128 lines
4.6 KiB
Python
128 lines
4.6 KiB
Python
# Copyright 2014 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import webob
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from nova.api.openstack import extensions
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from nova.api.openstack import wsgi
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from nova import compute
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from nova import exception
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from nova.i18n import _
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from nova import objects
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from nova.objects import external_event as external_event_obj
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from nova.openstack.common import log as logging
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LOG = logging.getLogger(__name__)
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ALIAS = 'os-server-external-events'
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authorize = extensions.extension_authorizer('compute',
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'v3:' + ALIAS)
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class ServerExternalEventsController(wsgi.Controller):
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def __init__(self):
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self.compute_api = compute.API()
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super(ServerExternalEventsController, self).__init__()
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@extensions.expected_errors((400, 403, 404))
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@wsgi.response(200)
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def create(self, req, body):
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"""Creates a new instance event."""
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context = req.environ['nova.context']
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authorize(context, action='create')
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events = []
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accepted = []
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instances = {}
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result = 200
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body_events = body.get('events', [])
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if not isinstance(body_events, list) or not len(body_events):
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raise webob.exc.HTTPBadRequest()
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for _event in body_events:
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client_event = dict(_event)
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event = objects.InstanceExternalEvent(context)
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try:
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event.instance_uuid = client_event.pop('server_uuid')
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event.name = client_event.pop('name')
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event.status = client_event.pop('status', 'completed')
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event.tag = client_event.pop('tag', None)
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except KeyError as missing_key:
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msg = _('event entity requires key %(key)s') % missing_key
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raise webob.exc.HTTPBadRequest(explanation=msg)
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if client_event:
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msg = (_('event entity contains unsupported items: %s') %
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', '.join(client_event.keys()))
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raise webob.exc.HTTPBadRequest(explanation=msg)
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if event.status not in external_event_obj.EVENT_STATUSES:
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raise webob.exc.HTTPBadRequest(
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_('Invalid event status `%s\'') % event.status)
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events.append(_event)
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if event.instance_uuid not in instances:
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try:
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instance = objects.Instance.get_by_uuid(
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context, event.instance_uuid)
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instances[event.instance_uuid] = instance
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except exception.InstanceNotFound:
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LOG.debug('Dropping event %(name)s:%(tag)s for unknown '
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'instance %(instance_uuid)s',
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dict(event.iteritems()))
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_event['status'] = 'failed'
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_event['code'] = 404
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result = 207
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if event.instance_uuid in instances:
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accepted.append(event)
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_event['code'] = 200
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LOG.audit(_('Create event %(name)s:%(tag)s for instance '
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'%(instance_uuid)s'),
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dict(event.iteritems()))
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if accepted:
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self.compute_api.external_instance_event(context,
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instances.values(),
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accepted)
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else:
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msg = _('No instances found for any event')
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raise webob.exc.HTTPNotFound(explanation=msg)
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# FIXME(cyeoh): This needs some infrastructure support so that
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# we have a general way to do this
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robj = wsgi.ResponseObject({'events': events})
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robj._code = result
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return robj
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class ServerExternalEvents(extensions.V3APIExtensionBase):
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"""Server External Event Triggers."""
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name = "ServerExternalEvents"
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alias = ALIAS
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version = 1
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def get_resources(self):
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resource = extensions.ResourceExtension(ALIAS,
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ServerExternalEventsController())
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return [resource]
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def get_controller_extensions(self):
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return []
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