Example NGINX configuration to dynamically set the local IP address during socket creation

nginx.conf

# Example of proxy_bind using variables using split_clients and map

events { worker_connections 2014; }

http {
        default_type text/plain;

        error_log /var/log/nginx/debug_error.log debug;

        server {
                listen 8098;
                status_zone frontend;
                return 200 "Results:
Server Address:\t $server_addr:$server_port
Network Remote Address:\t $remote_addr
Current time:\t\t $time_local
Request URI:\t\t $request_uri\n\n";

        }

        upstream backend {
                zone backend 64k;
                server 172.16.239.200:8098;
        }

        server {
                listen 80;
                location / {
                        proxy_pass http://backend;
                        proxy_bind $split_ip;
                        proxy_set_header X-Forwarded-For $remote_addr;
                }
        }

        split_clients "$request_uri$remote_port" $split_ip {
                10%    172.16.239.200;
                10%    172.16.239.201;
                10%    172.16.239.202;
                10%    172.16.239.203;
                10%    172.16.239.204;
                10%    172.16.239.205;
                10%    172.16.239.206;
                10%    172.16.239.207;
                10%    172.16.239.208;
                *      172.16.239.209;
        }
}