computer-playbook/roles/web-app-opentalk/README.md

OpenTalk

Description

OpenTalk is a sovereign open-source video conferencing platform developed by the Heinlein Group. It combines a Rust controller, a LiveKit-based WebRTC media server, and a React web frontend.

Overview

This role deploys the OpenTalk stack using Docker Compose and exposes the web frontend at open.talk.{{ DOMAIN_PRIMARY }} through the central reverse proxy. It runs the Rust controller, the LiveKit WebRTC media server, the React web frontend, a dedicated Redis, a dedicated MinIO bucket for controller assets, a RabbitMQ broker, and the OpenTalk recorder for meeting MP4 archives. The deployment integrates with the shared Keycloak realm via OIDC and reuses svc-db-postgres and web-svc-coturn for relational data and STUN/TURN. For identity wiring details see IAM.md and LDAP.md.

Cosmos

The diagram places OpenTalk 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_openldap["svc-db-openldap 🐳🐝"]
        dep_svc_db_postgres["svc-db-postgres 🐳🐝"]
        dep_svc_db_redis["svc-db-redis 🐳🐝"]
        dep_web_app_dashboard["web-app-dashboard 🐳🐝"]
        dep_web_app_keycloak["web-app-keycloak 🐳🐝"]
        dep_web_app_matomo["web-app-matomo 🐳🐝"]
        dep_web_app_prometheus["web-app-prometheus 🐳🐝"]
        dep_web_app_seaweedfs["web-app-seaweedfs 🐳🐝"]
        dep_web_app_stalwart["web-app-stalwart 🐳🐝"]
        dep_web_svc_coturn["web-svc-coturn 🐳🐝"]
        dep_web_svc_css["web-svc-css 💻"]
        dep_web_svc_logout["web-svc-logout 🐳🐝"]
    end
    subgraph role [web-app-opentalk 🐳🐝]
        svc_sso["sso"]
        svc_ldap["ldap ❌"]
        svc_logout["logout"]
        svc_dashboard["dashboard"]
        svc_matomo["matomo"]
        svc_email["email"]
        svc_coturn["coturn"]
        svc_postgres["postgres"]
        svc_redis["redis"]
        svc_opentalk["opentalk"]
        svc_controller["controller"]
        svc_livekit["livekit"]
        svc_minio["minio ❌"]
        svc_seaweedfs["seaweedfs"]
        svc_rabbit["rabbit"]
        svc_recorder["recorder"]
        svc_css["css"]
        svc_prometheus["prometheus"]
        svc_tor["tor ❌"]
        svc_container_backup["container_backup"]
    end
    dep_svc_bkp_volume_2_local -. "0..1" .-> svc_container_backup
    dep_svc_db_openldap -- "0..0" --> svc_ldap
    dep_svc_db_postgres -. "0..1" .-> svc_postgres
    dep_svc_db_redis -. "0..1" .-> svc_redis
    dep_web_app_dashboard -. "0..1" .-> svc_dashboard
    dep_web_app_keycloak -- "1:1" --> svc_sso
    dep_web_app_matomo -. "0..1" .-> svc_matomo
    dep_web_app_prometheus -. "0..1" .-> svc_prometheus
    dep_web_app_seaweedfs -. "0..1" .-> svc_seaweedfs
    dep_web_app_stalwart -. "0..1" .-> svc_email
    dep_web_svc_coturn -. "0..1" .-> svc_coturn
    dep_web_svc_css -. "0..1" .-> svc_css
    dep_web_svc_logout -. "0..1" .-> svc_logout
    linkStyle 1 stroke:red;

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

• Sovereign Video Conferencing: Self-host meetings under your own domain without external SaaS dependency.
• WebRTC Media via LiveKit: Real-time audio, video, and screen sharing through a high-performance SFU.
• Single Sign-On: Frontend and controller share one Keycloak client and realm.
• Federated User Lookup: Invitee search resolves through the Keycloak admin Web API, so any user federated from OpenLDAP into Keycloak becomes findable inside OpenTalk.
• OpenCloud File Integration: Pick files from OpenCloud in a meeting without re-authenticating when web-app-opencloud is deployed alongside.
• Meeting Recordings: The controller starts recordings on a dedicated recorder over its REST API, and the recorder stores MP4 archives in MinIO.
• Shared Infrastructure: Reuses svc-db-postgres for relational data and web-svc-coturn for STUN and TURN.

Quick Setup

Development

Clone, set up the workstation, and deploy OpenTalk 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-opentalk full_cycle=false

Production

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

APP=web-app-opentalk
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'

Developer Notes

See IAM.md for the OIDC and Keycloak admin Web API setup, and LDAP.md for the LDAP federation chain. Pending follow-up work is tracked in TODO.md.

Further Resources

• opentalk.eu
• OpenTalk documentation
• OpenTalk setup template

Persona contract opt-outs

The shared biber and administrator persona helpers are declared blocked in templates/playwright.env.j2. The OpenTalk frontend is a public-client OIDC single-page app — the container env carries nothing but the issuer and the client id, there is no server-side session and no HTML login form — so the role drives it with its own redirect-racing helper keyed on LOGIN_* / BIBER_* instead of the ADMIN_* pair the shared helper expects, and the browser-side session leaves the contract's in-app logout leg without a target. Both personas' Keycloak → dashboard chain is covered by files/playwright/test-sso-login.js.

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).