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haproxy+keepalived(主主模式)實(shí)現(xiàn)高可用環(huán)境的簡(jiǎn)單配置

發(fā)布時(shí)間：2020-08-07 20:05:16 來(lái)源：網(wǎng)絡(luò) 閱讀：522 作者：Mr_sheng 欄目：建站服務(wù)器

參考：haproxy+keepalived(主從模式)實(shí)現(xiàn)高可用環(huán)境的簡(jiǎn)單配置? ? ?https://blog.51cto.com/sf1314/2357735?

主主模式就是需要兩個(gè)VIP,即兩個(gè)haproxy節(jié)點(diǎn)都同時(shí)在提供服務(wù),

當(dāng)有一個(gè)haproxy掛掉后,它的vip資源就會(huì)漂到另一個(gè)haproxy節(jié)點(diǎn)上(此時(shí)它將有兩個(gè)vip都在提供服務(wù)),故障轉(zhuǎn)移無(wú)感知.


[root@Haproxy_Keepalived_Master ~]# vim /etc/keepalived/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 HAproxy237
}
?
vrrp_script chk_haproxy {???????????????????????????????????#HAproxy 服務(wù)監(jiān)控腳本????????????????????
??script?"/etc/keepalived/check_haproxy.sh"
??interval 2
??weight 2
}
?
vrrp_instance VI_1 {
??state MASTER
??interface eth0
??virtual_router_id 51
??priority 100
??advert_int 1
??authentication {
????auth_type PASS
????auth_pass 1111
}
??track_script {
????chk_haproxy
}
virtual_ipaddress {
????182.148.15.239
}
notify_master?"/etc/keepalived/clean_arp.sh 182.148.15.239"
}
vrrp_instance VI_2 {
??state BACKUP
??interface eth0
??virtual_router_id 52
??priority 99
??advert_int 1
??authentication {
????auth_type PASS
????auth_pass 1111
}
virtual_ipaddress {
??182.148.15.235
}
notify_master?"/etc/keepalived/clean_arp.sh 182.148.15.235"
}
??
3）Haproxy_Keepalived_Backup服務(wù)器上的Keepalived配置如下：
[root@Haproxy_Keepalived_Backup ~]# /etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf-bak
[root@Haproxy_Keepalived_Backup ~]# vim /etc/keepalived/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 HAproxy236
}
?
vrrp_script chk_haproxy {????????????????????????????
??script?"/etc/keepalived/check_haproxy.sh"
??interval 2
??weight 2
}
?
vrrp_instance VI_1 {
??state BACKUP
??interface eth0
??virtual_router_id 51
??priority 99
??advert_int 1
??authentication {
????auth_type PASS
????auth_pass 1111
}
??track_script {
????chk_haproxy
}
virtual_ipaddress {
????182.148.15.239
}
notify_master?"/etc/keepalived/clean_arp.sh 182.148.15.239"
}
vrrp_instance VI_2 {
??state MASTER
??interface eth0
??virtual_router_id 52
??priority 100
??advert_int 1
??authentication {
????auth_type PASS
????auth_pass 1111
}
virtual_ipaddress {
??182.148.15.235
}
notify_master?"/etc/keepalived/clean_arp.sh 182.148.15.235"
}




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