Munin contributed plugins

#!/bin/sh

#

# Copyright (C) 2010 Michele Petrazzo <michele.petrazzo@gmail.com>

#

# This program 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; version 2 dated June,

# 1991.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

#

# Python (2.5+) version of the plugin to monitor ping times. 

# Evolution from the standard shipped with munin by adding a ceil.

#

# Thanks to "Jimmy Olsen" for the base.

#

# Parameters:

#

#       ping_args      - Arguments to ping (default "-c 2")

#       ping_args2     - Arguments after the host name (required for Solaris)

#       ping           - Ping program to use

#       host           - Host to ping

#

# Arguments for Solaris:

#      ping_args      -s

#      ping_args2     56 2

#

file_host=`basename $0 | sed 's/^ping_ceil_//g'`

host=${host:-${file_host:-www.google.com}}

max_ping="250" # Leave empty if not need or an integer (in ms)

test -z "$ping" && ping="ping"

test -z "$ping_args" && ping_args="-c 2"

cmd="$ping $ping_args $ping_args2"

if [ "$1" = "config" ]; then

    echo "graph_title Ping times to $host"

    echo 'graph_args --base 1000 -l 0'

    echo 'graph_vlabel seconds'

    echo 'graph_category network'

    echo 'graph_info This graph shows ping RTT statistics.'

    echo "ping.label $host"

    echo "ping.info Ping RTT statistics for $host."

    echo 'ping.draw LINE2'

    echo 'packetloss.label packet loss'

    echo 'packetloss.graph no'

    exit 0

fi

(

cat << EOF

import os

from subprocess import Popen, PIPE

bash_cmd = "$cmd"

command = bash_cmd.split() + ["$host"]

max_ping = float("$max_ping") if "$max_ping" else 0

try:

    c = Popen(command, stdout=PIPE, stderr=PIPE)

except OSError:

    print "command error:", command

    raise

out, err = c.communicate()

for line in out.split("\n"):

    if "packet loss" in line:

        print "packetloss.value", line.split(",")[2].split()[0].replace("%", "")

    elif "rtt min/avg/max/mdev" in line:

        v = float(line.split("=")[1].split("/")[1])

        v = min(v, max_ping) if max_ping else v

        print "ping.value", "%.6f" % (v / 1000)

EOF

) | python