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# This module defines an on-demand minecraft server service which turns off the
# server when it's not being used.
{ config, lib, pkgs, modulesPath, ... }:
let
inherit (lib) mkIf mkOption mkEnableOption types;
cfg = config.my.services.duksebot;
in
{
options.my.services.duksebot = {
enable = mkEnableOption "duksebot daily reminder";
package = mkOption {
description = "What package to use";
default = pkgs.duksebot;
type = types.package;
};
};
config = mkIf cfg.enable {
# Create a user to run the server under.
users.users.duksebot = {
description = "Runs daily dukse reminder";
group = "duksebot";
isSystemUser = true;
home = "/srv/duksebot";
createHome = true;
};
users.groups.duksebot = { };
age.secrets.duksebot-env = {
file = ../../../secrets/duksebot.env.age;
owner = config.users.users.duksebot.name;
group = config.users.users.duksebot.group;
mode = "0440";
};
# Create a service which simply runs script. This will be invoked by our timer.
systemd.services.duksebot = {
serviceConfig = {
# We only want to run this once every time the timer triggers it.
Type = "oneshot";
# Run as the user we created above.
User = "duksebot";
Group = "duksebot";
WorkingDirectory = config.users.users.duksebot.home;
};
script = ''
# Load the secret environment variables.
export $(grep -v '^#' ${config.age.secrets.duksebot-env.path} | xargs)
# Kick off.
exec "${cfg.package}"/bin/duksebot
'';
};
# Create a timer to activate our oneshot service.
systemd.timers.duksebot = {
wantedBy = [ "timers.target" ];
partOf = [ "duksebot.service" ];
after = [ "network-online.target" ];
wants = [ "network-online.target" ]; # FIXME: redundant?
timerConfig = {
# OnCalendar = "*-*-* 7:00:00";
OnCalendar = "*:0/1";
Unit = "duksebot.service";
};
};
};
}
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