nginx.conf

worker_processes auto;

events {
    worker_connections 20000;
}

http {
    access_log off;
    sendfile on;
    
    upstream api {
        server api-1:8080;
        server api-2:8080;
    }

    map $uri $valid_url {
        default 0;
        ~^/clientes/[1-5]/(transacoes|extrato) 1;
        # /clientes/1/transacoes 1;
        # /clientes/2/transacoes 1;
        # /clientes/3/transacoes 1;
        # /clientes/4/transacoes 1;
        # /clientes/5/transacoes 1;
        # /clientes/1/extrato 1;
        # /clientes/2/extrato 1;
        # /clientes/3/extrato 1;
        # /clientes/4/extrato 1;
        # /clientes/5/extrato 1;
    }

    server {
        listen 8000;
        location / {
          if ($valid_url) {
              proxy_pass http://api;
              break;
          }
            return 404;
        }
    }
}