Nginx-Based load balancing

1. Scene

Nginx3 connecting the WAN to other servers inside the network

Nginx 1---------------------

/      \      \                              \

Server 1 server 2 Server3 nginx3 <--

\       /      /                              /

Nginx 2-----------------------

2. Ideas

NGINX3 for ingress reverse proxy, load balancer to NGINX1, 2

Nginx 1, 2 reverse proxy and load balancer Servier1, 2, 3

3. Configuration files

NGINX3 configuration:

Upstream lb.tin.com {
Server 10.221.148.167:80; #nginx1
Server 10.251.216.232:80; #nginx2
}

Upstream pro1.tin.com {

Server 10.221.148.167:80;
}

Upstream pro2.tin.com {
Server 10.251.216.232:80;
}

server {
Listen 80;
server_name loalhost;
Location/pro1 {
Proxy_pass http://pro1.tin.com;
Proxy_set_header Host $host;
Proxy_set_header X-real-ip $remote _addr;
Proxy_set_header x-forwarded-for $proxy _add_x_forwarded_for;
}
Location/pro2 {
Proxy_pass http://pro2.tin.com;
Proxy_set_header Host $host;
Proxy_set_header X-real-ip $remote _addr;
Proxy_set_header x-forwarded-for $proxy _add_x_forwarded_for;
}

}

NGINX1, 2 configuration:

NGINX1 Example:

Upstream pro1.tin.com {
Server 10.221.148.160:8080; #server1
Server 10.251.216.230:8080; #server2

Server 10.251.216.231:8080; #server3

}

Upstream server1.tin.com {

Server 10.221.148.160:8080;
}

Upstream server2.tin.com {
Server 10.251.216.230:8080;
}

Upstream server3.tin.com {
Server 10.251.216.231:8080;
}

server {
Listen 8080;
server_name loalhost;
Location/server1 {
Proxy_pass http://server1.tin.com;
Proxy_set_header Host $host;
Proxy_set_header X-real-ip $remote _addr;
Proxy_set_header x-forwarded-for $proxy _add_x_forwarded_for;
}
Location/server2 {
Proxy_pass http://server2.tin.com;
Proxy_set_header Host $host;
Proxy_set_header X-real-ip $remote _addr;
Proxy_set_header x-forwarded-for $proxy _add_x_forwarded_for;
}

Location/server3 {
Proxy_pass http://server3.tin.com;
Proxy_set_header Host $host;
Proxy_set_header X-real-ip $remote _addr;
Proxy_set_header x-forwarded-for $proxy _add_x_forwarded_for;
}

}

Nginx-based load balancing