checks/check_mk

   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 #   .--only_from-----------------------------------------------------------.
  28 #   |                       _            __                                |
  29 #   |            ___  _ __ | |_   _     / _|_ __ ___  _ __ ___             |
  30 #   |           / _ \| '_ \| | | | |   | |_| '__/ _ \| '_ ` _ \            |
  31 #   |          | (_) | | | | | |_| |   |  _| | | (_) | | | | | |           |
  32 #   |           \___/|_| |_|_|\__, |___|_| |_|  \___/|_| |_| |_|           |
  33 #   |                         |___/_____|                                  |
  34 #   '----------------------------------------------------------------------'
  35
  36 # Target value for agent's IP access configuration. Only if this
  37 # is not None, the inventory will create services
  38 check_mk_only_from_default = None
  39
  40
  41 def check_only_from(_no_item, _no_params, _no_info):
  42     return 3, '''This has been included in the service "Check_MK" (see long output for details).
  43 The functionality of this service has been incorporated in the "Check_MK" service.
  44  The corresponding global config option "check_mk_only_from_default"
  45  will no longer work; please remove it from your main.mk file if
  46  you have been using this service.
  47  From now on this feature can be configured via WATO using the
  48  ruleset "Allowed IP addresses for agent access" - the same rule that
  49  will be used for the agent bakery (if available).
  50  The check state will be displayed as part of the "Check_MK" sercice.
  51 '''
  52
  53
  54 check_info["check_mk.only_from"] = {
  55     'check_function': check_only_from,
  56     'inventory_function': lambda info: [],
  57     'service_description': 'Check_MK Agent Access',
  58 }
  59
  60 #.
  61 #   .--agent_update--------------------------------------------------------.
  62 #   |                           _                      _       _           |
  63 #   |     __ _  __ _  ___ _ __ | |_    _   _ _ __   __| | __ _| |_ ___     |
  64 #   |    / _` |/ _` |/ _ \ '_ \| __|  | | | | '_ \ / _` |/ _` | __/ _ \    |
  65 #   |   | (_| | (_| |  __/ | | | |_   | |_| | |_) | (_| | (_| | ||  __/    |
  66 #   |    \__,_|\__, |\___|_| |_|\__|___\__,_| .__/ \__,_|\__,_|\__\___|    |
  67 #   |          |___/              |_____|   |_|                            |
  68 #   '----------------------------------------------------------------------'
  69
  70 # Example output from agent:
  71 # <<<check_mk>>>
  72 # AgentUpdate: last_check 1447777834.22 last_update 1447776761.52 aghash e33d0cebcf7404d9 error None
  73
  74
  75 def inventory_cmk_agent_update(info):
  76     for line in info:
  77         if line[0] == "AgentUpdate:":
  78             return [(None, {})]
  79
  80
  81 def check_cmk_agent_update(_no_item, _no_params, info):
  82     for line in info:
  83         if line[0] == "AgentUpdate:":
  84             parsed = {}
  85             parts = line[1:]
  86             while parts:
  87                 key = parts[0]
  88                 if key == "error":
  89                     value = " ".join(parts[1:])
  90                     parts = []
  91                 else:
  92                     value = parts[1]
  93                     if value == "None":
  94                         value = None
  95                     parts = parts[2:]
  96                 parsed[key] = value
  97
  98             now = time.time()
  99
 100             if parsed["error"] != "None":
 101                 yield 1, "error: %s" % parsed["error"]
 102             else:
 103                 yield 0, "no errors"
 104
 105             if parsed["last_check"]:
 106                 try:
 107                     last_check = float(parsed["last_check"])
 108                     age = now - last_check
 109                     # Currently there is no crit level
 110                     warn = 2 * 3600 * 24
 111                     if age > warn:
 112                         state = 1
 113                     else:
 114                         state = 0
 115                     if state:
 116                         levels_text = " (warn at %s)" % (get_age_human_readable(warn))
 117                     else:
 118                         levels_text = ""
 119                     yield state, "last update check: " + get_timestamp_human_readable(
 120                         parsed["last_check"]) + levels_text
 121                 except:
 122                     yield 1, "no successful connect to server yet"
 123
 124             if parsed["last_update"]:
 125                 yield 0, "last agent update: %s" % get_timestamp_human_readable(
 126                     parsed["last_update"])
 127
 128             if parsed["aghash"]:
 129                 yield 0, "agent configuration: %s" % parsed["aghash"][:8]
 130
 131             return
 132
 133
 134 check_info["check_mk.agent_update"] = {
 135     'check_function': check_cmk_agent_update,
 136     'inventory_function': inventory_cmk_agent_update,
 137     'service_description': 'Check_MK Agent'
 138 }