nixpkgs/nixos/modules/services/networking/charybdis.nix
Martin Weinelt 1f726635ee nixos/charybdis: implement reload functionality
IRC daemons are highly stateful daemons, so allow config changes without
kicking all server and client connections.

Basically a port of 60c62214f5.
2021-11-30 23:33:34 +01:00

115 lines
2.5 KiB
Nix

{ config, lib, pkgs, ... }:
let
inherit (lib) mkEnableOption mkIf mkOption singleton types;
inherit (pkgs) coreutils charybdis;
cfg = config.services.charybdis;
configFile = pkgs.writeText "charybdis.conf" ''
${cfg.config}
'';
in
{
###### interface
options = {
services.charybdis = {
enable = mkEnableOption "Charybdis IRC daemon";
config = mkOption {
type = types.str;
description = ''
Charybdis IRC daemon configuration file.
'';
};
statedir = mkOption {
type = types.path;
default = "/var/lib/charybdis";
description = ''
Location of the state directory of charybdis.
'';
};
user = mkOption {
type = types.str;
default = "ircd";
description = ''
Charybdis IRC daemon user.
'';
};
group = mkOption {
type = types.str;
default = "ircd";
description = ''
Charybdis IRC daemon group.
'';
};
motd = mkOption {
type = types.nullOr types.lines;
default = null;
description = ''
Charybdis MOTD text.
Charybdis will read its MOTD from /etc/charybdis/ircd.motd .
If set, the value of this option will be written to this path.
'';
};
};
};
###### implementation
config = mkIf cfg.enable (lib.mkMerge [
{
users.users.${cfg.user} = {
description = "Charybdis IRC daemon user";
uid = config.ids.uids.ircd;
group = cfg.group;
};
users.groups.${cfg.group} = {
gid = config.ids.gids.ircd;
};
systemd.tmpfiles.rules = [
"d ${cfg.statedir} - ${cfg.user} ${cfg.group} - -"
];
environment.etc."charybdis/ircd.conf".source = configFile;
systemd.services.charybdis = {
description = "Charybdis IRC daemon";
wantedBy = [ "multi-user.target" ];
reloadIfChanged = true;
restartTriggers = [
configFile
];
environment = {
BANDB_DBPATH = "${cfg.statedir}/ban.db";
};
serviceConfig = {
ExecStart = "${charybdis}/bin/charybdis -foreground -logfile /dev/stdout -configfile /etc/charybdis/ircd.conf";
ExecReload = "${coreutils}/bin/kill -HUP $MAINPID";
Group = cfg.group;
User = cfg.user;
};
};
}
(mkIf (cfg.motd != null) {
environment.etc."charybdis/ircd.motd".text = cfg.motd;
})
]);
}