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- #!/usr/bin/env python3
- #
- # Copyright (c) 2017-2020 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.
- from flask import Flask
- from flask import Response
- import json
- import CLEUCreds
- from gevent.pywsgi import WSGIServer
- from subprocess import run
- import shlex
- import re
- from cleu.config import Config as C
- CACHE_FILE = "/home/jclarke/cpnr_metrics.dat"
- PORT = 8085
- app = Flask("CPNR Stats Fetcher")
- COMMANDS = {"df -h /": {"pattern": r"(\d+)%", "metrics": ["diskUtilization"]}}
- @app.route("/metrics")
- def get_metrics():
- global COMMANDS
- output = ""
- for server in C.CPNR_SERVERS:
- for command in list(COMMANDS.keys()):
- res = run(shlex.split("ssh -2 root@{} {}".format(server, command)), capture_output=True)
- if res.returncode != 0:
- print(
- "ERROR: Failed to execute {} on {}: out='{}', err='{}'".format(
- command, server, res.stdout.decode("utf-8").strip(), res.stderr.decode("utf-8").strip()
- )
- )
- continue
- m = re.search(COMMANDS[command]["pattern"], res.stdout.decode("utf-8").strip())
- if m:
- i = 1
- for metric in COMMANDS[command]["metrics"]:
- output += '{}{{server="{}"}} {}\n'.format(metric, server, m.group(i))
- return Response(output, mimetype="text/plain")
- if __name__ == "__main__":
- # app.run(host='10.100.253.13', port=8081, threaded=True)
- http_server = WSGIServer((C.WSGI_SERVER, PORT), app)
- http_server.serve_forever()
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