keepalived 配置，vip 配置

最新推荐文章于 2024-09-12 15:48:38 发布

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最新推荐文章于 2024-09-12 15:48:38 发布

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文章标签：运维

原文链接：http://www.cnblogs.com/hmj589119/p/10922698.html

本文主要介绍了keepalived和vip的配置。给出了A、B主机的keepalived配置代码，包括全局定义、vrrp脚本、vrrp实例等内容。说明了两台主机都存活时的IP分配情况，以及任一主机挂掉后的IP分配情况，最后提到通过DNS将两个IP指向相同域名轮询。

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keepalived 配置，vip 配置
A主机：
! Configuration File for keepalived
global_defs {
router_id mycat
}
vrrp_script chk_haproxy {
script "killall -0 haproxy" #cheaper than pidof
interval 2 #check every 2 seconds
}
vrrp_instance Mycat1 {
state BACKUP
interface eth0
track_interface {
eth0
}
virtual_router_id 150
priority 200
! nopreempt
advert_int 5
authentication {
auth_type PASS
auth_pass test_mycat1
}
virtual_ipaddress {
192.168.1.200/24 brd 192.168.1.255 dev eth0 label eth0:1
}
track_script {
check_haproxy weight=0 #+2 if process is present
}
}
vrrp_instance Mycat2 {
state BACKUP
interface eth0
track_interface {
eth0
}
virtual_router_id 151
priority 100
nopreempt
advert_int 5
authentication {
auth_type PASS
auth_pass test_mycat2
}
virtual_ipaddress {
192.168.1.201/24 brd 192.168.1.255 dev eth0 label eth0:2
}
track_script {
check_haproxy weight=0 #+2 if process is present
}
}

B主机：
! Configuration File for keepalived

global_defs {
router_id mycat
}

vrrp_script chk_haproxy {
script "killall -0 haproxy" #cheaper than pidof
interval 2 #check every 2 seconds
}

vrrp_instance Mycat1 {
state BACKUP
interface eth0
track_interface {
eth0
}
virtual_router_id 150
priority 100
nopreempt
advert_int 5
authentication {
auth_type PASS
auth_pass test_mycat1
}
virtual_ipaddress {
192.168.1.200/24 brd 192.168.1.255 dev eth0 label eth0:1
}
track_script {
check_haproxy weight=0 #+2 if process is present
}
}

vrrp_instance Mycat2 {
state BACKUP
interface eth0
track_interface {
eth0
}
virtual_router_id 151
priority 200
! nopreempt
advert_int 5
authentication {
auth_type PASS
auth_pass test_mycat2
}
virtual_ipaddress {
192.168.1.201/24 brd 192.168.1.255 dev eth0 label eth0:2
}
track_script {
check_haproxy weight=0 #+2 if process is present
}
}