radiobert: init

flake.nix

@@ -211,8 +211,10 @@
           system = "aarch64-linux";
         };
 
-        pipebert = nixosSystem' {
-          modules = [ ./hosts/pipebert ];
+        radiobert = nixosSystem' {
+          modules = [
+            ./hosts/radiobert
+          ];
           system = "aarch64-linux";
         };
 

host-registry.nix

@@ -117,6 +117,8 @@ rec {
       ip4 = "172.20.73.45";
       ip6 = "2a00:8180:2c00:282:1024:5fff:febd:9be7";
     };
+
+    radiobert.ip4 = "172.22.99.117";
   };
 
   hqGlobal = builtins.attrNames hosts;

hosts/radiobert/default.nix

@@ -0,0 +1,119 @@
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  boot.initrd.availableKernelModules = [ "usbhid" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" = {
+    device = "/dev/disk/by-label/NIXOS_SD";
+    fsType = "ext4";
+  };
+
+  fileSystems."/boot/firmware" = {
+    device = "/dev/disk/by-label/FIRMWARE";
+    fsType = "vfat";
+  };
+
+  swapDevices = [ ];
+
+  hardware.enableRedistributableFirmware = true;
+  #networking.wireless.enable = true;
+  powerManagement.cpuFreqGovernor = lib.mkDefault "performance";
+
+
+  boot = {
+    loader = {
+      grub.enable = false;
+      generic-extlinux-compatible.enable = false;
+      raspberryPi = {
+        enable = true;
+        version = 3;
+        uboot.enable = true;
+        firmwareConfig = ''
+          gpu_mem=192
+          dtparam=audio=on
+        '';
+      };
+    };
+    kernelPackages = pkgs.linuxPackages_latest;
+
+    tmpOnTmpfs = true;
+  };
+
+  c3d2 = {
+    isInHq = true;
+    mapHqHosts = true;
+    hq.interface = "eth0";
+  };
+
+  nix = {
+    buildCores = 4;
+    maxJobs = 2;
+  };
+
+  networking = {
+    hostName = "radiobert"; # Define your hostname.
+
+    # The global useDHCP flag is deprecated, therefore explicitly set to false here.
+    # Per-interface useDHCP will be mandatory in the future, so this generated config
+    # replicates the default behaviour.
+    useDHCP = false;
+    interfaces.eth0.useDHCP = true;
+    interfaces.wlan0.useDHCP = true;
+    # TODO
+    firewall.enable = false;
+  };
+
+  services.openwebrx.enable = true;
+
+  # List packages installed in system profile. To search, run:
+  # $ nix search wget
+  environment.systemPackages = with pkgs; [
+    git
+    libraspberrypi
+    vim
+    wget
+  ];
+
+  programs.tmux.enable = true;
+
+  # Do not log to flash:
+  services.journald.extraConfig = ''
+    Storage=volatile
+  '';
+
+  # Enable the OpenSSH daemon.
+  services.openssh = {
+    enable = true;
+    permitRootLogin = "yes";
+  };
+  security.sudo = {
+    enable = true;
+    wheelNeedsPassword = false;
+  };
+
+  users.users.k-ot = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" "audio" ];
+  };
+
+  security.acme = {
+    acceptTerms = true;
+    email = "mail@c3d2.de";
+  };
+
+  # Allow access to USB
+  services.udev.extraRules = ''
+    SUBSYSTEM=="usb", MODE:="0666"
+  '';
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "21.05"; # Did you read the comment?
+}

lib/default.nix

@@ -30,6 +30,7 @@ in {
   imports = [
     ./users
     ./stats.nix
+    ./openwebrx.nix
   ];
 
   options.c3d2 = with lib;

lib/openwebrx.nix

@@ -0,0 +1,45 @@
+{ self, system, config, lib, pkgs, ... }:
+let
+  cfg = config.services.openwebrx;
+in
+{
+  options.services.openwebrx = {
+    enable = lib.mkEnableOption "Enable OpenWebRX Web interface for Software-Defined Radios";
+
+    package = lib.mkOption {
+      default = pkgs.openwebrx;
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    users = {
+      users.openwebrx = {
+        isSystemUser = true;
+        group = "openwebrx";
+        home = "/var/lib/openwebrx";
+      };
+      groups.openwebrx = {};
+    };
+
+    systemd.services.openwebrx = {
+      wantedBy = [ "multi-user.target" ];
+      path = [
+        cfg.package
+        cfg.package.csdr
+        pkgs.alsaUtils
+        pkgs.netcat
+      ];
+      serviceConfig = {
+        ExecStart = "openwebrx";
+        Restart = "always";
+        User = "openwebrx";
+        Groups = "openwebrx";
+        WorkingDirectory = "/var/lib/openwebrx";
+      };
+    };
+
+    systemd.tmpfiles.rules = [
+      "d /var/lib/openwebrx 0755 openwebrx openwebrx -"
+    ];
+  };
+}

overlay/openwebrx.nix

@@ -15,6 +15,10 @@ let
       rev = version;
       sha256 = "1vip5a3xgskcwba3xi66zfr986xrsch9na7my818cm8vw345y57b";
     };
+    patchPhase = ''
+      substituteInPlace configure.ac \
+        --replace -Wformat=0 ""
+    '';
 
     nativeBuildInputs = [
       autoreconfHook
@@ -106,4 +110,8 @@ buildPythonApplication rec {
     owrx_connector
     direwolf
   ];
+
+  passthru = {
+    inherit csdr js8py owrx_connector direwolf;
+  };
 }