Ansible role for Pretix

Ansible role for a pretix manual installation.

Requirements

• Database: PostgreSQL (recommended), MySQL (5.7 or newer) or MariaDB (10.2.7 or newer) or SQLite (not recommended for production)
• Celery: Redis, RabbitMQ (or another specified in Celery docs)
• Mail-Server (SMTP)

Role Variables

Installation

Variable Name	Function	Default value	Comment
pretix_user	User created for running the pretix service	pretix
pretix_group	Group for the user created for the pretix service	{{ pretix_user }}
pretix_version	Version that is going to be installed (required)
pretix_systemd_service_web_name	The name of the web systemd service file	pretix-web
pretix_systemd_service_worker_name	The name of the worker systemd service file	pretix-worker
pretix_gunicorn_worker	Number of worker that gunicorn runs	5
pretix_celery_concurrency	The name of the worker systemd service file	8
pretix_base_path	Installation base path	/opt/pretix	Without a trailing slash
pretix_config_path	Installation base path	{{ pretix_base_path }}/config	Without a trailing slash
pretix_venv_path	Python virtual environment path	{{ pretix_base_path }}/.venv	Should be a sub-directory of pretix_base_path; without a trailing slash
pretix_venv_command	Command for creating the virtual environment	python3 -m venv
pretix_bind_address	Address gunicorn listens on (required)		either socket or host:port
pretix_cron_minute	Minutes for the cronjob that runs the management command runperiodic	15,45	should be between every minute and every hour

Configuration File (pretix.cfg)

The configuration is built up, following https://docs.pretix.eu/en/latest/admin/config.html.

Block: Pretix

Variable Name	Function	Default value	Comment
pretix_pretix_instance_name	Name of the pretix instance (required)
pretix_pretix_url	The installation’s full URL (required)		Without a trailing slash
pretix_pretix_currency	The default currency as a three-letter code	EUR
pretix_pretix_datadir	The local path to a data directory that will be used for storing user uploads and similar data	{{ pretix_base_path }}/data
pretix_pretix_trust_x_forwarded_for	Specifies whether the X-Forwarded-For header can be trusted (useful for reverse proxy)	off
pretix_pretix_trust_x_forwarded_proto	Specifies whether the X-Forwarded-Proto header can be trusted	off
You can also add any additional config to the pretix block via the pretix_pretix_additional_config variable.

Block: Locale

Variable Name	Function	Default value	Comment
pretix_locale_default	The system's default locale	en
pretix_locale_timezone	The system’s default timezone	UTC	as a pytz name

Block: Database

Variable Name	Function	Default value	Comment
pretix_database_backend	The Database backend		One of postgresql (recommended), mysql, oracle or sqlite3 (not recommended for production)
pretix_database_name	The name of the database (required)
pretix_database_user	The user of the database (required when not using sqlite3)
pretix_database_password	The password of the user (required when not using sqlite3)
pretix_database_host	The host of the database (required when not using sqlite3)
pretix_database_port	The port used to connect to the database server (required when not using sqlite3)
pretix_database_galera	Indicates if the database backend is a MySQL/MariaDB Galera cluster		Use only if backend is mysql. Options: true/false

Block: Mail

Variable Name	Function	Default value	Comment
pretix_mail_from	The e-mail address set as From header in outgoing e-mails	pretix@{{ ansible_fqdn }}
pretix_mail_host	The host of the e-mail server	localhost
pretix_mail_port	The port used to connect to the mail server	25
pretix_mail_user	The user used to connect to the mail server
pretix_mail_password	The password of the user
pretix_mail_ssl	Use SSL/TLS for the connection to the mail server	off
pretix_mail_tls	Use STARTTLS for the connection to the mail server	off
pretix_mail_admins	List of E-Mail addresses that will be notified about every 500-error thrown by pretix		comma-separated list

Block: Django

Variable Name	Function	Default value	Comment
pretix_django_secret	Secret for Django (recommended)		Should be 50 character long string. If not provided pretix will generate one itself and save it to the filesystem.
pretix_django_debug	Whether Django should run in debug mode	false	Never enable in production!
pretix_django_profile	Enable code profiling for a random subset of requests.		Documentation

Block: Metrics

Redis server is required for metrics-collection.

Variable Name	Function	Default value	Comment
pretix_metrics_enabled	Whether metrics endpoint should be activated	false	true/false
pretix_metrics_user	User for metrics endpoint (required when metrics endpoint is enabled)
pretix_metrics_passphrase	Passphrase for user for metrics endpoint (required when metrics endpoint is enabled)

Block: Memcached

Variable Name	Function	Default value	Comment
pretix_memcached_location	Location of memcached		Either a host:port combination or a socket file

Block: Redis

Variable Name	Function	Default value	Comment
pretix_redis_location	The location of redis		in URL form (either redis://[:password]@localhost:6379/0 or unix://[:password]@/path/to/socket.sock?db=0)
pretix_redis_session	Whether redis should be used as session storage	true

Block: Celery

Variable Name	Function	Default value	Comment
pretix_celery_broker	URL for celery broker (required)
pretix_celery_backend	URL for celery backend (required)

Block: Sentry

Variable Name	Function	Default value	Comment
pretix_sentry_dsn	Sentry DSN (created by sentry installation)

Other Blocks

You can put any blocks not mentioned above into the pretix_additional_config variable. The value of this variable is put at the end of pretix.cfg

Dependencies

This role does not have any dependencies.

Example Playbook

Including an example of how to use your role (for instance, with variables passed in as parameters) is always nice for users too:

- hosts: servers
  roles:
     - {
        role: em0lar.pretix,
        pretix_version: "3.7.0",
        pretix_bind_address: "127.0.0.1:8000",
        pretix_pretix_instance_name: "Example Pretix",
        pretix_pretix_url: "https://pretix.example.org",
        pretix_database_backend: "postgresql",
        pretix_database_name: "pretix",
        pretix_database_user: "pretix",
        pretix_database_password: "supersecurepassword",
        pretix_database_host: "localhost",
        pretix_celery_broker: "redis://localhost:6379/0",
        pretix_celery_backend: "redis://localhost:6379/0"
      }

License

GPL-3.0