#/bin/bash

vip="192.168.132.250"

dr1="192.168.132.120"

dr2="192.168.132.121"

rs1="192.168.132.131"

rs2="192.168.132.134"

#dr1配置keepalived

yum install -y keepalived

cat > /etc/keepalived/keepalived.conf <<EOF

global_defs {

}

vrrp_instance VI_1 {

    state MASTER

    interface ens33

    virtual_router_id

    priority

    advert_int

    authentication {

        auth_type PASS

        auth_pass

    }

    virtual_ipaddress {

        $vip/

    }

}

virtual_server $vip  {

    delay_loop

    lb_algo rr

    lb_kind DR

    protocol TCP

    real_server $rs1  {

        weight

        TCP_CHECK {

            connect_timeout

            nb_get_retry

            delay_before_retry

        }

    }

    real_server $rs2  {

        weight

        TCP_CHECK {

            connect_timeout

            nb_get_retry

            delay_before_retry

        }

    }

}

EOF

systemctl restart keepalived

yum install -y ipvsadm sshpass

sed -i 35c"StrictHostKeyChecking no" /etc/ssh/ssh_config

setenforce

systemctl stop firewalld

#dr1复制keepalived文件到dr2

sshpass -p root ssh $dr2 "yum install -y keepalived"

sshpass -p root scp /etc/keepalived/keepalived.conf $dr2:/etc/keepalived/keepalived.conf

#dr2配置keepalived

dr2_cmd="

setenforce ;

systemctl stop firewalld;

sed -i 's/MASTER/BACKUP/g' /etc/keepalived/keepalived.conf;

sed -i 's/100/90/g' /etc/keepalived/keepalived.conf;

systemctl restart keepalived;

"

sshpass -p root ssh $dr2 "$dr2_cmd"

#rs1,rs2配置lvs

cmd="

setenforce ;

firewall-cmd --add-port=/tcp;

ifconfig lo: $vip broadcast $vip netmask 255.255.255.255 up;

route add -host $vip dev lo:;

echo "" > /proc/sys/net/ipv4/conf/lo/arp_ignore;

echo "" > /proc/sys/net/ipv4/conf/lo/arp_announce;

echo "" > /proc/sys/net/ipv4/conf/all/arp_ignore;

echo "" > /proc/sys/net/ipv4/conf/all/arp_announce;

service httpd restart

"

sshpass -p root ssh $rs1 "$cmd"

sshpass -p root ssh $rs2 "$cmd"