2 files changed, 101 insertions, 0 deletions
diff --git a/krebs/3modules/default.nix b/krebs/3modules/default.nix
index 430194405..edfbde9ba 100644
--- a/krebs/3modules/default.nix
+++ b/krebs/3modules/default.nix
@@ -14,6 +14,7 @@ let
       ./iptables.nix
       ./nginx.nix
       ./Reaktor.nix
+      ./realwallpaper.nix
       ./retiolum.nix
       ./urlwatch.nix
     ];
diff --git a/krebs/3modules/realwallpaper.nix b/krebs/3modules/realwallpaper.nix
new file mode 100644
index 000000000..d5c1aeabd
--- /dev/null
+++ b/krebs/3modules/realwallpaper.nix
@@ -0,0 +1,100 @@
+arg@{ config, lib, pkgs, ... }:
+
+let
+  inherit (lib)
+    mkEnableOption
+    mkOption
+    types
+    mkIf
+  ;
+
+  cfg = config.krebs.realwallpaper;
+
+  out = {
+    options.krebs.realwallpaper = api;
+    config = mkIf cfg.enable imp;
+  };
+
+  api = {
+    enable = mkEnableOption "realwallpaper";
+
+    workingDir = mkOption {
+      type = types.str;
+      default = "/var/realwallpaper/";
+    };
+
+    nightmap = mkOption {
+      type = types.str;
+      default = "http://eoimages.gsfc.nasa.gov/images/imagerecords/55000/55167/earth_lights_lrg.jpg";
+    };
+
+    daymap = mkOption {
+      type = types.str;
+      default = "http://www.nnvl.noaa.gov/images/globaldata/SnowIceCover_Daily.png";
+    };
+
+    cloudmap = mkOption {
+      type = types.str;
+      default = "http://xplanetclouds.com/free/local/clouds_2048.jpg";
+    };
+
+    outFile = mkOption {
+      type = types.str;
+      default = "/tmp/wallpaper.png";
+    };
+
+    timerConfig = mkOption {
+      type = types.unspecified;
+      default = {
+        OnCalendar = "*:0/15";
+      };
+    };
+
+  };
+
+  imp = {
+    systemd.timers.realwallpaper = {
+      description = "real wallpaper generator timer";
+
+      timerConfig = cfg.timerConfig;
+    };
+
+    systemd.services.realwallpaper = {
+      description = "real wallpaper generator";
+      wantedBy = [ "multi-user.target" ];
+      after = [ "network.target" ];
+
+      path = with pkgs; [
+        xplanet
+        imagemagick
+        curl
+        file
+      ];
+
+      environment = {
+        working_dir = cfg.workingDir;
+        nightmap_url = cfg.nightmap;
+        daymap_url = cfg.daymap;
+        cloudmap_url = cfg.cloudmap;
+        out_file = cfg.outFile;
+      };
+
+      restartIfChanged = true;
+
+      serviceConfig = {
+        Type = "simple";
+        ExecStart = "${pkgs.realwallpaper}/realwallpaper.sh";
+        User = "realwallpaper";
+      };
+    };
+
+    users.extraUsers.realwallpaper = {
+      uid = 2009435407; #genid realwallpaper
+      home = cfg.workingDir;
+      createHome = true;
+    };
+  };
+
+in
+out
+