安装环境为ROCKY9
yum –y install keepalived
高可用的配置文件为
/etc/keepalived/keepalived.conf
需要配置以下内容:
! Configuration File for keepalived
global_defs {
router_id nginx1 #matser和backup这里不同
}
vrrp_script check_nginx { #将所有nginx设为高可用,当这台nginx挂掉的时候，停止keepalived服务,vip漂移到别的backup上
script “/etc/keepalived/nginx.sh” #脚本所在位置，记得加执行权限
interval 5
fall 2
rise 2 #自己执行2遍脚本，判断服务挂没挂
weigth –60
}
vrrp_instance VI_1 {
state MASTER 这台keepalived为master
interface ens33
virtual_router_id 80 #同一组keepalived这里要一样
priority 100 #优先级为100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.107.200/24 #添加的虚拟ip
}
track_script { #执行上面添加的脚本
check_nginx
}
}
check_nginx脚本内容:
复制代码
#!/bin/bash
curl localhost &>/dev/null
if [ $? –ne 0 ];then
systemctl stop keepalived
fi