42 lines
1.2 KiB
Nix
42 lines
1.2 KiB
Nix
{ config, lib, pkgs, ... }:
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with import <stockholm/lib>;
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let
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mq = "192.168.8.11";
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pkg = pkgs.stdenv.mkDerivation {
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name = "ampel-master";
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src = pkgs.fetchgit {
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url = "http://cgit.euer.krebsco.de/ampel";
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rev = "07a6791de368e16cc0864d2676fd255eba522cee";
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sha256 = "1jxjapvkfglvgapy7gjbr1nra3ay418nvz70bvypcmv7wc8d4h8q";
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};
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buildInputs = [
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(pkgs.python35.withPackages (pythonPackages: with pythonPackages; [
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docopt
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paho-mqtt
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]))
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];
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installPhase = ''
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install -m755 -D fade.py $out/bin/fade.py
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install -m755 -D ampel.py $out/bin/ampel
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install -m755 -D times.json $out/share/times.json
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'';
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};
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in {
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systemd.services.led-fader = {
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description = "Send led change to message queue";
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environment = {
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NIX_PATH = "/var/src";
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};
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after = [ "network-online.target" ] ++ (lib.optional config.services.mosquitto.enable "mosquitto.service");
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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# User = "nobody"; # need a user with permissions to run nix-shell
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ExecStartPre = pkgs.writeDash "sleep.sh" "sleep 2";
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ExecStart = "${pkg}/bin/ampel 4 ${pkg}/share/times.json";
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PrivateTmp = true;
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};
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};
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}
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