@@ -271,7 +287,9 @@ def _upload_tarball(staging_path, image_id, glance_host, glance_port, os_type,
 
     # If we have an auth_token, set an x-auth-token header
     if auth_token:
-        headers['x-auth-token'] = auth_token
+        ovf_headers['x-auth-token'] = auth_token
+
+    headers.update(ovf_headers)
 
     for header, value in headers.iteritems():
         conn.putheader(header, value)