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 🙂