user nginx;
worker_processes 1;

error_log   /var/log/nginx/error.log warn;
pid         /var/run/nginx.pid;

events {
    worker_connections 1024;
}

http {
    upstream backend {
        server app1:1111;
        server app2:2222;
        server app3:3333;
        server app4:4444;
        server app5:5555;
    }

    server {
        location / {
            proxy_pass http://backend;
        }
    }
}
