For running:

• add /etc/hosts - 127.0.0.1 www.less.tk
• pip install django-hosts (https://django-hosts.readthedocs.io)
• usage ver. django 1.11.4
• python manage.py runserver

For update cert in runtime

• I usage letsencrypt cert, for his update I use .sh script form repo dehydrated very simple path 👍