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{ config, lib, pkgs, ... }:
with lib;
let
nssModulesPath = config.system.nssModules.path;
cfg = config.services.nscd;
in
{
###### interface
options = {
services.nscd = {
enable = mkOption {
type = types.bool;
default = true;
description = "Whether to enable the Name Service Cache Daemon.";
};
config = mkOption {
type = types.lines;
default = builtins.readFile ./nscd.conf;
description = "Configuration to use for Name Service Cache Daemon.";
};
};
};
###### implementation
config = mkIf cfg.enable {
environment.etc."nscd.conf".text = cfg.config;
systemd.services.nscd =
{ description = "Name Service Cache Daemon";
wantedBy = [ "nss-lookup.target" "nss-user-lookup.target" ];
environment = { LD_LIBRARY_PATH = nssModulesPath; };
restartTriggers = [
config.environment.etc.hosts.source
config.environment.etc."nsswitch.conf".source
config.environment.etc."nscd.conf".source
];
serviceConfig =
{ ExecStart = "!@${pkgs.glibc.bin}/sbin/nscd nscd";
Type = "forking";
DynamicUser = true;
RuntimeDirectory = "nscd";
PIDFile = "/run/nscd/nscd.pid";
Restart = "always";
ExecReload =
[ "${pkgs.glibc.bin}/sbin/nscd --invalidate passwd"
"${pkgs.glibc.bin}/sbin/nscd --invalidate group"
"${pkgs.glibc.bin}/sbin/nscd --invalidate hosts"
];
};
};
};
}
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