checks/f5_bigip_cluster

   1 #!/usr/bin/python
   2 # -*- encoding: utf-8; py-indent-offset: 4 -*-
   3 # +------------------------------------------------------------------+
   4 # |             ____ _               _        __  __ _  __           |
   5 # |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
   6 # |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
   7 # |           | |___| | | |  __/ (__|   <    | |  | | . \            |
   8 # |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
   9 # |                                                                  |
  10 # | Copyright Mathias Kettner 2014             mk@mathias-kettner.de |
  11 # +------------------------------------------------------------------+
  12 #
  13 # This file is part of Check_MK.
  14 # The official homepage is at http://mathias-kettner.de/check_mk.
  15 #
  16 # check_mk is free software;  you can redistribute it and/or modify it
  17 # under the  terms of the  GNU General Public License  as published by
  18 # the Free Software Foundation in version 2.  check_mk is  distributed
  19 # in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
  20 # out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
  21 # PARTICULAR PURPOSE. See the  GNU General Public License for more de-
  22 # tails. You should have  received  a copy of the  GNU  General Public
  23 # License along with GNU Make; see the file  COPYING.  If  not,  write
  24 # to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
  25 # Boston, MA 02110-1301 USA.
  26
  27 # Agent / MIB output
  28 # see: 1.3.6.1.4.1.3375.2.1.1.1.1.6.0
  29 # F5-BIGIP-SYSTEM-MIB::sysAttrConfigsyncState (STRING)
  30 # "-1 - uninitialized or disabled config state"
  31
  32 # F5 nodes need to be ntp synced otherwise status reports might be wrong.
  33
  34
  35 def inventory_f5_bigip_cluster(info):
  36     # run inventory unless we found a device in unconfigured state
  37     # don't need to loop over the input as there's only one status
  38     if len(info) == 1 and not (info[0][0].startswith("-1") or info[0][0] == ''):
  39         return [(None, None)]
  40     return []
  41
  42
  43 def check_f5_bigip_cluster(item, _no_params, info):
  44     cfgsyncstate = info[0][0]
  45
  46     # Split the snmp supplied status string to the numeric and textual status
  47     statusid, statustxt = cfgsyncstate.split(" - ")
  48
  49     # Possible states:
  50     # -1    unconfigured,           ok only if original status
  51     #                               otherwise this would mean something is heavily broken?
  52     # 0     in sync,                ok
  53     # 1/2   one system outdated,    warn
  54     # 3     both systems outdated,  crit   (config split brain)
  55
  56     if statusid == "0":
  57         return (0, statustxt)
  58     elif statusid == "-1":
  59         return (2, statustxt)
  60     elif statusid == "1" or statusid == "2":
  61         return (1, statustxt)
  62     elif statusid == "3":
  63         return (2, statustxt)
  64     return (3, "unexpected output from SNMP Agent")
  65
  66 check_info["f5_bigip_cluster"] = {
  67     'check_function':          check_f5_bigip_cluster,
  68     'inventory_function':      inventory_f5_bigip_cluster,
  69     'service_description':     'Config Sync status',
  70     'snmp_info':               ('.1.3.6.1.4.1.3375.2.1.1.1.1', [
  71         6 # sysAttrConfigsyncState
  72     ]),
  73     'snmp_scan_function':
  74      lambda oid: '.1.3.6.1.4.1.3375.2' in oid(".1.3.6.1.2.1.1.2.0") \
  75         and "big-ip" in oid(".1.3.6.1.4.1.3375.2.1.4.1.0").lower() \
  76         and int(oid(".1.3.6.1.4.1.3375.2.1.4.2.0").split('.')[0]) < 11,
  77 }