nixfiles/hosts/hetzner-arm/containers/mail/modules/mailserver/vmail.nix

73 lines
1.9 KiB
Nix

{
config,
pkgs,
lib,
...
}: let
inherit (lib.modules) mkIf;
inherit (lib.strings) concatStringsSep;
inherit (lib.attrsets) mapAttrsToList;
mailConfig = config.services.mailserver;
inherit (mailConfig) vmail;
vmailUser = vmail.user;
vmailGroup = vmail.group;
inherit (mailConfig) sieveDirectory;
scriptForUser = name: config:
if builtins.isString config.sieveScript
then ''
cat ${builtins.toFile "default.sieve" config.sieveScript} > "${sieveDirectory}/${name}/default.sieve"
chown "${vmailUser}:${vmailGroup}" "${sieveDirectory}/${name}/default.sieve"
''
else ''
if [ -f "${sieveDirectory}/${name}/default.sieve" ]; then
rm "${sieveDirectory}/${name}/default.sieve"
fi
if [ -f "${sieveDirectory}/${name}.svbin" ]; then
rm "${sieveDirectory}/${name}/default.svbin"
fi
'';
virtualMailUsersActivationScript = pkgs.writeScript "activate-virtual-mail-users" ''
#!${pkgs.stdenv.shell}
set -euo pipefail
${concatStringsSep "\n" (mapAttrsToList (name: config: scriptForUser name config) mailConfig.accounts)}
'';
in {
config = mkIf mailConfig.enable {
users.users."${vmailUser}" = {
isSystemUser = true;
home = vmail.directory;
createHome = true;
uid = vmail.userID;
group = "${vmailGroup}";
};
users.groups."${vmailGroup}" = {
gid = vmail.groupID;
};
systemd.tmpfiles.rules =
[
"d '${sieveDirectory}' - ${vmailUser} ${vmailGroup} - -"
]
++ (map (
email: "d '${sieveDirectory}/${email}' 770 ${vmailUser} ${vmailGroup} - -"
) (builtins.attrNames mailConfig.accounts));
systemd.services.activate-virtual-mail-users = {
wantedBy = ["multi-user.target"];
before = ["dovecot2.service"];
serviceConfig.ExecStart = virtualMailUsersActivationScript;
enable = true;
};
};
}