mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-25 07:00:43 +00:00
100 lines
3.4 KiB
XML
100 lines
3.4 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-security-acme">
|
|
<title>SSL/TLS Certificates with ACME</title>
|
|
<para>
|
|
NixOS supports automatic domain validation & certificate retrieval and
|
|
renewal using the ACME protocol. This is currently only implemented by and
|
|
for Let's Encrypt. The alternative ACME client <literal>simp_le</literal> is
|
|
used under the hood.
|
|
</para>
|
|
<section xml:id="module-security-acme-prerequisites">
|
|
<title>Prerequisites</title>
|
|
|
|
<para>
|
|
You need to have a running HTTP server for verification. The server must
|
|
have a webroot defined that can serve
|
|
<filename>.well-known/acme-challenge</filename>. This directory must be
|
|
writeable by the user that will run the ACME client.
|
|
</para>
|
|
|
|
<para>
|
|
For instance, this generic snippet could be used for Nginx:
|
|
<programlisting>
|
|
http {
|
|
server {
|
|
server_name _;
|
|
listen 80;
|
|
listen [::]:80;
|
|
|
|
location /.well-known/acme-challenge {
|
|
root /var/www/challenges;
|
|
}
|
|
|
|
location / {
|
|
return 301 https://$host$request_uri;
|
|
}
|
|
}
|
|
}
|
|
</programlisting>
|
|
</para>
|
|
</section>
|
|
<section xml:id="module-security-acme-configuring">
|
|
<title>Configuring</title>
|
|
|
|
<para>
|
|
To enable ACME certificate retrieval & renewal for a certificate for
|
|
<literal>foo.example.com</literal>, add the following in your
|
|
<filename>configuration.nix</filename>:
|
|
<programlisting>
|
|
<xref linkend="opt-security.acme.certs"/>."foo.example.com" = {
|
|
<link linkend="opt-security.acme.certs._name_.webroot">webroot</link> = "/var/www/challenges";
|
|
<link linkend="opt-security.acme.certs._name_.email">email</link> = "foo@example.com";
|
|
};
|
|
</programlisting>
|
|
</para>
|
|
|
|
<para>
|
|
The private key <filename>key.pem</filename> and certificate
|
|
<filename>fullchain.pem</filename> will be put into
|
|
<filename>/var/lib/acme/foo.example.com</filename>. The target directory can
|
|
be configured with the option <xref linkend="opt-security.acme.directory"/>.
|
|
</para>
|
|
|
|
<para>
|
|
Refer to <xref linkend="ch-options" /> for all available configuration
|
|
options for the <link linkend="opt-security.acme.certs">security.acme</link>
|
|
module.
|
|
</para>
|
|
</section>
|
|
<section xml:id="module-security-acme-nginx">
|
|
<title>Using ACME certificates in Nginx</title>
|
|
|
|
<para>
|
|
NixOS supports fetching ACME certificates for you by setting
|
|
<literal><link linkend="opt-services.nginx.virtualHosts._name_.enableACME">enableACME</link>
|
|
= true;</literal> in a virtualHost config. We first create self-signed
|
|
placeholder certificates in place of the real ACME certs. The placeholder
|
|
certs are overwritten when the ACME certs arrive. For
|
|
<literal>foo.example.com</literal> the config would look like.
|
|
</para>
|
|
|
|
<programlisting>
|
|
services.nginx = {
|
|
<link linkend="opt-services.nginx.enable">enable = true;</link>
|
|
<link linkend="opt-services.nginx.virtualHosts">virtualHosts</link> = {
|
|
"foo.example.com" = {
|
|
<link linkend="opt-services.nginx.virtualHosts._name_.forceSSL">forceSSL</link> = true;
|
|
<link linkend="opt-services.nginx.virtualHosts._name_.enableACME">enableACME</link> = true;
|
|
locations."/" = {
|
|
<link linkend="opt-services.nginx.virtualHosts._name_.locations._name_.root">root</link> = "/var/www";
|
|
};
|
|
};
|
|
};
|
|
}
|
|
</programlisting>
|
|
</section>
|
|
</chapter>
|