forked from Telodendria/Telodendria
Convert configuration documentation.
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# Configuration
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Telodendria is designed to be configurable. It is configured using
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JSON, which is intended to be submitted to the [Administrator
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API](admin/README.md). This document details Telodendria's configuration
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JSON format, which is used in both the administrator API and on-disk
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in the database. The configuration file on the disk in the databsae
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is `config.json`, though that file should not be edited by hand.
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Use the API described in
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[Administrator API → Configuration](admin/config.md).
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## JSON Format
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Telodendria's configuration is just a JSON object in the standard
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key-value form:
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```json
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{
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"serverName": "telodendria.io",
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"listen": [
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{
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"port": 8008,
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"tls": false
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}
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]
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/* ... */
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}
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```
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Some keys, called *directives* in this document, have values that are
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objects themselves.
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## Directives
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Here are the top-level directives:
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- **listen:** `Array`
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An array of listener description objects. Telodendria supports
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listening on multiple ports, and each port is configured
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independently of the others. A listener object looks like this:
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- **port:** `integer`
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The port to listen on. Telodendria will bind to all interfaces,
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so it is recommended to configure your firewall to only allow
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access on the desired interfaces. Note that Telodendria offers all
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APIs over each port, including the administrator APIs; there is no
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way to control which APIs are made available over which ports. If
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this is a concern, a reverse-proxy such as `relayd` can be placed
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in front of Telodendria to block access to undesired APIs.
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- **tls:** `Object|null|false`
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Telodendria can be compiled with TLS support. If it is, then a
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particular listener can be set to use TLS for connections. If
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**tls** is not `null` or `false`, then it can be an object with
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the following directives:
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- **cert:** `String`
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The full path—or path relative to the data
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directory—of the certificate file to load. The certificate
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file should be in the format expected by the platform's TLS
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library.
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- **key:** `String`
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Same as **cert**, but this should be the private key that matches
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the certificate being used.
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- **threads:** `Integer`
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How many worker threads to spin up to handle requests for this
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listener. This should generally be less than the total CPU core
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count, to prevent overloading the system. The most efficient number
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of threads ultimately depends on the configuration of the machine
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running Telodendria, so you may just have to play around with
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different values here to see which gives the best performance.
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Note that this can be set as low as 0; in that case, the listener
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will never respond to requests. Each listener needs to have at
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least one thread to be useful. Also note that Telodendria may spin
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up additional threads for background work, so the actual total
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thread count at any given time may exceed the sum of threads
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specified in the configuration.
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This directive is optional. The default value is `4` in the upstream
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code, but your software distribution may have patched this to be
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different.
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- **maxConnections:** `Integer`
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The maximum number of simultanious connections to allow to the
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daemon. This option prevents the daemon from allocating large
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amounts of memory in the event that it undergoes a denial of
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service attack. It is optional, defaults to `32`, and typically
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does not need to be adjusted.
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- **serverName:** `String`
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Configure the domain name of your homeserver. Note that Matrix
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servers cannot be migrated to other domains, so once this is set,
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it should never change unless you want unexpected things to happen
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or you want to start over. **serverName** should be a DNS name that
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can be publicly resolved. This directive is required.
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- **baseUrl:** `String`
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Set the server's base URL. **baseUrl** should be a valid URL,
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complete with the protocol. It does not need to be the same as the
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server name; in fact, it is common for a subdomain of the server name
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to be the base URL for the Matrix homeserver.
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This URL is the URL at which Matrix clients will connect to the
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server, and is thus served as a part of the `.well-known`
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manifest.
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This directive is optional. If unspecified, it is automatically
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deduced from the server name.
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- **identityServer:** `String`
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The identity server that clients should use to perform identity
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lookups. **identityServer** folows the same rules as **baseUrl**.
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It also is optional, and is set to be the same as the **baseUrl**
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if left unspecified.
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- **runAs:** `Object`
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The effective Unix user and group to drop to after binding to the
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socket and completing any setup that may potentially require
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elevated privileges. This directive only takes effect if
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Telodendria is started as the root user, and is used as a security
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mechanism. If this option is set and Telodendria is started as a
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non-privileged user, then a warning is printed to the log if that
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user and group do not match what's specified here. This directive
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is optional, but should be used as a sanity check even if not
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running as `root`, just to make sure you have your permissions
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working properly.
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This directive takes an object with the following directives:
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- **uid:** `String`
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The Unix username to switch to. If **runAs** is specified, this
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directive is required.
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- **gid:** `String`
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The Unix group to switch to. This directive is optional; if left
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unspecified, then the value of **uid** is copied.
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- **federation:** `Boolean`
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Whether or not to enable federation with other Matrix homeservers.
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Matrix by its very nature is a federated protocol, but if you just
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want to rn your own internal chat server with no contact with the
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outside, then you can use this option to disable federation. It is
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highly recommended to set this to `true`, however, if you wish to
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be able to communicate with users on other Matrix servers. This
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directive is required.
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- **registration:** `Boolean`
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Whether or not to enable new user registration or not. For security
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and anti-spam reasons, you can set this to `false`. If you do, you
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can still allow only certain users to be registered using
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registration tokens, which can be managed via the administrator API.
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This directive is required.
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In an ideal world, everyone would run their own Matrix homeserver,
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so no public registration would ever be required. Unfortunately,
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not everyone has the means to run their own homeserver, especially
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because of the fact that IPv4 addresses are becoming increasingly
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hard to come by. If you would like to provide a service to those
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that are unable to run their homeserver, then set this to `true`,
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thereby allowing anyone to create an account.
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Telodendria *should* be capable of handling a large amount of users
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without difficulty, but it is targetted at smaller deployments.
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- **log:** `Object`
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The logging configuration. Telodendria uses its own logging
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facility, which can output logs to standard output, a file, or the
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syslog. This directive is required, and it takes an object with the
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following directives:
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- **output:** `Enum`
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The log output destination. This can either be `stdout`, `file`,
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or `syslog`. If set to `file`, Telodendria will log to
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`telodendria.log` inside the data directory.
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- **level:** `Enum`
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The level of messages to log. Each level shows all the levels above
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it. The levels are as follows:
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- `error`
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- `warning`
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- `notice`
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- `message`
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- `debug`
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For example, setting the level to `error` will show only errors,
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while setting the level to `warning` will show both warnings
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*and* errors. The `debug` level shows all messages.
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- **timestampFormat:** `Enum`
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If you want to customize the timestamp format shown in the log,
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or disable it altogether, you can do so via this option. Acceptable
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values are `none`, `default`, or a formatter string as described
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by your system's `strftime()` documentation. This option only
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applies if **log** is `stdout` or `file`.
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- **color:** `Boolean`
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Whether or not to enable colored output on TTYs. Note that ANSI
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color sequences will not be written to a log file, only a real
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terminal, so this option only applies if the log is being written
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to a standard output which is connected to a terminal.
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- **maxCache:** `Integer`
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The maximum size of the cache. Telodendria relies heavily on caching
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for performance reasons. The cache grows as data is loaded from the
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data directory. All cache is stored in memory. This option limits the
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size of the memory cache. If you have a system with a lot of memory
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to spare, you'll get better performance if this option is set higher.
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Otherwise, this value should be lowered on systems that have a
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minimal amount of memory available.
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## Examples
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A number of example configuration files are shipped with Telodendria's
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source code. They can be found in the `contrib/` directory if you are
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viewing the source code directly. Otherwise, if you installed
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Telodendria from a package, it is possible that the example
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configurations were placed in the default locations for such files on
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your operating system.
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@ -1,218 +0,0 @@
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.Dd $Mdocdate: April 20 2023 $
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.Dt TELODENDRIA-CONFIG 7
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.Os Telodendria Project
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.Sh NAME
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.Nm telodendria-config
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.Nd Telodendria configuration.
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.Sh DESCRIPTION
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.Pp
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Telodendria is designed to be configurable. It is configured using
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JSON, which is intended to be submitted via the administrator API.
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This page documents Telodendria's configuration JSON format, which
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is used both in the administrator API, and on the disk in the
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database. The configuration file on the disk in the database is
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.Pa config.json ,
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though that file should not be edited directly. Use the API described
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in
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.Xr telodendria-admin 7
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instead.
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.Sh DIRECTIVES
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Here are the top-level directives:
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.Bl -tag -width Ds
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.It Ic listen Ar listenArr
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An array of listener description objects. Telodendria supports
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listening on multiple ports, and each port is configured
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independently of the others. A listener description object looks
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like this:
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.Bl -tag -width Ds
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.It Ic port Ar port
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The port to listen on. Telodendria will bind to all interfaces, so it
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is recommended to configure your firewall so you can control what is
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allowed to access the Telodendria ports. Note that
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Telodendria offers all APIs over each port; there is no way to
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control which APIs are available over which ports, although all
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APIs should be safe against attacks, so this should not be a
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major concern.
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.Pp
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.Ar port
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should be a decimal port number. This directive is required. Common
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port numbers are 8008 for non-TLS, and 8448 for TLS.
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.It Ic tls Ar tlsObj|null|false
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Telodendria can be compiled with TLS support. If it is, then a
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particular listener can be set to use TLS for connections. If
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.Ic tls
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is not
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.Ar null
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or
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.Ar false ,
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then it can be an object with the following directives:
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.Bl -tag -width Ds
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.It Ic cert Ar file
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A certificate file in the format native to the platform's TLS
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library. This can be an absolute path, otherwise it is relative
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to the data directory.
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.It Ic key Ar file
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A key file in the format native to the platform's TLS library.
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It follows the same rules as the certificate file.
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.El
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.El
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.It Ic serverName Ar name
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Configure the domain name of your homeserver. Note that Matrix servers
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cannot be migrated to other domains, so once this is set, it should never
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change unless you want unexpected things to happen, or you want to start
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over.
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.Ar name
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should be a DNS name that can be publically resolved. This directive
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is required.
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.It Ic baseUrl Ar url
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Set the server's base URL.
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.Ar url
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should be a valid URL, complete with the protocol. It does not need to
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be the same as the server name; in fact, it is common for a subdomain of
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the server name to be the base URL for the Matrix homeserver.
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.Pp
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This URL is the URL at which Matrix clients will connect to the server,
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and is thus served as a part of the
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.Pa .well-known
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manifest.
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.Pp
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This directive is optional. If it is not specified, it is automatically
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deduced from the server name.
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.It Ic identityServer Ar url
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The identity server that clients should use to perform identity lookups.
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.Pp
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.Ar url
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follows the same rules as
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.Ic baseUrl .
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.Pp
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This directive is optional. If it is not specified, it is automatically
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set to be the same as the base URL.
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.It Ic runAs Ar uidObj
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The effective UNIX user and group to drop to after binding to the socket
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and changing the filesystem root for the process. This only works if
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Telodendria is running as the root user, and is used as a security mechanism.
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If this option is set and Telodendria is started as a non-priviledged user,
|
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then a warning is printed to the log if that user does not match what's
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specified here. This directive is optional, but should be used as a sanity
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check, if nothing more, to make sure the permissions are working properly.
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.Pp
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This directive takes an object with the following directives:
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.Bl -tag -width Ds
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.It Ic uid Ar user
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The UNIX username to drop to. If
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.Ic runAs
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is specified, this directive is required.
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.It Ic gid Ar group
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The UNIX group to drop to. This directive is optional; if it is not
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specified, then the value of
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.Ic uid
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is copied.
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.El
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.Ic log
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directive is configured to write to a file, the log file will be written
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in the data directory.
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.Ar directory
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should be an absolute path, under which all Telodendria data will live.
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.It Ic federation Ar true|false
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Whether to enable federation with other Matrix homeservers or not. Matrix is
|
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by its very nature a federated protocol, but if you just want to run your
|
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own internal chat server with no contact with the outside, then you can use
|
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this option to disable federation. It is highly recommended to set this to
|
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.Ar true ,
|
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however, if you wish to be able to communicate with users on other Matrix
|
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servers. This directive is required.
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.It Ic registration Ar true|false
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Whether or not to enable new user registration or not. For security and anti-spam
|
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reasons, you can set this to
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.Ar false .
|
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If you do, you can still add users via the administrator API. In an ideal world,
|
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everyone would run their own homeserver, so no public registration would ever
|
||||
be required. Unfortunately, not everyone has the means to run their own homeserver,
|
||||
especially because of the fact that public IPv4 addresses are becoming increasingly
|
||||
harder to come by. If you would like to provide a service to those that are unable
|
||||
to run their own homeserver, you can set this to
|
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.Ar true ,
|
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which will allow anyone to create an account. Telodendria should be capable of handling
|
||||
a large amount of users without difficulty or security issues. This directive is
|
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required.
|
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.It Ic log Ar logObj
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The log file configuration. Telodendria uses its own logging facility, which can
|
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output logs to standard output, a file, or the syslog. This directive is required,
|
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and it takes an object with the following directives:
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.Bl -tag -width Ds
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.It Ic output Ar stdout|file|syslog
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The lot output destination. If set to
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.Ar file ,
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Telodendria will log to
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.Pa telodendria.log
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inside the data directory.
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.It Ic level Ar error|warning|notice|message|debug
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The level of messages to log at. Each level shows all the levels above it. For
|
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example, setting the level to
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.Ar error
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will show only errors, while setting the level to
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.Ar warning
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will show warnings and errors.
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.Ar notice
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shows notices, warnings, and errors, and so on. The
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.Ar debug
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level shows all messages.
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.It Ic timestampFormat Ar format|none|default
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If you want to customize the timestamp format shown in the log, or disable it
|
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altogether, you can do so via this option. Acceptable values are
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.Ar none ,
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.Ar default ,
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or a formatter string as described by your system's
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.Xr strftime 3 .
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This option only applies if
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.Ic log
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is "stdout" or "file".
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.It Ic color Ar true|false
|
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Whether or not to enable colored output on TTYs. Note that ANSI color sequences
|
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will not be written to a log file, only a real terminal, so this option only
|
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applies if the log is being written to a standard output which is connected to
|
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a terminal.
|
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.Pp
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This option only applies if
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.Ic log
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is "stdout".
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.El
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.It Ic threads Ar count
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How many worker threads to spin up to handle requests. This should generally be
|
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less than the total CPU core count, to prevent overloading the system. The most
|
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efficient number of threads ultimately depends on the configuration of the
|
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machine running Telodendria, so you may just have to play around with different
|
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values here to see which gives the best performance.
|
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.It Ic maxConnections Ar count
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The maximum number of simultanious connections to allow to the daemon. This option
|
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prevents the daemon from allocating large amounts of memory in the event that it
|
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undergoes a denial of service attack. It typically does not need to be adjusted.
|
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.It Ic maxCache Ar bytes
|
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The maximum size of the cache. Telodendria relies heavily on caching to speed
|
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things up. The cache grows as data is loaded from the data directory. All cache
|
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is stored in memory. This option limits the size of the memory cache. If you have
|
||||
a system that has a lot of memory, you'll get better performance if this option
|
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is set higher. Otherwise, this value should be lowered on systems that have
|
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minimal memory available.
|
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.El
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.Sh FILES
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.Bl -tag -width Ds
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.It Pa config.json
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The configuration file stored on the filesystem in the data
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directory. It is not recommended to edit this directly.
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.It Pa /var/telodendria
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The recommended data directory.
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.El
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.Sh EXAMPLES
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.Pp
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A number of example configuration files are shipped with
|
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Telodendria's source code. They can be found in the
|
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.Pa contrib/
|
||||
directory if you are viewing the source code directly. Otherwise,
|
||||
if you installed Telodendria as a package, it is possible that the
|
||||
example configurations were placed in the default locations for
|
||||
such files on your operating system.
|
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.Sh SEE ALSO
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.Xr telodendria-setup 7 ,
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.Xr telodendria-admin 7
|
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.Xr telodendria 8
|
||||
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