标签：pad inux efs ica yum 配置文件 vip router outer
Keepalived是Linux下面实现VRRP备份路由的高可靠性运行软件,能够真正做到主服务器和备份服务器故障时IP瞬间无缝交接
部署过程
两台机器安装nginx和keepalived
192.168.10.130 node 192.168.10.140 node 192.168.10.120 VIP 192.168.10.121 VIP
两台机器都安装
yum install -y nginx keepalived
健康检查脚本
cat /server/scripts/check_nginx.sh
#!/bin/bash
# check nginx service
run=`ps -C nginx --no-header | wc -l`
if [ $run -eq 0 ]
then
/etc/rc.d/init.d/nginx start
sleep 3
fi
node上的keepalived配置
cat /etc/keepalived/keepalived.conf
! Configuration File for keepalived
global_defs {
vrrp_garp_interval 0
vrrp_gna_interval 0
}
vrrp_script chk_nginx{
script "/server/scripts/check_nginx.sh"
interval 2
weight 2
}
#VIP1
vrrp_instance VI_1 {
state MASTER
interface eth0
virtual_router_id 50
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.10.20
}
}
track_script {
check_nginx
}
#VIP2，新增配置，新增一个实例VI_2
vrrp_instance VI_2 {
state BAKCUP
interface eth0
virtual_router_id 51
priority 90
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.10.21
}
}
另外一台node的keepalived的配置文件
! Configuration File for keepalived
global_defs {
vrrp_garp_interval 0
vrrp_gna_interval 0
}
vrrp_script chk_nginx{
script "/server/scripts/check_nginx.sh"
interval 2
weight 2
}
#VIP1
vrrp_instance VI_1 {
state BACKUP
interface eth0
virtual_router_id 50
priority 90
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.10.20
}
}
track_script {
check_nginx
}
#VIP2，新增的实例,VI_2
vrrp_instance VI_2 {
state MASTER
interface eth0
virtual_router_id 51
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.10.21
}
}
配置完成启动服务即可
systemctl enable keepalived && systemctl start keepalived systemctl enable nginx && systemctl start nginx
至此部署完成
CentOS 7.8 部署nginx+keepalived双主配置
标签：pad inux efs ica yum 配置文件 vip router outer
原文地址：https://www.cnblogs.com/huanglingfa/p/13823937.html
