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software/check_mk software/lvm software/monitoring programming/python
Содержание

# check_mk && LVM: мониторим разделы

В имплементации по-умолчанию мониторятся только группы разделов, но иногда надо мониторить и использование пространства в самих разделах. Сама проверка на стороне агента (плагин lvm) передает все нужные данные, но они игнорируются на стороне сервера. Выход - использовать следующий чек (расположен в /omd/{SITENAME}/versions/{VERSION}/share/check_mk/checks/lvm_lvs):

#!/usr/bin/python
# -*- encoding: utf-8; py-indent-offset: 4 -*-
# +------------------------------------------------------------------+
# |             ____ _               _        __  __ _  __           |
# |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
# |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
# |           | |___| | | |  __/ (__|   <    | |  | | . \            |
# |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
# |                                                                  |
# | Copyright Mathias Kettner 2017             mk@mathias-kettner.de |
# +------------------------------------------------------------------+
#
# This file is part of Check_MK.
# The official homepage is at http://mathias-kettner.de/check_mk.
#
# check_mk is free software;  you can redistribute it and/or modify it
# under the  terms of the  GNU General Public License  as published by
# the Free Software Foundation in version 2.  check_mk is  distributed
# in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
# out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
# PARTICULAR PURPOSE. See the  GNU General Public License for more de-
# tails. You should have  received  a copy of the  GNU  General Public
# License along with GNU Make; see the file  COPYING.  If  not,  write
# to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
# Boston, MA 02110-1301 USA.
 
 
# example output
 
factory_settings["lvm_lvs_default_levels"] = {
        "levels_data" : (80.0, 90.0),
        "levels_meta" : (80.0, 90.0),
}
 
def parse_lvm_lvs(info):
    parsed = {}
    for line in info:
        if not line[4] == "":
            item = "%s/%s/%s" % (line[1], line[4], line[0])
        else:
            item = "%s/%s" % (line[1], line[0])
 
        if not item in parsed and (not line[6] == ""):
            parsed[item] = {}
 
    for line in info:
        if not line[4] == "":
            item = "%s/%s/%s" % (line[1], line[4], line[0])
        else:
            item = "%s/%s" % (line[1], line[0])
 
        if item in parsed:
            parsed[item] = {"data" : line[6], "meta" : line[7]}
 
    return parsed
 
 
def inventory_lvm_lvs(parsed):
    for key, values in parsed.iteritems():
        yield ( key, {} )
 
 
def check_lvm_lvs(item, params, parsed):
    for key, values in parsed.iteritems():
        if item == key:
            for key, value in values.iteritems():
                if value == "":
                    continue
 
                value = float(value)
                warn, crit = params["levels_%s" % key]
                if value >= crit:
                    state = 2
                elif value >= warn:
                    state = 1
                else:
                    state = 0
 
                key = key[0].upper()+key[1:]
                yield 0, "%s usage: %.2f %%" % (key, value)
                if state:
                    yield state, "(warn/crit at %s/%s)" % (warn, crit)
 
 
check_info['lvm_lvs'] = {
    'parse_function'            : parse_lvm_lvs,
    'inventory_function'        : inventory_lvm_lvs,
    'check_function'            : check_lvm_lvs,
    'service_description'       : 'LVM LV Pool %s',
    'has_perfdata'              : True,
    'default_levels_variable'   : 'lvm_lvs_default_levels',
    'group'                     : 'lvm_lvs_pools',
}