vitrage/vitrage/datasources/nagios/driver.py

107 lines
3.7 KiB
Python

# Copyright 2016 - Nokia
#
# 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 collections import namedtuple
from oslo_config import cfg
from oslo_log import log
import requests
from vitrage.common.constants import DatasourceProperties as DSProps
from vitrage.datasources.alarm_driver_base import AlarmDriverBase
from vitrage.datasources.nagios.config import NagiosConfig
from vitrage.datasources.nagios import NAGIOS_DATASOURCE
from vitrage.datasources.nagios.parser import NagiosParser
from vitrage.datasources.nagios.properties import NagiosProperties\
as NagiosProps
from vitrage.datasources.nagios.properties import NagiosTestStatus
CONF = cfg.CONF
LOG = log.getLogger(__name__)
class NagiosDriver(AlarmDriverBase):
ServiceKey = namedtuple('ServiceKey', ['hostname', 'service'])
def __init__(self):
super(NagiosDriver, self).__init__()
self.config = NagiosConfig()
def _vitrage_type(self):
return NAGIOS_DATASOURCE
def _alarm_key(self, alarm):
return self.ServiceKey(hostname=alarm[NagiosProps.RESOURCE_NAME],
service=alarm[NagiosProps.SERVICE])
def _get_alarms(self):
nagios_user = CONF.nagios.user
nagios_password = CONF.nagios.password
nagios_url = CONF.nagios.url
if not nagios_user:
return []
if not nagios_password:
LOG.warning('Nagios password is not defined')
return []
if not nagios_url:
LOG.warning('Nagios url is not defined')
return []
session = requests.Session()
payload = {'host': 'all', 'limit': '0'}
response = session.get(nagios_url,
params=payload,
auth=(nagios_user, nagios_password))
if response.status_code == requests.codes.ok:
nagios_services = NagiosParser().parse(response.text)
return nagios_services
else:
LOG.error('Failed to get nagios data. Response code: %s',
response.status_code)
return []
def _enrich_alarms(self, alarms):
for alarm in alarms:
# based on nagios configuration file, convert nagios host name
# to vitrage resource type and name
alarm[DSProps.ENTITY_TYPE] = NagiosProps.NAGIOS
nagios_host = alarm[NagiosProps.RESOURCE_NAME]
vitrage_resource = self.config.get_vitrage_resource(nagios_host)
alarm[NagiosProps.RESOURCE_TYPE] = \
vitrage_resource[0] if vitrage_resource else None
alarm[NagiosProps.RESOURCE_NAME] = \
vitrage_resource[1] if vitrage_resource else None
def _is_erroneous(self, alarm):
return alarm and alarm[NagiosProps.STATUS] != NagiosTestStatus.OK
def _status_changed(self, alarm1, alarm2):
return alarm1 and alarm2 and \
not alarm1[NagiosProps.STATUS] == alarm2[NagiosProps.STATUS]
def _is_valid(self, alarm):
return alarm[NagiosProps.RESOURCE_TYPE] is not None and \
alarm[NagiosProps.RESOURCE_NAME] is not None
@staticmethod
def should_delete_outdated_entities():
return True