keepalived+nginx实现高可用

测试环境：

系统版本：CentOS Linux release 8.2.2004 (Core)

VIP	IP	主机名	NGINX端口	主从
10.133.1.180	10.133.1.130	Node-1	80	主
	10.133.1.140	Node-2	80	从
10.133.1.190	10.133.1.140	Node-2	80	主
	10.133.1.130	Node-1	80	从

 

 

 

 

 

 

 

Node-1的keepalive配置：

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vrrp_instance wp-1 {
state MASTER
interface eth0
virtual_router_id 10
priority 110
advert_int 1
authentication {
auth_type PASS
auth_pass cisco
}
virtual_ipaddress {
10.133.1.180
}
}
vrrp_instance wp-2 {
state BACKUP
interface eth0
virtual_router_id 20
priority 90
advert_int 1
authentication {
auth_type PASS
auth_pass cisco
}
virtual_ipaddress {
10.133.1.190
}
}

Node-2的keepalive配置：

==================================================

vrrp_instance wp-1 {
state BACKUP
interface eth0
virtual_router_id 10
priority 90
advert_int 1
authentication {
auth_type PASS
auth_pass cisco
}
virtual_ipaddress {
10.133.1.180
}
}
vrrp_instance wp-2 {
state MASTER
interface eth0
virtual_router_id 20
priority 110
advert_int 1
authentication {
auth_type PASS
auth_pass cisco
}
virtual_ipaddress {
10.133.1.190
}
}

Node-1的NGINX配置：

==================================================

upstream wp {
ip_hash;
server 10.133.1.130;
server 10.133.1.140;
}

location / {
proxy_pass http://wp;

Node-2的NGINX配置：

==================================================

upstream wp {
ip_hash;
server 10.133.1.140;
server 10.133.1.130;
}

location / {
proxy_pass http://wp;

在Node-1上查看VIP地址

==================================================

在Node-2上查看VIP地址

==================================================

在浏览器上测试

==================================================

http://10.133.1.180

http://10.133.1.190