9ff50d6c76ada0476b50d3ef8ecacf5d8e36d111
1 # -*- coding: utf-8 -*-
3 # Copyright 2018 Whitestack, LLC
4 # *************************************************************
6 # This file is part of OSM Monitoring module
7 # All Rights Reserved to Whitestack, LLC
9 # Licensed under the Apache License, Version 2.0 (the "License"); you may
10 # not use this file except in compliance with the License. You may obtain
11 # a copy of the License at
13 # http://www.apache.org/licenses/LICENSE-2.0
15 # Unless required by applicable law or agreed to in writing, software
16 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
17 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
18 # License for the specific language governing permissions and limitations
20 # For those usages not covered by the Apache License, Version 2.0 please
21 # contact: bdiaz@whitestack.com or glavado@whitestack.com
27 from osm_mon
.core
.config
import Config
28 from osm_mon
.evaluator
.backends
.base
import BaseBackend
30 log
= logging
.getLogger(__name__
)
32 OSM_METRIC_PREFIX
= 'osm_'
35 class PrometheusBackend(BaseBackend
):
37 def __init__(self
, config
: Config
):
38 super().__init
__(config
)
41 def get_metric_value(self
, metric_name
, nsr_id
, vdur_name
, vnf_member_index
):
42 query_section
= "query={0}{{ns_id=\"{1}\",vdu_name=\"{2}\",vnf_member_index=\"{3}\"}}".format(
43 OSM_METRIC_PREFIX
+ metric_name
, nsr_id
, vdur_name
, vnf_member_index
)
44 request_url
= self
.conf
.get('prometheus', 'url') + "/api/v1/query?" + query_section
45 log
.info("Querying Prometheus: %s", request_url
)
46 r
= requests
.get(request_url
, timeout
=int(self
.conf
.get('global', 'request_timeout')))
47 if r
.status_code
== 200:
48 json_response
= r
.json()
49 if json_response
['status'] == 'success':
50 result
= json_response
['data']['result']
52 metric_value
= float(result
[0]['value'][1])
53 log
.info("Metric value: %s", metric_value
)
58 log
.warning("Prometheus response is not success. Got status %s", json_response
['status'])
60 log
.warning("Error contacting Prometheus. Got status code %s: %s", r
.status_code
, r
.text
)