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59 lines
4.9 KiB
Markdown
59 lines
4.9 KiB
Markdown
<!--
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SPDX-FileCopyrightText: 2024 wjbeckett
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SPDX-FileCopyrightText: 2024 - 2025 Slavi Pantaleev
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SPDX-License-Identifier: AGPL-3.0-or-later
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-->
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# Setting up the Matrix RTC stack (optional)
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The playbook can install and configure the Matrix RTC (Real-Time Communication) stack.
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The Matrix RTC stack is a set of supporting components ([LiveKit Server](configuring-playbook-livekit-server.md) and [LiveKit JWT Service](configuring-playbook-livekit-jwt-service.md)) that allow the new [Element Call](configuring-playbook-element-call.md) audio/video calls to function.
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💡 If you only plan on doing audio/video calls via Matrix client (which typically embed the Element Call frontend UI within them), you only need to install the Matrix RTC stack and don't necessarily need to install [Element Call](configuring-playbook-element-call.md). See the [Decide between Element Call vs just the Matrix RTC stack](configuring-playbook-element-call.md#decide-between-element-call-vs-just-the-matrix-rtc-stack) section of the [Element Call documentation](configuring-playbook-element-call.md) for more details.
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## Prerequisites
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- A [Synapse](configuring-playbook-synapse.md) homeserver (see the warning below)
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- [Federation](configuring-playbook-federation.md) being enabled for your Matrix homeserver (federation is enabled by default, unless you've explicitly disabled it), because [LiveKit JWT Service](configuring-playbook-livekit-jwt-service.md) currently [requires it](https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3562#issuecomment-2725250554) ([relevant source code](https://github.com/element-hq/lk-jwt-service/blob/f5f5374c4bdcc00a4fb13d27c0b28e20e4c62334/main.go#L135-L146))
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- Various experimental features for the Synapse homeserver which Element Call [requires](https://github.com/element-hq/element-call/blob/93ae2aed9841e0b066d515c56bd4c122d2b591b2/docs/self-hosting.md#a-matrix-homeserver) (automatically done when Element Call is enabled)
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- A [LiveKit Server](configuring-playbook-livekit-server.md) (automatically installed when [Element Call or the Matrix RTC stack is enabled](#decide-between-element-call-vs-just-the-matrix-rtc-stack))
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- The [LiveKit JWT Service](configuring-playbook-livekit-jwt-service.md) (automatically installed when [Element Call or the Matrix RTC stack is enabled](#decide-between-element-call-vs-just-the-matrix-rtc-stack))
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- A client compatible with Element Call. As of 2025-03-15, that's just [Element Web](configuring-playbook-client-element-web.md) and the Element X mobile clients (iOS and Android).
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> [!WARNING]
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> Because Element Call [requires](https://github.com/element-hq/element-call/blob/93ae2aed9841e0b066d515c56bd4c122d2b591b2/docs/self-hosting.md#a-matrix-homeserver) a few experimental features in the Matrix protocol, it's **very likely that it only works with the Synapse homeserver**.
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## Adjusting the playbook configuration
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Add the following configuration to your `inventory/host_vars/matrix.example.com/vars.yml` file:
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```yaml
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# Enable the Matrix RTC stack.
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# This provides all supporting services for Element Call, without the Element Call frontend.
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matrix_rtc_enabled: true
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```
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## Adjusting firewall rules
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In addition to the HTTP/HTTPS ports (which you've already exposed as per the [prerequisites](prerequisites.md) document), you'll also need to open ports required by [LiveKit Server](configuring-playbook-livekit-server.md) as described in its own [Adjusting firewall rules](configuring-playbook-livekit-server.md#adjusting-firewall-rules) section.
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## Installing
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After configuring the playbook and potentially [adjusting your DNS records](#adjusting-dns-records) and [adjusting firewall rules](#adjusting-firewall-rules), run the playbook with [playbook tags](playbook-tags.md) as below:
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<!-- NOTE: let this conservative command run (instead of install-all) to make it clear that failure of the command means something is clearly broken. -->
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```sh
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ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,start
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```
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The shortcut commands with the [`just` program](just.md) are also available: `just install-all` or `just setup-all`
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`just install-all` is useful for maintaining your setup quickly ([2x-5x faster](../CHANGELOG.md#2x-5x-performance-improvements-in-playbook-runtime) than `just setup-all`) when its components remain unchanged. If you adjust your `vars.yml` to remove other components, you'd need to run `just setup-all`, or these components will still remain installed. Note these shortcuts run the `ensure-matrix-users-created` tag too.
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## Usage
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Once installed, Matrix clients which support Element Call (like [Element Web](configuring-playbook-client-element-web.md) and Element X on mobile (iOS and Android)) will automatically use the Matrix RTC stack.
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These clients typically embed the Element Call frontend UI within them, so installing [Element Call](configuring-playbook-element-call.md) is only necessary if you'd like to use it standalone - directly via a browser. |