Keepalived&Haproxy的简单安装配置

crespo09

　　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 {
chenghui@outlook.com
}
notification_email_from admin@server.com
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 {
chenghui@outlook.com
}
notification_email_from admin@host.com
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