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check_presto_environment.py
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check_presto_environment.py
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#!/usr/bin/env python
# coding=utf-8
# vim:ts=4:sts=4:sw=4:et
#
# Author: Hari Sekhon
# Date: 2017-09-22 15:45:06 +0200 (Fri, 22 Sep 2017)
#
# https://github.com/harisekhon/nagios-plugins
#
# License: see accompanying Hari Sekhon LICENSE file
#
# If you're using my code you're welcome to connect with me on LinkedIn
# and optionally send me feedback to help steer this or other code I publish
#
# https://www.linkedin.com/in/harisekhon
#
"""
Nagios Plugin to check the configured environment of a Presto SQL node via the API
Works on both Presto Coordinator and Worker APIs
Tested on:
- Presto Facebook versions: 0.152, 0.157, 0.167, 0.179, 0.185, 0.187, 0.188
- Presto Teradata distribution versions: 0.152, 0.157, 0.167, 0.179
"""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals
import os
import re
import sys
import traceback
srcdir = os.path.abspath(os.path.dirname(__file__))
libdir = os.path.join(srcdir, 'pylib')
sys.path.append(libdir)
try:
# pylint: disable=wrong-import-position
from harisekhon.utils import validate_regex
from harisekhon import RestNagiosPlugin
except ImportError as _:
print(traceback.format_exc(), end='')
sys.exit(4)
__author__ = 'Hari Sekhon'
__version__ = '0.1'
class CheckPrestoEnvironment(RestNagiosPlugin):
def __init__(self):
# Python 2.x
super(CheckPrestoEnvironment, self).__init__()
# Python 3.x
# super().__init__()
self.name = 'Presto'
self.default_port = 8080
self.auth = False
self.json = True
self.path = '/v1/service/presto/general'
self.msg = 'Presto SQL node environment = '
self.expected = None
def add_options(self):
super(CheckPrestoEnvironment, self).add_options()
self.add_opt('-e', '--expected', help='Expected environment setting (regex)')
def process_options(self):
super(CheckPrestoEnvironment, self).process_options()
self.expected = self.get_opt('expected')
if self.expected:
validate_regex(self.expected, 'expected environment')
def parse_json(self, json_data):
environment = json_data['environment']
self.msg += "'{0}'".format(environment)
if self.expected and not re.match(self.expected + '$', environment):
self.critical()
self.msg += " (expected '{0}')".format(self.expected)
if __name__ == '__main__':
CheckPrestoEnvironment().main()