[checkmk-commits] Check_MK Git: check_mk: lnx_bonding: new check for checking bonding interfaces on Linux

Module: check_mk Branch: master Commit: 596d07e38774ee6f6f15a4eddff52ba292e12624 URL: http://git.mathias-kettner.de/git/?p=check_mk.git;a=commit;h=596d07e38774ee… Author: Mathias Kettner &lt;mk(a)mathias-kettner.de&gt; Date: Thu Jan 31 16:34:51 2013 +0100 lnx_bonding: new check for checking bonding interfaces on Linux --- ChangeLog | 1 + agents/check_mk_agent.linux | 8 ++ checkman/lnx_bonding | 37 ++++++++ checks/lnx_bonding | 167 ++++++++++++++++++++++++++++++++++ web/plugins/wato/check_parameters.py | 23 +++++ 5 files changed, 236 insertions(+), 0 deletions(-) diff --git a/ChangeLog b/ChangeLog index 8834d50..edf97cf 100644 --- a/ChangeLog +++ b/ChangeLog @@ -25,6 +25,7 @@ * livestatus_status: new check for monitoring performance of monitoring * FIX: diskstat.include: fix computation of queue length on windows (thanks to K.H. Fiebig) + * lnx_bonding: new check for checking bonding interfaces on Linux Multisite: * Added comment painter to notification related views diff --git a/agents/check_mk_agent.linux b/agents/check_mk_agent.linux index 80e883c..decc537 100755 --- a/agents/check_mk_agent.linux +++ b/agents/check_mk_agent.linux @@ -161,6 +161,14 @@ then done fi + +# Current state of bonding interfaces +if [ -e /proc/net/bonding ] ; then + echo '<<<lnx_bonding:sep(58)>>>' + pushd /proc/net/bonding > /dev/null ; head -v -n 1000 * ; popd +fi + + # Number of TCP connections in the various states echo '<<<tcp_conn_stats>>>' netstat -nt | awk ' /^tcp/ { c[$6]++; } END { for (x in c) { print x, c[x]; } }' diff --git a/checkman/lnx_bonding b/checkman/lnx_bonding new file mode 100644 index 0000000..a610fb9 --- /dev/null +++ b/checkman/lnx_bonding @@ -0,0 +1,37 @@ +title: Check state of Bonding network interface on Linux +agents: linux +author: Mathias Kettner &lt;mk(a)mathias-kettner.de&gt; +license: GPL +distribution: check_mk +description: + This check checks the current state of a Linux bonding interface. + If the total bonding state of the interface is down, then the + check gets critical. If at least one slave interface is down + or not the expected slave is currently active, then the check + gets WARN. + +item: + The name of the bonding interface, etc {bond0}. + +examples: + # On linux hosts the lowest numbered eth interface should be + # the active one. + check_parameters = [ + ( { "expect_active" : "lowest" }, [ 'linux'], ALL_HOSTS, ALL_SERVICES ) + ] + +inventory: + One check per {active} bonding interface will be created. + +[parameters] +parameters (dict): Currently two parameters are available in this dict: + + {"primary"}: The assumed primary interface. This is for agents that do + not provide this information. In that case this is set automatically + by the inventory to the currently active interface. + + {"expect_active"}: Which interface should be expected active. This is one + of the following strings: {"primary"}: The interface set by the + parameter {"primary"}, {"lowest"}: The interface sorting lowest + alphabetically, {"ignore"}: Ignore which interace is active. + diff --git a/checks/lnx_bonding b/checks/lnx_bonding new file mode 100644 index 0000000..b252300 --- /dev/null +++ b/checks/lnx_bonding @@ -0,0 +1,167 @@ +#!/usr/bin/python +# -*- encoding: utf-8; py-indent-offset: 4 -*- +# +------------------------------------------------------------------+ +# | ____ _ _ __ __ _ __ | +# | / ___| |__ ___ ___| | __ | \/ | |/ / | +# | | | | '_ \ / _ \/ __| |/ / | |\/| | ' / | +# | | |___| | | | __/ (__| < | | | | . \ | +# | \____|_| |_|\___|\___|_|\_\___|_| |_|_|\_\ | +# | | +# | Copyright Mathias Kettner 2013 mk(a)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- +# ails. 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. + +# <<<lnx_bonding:sep(58)>>> +# ==> bond0 <== +# Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011) +# +# Bonding Mode: load balancing (round-robin) +# MII Status: down +# MII Polling Interval (ms): 0 +# Up Delay (ms): 0 +# Down Delay (ms): 0 +# +# ==> bond1 <== +# Ethernet Channel Bonding Driver: v3.2.5 (March 21, 2008) +# +# Bonding Mode: fault-tolerance (active-backup) +# Primary Slave: eth0 +# Currently Active Slave: eth0 +# MII Status: up +# MII Polling Interval (ms): 100 +# Up Delay (ms): 0 +# Down Delay (ms): 0 +# +# Slave Interface: eth4 +# MII Status: up +# Link Failure Count: 0 +# Permanent HW addr: 00:1b:21:49:d4:e4 +# +# Slave Interface: eth0 +# MII Status: up +# Link Failure Count: 1 +# Permanent HW addr: 00:26:b9:7d:89:2e + +def parse_lnx_bonding(info): + lines = iter(info) + bonds = {} + + # Skip header with bonding version + try: + bond = lines.next()[0].split()[1] + bonds[bond] = {} + while True: + # ==> bond0 <== + lines.next() # Skip Channel Bonding Driver + + # Parse global part + main = {} + bonds[bond]["main"] = main + while True: + line = lines.next() + main[line[0].strip()] = line[1].strip() + if line[0].strip() == "Down Delay (ms)": + break + + # Parse interfaces + interfaces = {} + bonds[bond]["interfaces"] = interfaces + while True: + line = lines.next() + if line[0].startswith("==>"): + bond = line[0].split()[1] + bonds[bond] = {} + break + elif line[0].strip() == "Slave Interface": + eth = line[1].strip() + interfaces[eth] = {} + elif line: + interfaces[eth][line[0].strip()] = ":".join(line[1:]).strip() + + except StopIteration: + pass + + # Now convert to generic dict, also used by other bonding checks + converted = {} + for bond, status in bonds.items(): + interfaces = {} + for eth, ethstatus in status["interfaces"].items(): + interfaces[eth] = { + "status" : ethstatus["MII Status"], + "hwaddr" : ethstatus.get("Permanent HW addr", ""), + "failures" : int(ethstatus["Link Failure Count"]), + } + converted[bond] = { + "status" : status["main"]["MII Status"], + "primary" : status["main"].get("Primary Slave"), + "active" : status["main"].get("Currently Active Slave"), + "mode" : status["main"]["Bonding Mode"].split('(')[0].strip(), + "interfaces" : interfaces, + } + return converted + + +def inventory_lnx_bonding(info): + parsed = parse_lnx_bonding(info) + return [ (bond, { "primary" : status["primary"]}) for (bond, status) in parsed.items() + if status["status"] == "up" ] + + +def check_lnx_bonding(item, params, info): + parsed = parse_lnx_bonding(info) + if item not in parsed: + return (3, "UNKNOWN - no such bonding interface") + status = parsed[item] + if status["status"] != "up": + return 2, "CRIT - interface is " + status["status"] + + infos = [] + state = 0 + for eth, slave in status["interfaces"].items(): + infos.append("%s/%s %s" % (eth, slave["hwaddr"], slave["status"])) + if slave["status"] != 'up': + state = 1 + infos[-1] += "(!)" + + primary = status.get("primary", params.get("primary")) + if primary: + infos.append("primary: " + primary) + active = status["active"] + if active: + infos.append("active: " + active) + + expect = params.get("expect_active", "ignore") + if expect in [ "primary", "lowest" ]: + if expect == "primary": + expected_active = primary + else: # "lowest" + slaves = status["interfaces"].keys() + slaves.sort() + expected_active = slaves[0] + if expected_active != active: + infos[-1] += "(!)" + infos.append("expected is %s" % expected_active) + state = 1 + + return state, nagios_state_names[state] + " - " + ", ".join(infos) + + +check_info['lnx_bonding'] = { + "check_function" : check_lnx_bonding, + "inventory_function" : inventory_lnx_bonding, + "service_description" : "Bonding Interface %s", + "group" : "bonding", +} diff --git a/web/plugins/wato/check_parameters.py b/web/plugins/wato/check_parameters.py index ccd96d2..e67bf33 100644 --- a/web/plugins/wato/check_parameters.py +++ b/web/plugins/wato/check_parameters.py @@ -1027,6 +1027,29 @@ checkgroups.append(( "dict") ) +register_check_parameters( + subgroup_networking, + "bonding", + _("Status of Linux bonding interfaces"), + Dictionary( + elements = [ + ( "expect_active", + DropdownChoice( + title = _("Warn on unexpected active interface"), + choices = [ + ( "ignore", _("ignore which one is active") ), + ( "primary", _("require primary interface to be active") ), + ( "lowest", _("require interface that sorts lowest alphabetically") ), + ] + ) + ), + ] + ), + TextAscii( + title = _("Name of the bonding interface"), + ), + "dict") + checkgroups.append(( subgroup_networking, "if",