flexget nixos module: run the service and specify configuration

This module adds support for defining a flexget service.

Due to flexget insisting on being able to write all over where it finds
its configuration file, we use a ExecStartPre hook to copy the generated
configuration file into place under the user's home. It's fairly ugly
and I'm very open to suggestions
This commit is contained in:
Peter Hoeg 2016-03-26 22:41:30 +08:00
parent 7da9f71bf7
commit 34afbea236
2 changed files with 101 additions and 0 deletions

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@ -427,6 +427,7 @@
./services/system/nscd.nix
./services/system/uptimed.nix
./services/torrent/deluge.nix
./services/torrent/flexget.nix
./services/torrent/peerflix.nix
./services/torrent/transmission.nix
./services/ttys/agetty.nix

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@ -0,0 +1,100 @@
{ config, lib, pkgs, timezone, ... }:
with lib;
let
cfg = config.services.flexget;
pkg = pkgs.python27Packages.flexget;
ymlFile = pkgs.writeText "flexget.yml" ''
${cfg.config}
${optionalString cfg.systemScheduler "schedules: no"}
'';
configFile = "${toString cfg.homeDir}/flexget.yml";
in {
options = {
services.flexget = {
enable = mkEnableOption "Run FlexGet Daemon";
user = mkOption {
default = "deluge";
example = "some_user";
type = types.string;
description = "The user under which to run flexget.";
};
homeDir = mkOption {
default = /var/lib/deluge;
example = "/home/flexget";
type = types.path;
description = "Where files live.";
};
interval = mkOption {
default = "10m";
example = "1h";
type = types.string;
description = "When to perform a <command>flexget</command> run. See <command>man 7 systemd.time</command> for the format.";
};
systemScheduler = mkOption {
default = true;
example = "false";
type = types.bool;
description = "When true, execute the runs via the flexget-runner.timer. If false, you have to specify the settings yourself in the YML file.";
};
config = mkOption {
default = "";
type = types.lines;
description = "The YAML configuration for FlexGet.";
};
};
};
config = mkIf cfg.enable {
environment.systemPackages = [ pkgs.python27Packages.flexget ];
systemd.services = {
flexget = {
description = "FlexGet Daemon";
path = [ pkgs.pythonPackages.flexget ];
serviceConfig = {
User = cfg.user;
Environment = "TZ=${config.time.timeZone}";
ExecStartPre = "${pkgs.coreutils}/bin/install -m644 ${ymlFile} ${configFile}";
ExecStart = "${pkg}/bin/flexget -c ${configFile} daemon start";
ExecStop = "${pkg}/bin/flexget -c ${configFile} daemon stop";
ExecReload = "${pkg}/bin/flexget -c ${configFile} daemon reload";
Restart = "on-failure";
PrivateTmp = true;
WorkingDirectory = toString cfg.homeDir;
};
wantedBy = [ "multi-user.target" ];
};
flexget-runner = mkIf cfg.systemScheduler {
description = "FlexGet Runner";
after = [ "flexget.service" ];
wants = [ "flexget.service" ];
serviceConfig = {
User = cfg.user;
ExecStart = "${pkg}/bin/flexget -c ${configFile} execute";
PrivateTmp = true;
WorkingDirectory = toString cfg.homeDir;
};
};
};
systemd.timers.flexget-runner = mkIf cfg.systemScheduler {
description = "Run FlexGet every ${cfg.interval}";
wantedBy = [ "timers.target" ];
timerConfig = {
OnBootSec = "5m";
OnUnitInactiveSec = cfg.interval;
Unit = "flexget-runner.service";
};
};
};
}