Edit the file ansible/inventories/production, and fill in the name of your destination server. Here is an example of such a file:
[webapp]
my.server.com ansible_ssh_user=root
Then run:
python manage.py deploy --dest production
In addition to a destination server, you can also deploy to staging, or a beta server to test your deployment before hitting production.
manage.py deploy --dest also understand the vagrant argument, causing installation on a vagrant instance, and localhost meaning deploying on the local machine.