Keepalived+LVS/DR实验笔记
http://blog.运维网.com/attachment/201312/112231812.jpg操作系统：RHEL5.8
分别在DirectorMaster和DirectorBackup上部署浮动资源(VIP IPVS策略)
测试2个Director在DR模式下是否都正常工作。测试完后都撤掉浮动资源
在DirectorMaster上安装配置Keepalived
#tar -zvxf keepalived-1.2.1.tar.gz
#cd keepalived-1.2.1
# ./configure --prefix=/ --mandir=/usr/local/share/man --with-kernel-dir=/usr/src/kernels/2.6.18-308.el5-i686/
--> 如果没有/usr/src/kernels/2.6.18-3.8.el5-i686，则需要安装对应当前kernel版本的kernel-devel软件包
ex:
#uname -r
2.6.18-308.el5xen
#yum install kernel-xen-devel
小贴士
--> 若出现以下错误信息
!!! OpenSSL is not properly installed on your system. !!!
!!! Can not include OpenSSL headers files.
--> 解决方案
#yum -y install openssl-devel
Keepalived configuration
------------------------
Keepalived version : 1.2.1
Compiler : gcc
Compiler flags : -g -O2 -DETHERTYPE_IPV6=0x86dd
Extra Lib : -lpopt -lssl -lcrypto
Use IPVS Framework : Yes
IPVS sync daemon support: Yes
Use VRRP Framework : Yes
Use Debug flags : No
#make && make install
#cd /etc/keepalived/
#vim keepalived.conf
! Configuration File for keepalived
global_defs {
notification_email {
root@localhost
}
notification_email_from keepalived@localhost
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id Director1
}
vrrp_instance VI_1 {
state MASTER
interface eth0
virtual_route_id 51
priority 150
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.122.200/24 dev eth0
}
}
virtual_server 192.168.122.200 80 {
delay_loop 3
lb_algo rr -->LVS调度算法
lb_kind DR -->LVS集群模式
nat_mask 255.255.255.0
protocol TCP
real_server 192.168.122.30 80 {
weight 1
TCP_CHECK {
connect_timeout 3
}
}
real_server 192.168.122.40 80 {
weight 1
TCP_CHECK {
connect_timeout 3
}
}
}
#scp keepalived.conf 192.168.122.20:/etc/keepalived/
--> 拷贝后，修改配置文件
state BACKUP
priority 100 -->master至少要高于backup50
在两台Director上启动服务
#/etc/init.d/keepalived start
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