Document missing server config options (#18122)

I was looking into the `USE_FROZEN_DICTS` option during the review of
https://github.com/element-hq/synapse/pull/18103#discussion_r1935876168
and noticed that there are several other server config options that
aren't in the docs.
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Eric Eastwood 2025-02-12 11:16:06 -06:00 committed by GitHub
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changelog.d/18122.doc Normal file
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Document missing server config options (`daemonize`, `print_pidfile`, `user_agent_suffix`, `use_frozen_dicts`, `manhole`).

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@ -162,6 +162,53 @@ Example configuration:
pid_file: DATADIR/homeserver.pid
```
---
### `daemonize`
Specifies whether Synapse should be started as a daemon process. If Synapse is being
managed by [systemd](../../systemd-with-workers/), this option must be omitted or set to
`false`.
This can also be set by the `--daemonize` (`-D`) argument when starting Synapse.
See `worker_daemonize` for more information on daemonizing workers.
Example configuration:
```yaml
daemonize: true
```
---
### `print_pidfile`
Print the path to the pidfile just before daemonizing. Defaults to false.
This can also be set by the `--print-pidfile` argument when starting Synapse.
Example configuration:
```yaml
print_pidfile: true
```
---
### `user_agent_suffix`
A suffix that is appended to the Synapse user-agent (ex. `Synapse/v1.123.0`). Defaults
to None
Example configuration:
```yaml
user_agent_suffix: " (I'm a teapot; Linux x86_64)"
```
---
### `use_frozen_dicts`
Determines whether we should freeze the internal dict object in `FrozenEvent`. Freezing
prevents bugs where we accidentally share e.g. signature dicts. However, freezing a
dict is expensive. Defaults to false.
Example configuration:
```yaml
use_frozen_dicts: true
```
---
### `web_client_location`
The absolute URL to the web client which `/` will redirect to. Defaults to none.
@ -595,6 +642,17 @@ listeners:
- names: [client, federation]
```
---
### `manhole`
Turn on the Twisted telnet manhole service on the given port. Defaults to none.
This can also be set by the `--manhole` argument when starting Synapse.
Example configuration:
```yaml
manhole: 1234
```
---
### `manhole_settings`