2015-12-06 15:55:09 +00:00
|
|
|
{ config, lib, pkgs, ... }:
|
|
|
|
|
|
|
|
with lib;
|
|
|
|
|
|
|
|
let
|
|
|
|
|
2015-12-11 16:42:17 +00:00
|
|
|
cfg = config.security.acme;
|
2015-12-06 15:55:09 +00:00
|
|
|
|
|
|
|
certOpts = { ... }: {
|
|
|
|
options = {
|
|
|
|
webroot = mkOption {
|
2015-12-08 18:09:19 +00:00
|
|
|
type = types.str;
|
|
|
|
description = ''
|
|
|
|
Where the webroot of the HTTP vhost is located.
|
|
|
|
<filename>.well-known/acme-challenge/</filename> directory
|
2017-06-08 07:46:40 +01:00
|
|
|
will be created below the webroot if it doesn't exist.
|
2015-12-08 18:09:19 +00:00
|
|
|
<literal>http://example.org/.well-known/acme-challenge/</literal> must also
|
|
|
|
be available (notice unencrypted HTTP).
|
|
|
|
'';
|
2015-12-06 15:55:09 +00:00
|
|
|
};
|
|
|
|
|
2017-04-11 17:28:05 +01:00
|
|
|
domain = mkOption {
|
|
|
|
type = types.nullOr types.str;
|
|
|
|
default = null;
|
|
|
|
description = "Domain to fetch certificate for (defaults to the entry name)";
|
|
|
|
};
|
|
|
|
|
2015-12-06 15:55:09 +00:00
|
|
|
email = mkOption {
|
|
|
|
type = types.nullOr types.str;
|
|
|
|
default = null;
|
|
|
|
description = "Contact email address for the CA to be able to reach you.";
|
|
|
|
};
|
|
|
|
|
2015-12-08 18:09:19 +00:00
|
|
|
user = mkOption {
|
|
|
|
type = types.str;
|
|
|
|
default = "root";
|
2015-12-11 16:42:17 +00:00
|
|
|
description = "User running the ACME client.";
|
2015-12-08 18:09:19 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
group = mkOption {
|
|
|
|
type = types.str;
|
|
|
|
default = "root";
|
2015-12-11 16:42:17 +00:00
|
|
|
description = "Group running the ACME client.";
|
2015-12-08 18:09:19 +00:00
|
|
|
};
|
|
|
|
|
2016-01-06 01:59:14 +00:00
|
|
|
allowKeysForGroup = mkOption {
|
|
|
|
type = types.bool;
|
|
|
|
default = false;
|
2017-06-08 07:46:40 +01:00
|
|
|
description = ''
|
|
|
|
Give read permissions to the specified group
|
|
|
|
(<option>security.acme.group</option>) to read SSL private certificates.
|
|
|
|
'';
|
2016-01-06 01:59:14 +00:00
|
|
|
};
|
|
|
|
|
2015-12-08 18:09:19 +00:00
|
|
|
postRun = mkOption {
|
|
|
|
type = types.lines;
|
|
|
|
default = "";
|
|
|
|
example = "systemctl reload nginx.service";
|
|
|
|
description = ''
|
|
|
|
Commands to run after certificates are re-issued. Typically
|
|
|
|
the web server and other servers using certificates need to
|
|
|
|
be reloaded.
|
|
|
|
'';
|
|
|
|
};
|
|
|
|
|
2015-12-06 15:55:09 +00:00
|
|
|
plugins = mkOption {
|
|
|
|
type = types.listOf (types.enum [
|
2016-02-26 00:31:58 +00:00
|
|
|
"cert.der" "cert.pem" "chain.pem" "external.sh"
|
2016-02-09 20:37:02 +00:00
|
|
|
"fullchain.pem" "full.pem" "key.der" "key.pem" "account_key.json"
|
2015-12-06 15:55:09 +00:00
|
|
|
]);
|
2017-06-07 20:38:01 +01:00
|
|
|
default = [ "fullchain.pem" "full.pem" "key.pem" "account_key.json" ];
|
2015-12-08 18:09:19 +00:00
|
|
|
description = ''
|
|
|
|
Plugins to enable. With default settings simp_le will
|
2017-06-07 20:38:01 +01:00
|
|
|
store public certificate bundle in <filename>fullchain.pem</filename>,
|
|
|
|
private key in <filename>key.pem</filename> and those two previous
|
|
|
|
files combined in <filename>full.pem</filename> in its state directory.
|
2015-12-08 18:09:19 +00:00
|
|
|
'';
|
2015-12-06 15:55:09 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
extraDomains = mkOption {
|
2015-12-08 18:09:19 +00:00
|
|
|
type = types.attrsOf (types.nullOr types.str);
|
|
|
|
default = {};
|
2017-06-08 07:46:40 +01:00
|
|
|
example = literalExample ''
|
|
|
|
{
|
|
|
|
"example.org" = "/srv/http/nginx";
|
|
|
|
"mydomain.org" = null;
|
|
|
|
}
|
|
|
|
'';
|
2015-12-08 18:09:19 +00:00
|
|
|
description = ''
|
|
|
|
Extra domain names for which certificates are to be issued, with their
|
|
|
|
own server roots if needed.
|
|
|
|
'';
|
2015-12-06 15:55:09 +00:00
|
|
|
};
|
|
|
|
};
|
|
|
|
};
|
|
|
|
|
|
|
|
in
|
|
|
|
|
|
|
|
{
|
|
|
|
|
|
|
|
###### interface
|
|
|
|
|
|
|
|
options = {
|
2015-12-11 16:42:17 +00:00
|
|
|
security.acme = {
|
2015-12-06 15:55:09 +00:00
|
|
|
directory = mkOption {
|
2015-12-11 16:42:17 +00:00
|
|
|
default = "/var/lib/acme";
|
2015-12-06 15:55:09 +00:00
|
|
|
type = types.str;
|
|
|
|
description = ''
|
2015-12-08 18:09:19 +00:00
|
|
|
Directory where certs and other state will be stored by default.
|
2015-12-06 15:55:09 +00:00
|
|
|
'';
|
|
|
|
};
|
|
|
|
|
2015-12-12 13:21:44 +00:00
|
|
|
validMin = mkOption {
|
|
|
|
type = types.int;
|
|
|
|
default = 30 * 24 * 3600;
|
|
|
|
description = "Minimum remaining validity before renewal in seconds.";
|
|
|
|
};
|
|
|
|
|
|
|
|
renewInterval = mkOption {
|
|
|
|
type = types.str;
|
|
|
|
default = "weekly";
|
|
|
|
description = ''
|
|
|
|
Systemd calendar expression when to check for renewal. See
|
|
|
|
<citerefentry><refentrytitle>systemd.time</refentrytitle>
|
2017-03-21 07:27:56 +00:00
|
|
|
<manvolnum>7</manvolnum></citerefentry>.
|
2015-12-12 13:21:44 +00:00
|
|
|
'';
|
|
|
|
};
|
|
|
|
|
2016-06-01 11:39:46 +01:00
|
|
|
preliminarySelfsigned = mkOption {
|
|
|
|
type = types.bool;
|
|
|
|
default = true;
|
|
|
|
description = ''
|
|
|
|
Whether a preliminary self-signed certificate should be generated before
|
|
|
|
doing ACME requests. This can be useful when certificates are required in
|
|
|
|
a webserver, but ACME needs the webserver to make its requests.
|
|
|
|
|
|
|
|
With preliminary self-signed certificate the webserver can be started and
|
|
|
|
can later reload the correct ACME certificates.
|
|
|
|
'';
|
|
|
|
};
|
|
|
|
|
2017-11-02 10:10:47 +00:00
|
|
|
production = mkOption {
|
|
|
|
type = types.bool;
|
|
|
|
default = true;
|
|
|
|
description = ''
|
|
|
|
If set to true, use Let's Encrypt's production environment
|
|
|
|
instead of the staging environment. The main benefit of the
|
|
|
|
staging environment is to get much higher rate limits.
|
|
|
|
|
|
|
|
See
|
|
|
|
<literal>https://letsencrypt.org/docs/staging-environment</literal>
|
|
|
|
for more detail.
|
|
|
|
'';
|
|
|
|
};
|
|
|
|
|
2015-12-06 15:55:09 +00:00
|
|
|
certs = mkOption {
|
|
|
|
default = { };
|
2016-11-16 07:28:27 +00:00
|
|
|
type = with types; attrsOf (submodule certOpts);
|
2015-12-06 15:55:09 +00:00
|
|
|
description = ''
|
|
|
|
Attribute set of certificates to get signed and renewed.
|
|
|
|
'';
|
2017-06-08 07:46:40 +01:00
|
|
|
example = literalExample ''
|
|
|
|
{
|
|
|
|
"example.com" = {
|
|
|
|
webroot = "/var/www/challenges/";
|
|
|
|
email = "foo@example.com";
|
|
|
|
extraDomains = { "www.example.com" = null; "foo.example.com" = "/var/www/foo/"; };
|
|
|
|
};
|
|
|
|
"bar.example.com" = {
|
|
|
|
webroot = "/var/www/challenges/";
|
|
|
|
email = "bar@example.com";
|
|
|
|
};
|
|
|
|
}
|
|
|
|
'';
|
2015-12-06 15:55:09 +00:00
|
|
|
};
|
|
|
|
};
|
|
|
|
};
|
|
|
|
|
|
|
|
###### implementation
|
2015-12-12 15:06:24 +00:00
|
|
|
config = mkMerge [
|
|
|
|
(mkIf (cfg.certs != { }) {
|
|
|
|
|
2016-06-01 11:39:46 +01:00
|
|
|
systemd.services = let
|
|
|
|
services = concatLists servicesLists;
|
|
|
|
servicesLists = mapAttrsToList certToServices cfg.certs;
|
|
|
|
certToServices = cert: data:
|
|
|
|
let
|
2017-04-11 17:28:05 +01:00
|
|
|
domain = if data.domain != null then data.domain else cert;
|
2016-06-01 11:39:46 +01:00
|
|
|
cpath = "${cfg.directory}/${cert}";
|
|
|
|
rights = if data.allowKeysForGroup then "750" else "700";
|
2017-04-11 17:28:05 +01:00
|
|
|
cmdline = [ "-v" "-d" domain "--default_root" data.webroot "--valid_min" cfg.validMin ]
|
2016-06-01 11:39:46 +01:00
|
|
|
++ optionals (data.email != null) [ "--email" data.email ]
|
|
|
|
++ concatMap (p: [ "-f" p ]) data.plugins
|
2017-11-02 10:10:47 +00:00
|
|
|
++ concatLists (mapAttrsToList (name: root: [ "-d" (if root == null then name else "${name}:${root}")]) data.extraDomains)
|
|
|
|
++ (if cfg.production then []
|
|
|
|
else ["--server" "https://acme-staging.api.letsencrypt.org/directory"]);
|
2016-06-01 11:39:46 +01:00
|
|
|
acmeService = {
|
|
|
|
description = "Renew ACME Certificate for ${cert}";
|
2016-09-06 16:39:46 +01:00
|
|
|
after = [ "network.target" "network-online.target" ];
|
|
|
|
wants = [ "network-online.target" ];
|
2016-06-01 11:39:46 +01:00
|
|
|
serviceConfig = {
|
|
|
|
Type = "oneshot";
|
|
|
|
SuccessExitStatus = [ "0" "1" ];
|
|
|
|
PermissionsStartOnly = true;
|
|
|
|
User = data.user;
|
|
|
|
Group = data.group;
|
|
|
|
PrivateTmp = true;
|
|
|
|
};
|
|
|
|
path = [ pkgs.simp_le ];
|
|
|
|
preStart = ''
|
|
|
|
mkdir -p '${cfg.directory}'
|
2017-05-08 17:14:37 +01:00
|
|
|
chown 'root:root' '${cfg.directory}'
|
|
|
|
chmod 755 '${cfg.directory}'
|
2016-06-01 11:39:46 +01:00
|
|
|
if [ ! -d '${cpath}' ]; then
|
|
|
|
mkdir '${cpath}'
|
|
|
|
fi
|
|
|
|
chmod ${rights} '${cpath}'
|
|
|
|
chown -R '${data.user}:${data.group}' '${cpath}'
|
2017-05-08 17:14:37 +01:00
|
|
|
mkdir -p '${data.webroot}/.well-known/acme-challenge'
|
|
|
|
chown -R '${data.user}:${data.group}' '${data.webroot}/.well-known/acme-challenge'
|
2016-06-01 11:39:46 +01:00
|
|
|
'';
|
|
|
|
script = ''
|
|
|
|
cd '${cpath}'
|
|
|
|
set +e
|
2016-06-12 18:11:37 +01:00
|
|
|
simp_le ${escapeShellArgs cmdline}
|
2016-06-01 11:39:46 +01:00
|
|
|
EXITCODE=$?
|
|
|
|
set -e
|
|
|
|
echo "$EXITCODE" > /tmp/lastExitCode
|
|
|
|
exit "$EXITCODE"
|
|
|
|
'';
|
|
|
|
postStop = ''
|
|
|
|
if [ -e /tmp/lastExitCode ] && [ "$(cat /tmp/lastExitCode)" = "0" ]; then
|
|
|
|
echo "Executing postRun hook..."
|
|
|
|
${data.postRun}
|
|
|
|
fi
|
|
|
|
'';
|
2015-12-12 15:06:24 +00:00
|
|
|
|
2016-06-01 11:39:46 +01:00
|
|
|
before = [ "acme-certificates.target" ];
|
|
|
|
wantedBy = [ "acme-certificates.target" ];
|
|
|
|
};
|
|
|
|
selfsignedService = {
|
|
|
|
description = "Create preliminary self-signed certificate for ${cert}";
|
|
|
|
preStart = ''
|
|
|
|
if [ ! -d '${cpath}' ]
|
|
|
|
then
|
|
|
|
mkdir -p '${cpath}'
|
|
|
|
chmod ${rights} '${cpath}'
|
|
|
|
chown '${data.user}:${data.group}' '${cpath}'
|
|
|
|
fi
|
|
|
|
'';
|
|
|
|
script =
|
|
|
|
''
|
|
|
|
# Create self-signed key
|
|
|
|
workdir="/run/acme-selfsigned-${cert}"
|
|
|
|
${pkgs.openssl.bin}/bin/openssl genrsa -des3 -passout pass:x -out $workdir/server.pass.key 2048
|
|
|
|
${pkgs.openssl.bin}/bin/openssl rsa -passin pass:x -in $workdir/server.pass.key -out $workdir/server.key
|
|
|
|
${pkgs.openssl.bin}/bin/openssl req -new -key $workdir/server.key -out $workdir/server.csr \
|
|
|
|
-subj "/C=UK/ST=Warwickshire/L=Leamington/O=OrgName/OU=IT Department/CN=example.com"
|
|
|
|
${pkgs.openssl.bin}/bin/openssl x509 -req -days 1 -in $workdir/server.csr -signkey $workdir/server.key -out $workdir/server.crt
|
|
|
|
|
|
|
|
# Move key to destination
|
|
|
|
mv $workdir/server.key ${cpath}/key.pem
|
|
|
|
mv $workdir/server.crt ${cpath}/fullchain.pem
|
|
|
|
|
2017-06-07 20:38:01 +01:00
|
|
|
# Create full.pem for e.g. lighttpd (same format as "simp_le ... -f full.pem" creates)
|
|
|
|
cat "${cpath}/key.pem" "${cpath}/fullchain.pem" > "${cpath}/full.pem"
|
|
|
|
|
2016-06-01 11:39:46 +01:00
|
|
|
# Clean up working directory
|
|
|
|
rm $workdir/server.csr
|
|
|
|
rm $workdir/server.pass.key
|
|
|
|
|
|
|
|
# Give key acme permissions
|
|
|
|
chmod ${rights} '${cpath}/key.pem'
|
|
|
|
chown '${data.user}:${data.group}' '${cpath}/key.pem'
|
|
|
|
chmod ${rights} '${cpath}/fullchain.pem'
|
|
|
|
chown '${data.user}:${data.group}' '${cpath}/fullchain.pem'
|
2017-06-07 20:38:01 +01:00
|
|
|
chmod ${rights} '${cpath}/full.pem'
|
|
|
|
chown '${data.user}:${data.group}' '${cpath}/full.pem'
|
2016-06-01 11:39:46 +01:00
|
|
|
'';
|
|
|
|
serviceConfig = {
|
|
|
|
Type = "oneshot";
|
|
|
|
RuntimeDirectory = "acme-selfsigned-${cert}";
|
|
|
|
PermissionsStartOnly = true;
|
|
|
|
User = data.user;
|
|
|
|
Group = data.group;
|
|
|
|
};
|
|
|
|
unitConfig = {
|
|
|
|
# Do not create self-signed key when key already exists
|
|
|
|
ConditionPathExists = "!${cpath}/key.pem";
|
|
|
|
};
|
|
|
|
before = [
|
|
|
|
"acme-selfsigned-certificates.target"
|
|
|
|
];
|
|
|
|
wantedBy = [
|
|
|
|
"acme-selfsigned-certificates.target"
|
|
|
|
];
|
|
|
|
};
|
|
|
|
in (
|
|
|
|
[ { name = "acme-${cert}"; value = acmeService; } ]
|
|
|
|
++
|
|
|
|
(if cfg.preliminarySelfsigned
|
|
|
|
then [ { name = "acme-selfsigned-${cert}"; value = selfsignedService; } ]
|
|
|
|
else []
|
|
|
|
)
|
|
|
|
);
|
|
|
|
servicesAttr = listToAttrs services;
|
2017-06-07 20:38:01 +01:00
|
|
|
injectServiceDep = {
|
|
|
|
after = [ "acme-selfsigned-certificates.target" ];
|
|
|
|
wants = [ "acme-selfsigned-certificates.target" "acme-certificates.target" ];
|
2015-12-12 15:06:24 +00:00
|
|
|
};
|
2016-06-01 11:39:46 +01:00
|
|
|
in
|
|
|
|
servicesAttr //
|
2017-06-07 20:38:01 +01:00
|
|
|
(if config.services.nginx.enable then { nginx = injectServiceDep; } else {}) //
|
|
|
|
(if config.services.lighttpd.enable then { lighttpd = injectServiceDep; } else {});
|
2015-12-12 15:06:24 +00:00
|
|
|
|
|
|
|
systemd.timers = flip mapAttrs' cfg.certs (cert: data: nameValuePair
|
|
|
|
("acme-${cert}")
|
|
|
|
({
|
2016-04-18 10:52:31 +01:00
|
|
|
description = "Renew ACME Certificate for ${cert}";
|
2015-12-12 15:06:24 +00:00
|
|
|
wantedBy = [ "timers.target" ];
|
|
|
|
timerConfig = {
|
|
|
|
OnCalendar = cfg.renewInterval;
|
2015-12-13 13:53:59 +00:00
|
|
|
Unit = "acme-${cert}.service";
|
2016-08-10 18:37:11 +01:00
|
|
|
Persistent = "yes";
|
2017-01-25 18:11:42 +00:00
|
|
|
AccuracySec = "5m";
|
|
|
|
RandomizedDelaySec = "1h";
|
2015-12-12 15:06:24 +00:00
|
|
|
};
|
|
|
|
})
|
|
|
|
);
|
2016-06-01 11:39:46 +01:00
|
|
|
|
|
|
|
systemd.targets."acme-selfsigned-certificates" = mkIf cfg.preliminarySelfsigned {};
|
|
|
|
systemd.targets."acme-certificates" = {};
|
2015-12-12 15:06:24 +00:00
|
|
|
})
|
|
|
|
|
|
|
|
];
|
2015-12-06 15:55:09 +00:00
|
|
|
|
2016-05-09 06:53:27 +01:00
|
|
|
meta = {
|
|
|
|
maintainers = with lib.maintainers; [ abbradar fpletz globin ];
|
|
|
|
doc = ./acme.xml;
|
|
|
|
};
|
2015-12-06 15:55:09 +00:00
|
|
|
}
|