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- #!/usr/bin/env python
- #
- # Copyright (c) 2017-2023 Joe Clarke <jclarke@cisco.com>
- # All rights reserved.
- #
- # Redistribution and use in source and binary forms, with or without
- # modification, are permitted provided that the following conditions
- # are met:
- # 1. Redistributions of source code must retain the above copyright
- # notice, this list of conditions and the following disclaimer.
- # 2. Redistributions in binary form must reproduce the above copyright
- # notice, this list of conditions and the following disclaimer in the
- # documentation and/or other materials provided with the distribution.
- #
- # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- # SUCH DAMAGE.
- import os
- import json
- import requests
- from requests.packages.urllib3.exceptions import InsecureRequestWarning # type: ignore
- requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
- import CLEUCreds # type: ignore
- from cleu.config import Config as C # type: ignore
- CACHE_FILE = "/home/jclarke/dhcp_metrics.dat"
- CACHE_FILE_TMP = CACHE_FILE + ".tmp"
- CNR_HEADERS = {"Accept": "application/json"}
- CNR_AUTH = (CLEUCreds.CPNR_USERNAME, CLEUCreds.CPNR_PASSWORD)
- def get_metrics():
- global CNR_HEADERS, CNR_AUTH
- res = []
- for server in C.CDNS_SERVERS:
- url = "https://{}:8443/web-services/rest/stats/DHCPServer".format(server)
- try:
- response = requests.request(
- "GET", url, params={"nrClass": "DHCPServerActivityStats"}, auth=CNR_AUTH, headers=CNR_HEADERS, verify=False
- )
- response.raise_for_status()
- except Exception as e:
- print(f"Failed to get stats {e}")
- continue
- j = response.json()
- for key in j.keys():
- if type(j[key]) is not dict:
- res.append('{}{{server="{}"}} {}'.format(key, server, j[key]))
- return res
- if __name__ == "__main__":
- response = get_metrics()
- with open(CACHE_FILE_TMP, "w") as fd:
- json.dump(response, fd, indent=4)
- os.rename(CACHE_FILE_TMP, CACHE_FILE)
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