forked from Fediversity/Fediversity
Shuffled documentation for Element Call.
This commit is contained in:
parent
19dc889db6
commit
286417ccde
GPG key ID:
43DBCC37BFDEFD72
|
|
@ -32,7 +32,10 @@ should probably follow the [worker-based setup](synapse/workers), because
|
|||
changing the architecture from monolithic to worker-based once the server is
|
||||
already in use, is a tricky task.
|
||||
|
||||
Here's a ballpark figure. Remember, your mileage will probably vary.
|
||||
Here's a ballpark figure. Remember, your mileage will probably vary. And
|
||||
remember, just adding RAM and CPU doesn't automatically scale: you'll need to
|
||||
tune [PostgreSQL](postgresql/README.md#tuning) and your workers as well so
|
||||
that your hardware is optimally used.
|
||||
|
||||
| Scenario | Architecture | CPU | RAM | Diskspace (GB) |
|
||||
| :------------------------------------ | :-----------------------------: | :----: | :----: | :------------: |
|
||||
|
|
@ -85,9 +88,9 @@ actual processing of audio and video, and that needs its own DNS entry and certi
|
|||
too. We'll use `livekit.example.com`.
|
||||
|
||||
| FQDN | Use | Comment |
|
||||
| :-------------------- | :--------------------- | :-------------------------------- |
|
||||
| `example.com` | Hosting `.well-known` | |
|
||||
| `matrix.example.com` | Synapse server | Can't be `CNAME` |
|
||||
| :-------------------- | :--------------------- | :--------------------------------------- |
|
||||
| `example.com` | Hosting `.well-known` | This is the `server_name` |
|
||||
| `matrix.example.com` | Synapse server | This is the `base_url`, can't be `CNAME` |
|
||||
| `element.example.com` | Webclient | |
|
||||
| `turn.example.com` | TURN / Element Call | Highly recommended |
|
||||
| `call.example.com` | Element Call | Optional |
|
||||
|
|
|
|||
|
|
@ -72,8 +72,8 @@ certbot certonly --nginx -d turn.example.com
|
|||
|
||||
This assumes you've already setup and started nginx (see [nginx](../nginx)).
|
||||
|
||||
The certificate files reside under `/etc/letsencrypt/live`, but coturn doesn't
|
||||
run as root, and can't read them. Therefore we create the directory
|
||||
{#fixssl}The certificate files reside under `/etc/letsencrypt/live`, but coturn
|
||||
doesn't run as root, and can't read them. Therefore we create the directory
|
||||
`/etc/coturn/ssl` where we copy the files to. This script should be run after
|
||||
each certificate renewal:
|
||||
|
||||
|
|
|
|||
|
|
@ -19,6 +19,129 @@ This bit is for later, but here's a nice bit of documentation to start:
|
|||
https://sspaeth.de/2024/11/sfu/
|
||||
|
||||
|
||||
# Overview
|
||||
|
||||
Element Call consists of a few parts, you don't have to host all of them
|
||||
yourself. In this document, we're going to host everything ourselves, so
|
||||
here's what you need.
|
||||
|
||||
* lk-jwt. This authenticates Synapse users to LiveKit.
|
||||
* LiveKit. This is the "SFU", which actually handles the audio and video, and does TURN.
|
||||
* Element Call widget. This is basically the webapplication, the part you see.
|
||||
|
||||
|
||||
# LiveKit {#livekit}
|
||||
|
||||
The actual SFU, Selective Forwarding Unit, is LiveKit; this is the part that
|
||||
handles the audio and video feeds and also does TURN (this TURN-functionality
|
||||
does not support the legacy calls, you'll need [coturn](coturn) for that).
|
||||
|
||||
Downloading and installing is easy: download the [binary from
|
||||
Github](https://github.com/livekit/livekit/releases/download/v1.8.0/livekit_1.8.0_linux_amd64.tar.gz)
|
||||
to /usr/local/bin, chown it to root:root and you're done.
|
||||
|
||||
The quickest way to do precisely that, is to run the script:
|
||||
|
||||
```
|
||||
curl -sSL https://get.livekit.io | bash
|
||||
```
|
||||
|
||||
You can do this as a normal user, it will use sudo to do its job.
|
||||
|
||||
Configuring this thing is [documented
|
||||
here](https://docs.livekit.io/home/self-hosting/deployment/). We're going to
|
||||
run LiveKit under authorization of user `turnserver`, the same users we use
|
||||
for [coturn](coturn). This user is created when installing coturn, so if you
|
||||
haven't installed that, you should create the user yourself:
|
||||
|
||||
```
|
||||
adduser --system turnserver
|
||||
```
|
||||
|
||||
{#keysecret}Create a key and secret:
|
||||
|
||||
```
|
||||
livekit-server generate-keys
|
||||
```
|
||||
|
||||
This key and secret have to be fed to lk-jwt-service too, [see here](#jwtconfig).
|
||||
Create a configuration file for livekit, `/etc/livekit/livekit.yaml`:
|
||||
|
||||
```
|
||||
port: 7880
|
||||
bind_addresses:
|
||||
- ::1
|
||||
rtc:
|
||||
tcp_port: 7881
|
||||
port_range_start: 50000
|
||||
port_range_end: 60000
|
||||
use_external_ip: true
|
||||
enable_loopback_candidate: false
|
||||
turn:
|
||||
enabled: true
|
||||
domain: livekit.example.com
|
||||
cert_file: /etc/coturn/ssl/fullchain.pem
|
||||
key_file: /etc/coturn/ssl/privkey.pem
|
||||
tls_port: 5349
|
||||
udp_port: 3478
|
||||
external_tls: true
|
||||
keys:
|
||||
# KEY: SECRET were autogenerated by livekit/generate
|
||||
# in the lk-jwt-service environment variables
|
||||
<KEY>: <SECRET>
|
||||
```
|
||||
|
||||
The certificate files are not in the usual place under
|
||||
`/etc/letsencrypt/live`, see [DNS and
|
||||
certificate (coturn)](../coturn/README.md#dnscert) why that is.
|
||||
|
||||
As stated before, we use the same user as for coturn. Because this user does
|
||||
not have the permission to read private keys under `/etc/letsencrypt`, we copy
|
||||
those files to a place where it can read them. For coturn we copy them to
|
||||
`/etc/coturn/ssl`, and if you use coturn and have this directory, LiveKit can
|
||||
read them there too.
|
||||
|
||||
If you don't have coturn installed, you should create a directory under
|
||||
`/etc/livekit` and copy the files to there. Modify the `livekit.yaml` file and
|
||||
the [script to copy the files](../coturn/README.md#fixssl) to use that
|
||||
directory.
|
||||
|
||||
The LiveKit API listens on localhost, IPv6, port 7880. Traffic to this port is
|
||||
forwarded from port 443 by nginx, which handles TLS, so it shouldn't be reachable
|
||||
from the outside world.
|
||||
|
||||
See [LiveKit's config documentation](https://github.com/livekit/livekit/blob/master/config-sample.yaml)
|
||||
for more options.
|
||||
|
||||
Now define a systemd servicefile, like this:
|
||||
|
||||
```
|
||||
[Unit]
|
||||
Description=LiveKit Server
|
||||
After=network.target
|
||||
Documentation=https://docs.livekit.io
|
||||
|
||||
[Service]
|
||||
User=turnserver
|
||||
Group=turnserver
|
||||
LimitNOFILE=500000
|
||||
Restart=on-failure
|
||||
WorkingDirectory=/etc/livekit
|
||||
ExecStart=/usr/local/bin/livekit-server --config /etc/livekit/livekit.yaml
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
```
|
||||
|
||||
Enable and start it.
|
||||
|
||||
IMPORTANT!
|
||||
|
||||
LiveKit is configured to use its built-in TURN server, using the same ports as
|
||||
[coturn](../coturn). Obviously, LiveKit and coturn are mutually exclusive in
|
||||
this setup. Shutdown and disable coturn if you use LiveKit's TURN server.
|
||||
|
||||
|
||||
# Install prerequisites
|
||||
|
||||
Define an entry in DNS for Livekit and Call, e.g. `livekit.example.com`
|
||||
|
|
@ -127,9 +250,9 @@ chgrp -R www-data /etc/lk-jwt-service
|
|||
chmod -R o-rwx /etc/lk-jwt-service
|
||||
```
|
||||
|
||||
The contents of `/etc/lk-jwt-service/config` are not fully known yet (see
|
||||
further, installation of the actual LiveKit, the SFU), but for now it's enough
|
||||
to fill it with this:
|
||||
{#jwtconfig}This is what you should put into that config file,
|
||||
`/etc/lk-jwt-service/config`. The `LIVEKIT_SECRET` and `LIVEKIT_KEY` are the
|
||||
ones you created while [configuring LiveKit](#keysecret).
|
||||
|
||||
```
|
||||
LIVEKIT_URL=wss://livekit.example.com
|
||||
|
|
@ -144,99 +267,6 @@ Now enable and start this thing:
|
|||
systemctl enable --now lk-jwt-service
|
||||
```
|
||||
|
||||
# LiveKit {#livekit}
|
||||
|
||||
The actual SFU, Selective Forwarding Unit, is LiveKit. Downloading and
|
||||
installing is easy: download the [binary from Github](https://github.com/livekit/livekit/releases/download/v1.8.0/livekit_1.8.0_linux_amd64.tar.gz)
|
||||
to /usr/local/bin, chown
|
||||
it to root:root and you're done.
|
||||
|
||||
The quickest way to do precisely that, is to run the script:
|
||||
|
||||
```
|
||||
curl -sSL https://get.livekit.io | bash
|
||||
```
|
||||
|
||||
You can do this as a normal user, it will use sudo to do its job.
|
||||
|
||||
Configuring this thing is [documented
|
||||
here](https://docs.livekit.io/home/self-hosting/deployment/).
|
||||
|
||||
Create a key and secret:
|
||||
|
||||
```
|
||||
livekit-server generate-keys
|
||||
```
|
||||
|
||||
This key/secret has to be fed to lk-jwt-service, of course. Create a
|
||||
configuration file for livekit, `/etc/livekit/livekit.yaml`:
|
||||
|
||||
```
|
||||
port: 7880
|
||||
bind_addresses:
|
||||
- ::1
|
||||
rtc:
|
||||
tcp_port: 7881
|
||||
port_range_start: 50000
|
||||
port_range_end: 60000
|
||||
use_external_ip: true
|
||||
enable_loopback_candidate: false
|
||||
turn:
|
||||
enabled: true
|
||||
domain: livekit.example.com
|
||||
cert_file: /etc/coturn/ssl/fullchain.pem
|
||||
key_file: /etc/coturn/ssl/privkey.pem
|
||||
tls_port: 5349
|
||||
udp_port: 3478
|
||||
external_tls: true
|
||||
keys:
|
||||
# KEY: secret were autogenerated by livekit/generate
|
||||
# in the lk-jwt-service environment variables
|
||||
xxxxxxxxxxxxxxx: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
|
||||
```
|
||||
|
||||
The LiveKit API listens on localhost, IPv6, port 7880. Traffic to this port is
|
||||
forwarded from port 443by nginx, which handles TLS, so it shouldn't be reachable
|
||||
from the outside world.
|
||||
|
||||
The certificate files are not in the usual place under
|
||||
`/etc/letsencrypt/live`, see [DNS and
|
||||
certificate (coturn)](../coturn/README.md#dnscert) why that is.
|
||||
|
||||
The `xxx: xxxx` is the key and secret as generated before.
|
||||
|
||||
See [LiveKit's config documentation](https://github.com/livekit/livekit/blob/master/config-sample.yaml)
|
||||
for more options.
|
||||
|
||||
Now define a systemd servicefile, like this:
|
||||
|
||||
```
|
||||
[Unit]
|
||||
Description=LiveKit Server
|
||||
After=network.target
|
||||
Documentation=https://docs.livekit.io
|
||||
|
||||
[Service]
|
||||
User=turnserver
|
||||
Group=turnserver
|
||||
LimitNOFILE=500000
|
||||
Restart=on-failure
|
||||
WorkingDirectory=/etc/livekit
|
||||
ExecStart=/usr/local/bin/livekit-server --config /etc/livekit/livekit.yaml
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
```
|
||||
|
||||
Enable and start it.
|
||||
|
||||
IMPORTANT!
|
||||
|
||||
LiveKit is configured to use its built-in TURN server, using the same ports as
|
||||
[coturn](../coturn). Obviously, LiveKit and coturn are mutually exclusive in
|
||||
this setup. Shutdown and disable coturn if you use LiveKit's TURN server.
|
||||
|
||||
|
||||
# Element Call widget {#widget}
|
||||
|
||||
This is a Node.js thingy, so start by installing yarn. Unfortunately both npm
|
||||
|
|
|
|||
|
|
@ -75,7 +75,7 @@ Make sure you add these lines under the one that gives access to the postgres
|
|||
superuser, the first line.
|
||||
|
||||
|
||||
# Tuning
|
||||
# Tuning {#tuning}
|
||||
|
||||
This is for later, check [Tuning your PostgreSQL Server](https://wiki.postgresql.org/wiki/Tuning_Your_PostgreSQL_Server)
|
||||
on the PostgreSQL wiki.
|
||||
|
|
|
|||
Loading…
Reference in a new issue