pretix¶

pretix is an open source ticketing solution. It is written in Django and can be highly customized for the process of ticket sales.

Note

For this guide you should be familiar with the basic concepts of

Python and its package manager pip
supervisord

License¶

All relevant legal information can be found here

https://pretix.eu/about/en/terms

Prerequisites¶

You’ll need your MySQL credentials. Get them with my_print_defaults:

[isabell@stardust ~]$ my_print_defaults client
--default-character-set=utf8mb4
--user=isabell
--password=MySuperSecretPassword
[isabell@stardust ~]$

Your URL needs to be setup:

[isabell@stardust ~]$ uberspace web domain list
isabell.uber.space
[isabell@stardust ~]$

Installation¶

Download¶

Get the pretix source code from Github and clone it to ~/pretix, be sure to replace the pseudo branch number release/6.6.x here with the latest release branch from the Github repository at https://github.com/pretix/pretix/branches/active:

[isabell@stardust ~]$ git clone https://github.com/pretix/pretix.git --depth=1 --branch release/6.6.x
[...]
Receiving objects: 100% (1852/1852), 7.06 MiB | 910.00 KiB/s, done.
Resolving deltas: 100% (337/337), done.
Checking connectivity... done.
[isabell@stardust ~]$

Also, you need to create an extra data folder:

[isabell@stardust ~]$ mkdir ~/pretix_data
[isabell@stardust ~]$

Install dependencies¶

Install the requirements for pretix:

[isabell@stardust ~]$ pip3.6 install -r ~/pretix/src/requirements.txt --user
[...]
Running setup.py install for mt-940 ... done
Running setup.py install for vobject ... done
Running setup.py install for vat-moss ... done
[...]
[isabell@stardust ~]$

Configuration¶

Now you need to set up the configuration, create the file ~/.pretix.cfg and insert the following content:

Warning

Be sure, to replace all values with correct data of your own Uberspace account!

  [pretix]
  instance_name=Isabells pretix
  url=https://isabell.uber.space
  currency=EUR
  datadir=/home/isabell/pretix_data
  trust_x_forwarded_proto=on

  [database]
  backend=mysql
  name=isabell_pretix
  user=isabell
  password=MySuperSecretPassword
  host=localhost

  [mail]
  from=isabell@uber.space
  host=stardust.uberspace.de
  user=isabell@uber.space
  password=MySuperSecretPassword
  port=587
  tls=on

Create database¶

Run this code to create the database <username>_pretix in MySQL:

[isabell@stardust ~]$ mysql -e "CREATE DATABASE ${USER}_pretix DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;"
[isabell@stardust ~]$

You will also need to install a mysqlclient package:

[isabell@stardust ~]$ pip3.6 install mysqlclient --user
[...]
Successfully installed mysqlclient-1.3.13
[isabell@stardust ~]$

Initialize database¶

Initialize the pretix database tables and generate the static files:

[isabell@stardust ~]$ python3.6 ~/pretix/src/manage.py migrate
[isabell@stardust ~]$ python3.6 ~/pretix/src/manage.py rebuild
[isabell@stardust ~]$

Gunicorn¶

Install Gunicorn as backend server:

[isabell@stardust ~]$ pip3.6 install gunicorn --user
[isabell@stardust ~]$

Web Backend¶

Note

Pretix is running on port 9000.

To make the application accessible from the outside, configure a web backend:

[isabell@stardust ~]$ uberspace web backend set / --http --port <port>
Set backend for / to port <port>; please make sure something is listening!
You can always check the status of your backend using "uberspace web backend list".
[isabell@stardust ~]$

Service¶

Finally, you should set up a service that keeps pretix alive while you are gone. Therefor create the file ~/etc/services.d/pretix.ini with the following content:

[program:pretix]
command=gunicorn --reload --chdir %(ENV_HOME)s/pretix/src --bind 0.0.0.0:9000 --workers 4 pretix.wsgi --name pretix --max-requests 1200 --max-requests-jitter 50
autostart=true
autorestart=true
stopsignal=INT

After creating the configuration, tell supervisord to refresh its configuration and start the service:

[isabell@stardust ~]$ supervisorctl reread
SERVICE: available
[isabell@stardust ~]$ supervisorctl update
SERVICE: added process group
[isabell@stardust ~]$ supervisorctl status
SERVICE                            RUNNING   pid 26020, uptime 0:03:14
[isabell@stardust ~]$

If it’s not in state RUNNING, check your configuration.

Now point your Browser to your installation URL https://isabell.uber.space. You will find the administration panel at https://isabell.uber.space/control.

Use admin@localhost as username and admin as password for your first login. You should change this password immediately after login!

Updates¶

Note

Check the update feed regularly to stay informed about the newest version.

If there is a new version available, update your branch according to the version number (v6.6.6 would be release/6.6.x)

[isabell@stardust ~]$ cd ~/pretix
[isabell@stardust pretix]$ git pull origin release/6.6.x
[isabell@stardust pretix]$

Tested with pretix 2.1.0 and Uberspace 7.1.15.0

Written by: ezra <ezra@posteo.de>

This guide was written with the help of a former text on “bullshit”, thanks to Nathan.