kevinveenbirkenbachandClaude Opus 4.7
16bdbf03d7
Three classes of drift cleaned up across 85 .md files:
- Em-dashes: replaced ` — ` with the contextually correct separator
(colon for `term: explanation`, period to split clauses across
sentences/source lines, parentheses for asides, semicolon for
tight-linked continuations). Two intentional exceptions remain
in `docs/contributing/documentation.md` (the rule literal) and
inside a fenced ```sh block in `docs/contributing/actions/debugging/ci.md`.
- SPOT self-labels: rewrote "This is the SPOT for X" to describe
the subject directly ("This directory holds X" / "This file
describes X"). Cross-references to other artefacts' canonical
role remain unchanged.
- Heading-emoji position: moved leading-emoji headings (`# 🧩 Title`)
to trailing position (`# Title 🧩`) per the headline rule that
emojis MUST come after the title text.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2.3 KiB
Coturn
This folder contains the role to deploy and manage a Coturn service.
Description
Coturn is a free and open-source TURN (Traversal Using Relays around NAT) and STUN (Session Traversal Utilities for NAT) server.
It enables real-time communication (RTC) applications such as WebRTC to work reliably across NATs and firewalls.
Without TURN/STUN, video calls, conferencing, and peer-to-peer connections often fail due to NAT traversal issues.
Coturn solves this by acting as a relay server and/or discovery service for public IP addresses.
More background:
- Wikipedia: Traversal Using Relays around NAT
- Wikipedia: Session Traversal Utilities for NAT
- Official Coturn Docs: https://github.com/coturn/coturn/wiki
Overview
This role deploys Coturn via Docker Compose using the sys-stk-semi-stateless stack.
It automatically configures:
- TURN and STUN listening ports
- Relay port ranges
- TLS certificates (via Let’s Encrypt integration)
- Long-term credentials and/or REST API secrets
Typical use cases:
- Nextcloud Talk
- Jitsi
- BigBlueButton
- Any WebRTC-based application
Features
- Stateless container deployment (no database or persistent volume required)
- Automatic TLS handling via
sys-stk-front-base - TURN and STUN support over TCP and UDP
- Configurable relay port ranges for scaling
- Integration into Infinito.Nexus inventory/variable system
Further Resources
- Coturn Project: github.com/coturn/coturn
- Coturn Wiki: github.com/coturn/coturn/wiki
- TURN on Wikipedia: en.wikipedia.org/wiki/Traversal_Using_Relays_around_NAT
- STUN on Wikipedia: en.wikipedia.org/wiki/STUN
Credits
Developed and maintained by Kevin Veen-Birkenbach. Learn more at veen.world. Part of the Infinito.Nexus Project. Licensed under the Infinito.Nexus Community License (Non-Commercial).