misc_nixos-mailserver/mail-server/systemd.nix
Antoine Eiche 93330c5453 Move indexDir option to the mailserver scope
This option has been initially in the mailserver.fullTextSearch
scope. However, this option modifies the location of all index files
of dovecot and not only those used by the full text search feature. It
is then more relevant to have this option in the mailserver top level
scope.

Moreover, the default option has been changed to null in order to keep
existing index files where they are: changing the index location means
recreating all index files. The fts documentation however recommend to
change this default location when enabling the fts feature.
2021-04-07 22:22:38 +02:00

83 lines
2.8 KiB
Nix

# nixos-mailserver: a simple mail server
# Copyright (C) 2016-2018 Robin Raymond
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>
{ config, pkgs, lib, ... }:
let
cfg = config.mailserver;
certificatesDeps =
if cfg.certificateScheme == 1 then
[]
else if cfg.certificateScheme == 2 then
[ "mailserver-selfsigned-certificate.service" ]
else
[ "acme-finished-${cfg.fqdn}.target" ];
in
{
config = with cfg; lib.mkIf enable {
# Create self signed certificate
systemd.services.mailserver-selfsigned-certificate = lib.mkIf (cfg.certificateScheme == 2) {
after = [ "local-fs.target" ];
script = ''
# Create certificates if they do not exist yet
dir="${cfg.certificateDirectory}"
fqdn="${cfg.fqdn}"
[[ $fqdn == /* ]] && fqdn=$(< "$fqdn")
key="$dir/key-${cfg.fqdn}.pem";
cert="$dir/cert-${cfg.fqdn}.pem";
if [[ ! -f $key || ! -f $cert ]]; then
mkdir -p "${cfg.certificateDirectory}"
(umask 077; "${pkgs.openssl}/bin/openssl" genrsa -out "$key" 2048) &&
"${pkgs.openssl}/bin/openssl" req -new -key "$key" -x509 -subj "/CN=$fqdn" \
-days 3650 -out "$cert"
fi
'';
serviceConfig = {
Type = "oneshot";
PrivateTmp = true;
};
};
# Create maildir folder before dovecot startup
systemd.services.dovecot2 = {
wants = certificatesDeps;
after = certificatesDeps;
preStart = let
directories = lib.strings.escapeShellArgs (
[ mailDirectory ]
++ lib.optional (cfg.indexDir != null) cfg.indexDir
);
in ''
# Create mail directory and set permissions. See
# <http://wiki2.dovecot.org/SharedMailboxes/Permissions>.
mkdir -p ${directories}
chgrp "${vmailGroupName}" ${directories}
chmod 02770 ${directories}
'';
};
# Postfix requires dovecot lmtp socket, dovecot auth socket and certificate to work
systemd.services.postfix = {
wants = certificatesDeps;
after = [ "dovecot2.service" ]
++ lib.optional cfg.dkimSigning "opendkim.service"
++ certificatesDeps;
requires = [ "dovecot2.service" ]
++ lib.optional cfg.dkimSigning "opendkim.service";
};
};
}