nova/nova/api/openstack/compute/contrib/migrations.py

76 lines
2.5 KiB
Python

# 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.
from nova.api.openstack import extensions
from nova.api.openstack import wsgi
from nova.api.openstack import xmlutil
from nova import compute
XMLNS = "http://docs.openstack.org/compute/ext/migrations/api/v2.0"
ALIAS = "os-migrations"
def authorize(context, action_name):
action = 'migrations:%s' % action_name
extensions.extension_authorizer('compute', action)(context)
class MigrationsTemplate(xmlutil.TemplateBuilder):
def construct(self):
root = xmlutil.TemplateElement('migrations')
elem = xmlutil.SubTemplateElement(root, 'migration',
selector='migrations')
elem.set('id')
elem.set('source_node')
elem.set('dest_node')
elem.set('source_compute')
elem.set('dest_compute')
elem.set('dest_host')
elem.set('status')
elem.set('instance_uuid')
elem.set('old_instance_type_id')
elem.set('new_instance_type_id')
elem.set('created_at')
elem.set('updated_at')
return xmlutil.MasterTemplate(root, 1)
class MigrationsController(object):
"""Controller for accessing migrations in OpenStack API."""
def __init__(self):
self.compute_api = compute.API()
@wsgi.serializers(xml=MigrationsTemplate)
def index(self, req):
"""Return all migrations in progress."""
context = req.environ['nova.context']
authorize(context, "index")
migrations = self.compute_api.get_migrations(context, req.GET)
return {'migrations': migrations}
class Migrations(extensions.ExtensionDescriptor):
"""Provide data on migrations."""
name = "Migrations"
alias = ALIAS
namespace = XMLNS
updated = "2013-05-30T00:00:00+00:00"
def get_resources(self):
resources = []
resource = extensions.ResourceExtension('os-migrations',
MigrationsController())
resources.append(resource)
return resources