checks/bluecat_dhcp

   1 #!/usr/bin/python
   2 # -*- encoding: utf-8; py-indent-offset: 4 -*-
   3 # +------------------------------------------------------------------+
   4 # |             ____ _               _        __  __ _  __           |
   5 # |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
   6 # |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
   7 # |           | |___| | | |  __/ (__|   <    | |  | | . \            |
   8 # |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
   9 # |                                                                  |
  10 # | Copyright Mathias Kettner 2013             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 factory_settings["bluecat_dhcp"] = {
  28     "oper_states": {
  29         "warning": [2, 3, 4],
  30         "critical": [5],
  31     },
  32 }
  33
  34
  35 def inventory_bluecat_dhcp(info):
  36     # Check if DHCP is not stopped on at least one host
  37     for _node, oper_state, _leases in info:
  38         if oper_state != '2':
  39             return [(None, None)]
  40
  41
  42 def check_bluecat_dhcp(item, params, info):
  43     oper_states = {
  44         1: "running normally",
  45         2: "not running",
  46         3: "currently starting",
  47         4: "currently stopping",
  48         5: "fault",
  49         None: "unknown",
  50     }
  51
  52     ok_on_node = False
  53     states = {}
  54     state = 0
  55     oper_state = None
  56
  57     # Collect  states of nodes
  58     for node, oper_state, leases in info:
  59         oper_state, leases_sec = map(int, (oper_state, leases))
  60         temp_state = 0
  61         if oper_state in params['oper_states']['warning']:
  62             state = max(state, 1)
  63             temp_state = 1
  64         elif oper_state in params['oper_states']['critical']:
  65             state = 2
  66             temp_state = 2
  67         else:
  68             # If node one ok, the total check is ok
  69             ok_on_node = node
  70         # Only needed in cluster:
  71         states[node] = {
  72             'oper_state': oper_states[oper_state],
  73             'leases_sec': leases_sec,
  74             'state': temp_state
  75         }
  76
  77     # Are we in a Cluster?
  78     if len(info) > 1:
  79         if ok_on_node:
  80             node = ok_on_node
  81             # One Node is OK:
  82             yield 0, "DHCP is %s on %s" % (states[node]['oper_state'], node)
  83             yield 0, '%s Leases per second' % (states[node]['leases_sec']), [
  84                 ('leases', states[node]['leases_sec'])
  85             ]
  86         else:
  87             # None of the nodes is ok:
  88             for node, data in states.items():
  89                 yield data['state'], "%s on %s" % (data['oper_state'], node)
  90         return
  91
  92     # Default behavior without Cluster
  93     yield state, "DHCP is %s" % oper_states[oper_state]
  94     yield 0, '%s Leases per second' % leases_sec, [('leases', leases_sec)]
  95
  96
  97 check_info["bluecat_dhcp"] = {
  98     "check_function": check_bluecat_dhcp,
  99     "inventory_function": inventory_bluecat_dhcp,
 100     "node_info": True,
 101     "service_description": "DHCP",
 102     "has_perfdata": True,
 103     "default_levels_variable": "bluecat_dhcp",
 104     "group": "bluecat_dhcp",
 105     "snmp_scan_function": lambda oid: oid(".1.3.6.1.2.1.1.2.0") == ".1.3.6.1.4.1.13315.2.1",
 106     "snmp_info": (
 107         ".1.3.6.1.4.1.13315.3.1.1.2.1",
 108         [
 109             1,  # dhcpOperState
 110             3,  # dhcpLeaseStatsSuccess
 111         ])
 112 }