Files
gokill-demo/flake.nix
2025-12-24 02:51:31 +01:00

399 lines
16 KiB
Nix

{
inputs = {
utils.url = "github:numtide/flake-utils";
gokill.url = "github:k4lipso/gokill";
nixos-hardware = {
url = "github:NixOS/nixos-hardware/master";
inputs.nixpkgs.follows = "nixpkgs";
};
nixos-raspberrypi = {
url = "github:nvmd/nixos-raspberrypi/main";
inputs.nixpkgs.follows = "nixpkgs";
};
};
outputs = { self, nixpkgs, utils, ... } @ inputs: utils.lib.eachDefaultSystem (system:
let
pkgs = nixpkgs.legacyPackages.${system};
gokillPackage = inputs.gokill.packages.${system}.gokill;
in
{
devShell = pkgs.mkShell {
buildInputs = with pkgs; [
];
};
packages.showGokillStatus =
let
watchGokillStatus = pkgs.writeShellScriptBin "watch-gokill-status" ''
${pkgs.procps}/bin/watch -c -t "sudo ${gokillPackage}/bin/gokillctl --db=/etc/gokill status; # sudo ${gokillPackage}/bin/gokillctl --db=/etc/gokill remote status"
'';
in
pkgs.writeShellScriptBin "show-gokill-status" ''
TERMINAL="${pkgs.xterm}/bin/xterm -bg black -fg white"
APP_COMMAND="${watchGokillStatus}/bin/watch-gokill-status"
TARGET_WORKSPACE="1"
#env DISPLAY=:0 ${pkgs.sudo}/bin/sudo su -c "${pkgs.i3}/bin/i3-msg \"exec $TERMINAL -T 'Status' -e $APP_COMMAND;\"" rpi
${pkgs.i3}/bin/i3-msg "exec $TERMINAL -T 'Status' -e $APP_COMMAND; layout tabbed"
'';
packages.alarmSound = pkgs.writeShellScriptBin "alarm-sound" ''
# 533 == pin 21
# use cat /sys/kernel/debug/gpio to get assignments
exportPin()
{
if [ ! -e $BASE_GPIO_PATH/gpio$1 ]; then
echo "$1" > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio$1/direction
fi
}
setState()
{
echo $2 > /sys/class/gpio/gpio$1/value
}
# GPIO 26 - Use as VCC
exportPin "538"
setState "538" "1"
# GPIO 19 - Use as Signal
exportPin "531"
echo "Starting Alert sound!"
for i in {1..5}; do
echo "Alert Iteration $i of 5"
setState "531" "1"
sleep 1
setState "531" "0"
sleep 1
done
echo "Finished Alert sound!"
'';
packages.showAlert = pkgs.writeShellScriptBin "show-alert" ''
echo "show alert"
export DISPLAY=:0
echo "call xset"
${pkgs.xorg.xset}/bin/xset dpms force on
echo "call alert"
${self.packages.${system}.alertTest}/bin/alert
#env DISPLAY=:0 sudo su -c "${pkgs.xorg.xset}/bin/xset dpms force on" rpi
#env DISPLAY=:0 sudo su -c "${self.packages.${system}.alertTest}/bin/alert" rpi
'';
packages.alertTest = pkgs.buildGoModule {
pname = "alertTest";
version = "0.5";
vendorHash = "sha256-VNhegIXNH4rNdLaH8fALtA6iMu5ejX3gqXQRw9TWDU8=";
src = ./scripts/alert;
nativeBuildInputs = [
pkgs.pkg-config
];
buildInputs = [
pkgs.gcc
pkgs.mesa
pkgs.freeglut
pkgs.libGL
pkgs.xorg.libX11
pkgs.xorg.libXcursor
pkgs.xorg.libXrandr
pkgs.xorg.libXinerama
pkgs.xorg.xinput
pkgs.xorg.libXi
pkgs.libxxf86vm
];
PKG_CONFIG_PATH = "${pkgs.libGL}/lib/pkgconfig/";
};
}
) // {
nixosConfigurations =
let
pkgs = nixpkgs.legacyPackages."aarch64-linux";
Keys = {
Kalipso = [
"ssh-rsa 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 kalipso@c3d2.de"
"ssh-rsa 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 kalipso@desktop"
];
};
in
{
rpi = nixpkgs.lib.nixosSystem {
system = "aarch64-linux";
specialArgs.inputs = inputs;
modules = [
"${nixpkgs}/nixos/modules/installer/sd-card/sd-image-aarch64.nix"
inputs.nixos-hardware.nixosModules.raspberry-pi-3
inputs.gokill.nixosModules.gokill
({ pkgs, ... }: {
nix.nixPath = [
"nixpkgs=${pkgs.path}"
];
nix.extraOptions = ''
experimental-features = nix-command flakes
'';
nix.settings = {
trusted-users = [ "root" "@wheel" ];
};
})
( { config, ... }: {
environment.systemPackages = with pkgs; [
libraspberrypi
raspberrypi-eeprom
unclutter
self.packages.aarch64-linux.alertTest
];
sdImage = pkgs.lib.mkForce {
compressImage = false;
populateFirmwareCommands =
let
configTxt = pkgs.writeText "config.txt" ''
[pi3]
kernel=u-boot-rpi3.bin
hdmi_force_hotplug=1
[pi02]
kernel=u-boot-rpi3.bin
[pi4]
kernel=u-boot-rpi4.bin
enable_gic=1
armstub=armstub8-gic.bin
# Otherwise the resolution will be weird in most cases, compared to
# what the pi3 firmware does by default.
disable_overscan=1
# Supported in newer board revisions
arm_boost=1
[cm4]
# Enable host mode on the 2711 built-in XHCI USB controller.
# This line should be removed if the legacy DWC2 controller is required
# (e.g. for USB device mode) or if USB support is not required.
otg_mode=1
[all]
# Boot in 64-bit mode.
arm_64bit=1
# U-Boot needs this to work, regardless of whether UART is actually used or not.
# Look in arch/arm/mach-bcm283x/Kconfig in the U-Boot tree to see if this is still
# a requirement in the future.
enable_uart=1
# Prevent the firmware from smashing the framebuffer setup done by the mainline kernel
# when attempting to show low-voltage or overtemperature warnings.
# avoid_warnings=1
# PiScreen:
# For more options and information see
# http://rptl.io/configtxt
# Some settings may impact device functionality. See link above for details
# Automatically load overlays for detected DSI displays
display_auto_detect=1
# Automatically load initramfs files, if found
auto_initramfs=1
# Enable DRM VC4 V3D driver
dtoverlay=vc4-kms-v3d
max_framebuffers=2
# Don't have the firmware create an initial video= setting in cmdline.txt.
# Use the kernel's default instead.
disable_fw_kms_setup=1
# Run as fast as firmware / board allows
arm_boost=1
[cm5]
dtoverlay=dwc2,dr_mode=host
[all]
enable_uart=1
dtoverlay=piscreen,drm,rotate=0,speed=18000000s
'';
in
''
(cd ${pkgs.raspberrypifw}/share/raspberrypi/boot && cp bootcode.bin fixup*.dat start*.elf $NIX_BUILD_TOP/firmware/)
# Add the config
cp ${configTxt} firmware/config.txt
# Add pi3 specific files
cp ${pkgs.ubootRaspberryPi3_64bit}/u-boot.bin firmware/u-boot-rpi3.bin
cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2710-rpi-2-b.dtb firmware/
cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2710-rpi-3-b.dtb firmware/
cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2710-rpi-3-b-plus.dtb firmware/
cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2710-rpi-cm3.dtb firmware/
cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2710-rpi-zero-2.dtb firmware/
cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2710-rpi-zero-2-w.dtb firmware/
cp -r ${pkgs.device-tree_rpi.passthru.overlays} firmware/
# Add pi4 specific files
cp ${pkgs.ubootRaspberryPi4_64bit}/u-boot.bin firmware/u-boot-rpi4.bin
cp ${pkgs.raspberrypi-armstubs}/armstub8-gic.bin firmware/armstub8-gic.bin
cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2711-rpi-4-b.dtb firmware/
cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2711-rpi-400.dtb firmware/
cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2711-rpi-cm4.dtb firmware/
cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2711-rpi-cm4s.dtb firmware/
'';
populateRootCommands = ''
mkdir -p ./files/boot
${config.boot.loader.generic-extlinux-compatible.populateCmd} -c ${config.system.build.toplevel} -d ./files/boot
'';
};
security.sudo = {
extraRules = [
{
users = [ "rpi" ];
commands = [
{
command = "ALL";
options = [ "NOPASSWD" ];
}
{
command = "${inputs.gokill.packages.aarch64-linux.gokill}/bin/gokillctl";
options = [ "NOPASSWD" ];
}
];
}
];
};
systemd.services.gokill-status = {
enable = true;
description = "Open gokill status view at boot";
after = [ "graphical.target" ];
wantedBy = [ "gokill.service" ];
environment = {
DISPLAY = ":0";
XAUTHORITY = "/home/rpi/.Xauthority";
};
#preStart = "${pkgs.coreutils-full}/bin/sleep 30";
serviceConfig = {
ExecStart = "${self.packages.aarch64-linux.showGokillStatus}/bin/show-gokill-status";
};
};
systemd.services.gokill = {
environment = {
DISPLAY = ":0";
XAUTHORITY = "/home/rpi/.Xauthority";
};
};
services.gokill =
{
enable = true;
triggers = [
{
type = "Timeout";
name = "custom timeout";
options = {
duration = 120;
};
actions = [
{
type = "ShellScript";
options = {
path = "${inputs.self.packages.aarch64-linux.showAlert}/bin/show-alert";
};
stage = 1;
}
#{
# type = "ShellScript";
# options = {
# path = "${self.packages.aarch64-linux.alarmSound}/bin/alarm-sound";
# };
# stage = 1;
#}
];
}
];
};
services.displayManager = {
autoLogin.enable = true;
autoLogin.user = "rpi";
};
services.xserver = {
videoDrivers = [
"fbdev"
];
enable = true;
windowManager.i3 = {
enable = true;
extraPackages = with pkgs; [
dmenu #application launcher most people use
i3status # gives you the default i3 status bar
i3lock #default i3 screen locker
];
};
# Hide mouse cursor
displayManager.startx.extraCommands = ''
${pkgs.unclutter}/bin/unclutter &
'';
};
services.openssh.enable = true;
services.openssh.ports = [ 22 ];
services.openssh.settings.PasswordAuthentication = false;
users.users.root.openssh.authorizedKeys.keys = Keys.Kalipso;
users.users.rpi = {
isNormalUser = true;
extraGroups = [ "wheel" ];
openssh.authorizedKeys.keys = Keys.Kalipso;
initialPassword = "test";
};
boot.supportedFilesystems = pkgs.lib.mkForce [ "ext4" "vfat" ];
boot.kernelPackages = pkgs.linuxKernel.packages.linux_rpi3;
boot.tmp.cleanOnBoot = true;
boot.tmp.useTmpfs = true;
boot = {
growPartition = true;
kernelParams = [ "console=tty0" ];
loader.grub.enable = false;
loader.efi.canTouchEfiVariables = true;
};
hardware = {
bluetooth.enable = false;
deviceTree = {
enable = true;
filter = "bcm2710-rpi-3-b.dtb";
overlays = [
{
name = "piscreen-overlay";
dtboFile = "${config.boot.kernelPackages.kernel}/dtbs/overlays/piscreen.dtbo";
}
];
};
};
nixpkgs.hostPlatform = pkgs.lib.mkDefault "aarch64-linux";
networking.hostName = "rpi";
time.timeZone = "Europe/Berlin";
system.stateVersion = "25.11";
})
];
};
};
};
}