+++ /dev/null
-"""Send alarm info from Aodh to SO via MON."""
-
-import json
-import logging as log
-
-from collections import OrderedDict
-
-from kafka import KafkaConsumer
-
-from plugins.OpenStack.common import Common
-
-
-SEVERITIES = {
- "WARNING": "low",
- "MINOR": "low",
- "MAJOR": "moderate",
- "CRITICAL": "critical",
- "INDETERMINATE": "critical"}
-
-
-class Alarming(object):
- """Receives alarm info from Aodh."""
-
- def __init__(self):
- """Create the aodh_receiver instance."""
- self._common = Common()
- self.auth_token = None
- self.endpoint = None
- self.resp_status = None
-
- # TODO(mcgoughh): Remove hardcoded kafkaconsumer
- # Initialize a generic consumer object to consume message from the SO
- server = {'server': 'localhost:9092', 'topic': 'alarm_request'}
- self._consumer = KafkaConsumer(server['topic'],
- group_id='osm_mon',
- bootstrap_servers=server['server'])
-
- # TODO(mcgoughh): Initialize a producer to send messages bask to the SO
-
- def alarming(self):
- """Consume info from the message bus to manage alarms."""
- # Check the alarming functionlity that needs to be performed
- for message in self._consumer:
-
- values = json.loads(message.value)
- vim_type = values['vim_type'].lower()
-
- if vim_type == "openstack":
- log.info("Alarm action required: %s" % (message.topic))
-
- if message.key == "create_alarm_request":
- # Configure/Update an alarm
- alarm_details = values['alarm_create_request']
-
- # Generate an auth_token and endpoint
- auth_token = self._common._authenticate(
- tenant_id=alarm_details['tenant_uuid'])
- endpoint = self._common.get_endpoint("alarming")
-
- alarm_id = self.configure_alarm(
- endpoint, auth_token, alarm_details)
-
- # TODO(mcgoughh): will send an acknowledge message back on
- # the bus via the producer
- if alarm_id is not None:
- self.resp_status = True
- log.debug("A valid alarm was found/created: %s",
- self.resp_status)
- else:
- self.resp_status = False
- log.debug("Failed to create desired alarm: %s",
- self.resp_status)
-
- elif message.key == "list_alarm_request":
- auth_token = self._common._authenticate()
- endpoint = self._common.get_endpoint("alarming")
-
- # List all of the alarms
- alarm_list = self.list_alarms(endpoint, auth_token)
-
- # TODO(mcgoughh): send a repsonse back to SO
- if alarm_list is not None:
- self.resp_status = True
- log.info("A list of alarms was generated: %s",
- alarm_list)
- else:
- self.resp_status = False
- log.warn("Failed to generae an alarm list")
-
- elif message.key == "delete_alarm_request":
- # Delete the specified alarm
- auth_token = self._common._authenticate()
- endpoint = self._common.get_endpoint("alarming")
-
- alarm_id = values['alarm_delete_request']['alarm_uuid']
-
- response = self.delete_alarm(
- endpoint, auth_token, alarm_id)
-
- # TODO(mcgoughh): send a response back on the bus
- if response is True:
- log.info("Requested alarm has been deleted: %s",
- alarm_id)
- else:
- log.warn("Failed to delete requested alarm.")
-
- elif message.key == "acknowledge_alarm":
- # Acknowledge that an alarm has been dealt with by the SO
- # Set its state to ok
- auth_token = self._common._authenticate()
- endpoint = self._common.get_endpoint("alarming")
-
- alarm_id = values['ack_details']['alarm_uuid']
-
- response = self.update_alarm_state(
- endpoint, auth_token, alarm_id)
-
- if response is True:
- log.info("Status has been updated for alarm, %s.",
- alarm_id)
- else:
- log.warn("Failed update the state of requested alarm.")
-
- elif message.key == "update_alarm_request":
- # Update alarm configurations
- auth_token = self._common._authenticate()
- endpoint = self._common.get_endpoint("alarming")
-
- alarm_details = values['alarm_update_request']
-
- alarm_id = self.update_alarm(
- endpoint, auth_token, alarm_details)
-
- # TODO(mcgoughh): send a response message to the SO
- if alarm_id is not None:
- log.info("Alarm configuration was update correctly.")
- else:
- log.warn("Unable to update the specified alarm")
-
- else:
- log.debug("Unknown key, no action will be performed")
- else:
- log.info("Message topic not relevant to this plugin: %s",
- message.topic)
-
- return
-
- def get_alarm_id(self, endpoint, auth_token, alarm_name):
- """Get a list of alarms that exist in Aodh."""
- alarm_id = None
- url = "{}/v2/alarms/".format(endpoint)
-
- # TODO(mcgoughh): will query on resource_id once it has been
- # implemented need to create the query field when creating
- # the alarm
- query = OrderedDict([("q.field", 'name'), ("q.op", "eq"),
- ("q.value", alarm_name)])
-
- result = self._common._perform_request(
- url, auth_token, req_type="get", params=query)
-
- try:
- alarm_id = json.loads(result.text)[0]['alarm_id']
- log.info("An existing alarm was found: %s", alarm_id)
- return alarm_id
- except Exception:
- log.debug("Alarm doesn't exist, needs to be created.")
- return alarm_id
-
- def configure_alarm(self, endpoint, auth_token, values):
- """Create requested alarm in Aodh."""
- url = "{}/v2/alarms/".format(endpoint)
-
- alarm_name = values['alarm_name']
-
- # Confirm alarm doesn't exist
- alarm_id = self.get_alarm_id(endpoint, auth_token, alarm_name)
- if alarm_id is None:
- # Try to create the alarm
- try:
- metric_name = values['metric_name']
- resource_id = values['resource_uuid']
- payload = self.check_payload(values, metric_name, resource_id,
- alarm_name)
- new_alarm = self._common._perform_request(
- url, auth_token, req_type="post", payload=payload)
-
- return json.loads(new_alarm.text)['alarm_id']
- except Exception as exc:
- log.warn("Alarm creation could not be performed: %s", exc)
- return alarm_id
- else:
- log.warn("This alarm already exists. Try an update instead.")
- return None
-
- def delete_alarm(self, endpoint, auth_token, alarm_id):
- """Delete alarm function."""
- url = "{}/v2/alarms/%s".format(endpoint) % (alarm_id)
-
- result = False
- try:
- self._common._perform_request(url, auth_token, req_type="delete")
- return True
- except Exception as exc:
- log.warn("Failed to delete alarm: %s because %s.", alarm_id, exc)
- return result
-
- def list_alarms(self, endpoint, auth_token,
- alarm_name=None, resource_id=None, severity=None):
- """Generate the requested list of alarms."""
- result = None
- if (alarm_name and resource_id and severity) is None:
- # List all alarms
- url = "{}/v2/alarms/".format(endpoint)
-
- try:
- result = self._common._perform_request(
- url, auth_token, req_type="get")
- return json.loads(result.text)
- except Exception as exc:
- log.warn("Unable to generate alarm list: %s", exc)
-
- return result
- else:
- # TODO(mcgoughh): support more specific lists
- log.debug("Requested list is unavailable")
-
- return result
-
- def update_alarm_state(self, endpoint, auth_token, alarm_id):
- """Set the state of an alarm to ok when ack message is received."""
- result = False
-
- url = "{}/v2/alarms/%s/state".format(endpoint) % alarm_id
- payload = json.dumps("ok")
-
- try:
- result = self._common._perform_request(
- url, auth_token, req_type="put", payload=payload)
- return True
- except Exception as exc:
- log.warn("Unable to update alarm state: %s", exc)
- return result
-
- def update_alarm(self, endpoint, auth_token, values):
- """Get alarm name for an alarm configuration update."""
- # Get already existing alarm details
- url = "{}/v2/alarms/%s".format(endpoint) % values['alarm_uuid']
-
- try:
- result = self._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 = rule['metric']
- except Exception as exc:
- log.warn("Failed to retreive existing alarm info: %s.\
- Can only update OSM created alarms.", exc)
- return None
-
- # Genate and check payload configuration for alarm update
- payload = self.check_payload(values, metric_name, resource_id,
- alarm_name, alarm_state=alarm_state)
-
- if payload is not None:
- try:
- update_alarm = self._common._perform_request(
- url, auth_token, req_type="put", payload=payload)
-
- return json.loads(update_alarm.text)['alarm_id']
- except Exception as exc:
- log.warn("Alarm update could not be performed: %s", exc)
- return None
- return None
-
- def check_payload(self, values, metric_name, resource_id,
- alarm_name, alarm_state=None):
- """Check that the payload is configuration for update/create alarm."""
- try:
- # Check state and severity
- severity = values['severity']
- if severity == "INDETERMINATE":
- alarm_state = "insufficient data"
-
- if alarm_state is None:
- alarm_state = "ok"
-
- # Try to configure the payload for the update/create request
- rule = {'threshold': values['threshold_value'],
- 'comparison_operator': values['operation'].lower(),
- 'metric': metric_name,
- 'resource_id': resource_id,
- 'resource_type': 'generic',
- 'aggregation_method': values['statistic'].lower()}
- payload = json.dumps({'state': alarm_state,
- 'name': alarm_name,
- 'severity': SEVERITIES[severity],
- 'type': 'gnocchi_resources_threshold',
- 'gnocchi_resources_threshold_rule': rule, })
- return payload
- except KeyError as exc:
- log.warn("Alarm is not configured correctly: %s", exc)
- return None
projects / osm / MON.git / blobdiff