Nginx load_balancer exampls

load_balancer.conf

http {
    upstream backend_servers {
        server 192.168.100.101;
        server 192.168.100.102;
        server 192.168.100.103;
    }

    server {
        listen 80;

        location / {
            proxy_pass http://backend_servers;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }
    }
}