# -*- encoding: utf-8 -*-
# Copyright (c) 2017 Servionica
#
# 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 oslo_config import cfg
from watcher.notifications import base as notificationbase
from watcher.objects import base
from watcher.objects import fields as wfields
from watcher.objects import service as o_service
CONF = cfg.CONF
[docs]@base.WatcherObjectRegistry.register_notification
class ServicePayload(notificationbase.NotificationPayloadBase):
SCHEMA = {
'sevice_host': ('failed_service', 'host'),
'name': ('failed_service', 'name'),
'last_seen_up': ('failed_service', 'last_seen_up'),
}
# Version 1.0: Initial version
VERSION = '1.0'
fields = {
'sevice_host': wfields.StringField(),
'name': wfields.StringField(),
'last_seen_up': wfields.DateTimeField(nullable=True),
}
def __init__(self, failed_service, status_update, **kwargs):
super(ServicePayload, self).__init__(
failed_service=failed_service,
status_update=status_update, **kwargs)
self.populate_schema(failed_service=failed_service)
[docs]@base.WatcherObjectRegistry.register_notification
class ServiceStatusUpdatePayload(notificationbase.NotificationPayloadBase):
# Version 1.0: Initial version
VERSION = '1.0'
fields = {
'old_state': wfields.StringField(nullable=True),
'state': wfields.StringField(nullable=True),
}
[docs]@base.WatcherObjectRegistry.register_notification
class ServiceUpdatePayload(ServicePayload):
# Version 1.0: Initial version
VERSION = '1.0'
fields = {
'status_update': wfields.ObjectField('ServiceStatusUpdatePayload'),
}
def __init__(self, failed_service, status_update):
super(ServiceUpdatePayload, self).__init__(
failed_service=failed_service,
status_update=status_update)
[docs]@notificationbase.notification_sample('service-update.json')
@base.WatcherObjectRegistry.register_notification
class ServiceUpdateNotification(notificationbase.NotificationBase):
# Version 1.0: Initial version
VERSION = '1.0'
fields = {
'payload': wfields.ObjectField('ServiceUpdatePayload')
}
def send_service_update(context, failed_service, state,
service='infra-optim',
host=None):
"""Emit an service failed notification."""
if state == o_service.ServiceStatus.FAILED:
priority = wfields.NotificationPriority.WARNING
status_update = ServiceStatusUpdatePayload(
old_state=o_service.ServiceStatus.ACTIVE,
state=o_service.ServiceStatus.FAILED)
else:
priority = wfields.NotificationPriority.INFO
status_update = ServiceStatusUpdatePayload(
old_state=o_service.ServiceStatus.FAILED,
state=o_service.ServiceStatus.ACTIVE)
versioned_payload = ServiceUpdatePayload(
failed_service=failed_service,
status_update=status_update
)
notification = ServiceUpdateNotification(
priority=priority,
event_type=notificationbase.EventType(
object='service',
action=wfields.NotificationAction.UPDATE),
publisher=notificationbase.NotificationPublisher(
host=host or CONF.host,
binary=service),
payload=versioned_payload)
notification.emit(context)
Except where otherwise noted, this document is licensed under Creative Commons Attribution 3.0 License. See all OpenStack Legal Documents.