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#
# 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_serialization import jsonutils
from aodhclient import utils
from aodhclient.v2 import alarm_cli
from aodhclient.v2 import base
class AlarmManager(base.Manager):
url = "v2/alarms"
@staticmethod
def _filtersdict_to_url(filters):
urls = []
for k, v in sorted(filters.items()):
url = "q.field={}&q.op=eq&q.value={}".format(k, v)
urls.append(url)
return '&'.join(urls)
def list(self, filters=None, limit=None,
marker=None, sorts=None):
"""List alarms.
:param filters: A dict includes filters parameters, for example,
{'type': 'gnocchi_resources_threshold',
'severity': 'low'} represent filters to query alarms
with type='gnocchi_resources_threshold' and
severity='low'.
:type filters: dict
:param limit: maximum number of resources to return
:type limit: int
:param marker: the last item of the previous page; we return the next
results after this value.
:type marker: str
:param sorts: list of resource attributes to order by.
:type sorts: list of str
"""
pagination = utils.get_pagination_options(limit, marker, sorts)
filter_string = (self._filtersdict_to_url(filters) if
filters else "")
url = self.url
options = []
if filter_string:
options.append(filter_string)
if pagination:
options.append(pagination)
if options:
url += "?" + "&".join(options)
return self._get(url).json()
def query(self, query=None):
"""Query alarms.
:param query: A json format complex query expression, like this:
'{"=":{"type":"gnocchi_resources_threshold"}}', this
expression is used to query all the
gnocchi_resources_threshold type alarms.
:type query: json
"""
query = {'filter': query}
url = "v2/query/alarms"
return self._post(url,
headers={'Content-Type': "application/json"},
data=jsonutils.dumps(query)).json()
def get(self, alarm_id):
"""Get an alarm
:param alarm_id: ID of the alarm
:type alarm_id: str
"""
return self._get(self.url + '/' + alarm_id).json()
@staticmethod
def _clean_rules(alarm_type, alarm):
for rule in alarm_cli.ALARM_TYPES:
if rule != alarm_type:
alarm.pop('%s_rule' % rule, None)
def create(self, alarm):
"""Create an alarm
:param alarm: the alarm
:type alarm: dict
"""
self._clean_rules(alarm['type'], alarm)
return self._post(
self.url, headers={'Content-Type': "application/json"},
data=jsonutils.dumps(alarm)).json()
def update(self, alarm_id, alarm_update):
"""Update an alarm
:param alarm_id: ID of the alarm
:type alarm_id: str
:param attributes: Attributes of the alarm
:type attributes: dict
"""
alarm = self._get(self.url + '/' + alarm_id).json()
if 'type' not in alarm_update:
self._clean_rules(alarm['type'], alarm_update)
else:
self._clean_rules(alarm_update['type'], alarm_update)
if 'prometheus_rule' in alarm_update:
rule = alarm_update.get('prometheus_rule')
alarm['prometheus_rule'].update(rule)
alarm_update.pop('prometheus_rule')
elif 'threshold_rule' in alarm_update:
alarm['threshold_rule'].update(alarm_update.get('threshold_rule'))
alarm_update.pop('threshold_rule')
elif 'event_rule' in alarm_update:
if ('type' in alarm_update and
alarm_update['type'] != alarm['type']):
alarm.pop('%s_rule' % alarm['type'], None)
alarm['event_rule'] = alarm_update['event_rule']
else:
alarm['event_rule'].update(alarm_update.get('event_rule'))
alarm_update.pop('event_rule')
elif 'gnocchi_resources_threshold_rule' in alarm_update:
if ('type' in alarm_update and
alarm_update['type'] != alarm['type']):
alarm.pop('%s_rule' % alarm['type'], None)
alarm['gnocchi_resources_threshold_rule'] = alarm_update[
'gnocchi_resources_threshold_rule']
else:
alarm['gnocchi_resources_threshold_rule'].update(
alarm_update.get('gnocchi_resources_threshold_rule'))
alarm_update.pop('gnocchi_resources_threshold_rule')
elif 'gnocchi_aggregation_by_metrics_threshold_rule' in alarm_update:
if ('type' in alarm_update and
alarm_update['type'] != alarm['type']):
alarm.pop('%s_rule' % alarm['type'], None)
alarm['gnocchi_aggregation_by_metrics_threshold_rule'] = \
alarm_update[
'gnocchi_aggregation_by_metrics_threshold_rule']
else:
alarm['gnocchi_aggregation_by_metrics_threshold_rule'].update(
alarm_update.get(
'gnocchi_aggregation_by_metrics_threshold_rule'))
alarm_update.pop('gnocchi_aggregation_by_metrics_threshold_rule')
elif 'gnocchi_aggregation_by_resources_threshold_rule' in alarm_update:
if ('type' in alarm_update and
alarm_update['type'] != alarm['type']):
alarm.pop('%s_rule' % alarm['type'], None)
alarm['gnocchi_aggregation_by_resources_threshold_rule'] = \
alarm_update[
'gnocchi_aggregation_by_resources_threshold_rule']
else:
alarm['gnocchi_aggregation_by_resources_threshold_rule'].\
update(alarm_update.get(
'gnocchi_aggregation_by_resources_threshold_rule'))
alarm_update.pop(
'gnocchi_aggregation_by_resources_threshold_rule')
elif 'composite_rule' in alarm_update:
if ('type' in alarm_update and
alarm_update['type'] != alarm['type']):
alarm.pop('%s_rule' % alarm['type'], None)
if alarm_update['composite_rule'] is not None:
alarm['composite_rule'] = alarm_update[
'composite_rule']
alarm_update.pop('composite_rule')
elif 'loadbalancer_member_health_rule' in alarm_update:
if ('type' in alarm_update and
alarm_update['type'] != alarm['type']):
alarm.pop('%s_rule' % alarm['type'], None)
if alarm_update['loadbalancer_member_health_rule'] is not None:
alarm['loadbalancer_member_health_rule'] = alarm_update[
'loadbalancer_member_health_rule']
alarm_update.pop('loadbalancer_member_health_rule')
alarm.update(alarm_update)
return self._put(
self.url + '/' + alarm_id,
headers={'Content-Type': "application/json"},
data=jsonutils.dumps(alarm)).json()
def delete(self, alarm_id):
"""Delete an alarm
:param alarm_id: ID of the alarm
:type alarm_id: str
"""
self._delete(self.url + '/' + alarm_id)
def get_state(self, alarm_id):
"""Get the state of an alarm
:param alarm_id: ID of the alarm
:type alarm_id: str
"""
return self._get(self.url + '/' + alarm_id + '/state').json()
def set_state(self, alarm_id, state):
"""Set the state of an alarm
:param alarm_id: ID of the alarm
:type alarm_id: str
:param state: the state to be updated to the alarm
:type state: str
"""
return self._put(self.url + '/' + alarm_id + '/state',
headers={'Content-Type': "application/json"},
data='"%s"' % state
).json()
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