nixpkgs/nixos/modules/services/system/saslauthd.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.saslauthd;
in
{
###### interface
options = {
services.saslauthd = {
enable = mkEnableOption "saslauthd, the Cyrus SASL authentication daemon";
package = mkOption {
default = pkgs.cyrus_sasl.bin;
defaultText = "pkgs.cyrus_sasl.bin";
type = types.package;
description = "Cyrus SASL package to use.";
};
mechanism = mkOption {
type = types.str;
default = "pam";
description = "Auth mechanism to use";
};
config = mkOption {
type = types.lines;
default = "";
description = "Configuration to use for Cyrus SASL authentication daemon.";
};
};
};
###### implementation
config = mkIf cfg.enable {
systemd.services.saslauthd = {
description = "Cyrus SASL authentication daemon";
wantedBy = [ "multi-user.target" ];
serviceConfig = {
ExecStart = "@${cfg.package}/sbin/saslauthd saslauthd -a ${cfg.mechanism} -O ${pkgs.writeText "saslauthd.conf" cfg.config}";
Type = "forking";
PIDFile = "/run/saslauthd/saslauthd.pid";
Restart = "always";
};
};
};
}