centos7系统keepalvie高可用（抢占式）
16lz
2021-04-08
一、基础环境
master: 192.168.203.128slave: 192.168.203.129VIP 192.168.203.130二、安装keepalive
1、 创建依赖环境
yum -y install openssl-devel gcc gcc-c++mkdir /etc/keepalivedwget https://www.keepalived.org/software/keepalived-2.0.18.tar.gz2、安装keepalived
tar -zxvf keepalived-2.0.18.tar.gzmv keepalived-2.0.18 /usr/local/keepalivedcd /usr/local/keepalived./configure && make && make install3、创建启动文件
cp -a /usr/local/etc/keepalived /etc/init.d/cp -a /usr/local/etc/sysconfig/keepalived /etc/sysconfig/cp -a /usr/local/sbin/keepalived /usr/sbin/4、创建配置文件
1 master
vim /etc/keepalived/keepalived.conf
global_defs { router_id internal_control}vrrp_instance VI_1 { state MASTER interface ens33 virtual_router_id 3 priority 200 advert_int 1 authentication { auth_type PASS auth_pass 123456 } virtual_ipaddress { 192.168.203.130/24 }}2 slave
vim /etc/keepalived/keepalived.conf
global_defs { router_id internal_control}vrrp_instance VI_1 { state BACKUP interface ens33 virtual_router_id 3 priority 90 advert_int 1 authentication { auth_type PASS auth_pass 123456 } virtual_ipaddress { 192.168.203.130/24 }}5、启动keepalived(2台机器)
systemctl start keepalivedsystemctl enable keepalived查看maser上已经有vip地址了
三、测试
1 master关闭keepalived
systemctl stop keepalived 2 salve查看vip地址
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