案例十:shell编写nginx服务启动程序

使用源码包安装的Nginx没办法使用"service nginx start"或"/etc/init

使用源码包安装的Nginx没办法使用"service nginx start"或"/etc/init.d/nginx start"进行操作和控制,所以写了以下的服务控制脚本,该脚本有如下选项:

start    启动

stop    停止

reload   重载

restart    重启

status   状态

test    检查配置文件

脚本一

创建脚本文件并添加执行权限

touch /etc/init.d/nginx

chmod +x /etc/init.d/nginx

编写脚本内容

#!/bin/bash

# chkconfig: - 85 15

# description: Nginx server control script

# processname: nginx

# config file: /usr/local/nginx/conf/nginx.conf

# pid file: /usr/local/nginx/logs/nginx.pid

#

# eastmoney public tools

# version: v1.0.0

# create by XuHoo, 2016-9-14

#

# source function library

. /etc/rc.d/init.d/functions

NGINX_NAME="nginx"

NGINX_PROG="/usr/local/sbin/nginx"

NGINX_PID_FILE="/usr/local/nginx/logs/nginx.pid"

NGINX_CONF_FILE="/usr/local/nginx/conf/nginx.conf"

NGINX_LOCK_FILE="/var/lock/subsys/nginx.lock"

# check current user

[ "$USER" != "root" ] && exit 1

start() {

status

if [[ $? -eq 0 ]]; then

echo $"Nginx (PID $(cat $NGINX_PID_FILE)) already started."

return 1

fi

echo -n $"Starting $NGINX_NAME: "

daemon $NGINX_PROG -c $NGINX_CONF_FILE

retval=$?

echo

[ $retval -eq 0 ] && touch $NGINX_LOCK_FILE

return $retval

}

stop() {

status

if [[ $? -eq 1 ]]; then

echo "Nginx server already stopped."

return 1

fi

echo -n $"Stoping $NGINX_NAME: "

killproc $NGINX_PROG

retval=$?

echo

[ $retval -eq 0 ] && rm -f $NGINX_LOCK_FILE

return $retval

}

restart() {

stop

sleep 1

start

retval=$?

return $retval

}

reload() {

echo -n $"Reloading $NGINX_NAME: "

killproc $NGINX_PROG -HUP

retval=$?

echo

return $retval

}

status() {

netstat -anpt | grep "/nginx" | awk {print $6} &> /dev/null

if [[ $? -eq 0 ]]; then

if [[ -f $NGINX_LOCK_FILE ]]; then

return 0

else

return 1

fi

fi

return 1

}

_status() {

status

if [[ $? -eq 0 ]]; then

state=`netstat -anpt | grep "/nginx" | awk { print $6 }`

echo $"Nginx server status is: $state"

else

echo "Nginx server is not running"

fi

}

test() {

$NGINX_PROG -t -c $NGINX_CONF_FILE

retval=$?

return $retval

}

case "$1" in

start)

start

;;

stop)

stop

;;

reload)

reload

;;

restart)

restart

;;

status)

_status

;;

test)

test

;;

*)

echo "Usage: { start | stop | reload | restart | status | test }"

exit 1

esac

将脚本添加到系统服务并设置开机启动

chkconfig --add nginx

chkconfig --level 3 nginx on

脚本二

[[email protected] ~]# cd /usr/local/nginx/conf/

[[email protected] conf]# ls

fastcgi.conf fastcgi_params koi-utf mime.types nginx.conf scgi_params uwsgi_params win-utf

fastcgi.conf.default fastcgi_params.default koi-win mime.types.default nginx.conf.default scgi_params.default uwsgi_params.default

备份主配置文件

[[email protected] conf]# cp nginx.conf nginx.conf.origin

[[email protected] conf]# vim nginx.conf

#去除#pid logs/nginx.pid;前面#号

[[email protected] conf]# netstat -anpt | grep 80

tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 19108/nginx

[[email protected] conf]# kill -3 19108

[[email protected] conf]# netstat -anpt | grep 80

[[email protected] conf]# nginx

[[email protected] conf]# netstat -anpt | grep 80

tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 19864/nginx

[[email protected] conf]# cd ../logs/

[[email protected] logs]# ls

access.log error.log nginx.pid

[[email protected] logs]# cat nginx.pid

19864

编辑写服务脚本

#!/bin/bash

#chkconfig: 2345 99 20

#description:Nginx Server Control Scripts shell

PROG="/usr/local/nginx/sbin/nginx"

PIDF="/usr/local/nginx/logs/nginx.pid"

case "$1" in

start)

if [ -f $PIDF ];

then

echo "Nginx正在运行…"

else

$PROG

fi

;;

stop)

if [ -f $PIDF ];

then

kill -3 $(cat $PIDF)

rm -f $PIDF

else

echo "Nginx正在停止…"

fi

;;

restart)

$0 stop

$0 start

;;

reload)

if [ -f $PIDF ];

then

kill -1 $(cat $PIDF)

else

echo "Nginx正在停止…重新加载"

fi

;;

status)

if [ -f $PIDF ];

then

echo "Nginx正在运行"

else

echo "Nginx停止"

fi

;;

*)

echo "Usage: $0 (start|stop|restart|reload|status)"

exit 1

esac

exit 0

添加执行权限

[[email protected] ~]# chmod +x /etc/init.d/nginx

#将脚本添加到系统服务并设置开机启动

[[email protected] ~]# chkconfig --add nginx

添加为服务启动项

[[email protected] ~]# chkconfig --list nginx

nginx 0:关闭 1:关闭 2:启用 3:启用 4:启用 5:启用 6:关闭

[[email protected] ~]# chkconfig --level 3 nginx on

测试脚本是否能够执行

[[email protected] ~]# service nginx start

Nginx正在运行…

[[email protected] ~]# service nginx restart

[[email protected] ~]# service nginx stop

[[email protected] ~]# service nginx stop

Nginx正在停止…

[[email protected] ~]# service nginx start

[r[email protected] ~]# service nginx status

Nginx正在运行