91 lines
2.0 KiB
Nix
91 lines
2.0 KiB
Nix
{ config, lib, pkgs, ... }:
|
|
|
|
with lib;
|
|
|
|
let
|
|
|
|
nssModulesPath = config.system.nssModules.path;
|
|
cfg = config.services.nscd;
|
|
|
|
inherit (lib) singleton;
|
|
|
|
cfgFile = pkgs.writeText "nscd.conf" cfg.config;
|
|
|
|
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 {
|
|
|
|
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 config.environment.etc."nsswitch.conf".source ];
|
|
|
|
serviceConfig =
|
|
{ ExecStart = "@${pkgs.glibc}/sbin/nscd nscd -f ${cfgFile}";
|
|
Type = "forking";
|
|
PIDFile = "/run/nscd/nscd.pid";
|
|
Restart = "always";
|
|
ExecReload =
|
|
[ "${pkgs.glibc}/sbin/nscd --invalidate passwd"
|
|
"${pkgs.glibc}/sbin/nscd --invalidate group"
|
|
"${pkgs.glibc}/sbin/nscd --invalidate hosts"
|
|
];
|
|
};
|
|
|
|
# Urgggggh... Nscd forks before opening its socket and writing
|
|
# its pid. So wait until it's ready.
|
|
postStart =
|
|
''
|
|
while ! ${pkgs.glibc}/sbin/nscd -g -f ${cfgFile} > /dev/null; do
|
|
sleep 0.2
|
|
done
|
|
'';
|
|
};
|
|
|
|
};
|
|
}
|