LVS-DR脚本管理配置

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Bob（讨论 | 贡献）2019年11月25日 (一) 15:41的版本 （创建页面，内容为“500px|center|border Director配置  操作IP 192.168.0.108,配置VIP(创建eth0:0并配置) cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc…”）
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Lvs-5.png

Director配置 

操作IP 192.168.0.108,配置VIP(创建eth0:0并配置) 

cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth0:0
vi /etc/sysconfig/network-scripts/ifcfg-eth0:0
...
IPADDR=192.168.0.108
NETMASK=255.255.255.0
systemctl restart network

安装ipvsadm并配置 

yum install -y ipvsadm

ipvsadm -A -t 192.168.0.108 -s rr
ipvsadm -a -t 192.168.0.108:80 -r 192.168.0.133 -g
ipvsadm -a -t 192.168.0.108:80 -r 192.168.0.134 -g

[root@localhost ~]# ipvsadm -ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
  -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
TCP  192.168.0.108:80 rr
  -> 192.168.0.133:80             Route   1      0          0
  -> 192.168.0.134:80             Route   1      0          0
#防火墙设置

firewall-cmd --permanent --add-port=80/tcp
forewall-cmd --reload

两台apache配置 

yum install -y httpd
systemctl enable httpd
systemctl start httpd
cp /etc/sysconfig/network-scripts/ifcfg-lo /etc/sysconfig/network-scripts/ifcfg-lo:1

vi /etc/sysconfig/network-scripts/ifcfg-lo:1
DEVICE=lo:1
IPADDR=192.168.0.108
NETMASK=255.255.255.255
# If you're having problems with gated making 127.0.0.0/8 a martian,
# you can change this to something else (255.255.255.255, for example)
ONBOOT=yes
NAME=loopback

systemctl restart network

firewall-cmd --permanent --add-port=80/tcp

#关闭VIP ARP响应

echo "1" >/proc/sys/net/ipv4/conf/lo/arp_ignore
echo "2" >/proc/sys/net/ipv4/conf/lo/arp_announce
echo "1" >/proc/sys/net/ipv4/conf/all/arp_ignore
echo "2" >/proc/sys/net/ipv4/conf/all/arp_announce

服务器添加首页 

echo abctest192.168.0.134 >/var/www/html/index.html
echo edf is test192.168.0.133 >/var/www/html/index.html

测试 

[root@lvs ~]# curl http://192.168.0.108
edf is test192.168.0.133
[root@lvs ~]# curl http://192.168.0.108
abctest192.168.0.134
[root@lvs ~]# curl http://192.168.0.108
edf is test192.168.0.133
[root@lvs ~]# curl http://192.168.0.108
edf is test192.168.0.133

脚本实现

lvs管理器上的脚本 

#!/bin/bash
#lvs管理器配置，lvs之DR模式
# vim /usr/local/sbin/lvs_nat.sh
echo 1 > /proc/sys/net/ipv4/ip_forward
ipv=/sbin/ipvsadm
vip=192.168.0.108
rs1=192.168.0.133
rs2=192.168.0.134
#添加vip网卡之eth0:0
ifconfig eth0:0 down
ifconfig eth0:0 $vip broadcast $vip netmask 255.255.255.255 up
route add -host $vip dev eth0:0
ipvsadm -C
ipvsadm -A -t 192.168.0.108 -s rr
ipvsadm -a -t 192.168.0.108:80 -r 192.168.0.133 -g
ipvsadm -a -t 192.168.0.108:80 -r 192.168.0.134 -g
#关闭VIP ARP响应
echo "1" >/proc/sys/net/ipv4/conf/lo/arp_ignore
echo "2" >/proc/sys/net/ipv4/conf/lo/arp_announce
echo "1" >/proc/sys/net/ipv4/conf/all/arp_ignore
echo "2" >/proc/sys/net/ipv4/conf/all/arp_announce

两台apache上的配置脚本 

#!/bin/bash
# vim /usr/local/sbin/lvs_dr_rs.sh
vip=192.168.0.108
#添加lo:1
ifconfig lo:1 $vip broadcast $vip netmask 255.255.255.255 up
route add -host $vip lo:1
#关闭VIP ARP响应
echo "1" >/proc/sys/net/ipv4/conf/lo/arp_ignore
echo "2" >/proc/sys/net/ipv4/conf/lo/arp_announce
echo "1" >/proc/sys/net/ipv4/conf/all/arp_ignore
echo "2" >/proc/sys/net/ipv4/conf/all/arp_announce
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