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Keepalived系列一：Keepalived.conf 详解
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接上一篇博客：
http://www.cnblogs.com/xiaoit/p/4499703.html
1：按照上篇博客安装后的配置文件在
/usr/local/etc/keepalived/keepalived.conf
默认内容如下：
! Configuration File for keepalived #全局定义块，以下模版不能省略
global_defs {
#如有故障，发邮件的地址。
notification_email {
acassen@firewall.loc
failover@firewall.loc
sysadmin@firewall.loc
}
notification_email_from Alexandre.Cassen@firewall.loc
smtp_server 192.168.200.1 #邮件服务链接超时的最长时间
smtp_connect_timeout 30
router_id LVS_DEVEL
} #前面定义的后备的负载均衡服务器名称
vrrp_instance VI_1 {
#只有MASTER和BACKUP 两种状态，都必须大写。
state MASTER
#进行通信的端口
interface eth0 #同一个vrrp实例的唯一标识。即同一个vrrp_stance,MASTER和BACKUP的virtual_router_id是一致的。在整个vrrp内也唯一。
virtual_router_id 51 #权重，数值越大，权重越大。MASTER大于SLAVE
priority 100 #MASTER和SLAVE负载均衡器之间同步检查的时间间隔。单位是：秒
advert_int 1 #MASTER和SLAVE的认证方式
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.200.16
192.168.200.17
192.168.200.18
}
} #virtual_ipaddress，需要添加端口
virtual_server 192.168.200.100 443 {
#服务健康检查周期，6秒
delay_loop 6 #负载均衡调度算法rr|wrr|lc|wlc|sh|dh|lblc
lb_algo rr #负载均衡转发规则NAT|DR|TUN
lb_kind NAT
nat_mask 255.255.255.0 #回话保持时间，如果是动态服务，建议开启。默认50秒
persistence_timeout 50
protocol TCP #真是IP
real_server 192.168.201.100 443 { #权重，数值越大，权重越高。分发的可能越大
weight 1
SSL_GET {
url {
path /
digest ff20ad2481f97b1754ef3e12ecd3a9cc
}
url {
path /mrtg/
digest 9b3a0c85a887a256d6939da88aabd8cd
}
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
} virtual_server 10.10.10.2 1358 {
delay_loop 6
lb_algo rr
lb_kind NAT
persistence_timeout 50
protocol TCP sorry_server 192.168.200.200 1358 real_server 192.168.200.2 1358 {
weight 1
HTTP_GET {
url {
path /testurl/test.jsp
digest 640205b7b0fc66c1ea91c463fac6334d
}
url {
path /testurl2/test.jsp
digest 640205b7b0fc66c1ea91c463fac6334d
}
url {
path /testurl3/test.jsp
digest 640205b7b0fc66c1ea91c463fac6334d
}
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
} real_server 192.168.200.3 1358 {
weight 1
HTTP_GET {
url {
path /testurl/test.jsp
digest 640205b7b0fc66c1ea91c463fac6334c
}
url {
path /testurl2/test.jsp
digest 640205b7b0fc66c1ea91c463fac6334c
}
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
} virtual_server 10.10.10.3 1358 {
delay_loop 3
lb_algo rr
lb_kind NAT
nat_mask 255.255.255.0
persistence_timeout 50
protocol TCP real_server 192.168.200.4 1358 {
weight 1
HTTP_GET {
url {
path /testurl/test.jsp
digest 640205b7b0fc66c1ea91c463fac6334d
}
url {
path /testurl2/test.jsp
digest 640205b7b0fc66c1ea91c463fac6334d
}
url {
path /testurl3/test.jsp
digest 640205b7b0fc66c1ea91c463fac6334d
}
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
} real_server 192.168.200.5 1358 {
weight 1
HTTP_GET {
url {
path /testurl/test.jsp
digest 640205b7b0fc66c1ea91c463fac6334d
}
url {
path /testurl2/test.jsp
digest 640205b7b0fc66c1ea91c463fac6334d
}
url {
path /testurl3/test.jsp
digest 640205b7b0fc66c1ea91c463fac6334d
}
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
}
参考：
http://www.keepalived.org/documentation.html
