环境：Centos 6.8
如果机器是Centos 7的，此脚本和设置开机自启动方法不适用。
首先确保nginx配置文件中：有pid目录
pid logs/nginx.pid;
1.1 编写nginx启动脚本
[root@devops01-web-53 ~]# cd /server/scripts
[root@devops01-web-53 scripts]# vim nginx.sh
#!/bin/bash
[ -f /etc/init.d/functions ] && . /etc/init.d/functions
pidfile=/application/nginx/logs/nginx.pid
Start_Nginx(){
if [ -f $pidfile ];then
echo "Nginx is running"
else
/application/nginx/sbin/nginx &>/dev/null
action "Nginx is Started" /bin/true
fi
}
Stop_Nginx(){
if [ -f $pidfile ];then
/application/nginx/sbin/nginx -s stop &>/dev/null
action "Nginx is Stopped" /bin/true
else
echo "Nginx is already Stopped"
fi
}
Reload_Nginx(){
if [ -f $pidfile ];then
/application/nginx/sbin/nginx -s reload &>/dev/null
action "Nginx is Reloaded" /bin/true
else
echo "Can't open $pidfile ,no such file or directory"
fi
}
case $1 in
start)
Start_Nginx
RETVAL=$?
;;
stop)
Stop_Nginx
RETVAL=$?
;;
restart)
Stop_Nginx
sleep 3
Start_Nginx
RETVAL=$?
;;
reload)
Reload_Nginx
RETVAL=$?
;;
*)
echo "USAGE: $0 {start|stop|reload|restart}"
exit 1
esac
exit $RETVAL
编写完成后测试：
[root@devops01-web-53 scripts]# sh nginx.sh
USAGE: nginx.sh {start|stop|reload|restart}
[root@devops01-web-53 scripts]# sh nginx.sh start
Nginx is Started [ OK ]
[root@devops01-web-53 scripts]# ps -ef|grep nginx
root 12765 1 0 00:46 ? 00:00:00 nginx: master process /application/nginx/sbin/nginx
www 12767 12765 0 00:46 ? 00:00:00 nginx: worker process
www 12768 12765 0 00:46 ? 00:00:00 nginx: worker process
www 12769 12765 0 00:46 ? 00:00:00 nginx: worker process
www 12770 12765 0 00:46 ? 00:00:00 nginx: worker process
root 12772 12648 0 00:46 pts/2 00:00:00 grep nginx
[root@devops01-web-53 scripts]# sh nginx.sh stop
Nginx is Stopped [ OK ]
[root@devops01-web-53 scripts]# sh nginx.sh reload
Can't open /application/nginx/logs/nginx.pid ,no such file or directory
[root@devops01-web-53 scripts]# sh nginx.sh restart
Nginx is already Stopped
Nginx is Started [ OK ]
[root@devops01-web-53 scripts]#
1.2 配置开机自启动
加入开机自启动：
[root@devops01-web-53 scripts]# cp nginx.sh /etc/init.d/nginx [root@devops01-web-53 scripts]# chmod +x /etc/init.d/nginx [root@devops01-web-53 scripts]# ll /etc/init.d/nginx -rwxr-xr-x. 1 root root 992 Jul 26 00:48 /etc/init.d/nginx [root@devops01-web-53 scripts]# chkconfig --list nginx service nginx does not support chkconfig [root@devops01-web-53 scripts]#
举例查看network开机自启动：
[root@devops01-web-53 scripts]# head /etc/init.d/network #! /bin/bash # # network Bring up/down networking # # chkconfig: 2345 10 90 # description: Activates/Deactivates all network interfaces configured to \ # start at boot time. # ### BEGIN INIT INFO # Provides: $network [root@devops01-web-53 scripts]# chkconfig --list network network 0:off 1:off 2:on 3:on 4:on 5:on 6:off [root@devops01-web-53 scripts]# chkconfig network on [root@devops01-web-53 scripts]# chkconfig --list network network 0:off 1:off 2:on 3:on 4:on 5:on 6:off [root@devops01-web-53 scripts]#
然后把这两行加入/etc/init.d/nginx脚本中
# chkconfig: 2345 10 90
# description: #添加描述服务信息
然后找开机自启动：开机顺序从第K30开始查找，发现K31没有被占用，那么nginx开机就使用K31（以此类推）
[root@devops01-web-53 ~]# ll /etc/rc.d/rc3.d/|grep 30
lrwxrwxrwx. 1 root root 17 May 14 02:40 K30postfix -> ../init.d/postfix
[root@devops01-web-53 ~]# ll /etc/rc.d/rc3.d/|grep 31
[root@devops01-web-53 ~]#
关机顺序：第60没有，就用60号
[root@devops01-web-53 ~]# ll /etc/rc.d/rc3.d/|grep 60
[root@devops01-web-53 ~]#
那么：nginx开机关机顺序就设置如下：30为开机顺序，60为关机顺序
# chkconfig: 2345 30 60
# description: Nginx is a http server or forward
放到/etc/init.d/nginx启动脚本中第2、3行中
如下所示：
[root@devops01-web-53 scripts]# vim /etc/init.d/nginx
#!/bin/bash
# chkconfig: 2345 30 60
# description: Nginx is a http server or forward
[ -f /etc/init.d/functions ] && . /etc/init.d/functions
pidfile=/application/nginx/logs/nginx.pid
Start_Nginx(){
if [ -f $pidfile ];then
echo "Nginx is running"
else
/application/nginx/sbin/nginx &>/dev/null
action "Nginx is Started" /bin/true
fi
}
Stop_Nginx(){
if [ -f $pidfile ];then
/application/nginx/sbin/nginx -s stop &>/dev/null
action "Nginx is Stopped" /bin/true
else
echo "Nginx is already Stopped"
fi
}
Reload_Nginx(){
if [ -f $pidfile ];then
/application/nginx/sbin/nginx -s reload &>/dev/null
action "Nginx is Reloaded" /bin/true
else
echo "Can't open $pidfile ,no such file or directory"
fi
}
case $1 in
start)
Start_Nginx
RETVAL=$?
;;
stop)
Stop_Nginx
RETVAL=$?
;;
restart)
Stop_Nginx
sleep 3
Start_Nginx
RETVAL=$?
;;
reload)
Reload_Nginx
RETVAL=$?
;;
*)
echo "USAGE: $0 {start|stop|reload|restart}"
exit 1
esac
exit $RETVAL
添加开机自启动：
[root@devops01-web-53 scripts]# chkconfig --add nginx
[root@devops01-web-53 scripts]# chkconfig --list nginx
nginx 0:off 1:off 2:on 3:on 4:on 5:on 6:off
[root@devops01-web-53 scripts]# chkconfig nginx off
[root@devops01-web-53 scripts]# chkconfig --list nginx
nginx 0:off 1:off 2:off 3:off 4:off 5:off 6:off
[root@devops01-web-53 scripts]# ll /etc/rc.d/rc3.d/|grep nginx
lrwxrwxrwx. 1 root root 15 Jul 26 01:07 K60nginx -> ../init.d/nginx #chkconfig nginx off实质就是创建此文件
[root@devops01-web-53 scripts]# chkconfig nginx on
[root@devops01-web-53 scripts]# ll /etc/rc.d/rc3.d/|grep nginx #chkconfig nginx on实质就是创建此文件
lrwxrwxrwx. 1 root root 15 Jul 26 01:09 S30nginx -> ../init.d/nginx
最后查看已开启了。
[root@devops01-web-53 scripts]# chkconfig --list nginx
nginx 0:off 1:off 2:on 3:on 4:on 5:on 6:off
1.3 重启机器，验证开机自启动是否生效
最后重启机器，验证开机是否自启动nginx服务。
[root@devops01-web-53 scripts]# reboot
机器已开机，验证如下：说明开机自启动配置成功。
[root@devops01-web-53 ~]# ps -ef|grep nginx
root 1202 1 0 01:12 ? 00:00:00 nginx: master process /application/nginx/sbin/nginx
www 1204 1202 0 01:12 ? 00:00:00 nginx: worker process
www 1205 1202 0 01:12 ? 00:00:00 nginx: worker process
www 1206 1202 0 01:12 ? 00:00:00 nginx: worker process
www 1207 1202 0 01:12 ? 00:00:00 nginx: worker process
root 1292 1276 0 01:15 pts/0 00:00:00 grep nginx
[root@devops01-web-53 ~]# lsof -i :80
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
nginx 1202 root 6u IPv4 12016 0t0 TCP *:http (LISTEN)
nginx 1204 www 6u IPv4 12016 0t0 TCP *:http (LISTEN)
nginx 1205 www 6u IPv4 12016 0t0 TCP *:http (LISTEN)
nginx 1206 www 6u IPv4 12016 0t0 TCP *:http (LISTEN)
nginx 1207 www 6u IPv4 12016 0t0 TCP *:http (LISTEN)
[root@devops01-web-53 ~]# netstat -lntup|grep nginx
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 1202/nginx
[root@devops01-web-53 ~]#