From 479ce8c4c5747d6da60d2d907d662e7a5708bfd7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Felix=20=28xq=29=20Quei=C3=9Fner?= <git@mq32.de>
Date: Fri, 3 Jan 2020 00:15:01 +0100
Subject: shack: init shackDNS

---
 krebs/1systems/wolf/config.nix    |  4 +++
 krebs/2configs/shack/shackDNS.nix | 63 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 67 insertions(+)
 create mode 100644 krebs/2configs/shack/shackDNS.nix

diff --git a/krebs/1systems/wolf/config.nix b/krebs/1systems/wolf/config.nix
index 059e09ac1..7a096cecf 100644
--- a/krebs/1systems/wolf/config.nix
+++ b/krebs/1systems/wolf/config.nix
@@ -69,6 +69,10 @@ in
     # grafana.shack
     <stockholm/krebs/2configs/shack/grafana.nix>
 
+    # shackdns.shack
+    # replacement for leases.shack and shackles.shack
+    <stockholm/krebs/2configs/shack/shackDNS.nix>
+
   ];
   # use your own binary cache, fallback use cache.nixos.org (which is used by
   # apt-cacher-ng in first place)
diff --git a/krebs/2configs/shack/shackDNS.nix b/krebs/2configs/shack/shackDNS.nix
new file mode 100644
index 000000000..807bb7e65
--- /dev/null
+++ b/krebs/2configs/shack/shackDNS.nix
@@ -0,0 +1,63 @@
+{ config, lib, pkgs, ... }:
+
+let
+  pkg = 
+    pkgs.fetchgit {
+      url = "https://git.shackspace.de/rz/shackdns";
+      rev = "e55cc906c734b398683f9607b93f1ad6435d8575";
+      sha256 = "1hkwhf3hqb4fz06b1ckh7sl0zcyi4da5fgdlksian8lxyd19n8sq";
+	  };
+  home = "/var/lib/shackDNS";
+  port = "8083";
+  config_file = pkgs.writeText "config" ''
+  # Points to a bind configuration file
+  dns-db = ${home}/db.shack
+
+  # Points to a shackles configuration file
+  # See `shackles.json` in repo
+  shackles-db = ${home}/shackles.json
+
+  # Points to a REST service with the DHCP leases
+  leases-api = http://dhcp.shack/dhcpd.leases
+
+  # Wrap this binding with https proxy or similar
+  binding = http://localhost:${port}/
+  '';
+in {
+  # receive response from light.shack / standby.shack
+  networking.firewall.allowedTCPPorts = [ ];
+
+  users.users.shackDNS = {
+    inherit home;
+    createHome = true;
+  };
+  services.nginx.virtualHosts."leases.shack" = {
+    locations."/" = {
+      proxyPass = "http://localhost:${port}/";
+    };
+  };
+  services.nginx.virtualHosts."shackdns.shack" = {
+    locations."/" = {
+      proxyPass = "http://localhost:${port}/";
+    };
+  };
+  services.nginx.virtualHosts."shackles.shack" = {
+    locations."/" = {
+      proxyPass = "http://localhost:${port}/";
+    };
+  };
+
+  systemd.services.shackDNS = {
+    description = "shackDNS provides an overview over DHCP and DNS as well as a replacement for shackles";
+    wantedBy = [ "multi-user.target" ];
+    environment.PORT = port;
+    serviceConfig = {
+      User = "shackDNS";
+      WorkingDirectory = home;
+      ExecStart = "${pkgs.mono6}/bin/mono ${pkg}/shackDNS.exe ${config_file}";
+      PrivateTmp = true;
+      Restart = "always";
+      RestartSec = "15";
+    };
+  };
+}
-- 
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