nixpkgs/modules/services/system/nscd.nix
2013-06-11 16:15:24 +02:00

71 lines
1.4 KiB
Nix

{pkgs, config, ...}:
with pkgs.lib;
let
nssModulesPath = config.system.nssModules.path;
inherit (pkgs.lib) singleton;
in
{
###### interface
options = {
services.nscd = {
enable = mkOption {
default = true;
description = "Whether to enable the Name Service Cache Daemon.";
};
};
};
###### implementation
config = mkIf config.services.nscd.enable {
users.extraUsers = singleton
{ name = "nscd";
uid = config.ids.uids.nscd;
description = "Name service cache daemon user";
};
systemd.services.nscd =
{ description = "Name Service Cache Daemon";
wantedBy = [ "nss-lookup.target" "nss-user-lookup.target" ];
environment = { LD_LIBRARY_PATH = nssModulesPath; };
preStart =
''
mkdir -m 0755 -p /run/nscd
rm -f /run/nscd/nscd.pid
mkdir -m 0755 -p /var/db/nscd
'';
restartTriggers = [ config.environment.etc.hosts.source ];
serviceConfig =
{ ExecStart = "@${pkgs.glibc}/sbin/nscd nscd -f ${./nscd.conf}";
Type = "forking";
PIDFile = "/run/nscd/nscd.pid";
Restart = "always";
ExecReload =
[ "${pkgs.glibc}/sbin/nscd --invalidate passwd"
"${pkgs.glibc}/sbin/nscd --invalidate group"
"${pkgs.glibc}/sbin/nscd --invalidate hosts"
];
};
};
};
}