aplicacion.infra

upstream backend_webserver {
 server 10.0.2.150;
 server 10.0.2.151;
 server 10.0.2.152;
 server 10.0.2.153;
}

server {
 listen 80;
 server_name aplicacion.infra;
 location / {
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_pass http://backend_webserver;
 }
}