도전!

#! /bin/sh

# 해당 소스는 Jason Giedymin이 최초 작성하였고

# 제가 약간 수정했으며, 한글 주석을 달았습니다.

#

# Author:  Jason Giedymin

#          <jason.giedymin AT gmail.com>.

#

# Version: 2.0 02-NOV-2009 jason.giedymin AT gmail.com

# Notes: nginx init.d dash script for Ubuntu <=9.10.

# 

# This script's project home is:

# http://code.google.com/p/nginx-init-ubuntu/

#

#------------------------------------------------------------------------------

#                               MIT X11 License

#------------------------------------------------------------------------------

#

# Copyright (c) 2009 Jason Giedymin, http://Amuxbit.com formerly

#     http://AcronymLabs.com

#

# Permission is hereby granted, free of charge, to any person obtaining

# a copy of this software and associated documentation files (the

# "Software"), to deal in the Software without restriction, including

# without limitation the rights to use, copy, modify, merge, publish,

# distribute, sublicense, and/or sell copies of the Software, and to

# permit persons to whom the Software is furnished to do so, subject to

# the following conditions:

#

# The above copyright notice and this permission notice shall be

# included in all copies or substantial portions of the Software.

#

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE

# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION

# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION

# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

#------------------------------------------------------------------------------

#------------------------------------------------------------------------------

#                               Functions

#------------------------------------------------------------------------------

. /lib/lsb/init-functions

#------------------------------------------------------------------------------

#                               Consts

#------------------------------------------------------------------------------

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

DAEMON=/usr/local/nginx-1.2.6/sbin/nginx  #nginx 파일의 위치

PS="nginx"

PIDNAME="nginx" #lets you do $PS-slave

PIDFILE=$PIDNAME.pid                    #pid file

PIDSPATH=/usr/local/nginx-1.2.6/logs    #nginx.pid가 생성되는, --pid-path로 지정한 경로

DESCRIPTION="Nginx Server..."

RUNAS=root                              #user to run as

SCRIPT_OK=0                             #ala error codes

SCRIPT_ERROR=1                          #ala error codes

TRUE=1                                  #boolean

FALSE=0                                 #boolean

lockfile=/var/lock/subsys/nginx

NGINX_CONF_FILE="/usr/local/nginx-1.2.6/conf/nginx.conf"  #nginx.conf 파일 위치

#------------------------------------------------------------------------------

#                               Simple Tests

#------------------------------------------------------------------------------

#test if nginx is a file and executable

test -x $DAEMON || exit 0

# Include nginx defaults if available

if [ -f /etc/default/nginx ] ; then

        . /etc/default/nginx

fi

#set exit condition

#set -e

#------------------------------------------------------------------------------

#                               Functions

#------------------------------------------------------------------------------

setFilePerms(){

        if [ -f $PIDSPATH/$PIDFILE ]; then

                chmod 400 $PIDSPATH/$PIDFILE

        fi

}

configtest() {

$DAEMON -t -c $NGINX_CONF_FILE

}

getPSCount() {

return `pgrep -f $PS | wc -l`

}

isRunning() {

        if [ $1 ]; then

                pidof_daemon $1

                PID=$?

                if [ $PID -gt 0 ]; then

                        return 1

                else

                        return 0

                fi

        else

                pidof_daemon

                PID=$?

                if [ $PID -gt 0 ]; then

                        return 1

                else

                        return 0

                fi

        fi

}

#courtesy of php-fpm

wait_for_pid () {

        try=0

        while test $try -lt 35 ; do

                case "$1" in

                        'created')

                        if [ -f "$2" ] ; then

                                try=''

                                break

                        fi

                        ;;

                        'removed')

                        if [ ! -f "$2" ] ; then

                                try=''

                                break

                        fi

                        ;;

                esac

                #echo -n .

                try=`expr $try + 1`

                sleep 1

        done

}

status(){

isRunning

isAlive=$?

if [ "${isAlive}" -eq $TRUE ]; then

                echo "$PIDNAME found running with processes:  `pidof $PS`"

        else

                echo "$PIDNAME is NOT running."

        fi

}

removePIDFile(){

if [ $1 ]; then

                if [ -f $1 ]; then

               rm -f $1

       fi

        else

#Do default removal

if [ -f $PIDSPATH/$PIDFILE ]; then

               rm -f $PIDSPATH/$PIDFILE

       fi

        fi

}

start() {

        log_daemon_msg "Starting $DESCRIPTION"

isRunning

isAlive=$?

        if [ "${isAlive}" -eq $TRUE ]; then

                log_end_msg $SCRIPT_ERROR

        else

                start-stop-daemon --start --quiet --chuid $RUNAS --pidfile $PIDSPATH/$PIDFILE --exec $DAEMON \

                -- -c $NGINX_CONF_FILE

                setFilePerms

                log_end_msg $SCRIPT_OK

        fi

}

stop() {

log_daemon_msg "Stopping $DESCRIPTION"

isRunning

isAlive=$?

        if [ "${isAlive}" -eq $TRUE ]; then

                start-stop-daemon --stop --quiet --pidfile $PIDSPATH/$PIDFILE

wait_for_pid 'removed' $PIDSPATH/$PIDFILE

                if [ -n "$try" ] ; then

                        log_end_msg $SCRIPT_ERROR

                else

                        removePIDFile

               log_end_msg $SCRIPT_OK

                fi

        else

                log_end_msg $SCRIPT_ERROR

        fi

}

reload() {

configtest || return $?

log_daemon_msg "Reloading (via HUP) $DESCRIPTION"

        isRunning

        if [ $? -eq $TRUE ]; then

`killall -HUP $PS` #to be safe

                log_end_msg $SCRIPT_OK

        else

                log_end_msg $SCRIPT_ERROR

        fi

}

quietupgrade() {

log_daemon_msg "Peforming Quiet Upgrade $DESCRIPTION"

        isRunning

        isAlive=$?

        if [ "${isAlive}" -eq $TRUE ]; then

kill -USR2 `cat $PIDSPATH/$PIDFILE`

kill -WINCH `cat $PIDSPATH/$PIDFILE.oldbin`

isRunning

isAlive=$?

if [ "${isAlive}" -eq $TRUE ]; then

kill -QUIT `cat $PIDSPATH/$PIDFILE.oldbin`

wait_for_pid 'removed' $PIDSPATH/$PIDFILE.oldbin

                        removePIDFile $PIDSPATH/$PIDFILE.oldbin

log_end_msg $SCRIPT_OK

else

log_end_msg $SCRIPT_ERROR

log_daemon_msg "ERROR! Reverting back to original $DESCRIPTION"

kill -HUP `cat $PIDSPATH/$PIDFILE`

kill -TERM `cat $PIDSPATH/$PIDFILE.oldbin`

kill -QUIT `cat $PIDSPATH/$PIDFILE.oldbin`

wait_for_pid 'removed' $PIDSPATH/$PIDFILE.oldbin

                        removePIDFile $PIDSPATH/$PIDFILE.oldbin

log_end_msg $SCRIPT_ok

fi

        else

                log_end_msg $SCRIPT_ERROR

        fi

}

terminate() {

        log_daemon_msg "Force terminating (via KILL) $DESCRIPTION"

PIDS=`pidof $PS` || true

[ -e $PIDSPATH/$PIDFILE ] && PIDS2=`cat $PIDSPATH/$PIDFILE`

for i in $PIDS; do

if [ "$i" = "$PIDS2" ]; then

        kill $i

                        wait_for_pid 'removed' $PIDSPATH/$PIDFILE

removePIDFile

fi

done

log_end_msg $SCRIPT_OK

}

destroy() {

log_daemon_msg "Force terminating and may include self (via KILLALL) $DESCRIPTION"

killall $PS -q >> /dev/null 2>&1

log_end_msg $SCRIPT_OK

}

pidof_daemon() {

    PIDS=`pidof $PS` || true

    [ -e $PIDSPATH/$PIDFILE ] && PIDS2=`cat $PIDSPATH/$PIDFILE`

    for i in $PIDS; do

        if [ "$i" = "$PIDS2" ]; then

            return 1

        fi

    done

    return 0

}

case "$1" in

  start)

start

        ;;

  stop)

stop

        ;;

  restart|force-reload)

stop

sleep 1

start

        ;;

  reload)

$1

;;

  status)

status

;;

  configtest)

        $1

        ;;

  quietupgrade)

$1

;;

  terminate)

$1

;;

  destroy)

$1

;;

  *)

FULLPATH=/etc/init.d/$PS

echo "Usage: $FULLPATH {start|stop|restart|force-reload|status|configtest|quietupgrade|terminate|destroy}"

echo "       The 'destroy' command should only be used as a last resort." 

exit 1

;;

esac

exit 0

ctrl-z

> fg