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moved mbots to an own repository git://git.socialnerds.org/mbots.git

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David Starzengruber 2011-07-11 00:53:52 +02:00
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commit d6764c5d06
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41
mbots/README.please
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this is my little mobot project.
the concept is not to spend hundreds of hours to implement some massive
monitoring tool like nagios or something like this.
instead i want to use some simple message/notification scripts
which exactly tell me what i need to know.
the first thing i have here is the df bot. it sends me a short jabber message
when one or more disks on the serving machine reaching a preconfigured threshold
(example: 90% disk usage).
another tool i find really useful is the pingbot (ping.sh)
it works pretty much the same as the dfbot.
feel free to use or improve this handy tools!
=== install notes ===
1. copy the scrip somewhere on your machine
you get the df.sh on gitorious.org
http://gitorious.org/sn/scripts/trees/master/mobots/df.sh
2. create the configfile
use the df.conf.sample to create a config and put this file anywhere on the same machine
http://gitorious.org/sn/scripts/trees/master/mobots/df.conf.sample
3. create a cronjob for it
add a line like this to your /etc/crontab
*/2 * * * * root /bin/bash --login /path/to/the/script/df.sh /path/to/configfile/df.conf >> /path/to/logfile/df.log
or (if you use the default configpath /etc/mobots)
*/5 * * * * root /bin/bash --login /path/to/script/df.sh >> /var/log/mobots/df.log
the logdirectory must exist
after this you have to restart your cron with something like
service cron restart
of course there are several ways to create a cronjob but this is probably the easiest way
any questions? mail me! (david@socialnerds.org)

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mbots/df.conf.sample
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## df monitoring jabber bot configfile
## here i suggest you put the name of the machine you running this script on
hostname="somemachine.example.com"
## jabber config
watchdogs="max@muster.com moriz@jabber.anotherdomain.com"
user="jabber-username"
pass="jabber-password"
server="jabber-server"
#port="5222" # uncomment if you want to use a specific port
## define disks you wanna check? (whitespace seperated)
disks="hda1 hda2 hdd1"
## here the disks thresholds
thresholds="80 90 95"

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mbots/df.sh
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#!/bin/bash
###################################################
## ##
## disk_free jabber monitoring bot ##
## Author: david@socialnerds.org ##
## v0.2 ##
## ##
###################################################
## timestamp for logfile
timestamp=$(date '+%d %B %Y %H:%M')
echo "info: starting df bot $timestamp"
## check if sendxmpp is installed
if [ $(aptitude search sendxmpp | awk '{print $1}') = "i" ]; then
echo "info: sendxmpp found"
else
if [ $(whoami) = "root" ]; then
apt-get install sendxmpp
else
echo "error: permission denied"
echo "info: install sendxmpp or run this scrip as superuser"
exit 1
fi
fi
## set and load configfile
if [ -z $1 ]; then
configfile="/etc/mobots/df.conf"
if [ -f $configfile ]; then
source $configfile
else
echo "error: no config file $configfile"
exit 1
fi
else
configfile=$1
if [ -f $configfile ]; then
source $configfile
else
echo "error: no config file $configfile"
exit 1
fi
fi
## check sendxmpp config
if [ -f ~/.sendxmpprc ]; then
echo "info: jabber config found in ~/.sendxmpprc"
else
if [ -z $port ]; then
port="5222"
else
echo "info: using port $port"
fi
echo "$user@$server:$port $pass" > ~/.sendxmpprc
chmod 600 ~/.sendxmpprc
echo "info: created sendxmpp config in ~/.sendxmpprc"
fi
## check disks
set -- $disks
i="1"
for var in "$@"
do
data=$(df -Ph | grep $var | sed -e 's/%//g' | awk '{print $5}')
datathreshold=$(echo $thresholds | awk '{print $'$i'}')
if [ $data -gt $datathreshold ]; then
echo "info: $var reached threshold with $data%, sending notification to $watchdogs"
echo "$hostname: $var is running out of space: $data%" | sendxmpp -r dfbot $watchdogs
fi
let i++
done
## exiting
echo "info: done"
exit 0

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mbots/df_bot.conf.sample
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# **** df_bot configfile ****
# here i suggest you put the name of the machine you running this script on
hostname="somemachine.example.com"
## define disks you wanna check? (whitespace seperated)
disks="hda1 hda2 hdd1"
## here the disks thresholds
thresholds="80 90 95"

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mbots/df_bot.sh
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#!/bin/bash
###################################################
## ##
## disk_free monitoring bot ##
## ##
###################################################
# **** in script config section ****
version="0.3_alpha"
author="david@socialnerds.org"
logwhat="df_bot"
# **** configfile section ****
disks="sda1"
thresholds="90"
bashlibpath="/home/david/Documents/code/bashlib"
# logging
loglevel="4"
log2syslog="1"
log2file="0"
#logfile="/var/log/mbots.log"
log2stdout="1"
# **** bash trap initialisation ****
trap bashtrap INT
# **** load bashlib ****
if [ -d $bashlibpath ]; then
source $bashlibpath/main
#source $bashlibpath/update
source $bashlibpath/logengine
log debug "preflight - bashlib loaded"
else
echo "ERROR: bashlib not found"
exit 1
fi
exit 0
## timestamp for logfile
#timestamp=$(date '+%d %B %Y %H:%M')
#echo "info: starting df bot $timestamp"
## check if sendxmpp is installed
#if [ $(aptitude search sendxmpp | awk '{print $1}') = "i" ]; then
# echo "info: sendxmpp found"
#else
# if [ $(whoami) = "root" ]; then
# apt-get install sendxmpp
# else
# echo "error: permission denied"
# echo "info: install sendxmpp or run this scrip as superuser"
# exit 1
# fi
#fi
## set and load configfile
#if [ -z $1 ]; then
# configfile="/etc/mobots/df.conf"
# if [ -f $configfile ]; then
# source $configfile
# else
# echo "error: no config file $configfile"
# exit 1
# fi
#else
# configfile=$1
# if [ -f $configfile ]; then
# source $configfile
# else
# echo "error: no config file $configfile"
# exit 1
# fi
#fi
## check sendxmpp config
#if [ -f ~/.sendxmpprc ]; then
# echo "info: jabber config found in ~/.sendxmpprc"
#else
#
# if [ -z $port ]; then
# port="5222"
# else
# echo "info: using port $port"
# fi
#
# echo "$user@$server:$port $pass" > ~/.sendxmpprc
# chmod 600 ~/.sendxmpprc
# echo "info: created sendxmpp config in ~/.sendxmpprc"
#fi
## check disks
set -- $disks
i="1"
for var in "$@"
do
data=$(df -Ph | grep $var | sed -e 's/%//g' | awk '{print $5}')
datathreshold=$(echo $thresholds | awk '{print $'$i'}')
if [ $data -gt $datathreshold ]; then
echo "info: $var reached threshold with $data%, sending notification to $watchdogs"
echo "$hostname: $var is running out of space: $data%" | sendxmpp -r dfbot $watchdogs
fi
let i++
done
## exiting
#echo "info: done"
exit 0
# **** end of script ****

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mbots/mem.sh
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#!/bin/bash
# used mem
umem=$(free -m | grep buffers/cache | awk '{print $3}')
tmem=$(free -m | grep Mem: | awk '{print $2}')
percent=$((100*$(free -m | grep buffers/cache | awk '{print $3}')/$(free -m | grep Mem: | awk '{print $2}')))
echo "Used memory: $percent% ($umem"MB"/$tmem"MB")"

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mbots/ping.conf.sample
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# a whitespace seperated list of ip addresses or fqdnames
dest="192.168.1.13 somemachine.example.com"
# jabber configuration
user="jid"
server="jabber-server"
#port="" ## if you want to use a special port (default: 5222)
pass="jabber-password"
res="pingbot"
watchdogs="someuser@jabber.example.com anotheruser@example.com" ## whitespace seperated list of JIDs

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mbots/ping.sh
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#!/bin/bash
## ## ## ## ## ## ## ## ##
## ##
## jabber ping bot ##
## ##
## v0.1 ##
## ##
## author: david@socialnerds.org ##
## ##
## ## ## ## ## ## ## ## ##
## timestamp for logfile
timestamp=$(date '+%d %B %Y %H:%M')
echo "info: starting jabber ping bot $timestamp"
## check if sendxmpp is installed
if [ $(aptitude search sendxmpp | awk '{print $1}') = "i" ]; then
echo "info: sendxmpp found"
else
if [ $(whoami) = "root" ]; then
apt-get install sendxmpp
else
echo "error: permission denied"
echo "info: install sendxmpp or run this scrip as superuser"
exit 1
fi
fi
## set and load configfile
if [ -z $1 ]; then
configfile="/etc/mobots/ping.conf"
if [ -f $configfile ]; then
source $configfile
else
echo "error: no config file $configfile"
exit 1
fi
else
configfile=$1
if [ -f $configfile ]; then
source $configfile
else
echo "error: no config file $configfile"
exit 1
fi
fi
## check sendxmpp config
if [ -f ~/.sendxmpprc ]; then
echo "info: jabber config found in ~/.sendxmpprc"
else
if [ -z $port ]; then
port="5222"
else
echo "info: using port $port"
fi
echo "$user@$server:$port $pass" > ~/.sendxmpprc
chmod 600 ~/.sendxmpprc
echo "info: created sendxmpp config in ~/.sendxmpprc"
fi
## run the actual ping
set -- $dest
for var in "$@"
do
#result=$(ping -c 05 $var | grep transmitted | awk '{print $4}')
ping -c 03 $var >/dev/null 2>&1
errorcode=$?
if [ $errorcode = "0" ]; then
echo "info: $var is responding"
else
if [ $errorcode = "1" ]; then
echo "alert: $var is not responding"
## sending jabber message
echo "alert: $var is not responding
ping errorcode: $errorcode" | sendxmpp -r $res $watchdogs
else
if [ $errorcode = "2" ]; then
echo "alert: $var cannot be resolved"
## sending jabber message
echo "alert: $var cannot be resolved
ping errorcode: $errorcode" | sendxmpp -r $res $watchdogs
fi
fi
fi
done
## the end
exit 0