Automasi konversi MRTG tradisional ke RRD tool

Ide graffiti ini muncul dari artikel D. N. Indra Haryawan di http://www.infofreebsd.org dan merupakan lanjutan graffiti saya sebelumnya.
Pemanfaatan rrdtool juga terilhami oleh tulisan pada site yang sama. (Maaf,.. saya lupa penulisnya)

Brief :
Bayangkan seandainya kita memiliki banyak host yang akan dimonitor via mrtg. Dan suatu saat kita harus mengupgrade-nya ke mode rrd yang di daemonized ?
Tentunya akan cukup merepotnya bila menanganinya satu persatu…
Nah loo… gimana donk ?
So… akan lebih baik kalo prosesnya di automatisasi… ya Gak ?

Step:
1. Download file 14all.cgi di http://my14all.sourceforge.net/
2. Letakkan file tersebut pada path yang sama dengan file *.cfg lainnya , misal di /etc/mrtg (terserah sih,.. tapi ini favorit saya)
3. Ganti nama file hasil download tersebut menjadi 14all.cgi (or whatever), dan edit setelah baris :
# (14all.cgi -> 14all.cfg)
diberikan :
$cfgfile = ‘/etc/mrtg/template-mrtg.cfg’;
baris tersebut akan di parsing dan direplace oleh script
4. BUat script back up dulu

#—————–start script———————


#!/bin/sh


echo -n “Enter Path to Back Up : ”


read THEPATH


echo “”


echo -n “Enter Name Of Archive : ”


read ARCNAME





tar -cf $ARCNAME.tar $THEPATH


gzip $ARCNAME.tar





echo “Done backup $THEPATH into $ARCNAME  ….”





#—————–end script———————

5. Run script di atas untuk membackup
6. Buat script conversi ini (jangan lupa edit seperlunya)

#—————–start script———————


#!/bin/sh


# This is my script to automatically convert convention mrtg .cfg files into rrd – daemonized mode


# I usually use /etc/mrtg as my mrtg-path config





DIR=$1





######################################################


# Use your own custom configuration by editing these





ENABLERRD1=”LogFormat: rrdtool”


ENABLERRD2=”PathAdd: /usr/local/mrtg-2/rrdtool/bin/”


ENABLERRD3=”LibAdd: /usr/local/mrtg-2/rrdtool/lib/perl/”


ENABLEDAEMONIZED=”RunAsDaemon: yes”


RRDYES=”RRD ENABLE”


RRDNO=”RRD DISABLE”


ENABLEDAEMONOK=”DAEMONIZED YES”


ENABLEDAEMONNO=”DAEMONIZED NO”


MRTGDIR=/var/www/htdocs/mrtg


CGIDIR=/var/www/cgi-bin


TEMPLATECGI=/etc/mrtg/14all.cgi


CFG=/etc/mrtg


KEYCGI=”14all”


MRTGBINPATH=”/usr/local/mrtg-2/bin/”


STRINGINDEX=”PES@Tnet POP Surabaya – MRTG ”


MKINDEXRRD=”/etc/mrtg/make-index-rrd”





####################################################


# Go To $CFG





echo “Change dir to” $(pwd)


cd $CFG








####################################################


# Back Up Or No





echo -n “Back Up old config ? [Y]” :


read ANSWER1


echo “”


if [ “$ANSWER1” = “” ]; then


	$ANSWER1 = “Y”


fi


echo $ANSWER1


if [ “$ANSWER1” = “Y” ]; then


	mkdir $CFG/backup


	cp *.cfg $CFG/backup


fi








####################################################


# Daemonizing-ing all .cfg





for a in $(ls $DIR *.cfg | grep cfg)


do


 DAEMONFILE=$(cat $a  | grep RunAsDaemon)


 if [ “$DAEMONFILE” = “” ]; then


        echo -n $a ” ”


	sleep 1


        echo $ENABLEDAEMONNO  “and now trying to enabled daemon mode in $a”


	echo $ENABLEDAEMONIZED >> $a


	sleep 1


 fi


 if [ ! “$DAEMONFILE” = “” ]; then


        echo -n $a ” ”


        echo $ENABLEDAEMONOK


 fi


done











####################################################


# RRD-ing all .cfg





for a in $(ls $DIR *.cfg | grep cfg)


do


 THISFILE=$(cat $a  | grep LogFormat)


 if [ “$THISFILE” = “” ]; then


        echo -n $a ” ”


        echo $RRDNO “and now trying to enabled rrd tool on $a”


	echo $ENABLERRD1 >> $a


	echo $ENABLERRD2 >> $a


	echo $ENABLERRD3 >> $a


	sleep 1


 fi


 if [ ! “$THISFILE” = “” ]; then


        echo -n $a ” ”


        echo $RRDYES


 fi


        sed ‘s/workDir/WorkDir/g’ $a > tmp


	mv tmp $a


done





echo “” > $MKINDEXRRD


echo “#!/bin/sh” > $MKINDEXRRD


chmod +x $MKINDEXRRD


for a in $(ls $DIR *.cfg | grep cfg)


do


 echo “”


 echo “Processing rrd cgi in $a”


 sed ‘s/template-mrtg.cfg/’$a’/g’ $TEMPLATECGI > $CGIDIR/$a.cgi


 chmod +x $CGIDIR/$a.cgi


 chown www.www $CGIDIR/$a.cgi


 OUTPUTDIR=$(cat $a | grep WorkDir | tail -1 | cut -c10-)


 echo “WorkDir : ” $OUTPUTDIR


 sleep 1


 echo “#$MRTGBINPATH/indexmaker –rrdviewer=/cgi-bin/$a.cgi $CFG/$a –enumerate –columns=2 –title=’$STRINGINDEX’ –output=$OUTPUTDIR/index.html” >> $MKINDEXRRD


 echo “#$MRTGBINPATH/indexmaker –rrdviewer=/cgi-bin/$a.cgi $a –enumerate –columns=2 –title=’$STRINGINDEX’ –output=$OUTPUTDIR/index.html”


 echo “”


done


echo “###################################################”


echo “There is file $MKINDEXRRD on your $CFG path. Edit this, and run to make rrd indexed automatically”


echo “###################################################”


exit 0











#—————–end script———————

7. Chmod file diatas,… misal nama filenya converter,.. chmod +x converter
8. Edit file /etc/mrtg/make-index-rrd, seperlunya
9. Run /etc/mrtg/make-index-rrd
10. Hapus semua rekaman mrtg di crond
11. Buat customized startup, (seperti pada tulisan terhadulu)

# ———- start of script ———-


#!/bin/sh


DIR=”/etc/mrtg”


STRING1=”/usr/local/mrtg-2/bin/mrtg /etc/mrtg”








case “$1” in





stop)


for c in $(ps ax | grep mrtg | cut -c0-5)


do


PID=$(echo $c)


kill -9 $PID


echo “Daemonized $PID Stopped”


done


rm -f $DIR/*.pid


rm -f $DIR/*_l*


exit 0


;;





start)


for a in $(ls $DIR | grep .cfg)


do


TORUN=$(echo $a)


echo -n “MRTG $TORUN ”


$STRING1/$TORUN &


echo “”


done


exit 0


;;


restart)


$0 stop


$0 start


exit $?


;;


*)


echo “Usage: `basename $0` { start | stop | restart}”


;;


esac


# ———- end of script ———-

12. Chmod agar executable, dan sesuiakan dengan distro anda
13. Run script terakhir ini, dan… voila….


Note: Terima kasih xenogears atas tulisan yang sangat menarik ini. Sering-sering nulis yah 🙂