Keepalived&Haproxy的简单安装配置

运行环境：
Keepalived
master：192.168.99.130
backup：192.168.99.131
vip：192.168.99.200

Apache
192.168.99.130:8080
192.168.99.131:8080

一、Keepalived安装与配置

创建软链接
ln -s /usr/src/kernels/2.6.18-308.13.1.el5-i686 /usr/src/linux

如果没有kernel内核开发包
yum -y install kernel-devel

wget http://www.keepalived.org/software/keepalived-1.2.2.tar.gz
tar -zxvf keepalived-1.2.2.tar.gz
./configure --prefix=/data/apps/keepalived1.2.2
make && make install

编辑Keepalived配置文件
mkdir /etc/keepalived
vi /etc/keepalived/keepalived.conf

//========================MASTER=======================

! Configuration File for keepalived

global_defs {
   notification_email {
     [email protected]
   }
   notification_email_from [email protected]
   smtp_server 127.0.0.1
   smtp_connect_timeout 30
   router_id LVS_DEVEL
}

vrrp_instance VI_1 {
    state MASTER
    interface eth0
    virtual_router_id 50
    nopreempt
    priority 100
    advert_int 1
    virtual_ipaddress {
        192.168.99.200
    }
}

//========================BACKUP=======================

! Configuration File for keepalived

global_defs {
   notification_email {
     [email protected]
   }
   notification_email_from [email protected]
   smtp_server 127.0.0.1
   smtp_connect_timeout 30
   router_id LVS_DEVEL
}

vrrp_instance VI_1 {
    state MASTER
    interface eth0
    virtual_router_id 50
    nopreempt
    priority 50
    advert_int 1
    virtual_ipaddress {
        192.168.99.200
    }
}

 

加入系统服务
cp /data/apps/keepalived1.2.2/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/
cp /data/apps/keepalived1.2.2/etc/sysconfig/keepalived /etc/sysconfig/
cp /data/apps/keepalived1.2.2/sbin/keepalived /usr/sbin/
chkconfig --add keepalived
chkconfig keepalived on
service keepalived start

此时在MASTER上执行ip a可以看到

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether 00:0c:29:27:c6:4d brd ff:ff:ff:ff:ff:ff
    inet 192.168.99.130/24 brd 192.168.99.255 scope global eth0
    inet 192.168.99.200/32 scope global eth0
    inet6 fe80::20c:29ff:fe27:c64d/64 scope link 
       valid_lft forever preferred_lft forever
3: sit0: <NOARP> mtu 1480 qdisc noop 
    link/sit 0.0.0.0 brd 0.0.0.0

 

附：如果通过killall停止keepalived的话，可能会出现vip依然绑定的情况，删除vip的方法：
ip addr del 192.168.99.200/24 dev eth0

二、Haproxy的安装与配置

wget http://haproxy.1wt.eu/download/1.4/src/haproxy-1.4.13.tar.gz
tar -zxvf haproxy-1.4.13.tar.gz
cd haproxy-1.4.13
make TARGET=linux26 PREFIX=/data/apps/haproxy
make install PREFIX=/data/apps/haproxy

编辑Haproxy配置文件
vim /data/apps/haproxy/haproxy.conf

global
maxconn 5120
chroot /data/apps/haproxy
uid 502
gid 501
daemon
quiet
nbproc 2

defaults
log     global
mode    http
option httplog
option dontlognull
retries 3
option redispatch
maxconn 2000
contimeout      5000
clitimeout      50000
srvtimeout      50000

listen appli1 0.0.0.0:80
mode http
option httplog
option dontlognull
log 127.0.0.1 local3
cookie SERVERID rewrite
balance roundrobin
option httpchk
stats uri /stats
stats auth admin:admin
server app1_3 192.168.99.130:8080 cookie app1inst3 check inter 2000 rise 2 fall 5
server app1_4 192.168.99.131:8080 cookie app1inst4 check inter 2000 rise 2 fall 5

 启动Haproxy
/data/apps/haproxy/sbin/haproxy -f /data/apps/haproxy/haproxy.conf

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