OT Autorestart Daemon

[manuel220]

Hi ppl, I created a daemon to auto start or autorestart my server it works with the start stop status params. You will need to files:

/admin/updatepid.sh:

#!/bin/bash
#The path where to save the file, should be the same value in both scripts
OT_PID_FILE="/admin/yourserver.pid"

#Let's sleep the job to let the Server Starts, my server takes around 15 seconds, but I'm setting 40 seconds just in case
sleep 40

#Write The process id to the pid file
pgrep -f autorestarter.sh > ${OT_PID_FILE}
sleep 1
pgrep -P `cat ${OT_PID_FILE}` >> ${OT_PID_FILE}

Now the /admin/autorestarter.sh:

#!/bin/bash
#Pretty Simple stuff
while [ -e $1 ]
do
$2 > $3 2>&1
done

And now the main file
/etc/init.d/ot.sh:

#!/bin/bash

#chkconfig: 345 20 80
#description: Maven Continuum server

if [ -z "$1" ]; then
  echo "Please provide daemon command to run: start, stop, restart, status"
  exit 1
fi

OT_DIR="/yourserver"
OT_BINARY="./TheForgottenServer"
OT_NAME="yourserver OT"
OT_LOG="/yourserver/logs.log"
OT_PID_FILE="/admin/yourserver.pid"
OT_GET_PID_JOB="/admin/updatepid.sh"
OT_AUTORESTARTER="/admin/autorestarter.sh"

function start(){
    echo "Starting ${OT_NAME}..."
	touch ${OT_PID_FILE}
	cd $OT_DIR
	ulimit -c unlimited #To be able to debug when crashes
	sh ${OT_GET_PID_JOB} &
	sh ${OT_AUTORESTARTER} ${OT_PID_FILE} ${OT_BINARY} ${OT_LOG} &
    echo "${OT_NAME}... Started"
}

function stop(){
        if [ ! -e ${OT_PID_FILE} ]
        then
                echo "${OT_NAME} not Running"
                exit
        fi
    echo "Stopping ${OT_NAME}..."
        parentID=`head -1 ${OT_PID_FILE}`
        childID=`tail -1 ${OT_PID_FILE}`
        rm -f ${OT_PID_FILE}
        kill $parentID
        sleep 2
        kill $childID
    echo "Stopped."
}

function restart(){
    stop
    start
}

function status(){
    echo "Gathering ${OT_NAME} status..."
    if [ -f ${OT_PID_FILE} ]; then
        pid=`cat ${OT_PID_FILE}`
        processes=`ps -no-headers --pid $pid`
        if [ "$?" -ne "0" ]; then
            echo "${OT_NAME} process is not found, possible crash"
        else
            echo "${OT_NAME} is running:"
            echo "$processes"
            tail ${OT_LOG}
        fi
    else
        echo "${OT_NAME} is not started"
    fi
    echo "Done."
}

$1

Now, lets set it in the init scripts
CentOS:

chkconfig --add ot.sh

Debian:

update-rc.d ot.sh defaults

Now you can use any of these:

/etc/init.d/ot.sh start
/etc/init.d/ot.sh stop
/etc/init.d/ot.sh restart

Hope it works for you guys!!!

UPDATE: Updated a litte since it didn't worked in my CentOS 5.5 XD. Now its working!!!!

 

[Shirren]

I think my rl know