nginx安装及高可用

nginx的安装：

server1:

tar zxf nginx-1.14.0.tar.gz

cd nginx-1.14.0/src/core/

vim nginx.h

cd /root/nginx-1.14.0/auto/cc

vim gcc         ##将图中光标所示注释掉

yum install pcre-devel

yum install openssl-devel

./configure --prefix=/usr/local/nginx --with-http_ssl_module --with-http_stub_status_module --with-threads --with-file-aio

##此步骤需要gcc编译器，若没有需要下载

make

make install

cd /usr/local/nginx/

cd sbin/

ln -s /usr/local/nginx/sbin/nginx  /sbin/

cd /usr/local/nginx/html    ##此目录为nginx的默认发布目录

vim test.html               ##nginx有自己的默认发布页面，所以需要自己创建一个新的页面

测试

网页测试

www.westos.org

www.westos.org

nginx -t    ##检查语法

nginx             ##开启服务

cd /usr/local/nginx/html/

lscpu

vim /etc/security/limits.conf

ngnin -s reload   ##重载nginx

nginx -t

useradd -M -d /usr/local/nginx/ nginx     ##创建一个nginx用户

id nginx                ##查看用户是否创建成功

vim /nginx.conf   ##编辑nginx主配置文件

nginx -s reload 编辑完成后重载

测试

curl www.westos.org

当weight =2时：

添加ip_hash；时

高可用

server1:

scp -r /usr/local/nginx/   server4:/usr/local/  ##将一中配置好的文件发送到四中

yum install -y luci ricci

chkconfig luci on  ##设置开机自启动

/etc/init.d/luci start   ##开启服务

chkconfig ricci on  ###设置开机自启动

passwd ricci         ##給ricci配置密码必须配置

/etc/init.d/ricci start

netstat -antlp | grep ricci   ###查看ricci的端口号:11111

server4:

ln -s /usr/local/nginx/sbin/nginx   /sbin/

useradd -M -d /usr/local/nginx/ nginx      ##创建一个nginx用户

nginx   ##开启服务

netstat -antlp | grep nginx         ##可以查看nginx服务端口

yum install -y ricci

chkconfig ricci on

passwd ricci

/etc/init.d/ricci start

netstat -antlp | grep ricci    #ricci的开启端口为11111

在浏览器访问：（需要先在物理机上做好解析）

页面编辑

Failover Domains：用来做节点隔离，业务切换

添加共享服务VIIP

添加nginx脚本:

由于ningx自己并没有启动脚本，所以需要自己制作

Vim /etc/init.d/nginx

内容如下：

#!/bin/bash

# nginx Startup script for the Nginx HTTP Server

# it is v.0.0.2 version.

# chkconfig: - 85 15

# description: Nginx is a high-performance web and proxy server.

#              It has a lot of features, but it's not for everyone.

# processname: nginx

# pidfile: /var/run/nginx.pid

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

nginxd=/usr/local/nginx/sbin/nginx

nginx_config=/usr/local/nginx/conf/nginx.conf

nginx_pid=/var/run/nginx.pid

RETVAL=0

prog="nginx"

# Source function library.

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

# Source networking configuration.

. /etc/sysconfig/network

# Check that networking is up.

[ ${NETWORKING} = "no" ] && exit 0

[ -x $nginxd ] || exit 0

# Start nginx daemons functions.

start() {

if [ -e $nginx_pid ];then

echo "nginx already running...."

exit 1

fi

echo -n $"Starting $prog: "

daemon $nginxd -c ${nginx_config}

RETVAL=$?

echo

[ $RETVAL = 0 ] && touch /var/lock/subsys/nginx

return $RETVAL

}

# Stop nginx daemons functions.

stop() {

echo -n $"Stopping $prog: "

killproc $nginxd

RETVAL=$?

echo

[ $RETVAL = 0 ] && rm -f /var/lock/subsys/nginx /var/run/nginx.pid

}

# reload nginx service functions.

reload() {

echo -n $"Reloading $prog: "

#kill -HUP `cat ${nginx_pid}`

killproc $nginxd -HUP

RETVAL=$?

echo

}

# See how we were called.

case "$1" in

start)

start

;;

stop)

stop

;;

reload)

reload

;;

restart)

stop

start

;;

status)

status $prog

RETVAL=$?

;;

*)

echo $"Usage: $prog {start|stop|restart|reload|status|help}"

exit 1

esac

exit $RETVAL

chmod a+x /etc/init.d/nginx   ##给予权限

并在/etc/rc.d/rc.local中将其写入，实现开机自启

创建资源组：这里添加顺序应与服务启动顺序一致

测试：

通过clusta课题看到服务已经启动，此时停掉一个server中的服务，另一个会自动接管，

但是server1的优先级要高于server4，所以当server1坏掉重启后会将原本在server4中的服务再次接管