keepalived+nginx使用

1. 准备2台虚拟机，ip分别是192.168.37.133,192.168.37.134,分别安装好nginx、keepalived ，可以用docker安装nginx ：docker pull nginx:1.10，

安装命令 yum install keepalived

2 编辑 /etc/keepalived/keepalived.conf ，192.168.37.133机器作为MASTER

! Configuration File for keepalived
global_defs {

}


vrrp_instance VI_1 {
    state MASTER
    interface ens33
    virtual_router_id 51
    priority 100
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.37.140
    }
}

192.168.37.14 机器作为BACKUP

! Configuration File for keepalived
global_defs {

}


vrrp_instance VI_1 {
    state BACKUP
    interface ens33
    virtual_router_id 51
    priority 20
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.37.140
    }
}

3 .启动nginx 和keepalived

启动nginx：

docker run -p 80:80 --name nginx -v /mydata/nginx/conf.d:/etc/nginx/conf.d -v /mydata/nginx/nginx.conf:/etc/nginx/nginx.conf -v /mydata/nginx/html:/usr/share/nginx/html -v /mydata/nginx/log:/var/log/nginx -d nginx:1.10

启动keepalived：

systemctl start keepalived

4 访问 http://192.168.37.140

当把192.168.37.134的机器关机后，再次访问，访问了备份机器