Web-app-pretix Role¶

Description: Self-hosted ticketing platform for events with online sales, registration management, and secure payments

Variables¶

author: Kevin Veen-Birkenbach
description: Self-hosted ticketing platform for events with online sales, registration management, and secure payments
license: Infinito.Nexus Community License (Non-Commercial)
company: Kevin Veen-Birkenbach https://www.veen.world
galaxy_tags: [‘pretix’, ‘tickets’, ‘sales’, ‘shop’]
issue_tracker_url: https://s.infinito.nexus/issues
min_ansible_version: 2.9
platforms: [{‘name’: ‘ArchLinux’, ‘versions’: [‘all’]}, {‘name’: ‘Debian’, ‘versions’: [‘all’]}, {‘name’: ‘EL’, ‘versions’: [‘all’]}, {‘name’: ‘Fedora’, ‘versions’: [‘all’]}, {‘name’: ‘Ubuntu’, ‘versions’: [‘all’]}]

README¶

Pretix¶

Description¶

Simplify event management with Pretix, an open-source ticketing system for conferences, workshops, and cultural events. Pretix empowers organizers with flexible ticket sales, attendee management, and secure payment integrations, all under your control.

Overview¶

This role deploys Pretix using Docker, automating the installation, configuration, and management of your Pretix server. It integrates with an external PostgreSQL database, Redis for caching and sessions, and an NGINX reverse proxy. The role supports advanced features such as global CSS injection, Matomo analytics, OIDC authentication, and centralized logout, making it a powerful and customizable solution within the Infinito.Nexus ecosystem.

Cosmos¶

The diagram places Pretix in the Infinito.Nexus cosmos: the components it deploys (capabilities), the central services it consumes (dependencies), and its outward reach (federation and bridged external networks).

flowchart LR
    subgraph deps [Dependencies]
        dep_svc_bkp_volume_2_local["svc-bkp-volume-2-local 💻"]
        dep_svc_db_postgres["svc-db-postgres 🐳🐝"]
        dep_svc_db_redis["svc-db-redis 🐳🐝"]
        dep_svc_net_tor["svc-net-tor 🐳🐝"]
        dep_web_app_dashboard["web-app-dashboard 🐳🐝"]
        dep_web_app_hermes["web-app-hermes 🐳🐝"]
        dep_web_app_keycloak["web-app-keycloak 🐳🐝"]
        dep_web_app_matomo["web-app-matomo 🐳🐝"]
        dep_web_app_openclaw["web-app-openclaw 🐳🐝"]
        dep_web_app_openwebui["web-app-openwebui 🐳🐝"]
        dep_web_app_prometheus["web-app-prometheus 🐳🐝"]
        dep_web_app_stalwart["web-app-stalwart 🐳🐝"]
        dep_web_svc_css["web-svc-css 💻"]
        dep_web_svc_logout["web-svc-logout 🐳🐝"]
    end
    subgraph role [web-app-pretix 🐳🐝]
        svc_sso["sso"]
        svc_logout["logout"]
        svc_dashboard["dashboard"]
        svc_matomo["matomo"]
        svc_email["email"]
        svc_redis["redis"]
        svc_postgres["postgres"]
        svc_pretix["pretix"]
        svc_css["css"]
        svc_prometheus["prometheus"]
        svc_tor["tor"]
        svc_container_backup["container_backup"]
        svc_pretixmcp["pretixmcp"]
        svc_openwebui["openwebui"]
        svc_hermes["hermes"]
        svc_openclaw["openclaw"]
        svc_flowise["flowise ❌"]
    end
    dep_svc_bkp_volume_2_local -. "0..1" .-> svc_container_backup
    dep_svc_db_postgres -. "0..1" .-> svc_postgres
    dep_svc_db_redis -. "0..1" .-> svc_redis
    dep_svc_net_tor -. "0..1" .-> svc_tor
    dep_web_app_dashboard -. "0..1" .-> svc_dashboard
    dep_web_app_hermes -. "0..1" .-> svc_hermes
    dep_web_app_keycloak -. "0..1" .-> svc_sso
    dep_web_app_matomo -. "0..1" .-> svc_matomo
    dep_web_app_openclaw -. "0..1" .-> svc_openclaw
    dep_web_app_openwebui -. "0..1" .-> svc_openwebui
    dep_web_app_prometheus -. "0..1" .-> svc_prometheus
    dep_web_app_stalwart -. "0..1" .-> svc_email
    dep_web_svc_css -. "0..1" .-> svc_css
    dep_web_svc_logout -. "0..1" .-> svc_logout

Solid 1:1 edges are fixed relationships; dashed 0..1 edges are conditional (enabled only in matching deployments); red 0..0 edges are turned off in this role. Node markers show the role’s deploy modes (💻 host, 🐳 compose, 🐝 swarm); ❌ marks a service that is explicitly turned off, and ⚙️ an Ansible role dependency declared in meta/main.yml.

Features¶

Pretix Installation: Deploys Pretix in a dedicated Docker container.
External PostgreSQL Database: Configures Pretix to use a centralized PostgreSQL service.
Redis Integration: Adds Redis support for caching and session handling.
NGINX Reverse Proxy Integration: Provides secure access and HTTPS termination.
OIDC Authentication: Seamless integration with identity providers such as Keycloak.
Centralized Logout: Unified logout across applications in the ecosystem.
Matomo Analytics & Global CSS: Built-in support for analytics and unified styling.

Quick Setup¶

Development¶

Clone, set up the workstation, and deploy Pretix onto the local stack:

git clone https://github.com/infinito-nexus/core.git
cd core
make onboard
make compose-deploy mode=reinstall apps=web-app-pretix full_cycle=false

Production¶

Run the published image to provision the inventory and deploy Pretix to a managed server (the mounted volume persists the inventory):

APP=web-app-pretix
HOST=<your-server>
DOMAIN=<your-domain>
TLS_MODE=self_signed
SSH_PUBLIC_KEY="<your-ssh-public-key>"

docker run --rm -it \
  -v "$PWD/inventories:/etc/infinito.nexus/inventories" \
  -e APP="$APP" -e HOST="$HOST" -e DOMAIN="$DOMAIN" -e TLS_MODE="$TLS_MODE" -e SSH_PUBLIC_KEY="$SSH_PUBLIC_KEY" \
  ghcr.io/infinito-nexus/core/debian bash -c '
    INVENTORY=/etc/infinito.nexus/inventories/production
    infinito administration inventory provision "$INVENTORY" \
      --inventory-file "$INVENTORY/devices.yml" \
      --host "$HOST" \
      --include "$APP" \
      --vars "{\"TLS_MODE\": \"$TLS_MODE\", \"DOMAIN_PRIMARY\": \"$DOMAIN\", \"users\": {\"administrator\": {\"authorized_keys\": [\"$SSH_PUBLIC_KEY\"]}}}" &&
    infinito administration deploy dedicated "$INVENTORY/devices.yml" \
      --password-file "$INVENTORY/.password" \
      --diff -vv'

Addons¶

Role-level extensions are declared in `meta/addons/ <meta/addons/>`__ following the unified addon contract (requirement 026).

Addon	Mechanism	Default state	Bridges
`pretix-oidc`	plugin	enabled when `sso` is wired (`services .sso.enabled`)	`sso`

The oidc plugin (pretix-oidc, pinned to 2.3.1) is pip-installed at image build time and delivers Keycloak/OIDC login. It auto-enables whenever the SSO partner role (web-app-keycloak) is co-deployed and stays off otherwise.

Further Resources¶

Persona contract opt-outs¶

The shared biber and administrator persona helpers are declared blocked in templates/playwright.env.j2. The role provisions no pretix account at all — tasks/main.yml only deploys the stack — while pretix’s native auth backend authenticates a pretix User row that is created by the interactive first-run setup. The pretix-oidc backend added on top lives on pretix’s /control login page, whereas the role’s base URL serves the public ticket shop that the baseline scenarios in files/playwright/playwright.spec.js assert. Seeding a backend user is the path back to a runnable persona journey.

Credits¶

Implemented by Kevin Veen-Birkenbach. Part of the Infinito.Nexus Project and maintained by Kevin Veen-Birkenbach. Licensed under the Infinito.Nexus Community License (Non-Commercial).