Socket activation with inetd/xinetd

Inetd and Xinetd are two daemons used to start network processes on demand.You can use this in uWSGI too.

Inetd

  1. 127.0.0.1:3031 stream tcp wait root /usr/bin/uwsgi uwsgi -M -p 4 --wsgi-file /root/uwsgi/welcome.py --log-syslog=uwsgi

With this config you will run uWSGI on port 3031 as soon as the firstconnection is made. Note: the first argument (the one soon after/usr/bin/uwsgi) is mapped to argv[0]. Do not forget this – always set itto uwsgi if you want to be sure.

Xinetd

  1. service uwsgi
  2.     {
  3.             disable         = no
  4.             id              = uwsgi-000
  5.             type            = UNLISTED
  6.             socket_type     = stream
  7.             server          = /root/uwsgi/uwsgi
  8.             server_args     = --chdir /root/uwsgi/ --module welcome --logto /tmp/uwsgi.log
  9.             port            = 3031
  10.             bind            = 127.0.0.1
  11.             user            = root
  12.             wait            = yes
  13.     }

Again, you do not need to specify the socket in uWSGI, as it will be passed tothe server by xinetd.