almanach/almanach/collector/handlers/instance_handler.py
Frédéric Guillot 7c14e2e868 Migrate to oslo_messaging and oslo_service
This modification introduce a breaking change about AMQP
queue handling.

Now, Almanach use the same terminology as other OpenStack
projects.

- By default, Almanach listen on the "almanach" topic
- The "info" priority is used to receive notifications
- The "error" level is used as retry queue
- The "critical" level for the dead queue

To be compatible with olso_messaging drivers, transport_url
must start by "rabbit://" to use the driver kombu.

Change-Id: Ia331d68e94c8ce4196b2d5f3b974a8dbdd6016ef
2016-11-17 10:13:56 -05:00

65 lines
2.9 KiB
Python

# Copyright 2016 Internap.
#
# 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 almanach.collector.handlers import base_handler
class InstanceHandler(base_handler.BaseHandler):
def __init__(self, controller):
super(InstanceHandler, self).__init__()
self.controller = controller
def handle_events(self, notification):
if notification.event_type == "compute.instance.create.end":
self._on_instance_created(notification)
elif notification.event_type == "compute.instance.delete.end":
self._on_instance_deleted(notification)
elif notification.event_type == "compute.instance.resize.confirm.end":
self._on_instance_resized(notification)
elif notification.event_type == "compute.instance.rebuild.end":
self._on_instance_rebuilt(notification)
def _on_instance_created(self, notification):
self.controller.create_instance(
notification.payload.get("instance_id"),
notification.payload.get("tenant_id"),
notification.payload.get("created_at"),
notification.payload.get("instance_type"),
notification.payload.get("image_meta").get("os_type"),
notification.payload.get("image_meta").get("distro"),
notification.payload.get("image_meta").get("version"),
notification.payload.get("hostname"),
notification.payload.get("metadata", {})
)
def _on_instance_deleted(self, notification):
date = notification.payload.get("terminated_at")
instance_id = notification.payload.get("instance_id")
self.controller.delete_instance(instance_id, date)
def _on_instance_resized(self, notification):
date = notification.context.get("timestamp")
flavor = notification.payload.get("instance_type")
instance_id = notification.payload.get("instance_id")
self.controller.resize_instance(instance_id, flavor, date)
def _on_instance_rebuilt(self, notification):
date = notification.context.get("timestamp")
instance_id = notification.payload.get("instance_id")
distro = notification.payload.get("image_meta").get("distro")
version = notification.payload.get("image_meta").get("version")
os_type = notification.payload.get("image_meta").get("os_type")
self.controller.rebuild_instance(instance_id, distro, version, os_type, date)