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m 2 led-fader: use ampel

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makefu 2017-05-11 16:40:51 +02:00
parent d2f896842e
commit d92281cf4d
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1 changed files with 21 additions and 9 deletions
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30
makefu/2configs/deployment/led-fader.nix
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@ -3,6 +3,26 @@
with import <stockholm/lib>;
let
mq = "192.168.8.11";
pkg = pkgs.stdenv.mkDerivation {
name = "ampel-master";
src = pkgs.fetchgit {
url = "http://cgit.euer.krebsco.de/ampel";
rev = "07a6791de368e16cc0864d2676fd255eba522cee";
sha256 = "1jxjapvkfglvgapy7gjbr1nra3ay418nvz70bvypcmv7wc8d4h8q";
};
buildInputs = [
(pkgs.python35.withPackages (pythonPackages: with pythonPackages; [
docopt
paho-mqtt
]))
];
installPhase = ''
install -m755 -D fade.py $out/bin/fade.py
install -m755 -D ampel.py $out/bin/ampel
install -m755 -D times.json $out/share/times.json
'';
};
in {
systemd.services.led-fader = {
description = "Send led change to message queue";
@ -10,17 +30,9 @@ in {
NIX_PATH = "/var/src";
};
wantedBy = [ "multi-user.target" ];
path = with pkgs; [
nix # nix-shell
mosquitto #mosquitto_pub
bash # nix-shell
];
serviceConfig = {
# User = "nobody"; # need a user with permissions to run nix-shell
ExecStart = pkgs.writeDash "run-fader" ''
${./fade.py} --add-empty --mode chain 3 loop --skip-unchanged 0.002 0.1 \
| mosquitto_pub -h ${mq} -p 1883 -l -t '/leds/nodemcu-switcher/set'
'';
ExecStart = "${pkg}/bin/ampel 4 ${pkg}/share/times.json";
PrivateTmp = true;
};
};