e1a1faec28
This updates the entrypoint script and the plugins included with the nagios image executable Change-Id: Iaeb2fad62ac213b74637dadc329e7ea304602ab8 Signed-off-by: Steve Wilkerson <sw5822@att.com>
111 lines
3.9 KiB
Python
Executable File
111 lines
3.9 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2017 The Openstack-Helm Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Examples:
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# /usr/lib/nagios/plugins/check_exporter_health_metric.py --exporter_api 172.17.0.1:9100/metrics --health_metric go_info --critical 2 --warning 1
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# Output:
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# Warning: go_info metric is a warning value of 1(go_info{version="go1.9.1"})
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import argparse
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import sys
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import requests
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import re
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STATE_OK = 0
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STATE_WARNING = 1
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STATE_CRITICAL = 2
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STATE_UNKNOWN = 3
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def main():
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parser = argparse.ArgumentParser(
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description='Nagios plugin to query prometheus exporter and monitor metrics')
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parser.add_argument(
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'--exporter_api',
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metavar='--exporter_api',
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type=str,
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required=True,
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help='exporter location with scheme and port')
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parser.add_argument('--health_metric', metavar='--health_metric', type=str,
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required=False, default="health_status",
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help='Name of health metric')
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parser.add_argument('--critical', metavar='--critical', type=int,
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required=True,
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help='Value to alert critical')
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parser.add_argument('--warning', metavar='--warning', type=int,
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required=False,
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help='Value to alert warning')
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args = parser.parse_args()
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metrics, error_messages = query_exporter_metric(
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args.exporter_api, args.health_metric)
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if error_messages:
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print(
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"Unknown: unable to query metrics. {}".format(
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",".join(error_messages)))
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sys.exit(STATE_UNKNOWN)
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criticalMessages = []
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warningMessages = []
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for key, value in metrics.iteritems():
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if value == args.critical:
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criticalMessages.append(
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"Critical: {metric_name} metric is a critical value of {metric_value}({detail})".format(
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metric_name=args.health_metric, metric_value=value, detail=key))
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elif args.warning and value == args.warning:
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warningMessages.append(
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"Warning: {metric_name} metric is a warning value of {metric_value}({detail})".format(
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metric_name=args.health_metric, metric_value=value, detail=key))
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if criticalMessages:
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print(",".join(criticalMessages))
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sys.exit(STATE_CRITICAL)
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elif warningMessages:
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print(",".join(warningMessages))
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sys.exit(STATE_WARNING)
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else:
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print("OK: {metric_name} metric has a OK value({detail})".format(
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metric_name=args.health_metric, detail=str(metrics)))
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sys.exit(STATE_OK)
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def query_exporter_metric(exporter_api, metric_name):
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error_messages = []
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metrics = dict()
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try:
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response = requests.get(include_schema(exporter_api), verify=False) # nosec
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line_item_metrics = re.findall(
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"^{}.*".format(metric_name),
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response.text,
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re.MULTILINE)
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for metric in line_item_metrics:
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metric_with_labels, value = metric.split(" ")
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metrics[metric_with_labels] = float(value)
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except Exception as e:
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error_messages.append(
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"ERROR retrieving ceph exporter api {}".format(
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str(e)))
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return metrics, error_messages
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def include_schema(api):
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if api.startswith("http://") or api.startswith("https://"):
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return api
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else:
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return "http://{}".format(api)
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if __name__ == '__main__':
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sys.exit(main())
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