899a37d190
* Update attribute names in code examples (* -> settings.*). * Use `nix-shell -p` rather than `nix run` because the example won't work with the current default Nix. * Update config values for `element-web`. * Fix link to `element-web` security considerations. * Make the synapse expression even smaller and use callout-lists to explain the code. * Document how to correctly deploy the shared registration secret. [1] https://spec.matrix.org/latest/client-server-api/#getwell-knownmatrixclient
276 lines
14 KiB
XML
276 lines
14 KiB
XML
<chapter xmlns="http://docbook.org/ns/docbook"
|
|
xmlns:xlink="http://www.w3.org/1999/xlink"
|
|
xmlns:xi="http://www.w3.org/2001/XInclude"
|
|
version="5.0"
|
|
xml:id="module-services-matrix">
|
|
<title>Matrix</title>
|
|
<para>
|
|
<link xlink:href="https://matrix.org/">Matrix</link> is an open standard for
|
|
interoperable, decentralised, real-time communication over IP. It can be used
|
|
to power Instant Messaging, VoIP/WebRTC signalling, Internet of Things
|
|
communication - or anywhere you need a standard HTTP API for publishing and
|
|
subscribing to data whilst tracking the conversation history.
|
|
</para>
|
|
<para>
|
|
This chapter will show you how to set up your own, self-hosted Matrix
|
|
homeserver using the Synapse reference homeserver, and how to serve your own
|
|
copy of the Element web client. See the
|
|
<link xlink:href="https://matrix.org/docs/projects/try-matrix-now.html">Try
|
|
Matrix Now!</link> overview page for links to Element Apps for Android and iOS,
|
|
desktop clients, as well as bridges to other networks and other projects
|
|
around Matrix.
|
|
</para>
|
|
<section xml:id="module-services-matrix-synapse">
|
|
<title>Synapse Homeserver</title>
|
|
|
|
<para>
|
|
<link xlink:href="https://github.com/matrix-org/synapse">Synapse</link> is
|
|
the reference homeserver implementation of Matrix from the core development
|
|
team at matrix.org. The following configuration example will set up a
|
|
synapse server for the <literal>example.org</literal> domain, served from
|
|
the host <literal>myhostname.example.org</literal>. For more information,
|
|
please refer to the
|
|
<link xlink:href="https://github.com/matrix-org/synapse#synapse-installation">
|
|
installation instructions of Synapse </link>.
|
|
<programlisting>
|
|
{ pkgs, lib, config, ... }:
|
|
let
|
|
fqdn = "${config.networking.hostName}.${config.networking.domain}";
|
|
clientConfig = {
|
|
"m.homeserver".base_url = "https://${fqdn}";
|
|
"m.identity_server" = {};
|
|
};
|
|
serverConfig."m.server" = "${config.services.matrix-synapse.settings.server_name}:443";
|
|
mkWellKnown = data: ''
|
|
add_header Content-Type application/json;
|
|
add_header Access-Control-Allow-Origin *;
|
|
return 200 '${builtins.toJSON data}';
|
|
'';
|
|
in {
|
|
<xref linkend="opt-networking.hostName" /> = "myhostname";
|
|
<xref linkend="opt-networking.domain" /> = "example.org";
|
|
<xref linkend="opt-networking.firewall.allowedTCPPorts" /> = [ 80 443 ];
|
|
|
|
<xref linkend="opt-services.postgresql.enable" /> = true;
|
|
<xref linkend="opt-services.postgresql.initialScript" /> = pkgs.writeText "synapse-init.sql" ''
|
|
CREATE ROLE "matrix-synapse" WITH LOGIN PASSWORD 'synapse';
|
|
CREATE DATABASE "matrix-synapse" WITH OWNER "matrix-synapse"
|
|
TEMPLATE template0
|
|
LC_COLLATE = "C"
|
|
LC_CTYPE = "C";
|
|
'';
|
|
|
|
services.nginx = {
|
|
<link linkend="opt-services.nginx.enable">enable</link> = true;
|
|
<link linkend="opt-services.nginx.recommendedTlsSettings">recommendedTlsSettings</link> = true;
|
|
<link linkend="opt-services.nginx.recommendedOptimisation">recommendedOptimisation</link> = true;
|
|
<link linkend="opt-services.nginx.recommendedGzipSettings">recommendedGzipSettings</link> = true;
|
|
<link linkend="opt-services.nginx.recommendedProxySettings">recommendedProxySettings</link> = true;
|
|
<link linkend="opt-services.nginx.virtualHosts">virtualHosts</link> = {
|
|
"${config.networking.domain}" = { <co xml:id='ex-matrix-synapse-dns' />
|
|
<link linkend="opt-services.nginx.virtualHosts._name_.enableACME">enableACME</link> = true;
|
|
<link linkend="opt-services.nginx.virtualHosts._name_.forceSSL">forceSSL</link> = true;
|
|
<link linkend="opt-services.nginx.virtualHosts._name_.locations._name_.extraConfig">locations."= /.well-known/matrix/server".extraConfig</link> = mkWellKnown serverConfig; <co xml:id='ex-matrix-synapse-well-known-server' />
|
|
<link linkend="opt-services.nginx.virtualHosts._name_.locations._name_.extraConfig">locations."= /.well-known/matrix/client".extraConfig</link> = mkWellKnown clientConfig; <co xml:id='ex-matrix-synapse-well-known-client' />
|
|
};
|
|
"${fqdn}" = {
|
|
<link linkend="opt-services.nginx.virtualHosts._name_.enableACME">enableACME</link> = true;
|
|
<link linkend="opt-services.nginx.virtualHosts._name_.forceSSL">forceSSL</link> = true;
|
|
<link linkend="opt-services.nginx.virtualHosts._name_.locations._name_.extraConfig">locations."/".extraConfig</link> = '' <co xml:id='ex-matrix-synapse-rev-default' />
|
|
return 404;
|
|
'';
|
|
<link linkend="opt-services.nginx.virtualHosts._name_.locations._name_.proxyPass">locations."/_matrix".proxyPass</link> = "http://[::1]:8008"; <co xml:id='ex-matrix-synapse-rev-proxy-pass' />
|
|
<link linkend="opt-services.nginx.virtualHosts._name_.locations._name_.proxyPass">locations."/_synapse/client".proxyPass</link> = "http://[::1]:8008"; <co xml:id='ex-matrix-synapse-rev-client' />
|
|
};
|
|
};
|
|
};
|
|
|
|
services.matrix-synapse = {
|
|
<link linkend="opt-services.matrix-synapse.enable">enable</link> = true;
|
|
<link linkend="opt-services.matrix-synapse.settings.server_name">settings.server_name</link> = config.networking.domain;
|
|
<link linkend="opt-services.matrix-synapse.settings.listeners">settings.listeners</link> = [
|
|
{ <link linkend="opt-services.matrix-synapse.settings.listeners._.port">port</link> = 8008;
|
|
<link linkend="opt-services.matrix-synapse.settings.listeners._.bind_addresses">bind_addresses</link> = [ "::1" ];
|
|
<link linkend="opt-services.matrix-synapse.settings.listeners._.type">type</link> = "http";
|
|
<link linkend="opt-services.matrix-synapse.settings.listeners._.tls">tls</link> = false;
|
|
<link linkend="opt-services.matrix-synapse.settings.listeners._.x_forwarded">x_forwarded</link> = true;
|
|
<link linkend="opt-services.matrix-synapse.settings.listeners._.resources">resources</link> = [ {
|
|
<link linkend="opt-services.matrix-synapse.settings.listeners._.resources._.names">names</link> = [ "client" "federation" ];
|
|
<link linkend="opt-services.matrix-synapse.settings.listeners._.resources._.compress">compress</link> = true;
|
|
} ];
|
|
}
|
|
];
|
|
};
|
|
}
|
|
</programlisting>
|
|
</para>
|
|
<calloutlist>
|
|
<callout arearefs='ex-matrix-synapse-dns'>
|
|
<para>
|
|
If the <code>A</code> and <code>AAAA</code> DNS records on
|
|
<literal>example.org</literal> do not point on the same host as the records
|
|
for <code>myhostname.example.org</code>, you can easily move the
|
|
<code>/.well-known</code> virtualHost section of the code to the host that
|
|
is serving <literal>example.org</literal>, while the rest stays on
|
|
<literal>myhostname.example.org</literal> with no other changes required.
|
|
This pattern also allows to seamlessly move the homeserver from
|
|
<literal>myhostname.example.org</literal> to
|
|
<literal>myotherhost.example.org</literal> by only changing the
|
|
<code>/.well-known</code> redirection target.
|
|
</para>
|
|
</callout>
|
|
<callout arearefs='ex-matrix-synapse-well-known-server'>
|
|
<para>
|
|
This section is not needed if the <link linkend="opt-services.matrix-synapse.settings.server_name">server_name</link>
|
|
of <package>matrix-synapse</package> is equal to the domain (i.e.
|
|
<literal>example.org</literal> from <literal>@foo:example.org</literal>)
|
|
and the federation port is 8448.
|
|
Further reference can be found in the <link xlink:href="https://matrix-org.github.io/synapse/latest/delegate.html">docs
|
|
about delegation</link>.
|
|
</para>
|
|
</callout>
|
|
<callout arearefs='ex-matrix-synapse-well-known-client'>
|
|
<para>
|
|
This is usually needed for homeserver discovery (from e.g. other Matrix clients).
|
|
Further reference can be found in the <link xlink:href="https://spec.matrix.org/latest/client-server-api/#getwell-knownmatrixclient">upstream docs</link>
|
|
</para>
|
|
</callout>
|
|
<callout arearefs='ex-matrix-synapse-rev-default'>
|
|
<para>
|
|
It's also possible to do a redirect here or something else, this vhost is not
|
|
needed for Matrix. It's recommended though to <emphasis>not put</emphasis> element
|
|
here, see also the <link linkend='ex-matrix-synapse-rev-default'>section about Element</link>.
|
|
</para>
|
|
</callout>
|
|
<callout arearefs='ex-matrix-synapse-rev-proxy-pass'>
|
|
<para>
|
|
Forward all Matrix API calls to the synapse Matrix homeserver. A trailing slash
|
|
<emphasis>must not</emphasis> be used here.
|
|
</para>
|
|
</callout>
|
|
<callout arearefs='ex-matrix-synapse-rev-client'>
|
|
<para>
|
|
Forward requests for e.g. SSO and password-resets.
|
|
</para>
|
|
</callout>
|
|
</calloutlist>
|
|
</section>
|
|
<section xml:id="module-services-matrix-register-users">
|
|
<title>Registering Matrix users</title>
|
|
<para>
|
|
If you want to run a server with public registration by anybody, you can
|
|
then enable <literal><link linkend="opt-services.matrix-synapse.settings.enable_registration">services.matrix-synapse.settings.enable_registration</link> =
|
|
true;</literal>. Otherwise, or you can generate a registration secret with
|
|
<command>pwgen -s 64 1</command> and set it with
|
|
<option><link linkend="opt-services.matrix-synapse.settings.registration_shared_secret">services.matrix-synapse.settings.registration_shared_secret</link></option>.
|
|
To create a new user or admin, run the following after you have set the secret
|
|
and have rebuilt NixOS:
|
|
<screen>
|
|
<prompt>$ </prompt>nix-shell -p matrix-synapse
|
|
<prompt>$ </prompt>register_new_matrix_user -k <replaceable>your-registration-shared-secret</replaceable> http://localhost:8008
|
|
<prompt>New user localpart: </prompt><replaceable>your-username</replaceable>
|
|
<prompt>Password:</prompt>
|
|
<prompt>Confirm password:</prompt>
|
|
<prompt>Make admin [no]:</prompt>
|
|
Success!
|
|
</screen>
|
|
In the example, this would create a user with the Matrix Identifier
|
|
<literal>@your-username:example.org</literal>.
|
|
<warning>
|
|
<para>
|
|
When using <xref linkend="opt-services.matrix-synapse.settings.registration_shared_secret" />, the secret
|
|
will end up in the world-readable store. Instead it's recommended to deploy the secret
|
|
in an additional file like this:
|
|
<itemizedlist>
|
|
<listitem>
|
|
<para>
|
|
Create a file with the following contents:
|
|
<programlisting>registration_shared_secret: your-very-secret-secret</programlisting>
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
Deploy the file with a secret-manager such as <link xlink:href="https://nixops.readthedocs.io/en/latest/overview.html#managing-keys"><option>deployment.keys</option></link>
|
|
from <citerefentry><refentrytitle>nixops</refentrytitle><manvolnum>1</manvolnum></citerefentry>
|
|
or <link xlink:href="https://github.com/Mic92/sops-nix/">sops-nix</link> to
|
|
e.g. <filename>/run/secrets/matrix-shared-secret</filename> and ensure that it's readable
|
|
by <package>matrix-synapse</package>.
|
|
</para>
|
|
</listitem>
|
|
<listitem>
|
|
<para>
|
|
Include the file like this in your configuration:
|
|
<programlisting>
|
|
{
|
|
<xref linkend="opt-services.matrix-synapse.extraConfigFiles" /> = [
|
|
"/run/secrets/matrix-shared-secret"
|
|
];
|
|
}
|
|
</programlisting>
|
|
</para>
|
|
</listitem>
|
|
</itemizedlist>
|
|
</para>
|
|
</warning>
|
|
</para>
|
|
<note>
|
|
<para>
|
|
It's also possible to user alternative authentication mechanism such as
|
|
<link xlink:href="https://github.com/matrix-org/matrix-synapse-ldap3">LDAP (via <literal>matrix-synapse-ldap3</literal>)</link>
|
|
or <link xlink:href="https://matrix-org.github.io/synapse/latest/openid.html">OpenID</link>.
|
|
</para>
|
|
</note>
|
|
</section>
|
|
<section xml:id="module-services-matrix-element-web">
|
|
<title>Element (formerly known as Riot) Web Client</title>
|
|
|
|
<para>
|
|
<link xlink:href="https://github.com/vector-im/riot-web/">Element Web</link> is
|
|
the reference web client for Matrix and developed by the core team at
|
|
matrix.org. Element was formerly known as Riot.im, see the
|
|
<link xlink:href="https://element.io/blog/welcome-to-element/">Element introductory blog post</link>
|
|
for more information. The following snippet can be optionally added to the code before
|
|
to complete the synapse installation with a web client served at
|
|
<code>https://element.myhostname.example.org</code> and
|
|
<code>https://element.example.org</code>. Alternatively, you can use the hosted
|
|
copy at <link xlink:href="https://app.element.io/">https://app.element.io/</link>,
|
|
or use other web clients or native client applications. Due to the
|
|
<literal>/.well-known</literal> urls set up done above, many clients should
|
|
fill in the required connection details automatically when you enter your
|
|
Matrix Identifier. See
|
|
<link xlink:href="https://matrix.org/docs/projects/try-matrix-now.html">Try
|
|
Matrix Now!</link> for a list of existing clients and their supported
|
|
featureset.
|
|
<programlisting>
|
|
{
|
|
services.nginx.virtualHosts."element.${fqdn}" = {
|
|
<link linkend="opt-services.nginx.virtualHosts._name_.enableACME">enableACME</link> = true;
|
|
<link linkend="opt-services.nginx.virtualHosts._name_.forceSSL">forceSSL</link> = true;
|
|
<link linkend="opt-services.nginx.virtualHosts._name_.serverAliases">serverAliases</link> = [
|
|
"element.${config.networking.domain}"
|
|
];
|
|
|
|
<link linkend="opt-services.nginx.virtualHosts._name_.root">root</link> = pkgs.element-web.override {
|
|
conf = {
|
|
default_server_config = clientConfig; # see `clientConfig` from the snippet above.
|
|
};
|
|
};
|
|
};
|
|
}
|
|
</programlisting>
|
|
</para>
|
|
|
|
<note>
|
|
<para>
|
|
The Element developers do not recommend running Element and your Matrix
|
|
homeserver on the same fully-qualified domain name for security reasons. In
|
|
the example, this means that you should not reuse the
|
|
<literal>myhostname.example.org</literal> virtualHost to also serve Element,
|
|
but instead serve it on a different subdomain, like
|
|
<literal>element.example.org</literal> in the example. See the
|
|
<link xlink:href="https://github.com/vector-im/element-web/tree/v1.10.0#important-security-notes">Element
|
|
Important Security Notes</link> for more information on this subject.
|
|
</para>
|
|
</note>
|
|
</section>
|
|
</chapter>
|