d2a8454043
Implements: blueprint service-versioned-notifications-api Change-Id: I9d601edb265ee230104f6c63a5f044869aeb3a02
114 lines
3.8 KiB
Python
114 lines
3.8 KiB
Python
# -*- encoding: utf-8 -*-
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# Copyright (c) 2017 Servionica
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from oslo_config import cfg
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from watcher.notifications import base as notificationbase
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from watcher.objects import base
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from watcher.objects import fields as wfields
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from watcher.objects import service as o_service
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CONF = cfg.CONF
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@base.WatcherObjectRegistry.register_notification
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class ServicePayload(notificationbase.NotificationPayloadBase):
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SCHEMA = {
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'sevice_host': ('failed_service', 'host'),
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'name': ('failed_service', 'name'),
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'last_seen_up': ('failed_service', 'last_seen_up'),
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}
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# Version 1.0: Initial version
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VERSION = '1.0'
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fields = {
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'sevice_host': wfields.StringField(),
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'name': wfields.StringField(),
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'last_seen_up': wfields.DateTimeField(nullable=True),
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}
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def __init__(self, failed_service, status_update, **kwargs):
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super(ServicePayload, self).__init__(
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failed_service=failed_service,
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status_update=status_update, **kwargs)
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self.populate_schema(failed_service=failed_service)
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@base.WatcherObjectRegistry.register_notification
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class ServiceStatusUpdatePayload(notificationbase.NotificationPayloadBase):
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# Version 1.0: Initial version
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VERSION = '1.0'
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fields = {
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'old_state': wfields.StringField(nullable=True),
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'state': wfields.StringField(nullable=True),
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}
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@base.WatcherObjectRegistry.register_notification
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class ServiceUpdatePayload(ServicePayload):
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# Version 1.0: Initial version
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VERSION = '1.0'
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fields = {
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'status_update': wfields.ObjectField('ServiceStatusUpdatePayload'),
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}
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def __init__(self, failed_service, status_update):
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super(ServiceUpdatePayload, self).__init__(
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failed_service=failed_service,
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status_update=status_update)
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@notificationbase.notification_sample('service-update.json')
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@base.WatcherObjectRegistry.register_notification
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class ServiceUpdateNotification(notificationbase.NotificationBase):
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# Version 1.0: Initial version
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VERSION = '1.0'
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fields = {
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'payload': wfields.ObjectField('ServiceUpdatePayload')
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}
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def send_service_update(context, failed_service, state,
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service='infra-optim',
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host=None):
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"""Emit an service failed notification."""
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if state == o_service.ServiceStatus.FAILED:
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priority = wfields.NotificationPriority.WARNING
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status_update = ServiceStatusUpdatePayload(
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old_state=o_service.ServiceStatus.ACTIVE,
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state=o_service.ServiceStatus.FAILED)
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else:
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priority = wfields.NotificationPriority.INFO
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status_update = ServiceStatusUpdatePayload(
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old_state=o_service.ServiceStatus.FAILED,
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state=o_service.ServiceStatus.ACTIVE)
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versioned_payload = ServiceUpdatePayload(
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failed_service=failed_service,
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status_update=status_update
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)
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notification = ServiceUpdateNotification(
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priority=priority,
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event_type=notificationbase.EventType(
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object='service',
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action=wfields.NotificationAction.UPDATE),
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publisher=notificationbase.NotificationPublisher(
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host=host or CONF.host,
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binary=service),
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payload=versioned_payload)
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notification.emit(context)
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