+++ /dev/null
-# Copyright 2017 Intel Research and Development Ireland Limited
-# *************************************************************
-
-# This file is part of OSM Monitoring module
-# All Rights Reserved to Intel Corporation
-
-# 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.
-
-# For those usages not covered by the Apache License, Version 2.0 please
-# contact: helena.mcgough@intel.com or adrian.hoban@intel.com
-##
-"""Carry out alarming requests via Aodh API."""
-
-import json
-import logging
-from json import JSONDecodeError
-
-import six
-import yaml
-
-from osm_mon.core.auth import AuthManager
-from osm_mon.core.database import DatabaseManager
-from osm_mon.core.message_bus.producer import KafkaProducer
-from osm_mon.core.settings import Config
-from osm_mon.plugins.OpenStack.Gnocchi.metrics import METRIC_MAPPINGS
-from osm_mon.plugins.OpenStack.common import Common
-from osm_mon.plugins.OpenStack.response import OpenStack_Response
-
-log = logging.getLogger(__name__)
-
-SEVERITIES = {
- "warning": "low",
- "minor": "low",
- "major": "moderate",
- "critical": "critical",
- "indeterminate": "critical"}
-
-STATISTICS = {
- "average": "mean",
- "minimum": "min",
- "maximum": "max",
- "count": "count",
- "sum": "sum"}
-
-
-class Alarming(object):
- """Carries out alarming requests and responses via Aodh API."""
-
- def __init__(self):
- """Create the OpenStack alarming instance."""
- self._database_manager = DatabaseManager()
- self._auth_manager = AuthManager()
-
- # Use the Response class to generate valid json response messages
- self._response = OpenStack_Response()
-
- # Initializer a producer to send responses back to SO
- self._producer = KafkaProducer("alarm_response")
-
- def alarming(self, message, vim_uuid):
- """
- Processes alarm request message depending on it's key
- :param message: Message containing key and value attributes. This last one can be in JSON or YAML format.
- :param vim_uuid: UUID of the VIM to handle the alarm request.
- :return:
- """
- try:
- values = json.loads(message.value)
- except JSONDecodeError:
- values = yaml.safe_load(message.value)
-
- log.info("OpenStack alarm action required.")
-
- verify_ssl = self._auth_manager.is_verify_ssl(vim_uuid)
-
- auth_token = Common.get_auth_token(vim_uuid, verify_ssl=verify_ssl)
-
- alarm_endpoint = Common.get_endpoint("alarming", vim_uuid, verify_ssl=verify_ssl)
- metric_endpoint = Common.get_endpoint("metric", vim_uuid, verify_ssl=verify_ssl)
-
- vim_account = self._auth_manager.get_credentials(vim_uuid)
- vim_config = json.loads(vim_account.config)
-
- if message.key == "create_alarm_request":
- alarm_details = values['alarm_create_request']
- alarm_id = None
- status = False
- try:
- metric_name = alarm_details['metric_name'].lower()
- resource_id = alarm_details['resource_uuid']
-
- self.check_for_metric(auth_token, metric_endpoint, metric_name, resource_id, verify_ssl)
-
- alarm_id = self.configure_alarm(
- alarm_endpoint, auth_token, alarm_details, vim_config, verify_ssl)
-
- log.info("Alarm successfully created")
- self._database_manager.save_alarm(alarm_id,
- vim_uuid,
- alarm_details['threshold_value'],
- alarm_details['operation'].lower(),
- alarm_details['metric_name'].lower(),
- alarm_details['vdu_name'].lower(),
- alarm_details['vnf_member_index'],
- alarm_details['ns_id'].lower()
- )
- status = True
- except Exception as e:
- log.exception("Error creating alarm")
- raise e
- finally:
- self._generate_and_send_response('create_alarm_response',
- alarm_details['correlation_id'],
- status=status,
- alarm_id=alarm_id)
-
- elif message.key == "list_alarm_request":
- list_details = values['alarm_list_request']
- alarm_list = None
- try:
- alarm_list = self.list_alarms(
- alarm_endpoint, auth_token, list_details, verify_ssl)
- except Exception as e:
- log.exception("Error listing alarms")
- raise e
- finally:
- self._generate_and_send_response('list_alarm_response',
- list_details['correlation_id'],
- alarm_list=alarm_list)
-
- elif message.key == "delete_alarm_request":
- request_details = values['alarm_delete_request']
- alarm_id = request_details['alarm_uuid']
- status = False
- try:
- self.delete_alarm(
- alarm_endpoint, auth_token, alarm_id, verify_ssl)
- status = True
- except Exception as e:
- log.exception("Error deleting alarm")
- raise e
- finally:
- self._generate_and_send_response('delete_alarm_response',
- request_details['correlation_id'],
- status=status,
- alarm_id=alarm_id)
-
- elif message.key == "acknowledge_alarm":
- try:
- alarm_id = values['ack_details']['alarm_uuid']
-
- self.update_alarm_state(
- alarm_endpoint, auth_token, alarm_id, verify_ssl)
-
- log.info("Acknowledged the alarm and cleared it.")
- except Exception as e:
- log.exception("Error acknowledging alarm")
- raise e
-
- elif message.key == "update_alarm_request":
- # Update alarm configurations
- alarm_details = values['alarm_update_request']
- alarm_id = None
- status = False
- try:
- alarm_id = self.update_alarm(
- alarm_endpoint, auth_token, alarm_details, vim_config, verify_ssl)
- status = True
- except Exception as e:
- log.exception("Error updating alarm")
- raise e
- finally:
- self._generate_and_send_response('update_alarm_response',
- alarm_details['correlation_id'],
- status=status,
- alarm_id=alarm_id)
-
- else:
- log.debug("Unknown key, no action will be performed")
-
- def configure_alarm(self, alarm_endpoint, auth_token, values, vim_config, verify_ssl):
- """Create requested alarm in Aodh."""
- url = "{}/v2/alarms/".format(alarm_endpoint)
-
- # Check if the desired alarm is supported
- alarm_name = values['alarm_name'].lower()
- metric_name = values['metric_name'].lower()
- resource_id = values['resource_uuid']
-
- if metric_name not in METRIC_MAPPINGS.keys():
- raise KeyError("Metric {} is not supported.".format(metric_name))
-
- #FIXME
- if 'granularity' in vim_config and 'granularity' not in values:
- values['granularity'] = vim_config['granularity']
- payload = self.check_payload(values, metric_name, resource_id,
- alarm_name)
- new_alarm = Common.perform_request(
- url, auth_token, req_type="post", payload=payload, verify_ssl=verify_ssl)
- return json.loads(new_alarm.text)['alarm_id']
-
- def delete_alarm(self, endpoint, auth_token, alarm_id, verify_ssl):
- """Delete alarm function."""
- url = "{}/v2/alarms/%s".format(endpoint) % alarm_id
-
- result = Common.perform_request(
- url, auth_token, req_type="delete", verify_ssl=verify_ssl)
- if str(result.status_code) == "404":
- raise ValueError("Alarm {} doesn't exist".format(alarm_id))
-
- def list_alarms(self, endpoint, auth_token, list_details, verify_ssl):
- """Generate the requested list of alarms."""
- url = "{}/v2/alarms/".format(endpoint)
- a_list, name_list, sev_list, res_list = [], [], [], []
-
- # TODO(mcgoughh): for now resource_id is a mandatory field
- # Check for a resource id
- try:
- resource = list_details['resource_uuid']
- name = list_details['alarm_name'].lower()
- severity = list_details['severity'].lower()
- sev = SEVERITIES[severity]
- except KeyError as e:
- log.warning("Missing parameter for alarm list request: %s", e)
- raise e
-
- # Perform the request to get the desired list
- try:
- result = Common.perform_request(
- url, auth_token, req_type="get", verify_ssl=verify_ssl)
-
- if result is not None:
- # Get list based on resource id
- for alarm in json.loads(result.text):
- rule = alarm['gnocchi_resources_threshold_rule']
- if resource == rule['resource_id']:
- res_list.append(alarm['alarm_id'])
-
- # Generate specified listed if requested
- if name is not None and sev is not None:
- log.info("Return a list of %s alarms with %s severity.",
- name, sev)
- for alarm in json.loads(result.text):
- if name == alarm['name']:
- name_list.append(alarm['alarm_id'])
- for alarm in json.loads(result.text):
- if sev == alarm['severity']:
- sev_list.append(alarm['alarm_id'])
- name_sev_list = list(set(name_list).intersection(sev_list))
- a_list = list(set(name_sev_list).intersection(res_list))
- elif name is not None:
- log.info("Returning a %s list of alarms.", name)
- for alarm in json.loads(result.text):
- if name == alarm['name']:
- name_list.append(alarm['alarm_id'])
- a_list = list(set(name_list).intersection(res_list))
- elif sev is not None:
- log.info("Returning %s severity alarm list.", sev)
- for alarm in json.loads(result.text):
- if sev == alarm['severity']:
- sev_list.append(alarm['alarm_id'])
- a_list = list(set(sev_list).intersection(res_list))
- else:
- log.info("Returning an entire list of alarms.")
- a_list = res_list
- else:
- log.info("There are no alarms!")
- response_list = []
- for alarm in json.loads(result.text):
- if alarm['alarm_id'] in a_list:
- response_list.append(alarm)
- return response_list
-
- except Exception as e:
- log.exception("Failed to generate alarm list: ")
- raise e
-
- def update_alarm_state(self, endpoint, auth_token, alarm_id, verify_ssl):
- """Set the state of an alarm to ok when ack message is received."""
- url = "{}/v2/alarms/%s/state".format(endpoint) % alarm_id
- payload = json.dumps("ok")
-
- Common.perform_request(
- url, auth_token, req_type="put", payload=payload, verify_ssl=verify_ssl)
-
- def update_alarm(self, endpoint, auth_token, values, vim_config, verify_ssl):
- """Get alarm name for an alarm configuration update."""
- # Get already existing alarm details
- url = "{}/v2/alarms/%s".format(endpoint) % values['alarm_uuid']
-
- # Gets current configurations about the alarm
- result = Common.perform_request(
- url, auth_token, req_type="get")
- alarm_name = json.loads(result.text)['name']
- rule = json.loads(result.text)['gnocchi_resources_threshold_rule']
- alarm_state = json.loads(result.text)['state']
- resource_id = rule['resource_id']
- metric_name = [key for key, value in six.iteritems(METRIC_MAPPINGS) if value == rule['metric']][0]
-
- # Generates and check payload configuration for alarm update
- if 'granularity' in vim_config and 'granularity' not in values:
- values['granularity'] = vim_config['granularity']
- payload = self.check_payload(values, metric_name, resource_id,
- alarm_name, alarm_state=alarm_state)
-
- # Updates the alarm configurations with the valid payload
- update_alarm = Common.perform_request(
- url, auth_token, req_type="put", payload=payload, verify_ssl=verify_ssl)
-
- return json.loads(update_alarm.text)['alarm_id']
-
- def check_payload(self, values, metric_name, resource_id,
- alarm_name, alarm_state=None):
- """Check that the payload is configuration for update/create alarm."""
- cfg = Config.instance()
- # Check state and severity
-
- severity = 'critical'
- if 'severity' in values:
- severity = values['severity'].lower()
-
- if severity == "indeterminate":
- alarm_state = "insufficient data"
- if alarm_state is None:
- alarm_state = "ok"
-
- statistic = values['statistic'].lower()
-
- granularity = cfg.OS_DEFAULT_GRANULARITY
- if 'granularity' in values:
- granularity = values['granularity']
-
- resource_type = 'generic'
- if 'resource_type' in values:
- resource_type = values['resource_type'].lower()
-
- # Try to configure the payload for the update/create request
- # Can only update: threshold, operation, statistic and
- # the severity of the alarm
- rule = {'threshold': values['threshold_value'],
- 'comparison_operator': values['operation'].lower(),
- 'metric': METRIC_MAPPINGS[metric_name],
- 'resource_id': resource_id,
- 'resource_type': resource_type,
- 'aggregation_method': STATISTICS[statistic],
- 'granularity': granularity, }
- payload = json.dumps({'state': alarm_state,
- 'name': alarm_name,
- 'severity': SEVERITIES[severity],
- 'type': 'gnocchi_resources_threshold',
- 'gnocchi_resources_threshold_rule': rule,
- 'alarm_actions': [cfg.OS_NOTIFIER_URI],
- 'repeat_actions': True}, sort_keys=True)
- return payload
-
- def get_alarm_state(self, endpoint, auth_token, alarm_id):
- """Get the state of the alarm."""
- url = "{}/v2/alarms/%s/state".format(endpoint) % alarm_id
-
- alarm_state = Common.perform_request(
- url, auth_token, req_type="get")
- return json.loads(alarm_state.text)
-
- def check_for_metric(self, auth_token, metric_endpoint, metric_name, resource_id, verify_ssl):
- """
- Checks if resource has a specific metric. If not, throws exception.
- :param auth_token: OpenStack auth token
- :param metric_endpoint: OpenStack metric endpoint
- :param metric_name: Metric name
- :param resource_id: Resource UUID
- :return: Metric details from resource
- :raise Exception: Could not retrieve metric from resource
- """
- try:
- url = "{}/v1/resource/generic/{}".format(metric_endpoint, resource_id)
- result = Common.perform_request(
- url, auth_token, req_type="get", verify_ssl=verify_ssl)
- resource = json.loads(result.text)
- metrics_dict = resource['metrics']
- return metrics_dict[METRIC_MAPPINGS[metric_name]]
- except Exception as e:
- log.exception("Desired Gnocchi metric not found:", e)
- raise e
-
- def _generate_and_send_response(self, key, correlation_id, **kwargs):
- try:
- resp_message = self._response.generate_response(
- key, cor_id=correlation_id, **kwargs)
- log.info("Response Message: %s", resp_message)
- self._producer.publish_alarm_response(
- key, resp_message)
- except Exception as e:
- log.exception("Response creation failed:")
- raise e
projects / osm / MON.git / blobdiff