Created
November 4, 2014 23:14
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A simple pattern for init scripts...just for munna.
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#!/bin/sh | |
### BEGIN INIT INFO | |
# Provides: SERVICE_NAME | |
# Required-Start: $local_fs $remote_fs $network $syslog | |
# Required-Stop: $local_fs $remote_fs $network $syslog | |
# Default-Start: 2 4 5 | |
# Default-Stop: 0 1 6 | |
# Short-Description: SERVICE_DESCRIPTION | |
# Description: starts named service using start-stop-daemon | |
### END INIT INFO | |
SVC_HOME=/opt/myService | |
SVC_USER=myServiceUser | |
SVC_LOG=/var/log/myService.log | |
SVC_NAME=myService | |
SVC_COMMAND="java -jar /opt/myService/executable.jar" | |
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:$SVC_HOME | |
startServer(){ | |
echo -n "Starting $SVC_NAME: " | |
echo "$0 start" >> $SVC_LOG | |
chown $SVC_USER: $SVC_LOG | |
chown $SVC_USER: $SVC_HOME -R | |
statusCheck && echo "Service is already running." && exit 0 | |
su \ | |
-c "cd $SVC_HOME; nohup $SVC_COMMAND &>>$SVC_LOG &" \ | |
-l $SVC_USER || { | |
echo "error starting $SVC_NAME." | |
exit 1 | |
} | |
prettySleep 5 | |
} | |
stopServer(){ | |
echo -n "Stopping $SVC_NAME: " | |
echo "$0 stop" >> $SVC_LOG | |
statusCheck || echo "Service is already stopped." && exit 0 | |
for pid in "$(ps aux 2>/dev/null | grep -v grep | grep -v init | grep $SVC_COMMAND | awk '{print $2}')";do | |
echo -n " kill process: $pid" | |
kill -9 $pid 2> /dev/null || { | |
echo "[FAILED]" | |
exit 1 | |
} | |
echo "SERVICE STOPPED" >> $SVC_LOG | |
echo "[OK]" | |
done | |
} | |
serviceCheck(){ | |
#Return 0 if running, 1 if not. | |
echo "Checking status" | |
} | |
prettySleep(){ | |
echo "waiting...";for i in $(seq 1 1 $1); do echo -n ".";sleep 1;done;echo " " | |
} | |
case "$1" in | |
start) | |
startServer | |
;; | |
stop) | |
stopServer | |
;; | |
restart) | |
stopServer | |
startServer | |
;; | |
status) | |
serviceCheck | |
;; | |
*) | |
echo "Usage: $NAME {start|stop|restart|status}" >&2 | |
STATE=1 | |
;; | |
esac |
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