Merge remote-tracking branch 'prism/master'

28 files changed, 703 insertions, 139 deletions

diff --git a/krebs/1systems/hotdog/config.nix b/krebs/1systems/hotdog/config.nix
index 4fdb53ae7..73b5377bd 100644
--- a/krebs/1systems/hotdog/config.nix
+++ b/krebs/1systems/hotdog/config.nix
@@ -13,7 +13,6 @@
     <stockholm/krebs/2configs/gitlab-runner-shackspace.nix>
     <stockholm/krebs/2configs/binary-cache/nixos.nix>
     <stockholm/krebs/2configs/ircd.nix>
-    <stockholm/krebs/2configs/reaktor-krebs.nix>
     <stockholm/krebs/2configs/reaktor-retiolum.nix>
   ];
 
diff --git a/krebs/1systems/wolf/config.nix b/krebs/1systems/wolf/config.nix
index 21ae20ea0..0b21c0b6c 100644
--- a/krebs/1systems/wolf/config.nix
+++ b/krebs/1systems/wolf/config.nix
@@ -26,9 +26,13 @@ in
     <stockholm/krebs/2configs/shack/share.nix>
     {
       systemd.services.telegraf.path = [ pkgs.net_snmp ]; # for snmptranslate
-      #systemd.services.telegraf.environment = {
-      #  "MIBDIRS" : ""; # extra mibs like ADSL
-      #};
+      systemd.services.telegraf.environment = {
+        MIBDIRS = pkgs.fetchgit {
+          url = "http://git.shackspace.de/makefu/modem-mibs.git";
+          sha256 =
+          "1rhrpaascvj5p3dj29hrw79gm39rp0aa787x95m3r2jrcq83ln1k";
+        }; # extra mibs like ADSL
+      };
       services.telegraf = {
         enable = true;
         extraConfig = {
diff --git a/krebs/2configs/ircd.nix b/krebs/2configs/ircd.nix
index 38f58952e..b534f9ad4 100644
--- a/krebs/2configs/ircd.nix
+++ b/krebs/2configs/ircd.nix
@@ -7,6 +7,9 @@
 
   services.charybdis = {
     enable = true;
+    motd = ''
+      hello
+    '';
     config = ''
       serverinfo {
         name = "${config.krebs.build.host.name}.irc.retiolum";
diff --git a/krebs/3modules/backup.nix b/krebs/3modules/backup.nix
index 6f015d66b..c0b218c15 100644
--- a/krebs/3modules/backup.nix
+++ b/krebs/3modules/backup.nix
@@ -83,6 +83,7 @@ let
           rsync
           utillinux
         ];
+        restartIfChanged = false;
         serviceConfig = rec {
           ExecStart = start plan;
           SyslogIdentifier = ExecStart.name;
diff --git a/krebs/3modules/ci.nix b/krebs/3modules/ci.nix
index adbc1ebe1..b56f5c543 100644
--- a/krebs/3modules/ci.nix
+++ b/krebs/3modules/ci.nix
@@ -104,7 +104,7 @@ in
                     "dummy_secrets": "true",
                   },
                   command=[
-                    "nix-shell", "--run", " ".join(["test",
+                    "nix-shell", "-I", "stockholm=.", "--run", " ".join(["test",
                       "--user={}".format(user),
                       "--system={}".format(host),
                       "--force-populate",
diff --git a/krebs/3modules/default.nix b/krebs/3modules/default.nix
index c89f3229d..caeef2885 100644
--- a/krebs/3modules/default.nix
+++ b/krebs/3modules/default.nix
@@ -44,6 +44,7 @@ let
       ./tinc_graphs.nix
       ./urlwatch.nix
       ./repo-sync.nix
+      ./zones.nix
     ];
     options.krebs = api;
     config = lib.mkIf cfg.enable imp;
@@ -60,6 +61,7 @@ let
 
     hosts = mkOption {
       type = with types; attrsOf host;
+      default = {};
     };
 
     users = mkOption {
@@ -171,17 +173,6 @@ let
             '';
           };
 
-      # Implements environment.etc."zones/<zone-name>"
-      environment.etc = let
-        stripEmptyLines = s: (concatStringsSep "\n"
-          (remove "\n" (remove "" (splitString "\n" s)))) + "\n";
-        all-zones = foldAttrs (sum: current: sum + "\n" +current ) ""
-          ([cfg.zone-head-config] ++ combined-hosts);
-        combined-hosts = (mapAttrsToList (name: value: value.extraZones)  cfg.hosts );
-      in lib.mapAttrs' (name: value: nameValuePair
-        ("zones/" + name)
-        { text=(stripEmptyLines value); }) all-zones;
-
       krebs.exim-smarthost.internet-aliases = let
         format = from: to: {
           inherit from;
@@ -234,21 +225,26 @@ let
             };
           })
         //
-        # GitHub's IPv4 address range is 192.30.252.0/22
-        # Refs https://help.github.com/articles/github-s-ip-addresses/
-        # 192.30.252.0/22 = 192.30.252.0-192.30.255.255 (1024 addresses)
-        # Because line length is limited by OPENSSH_LINE_MAX (= 8192),
-        # we split each /24 into its own entry.
-        listToAttrs (map
-          (c: {
-            name = "github${toString c}";
-            value = {
-              hostNames = ["github.com"] ++
-                map (d: "192.30.${toString c}.${toString d}") (range 0 255);
-              publicKey = "ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg7+wC604ydGXA8VJiS5ap43JXiUFFAaQ==";
-            };
-          })
-          (range 252 255))
+        {
+          github = {
+            hostNames = [
+              "github.com"
+              # List generated with
+              # curl -sS https://api.github.com/meta | jq -r .git[] | cidr2glob
+              "192.30.253.*"
+              "192.30.254.*"
+              "192.30.255.*"
+              "185.199.108.*"
+              "185.199.109.*"
+              "185.199.110.*"
+              "185.199.111.*"
+              "18.195.85.27"
+              "18.194.104.89"
+              "35.159.8.160"
+            ];
+            publicKey = "ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg7+wC604ydGXA8VJiS5ap43JXiUFFAaQ==";
+          };
+        }
         //
         mapAttrs
           (name: host: {
diff --git a/krebs/3modules/exim.nix b/krebs/3modules/exim.nix
index 0044f5b32..cfcbbc438 100644
--- a/krebs/3modules/exim.nix
+++ b/krebs/3modules/exim.nix
@@ -42,6 +42,10 @@ in {
         exim_group = ${cfg.group.name}
         exim_path = /run/wrappers/bin/exim
         spool_directory = ${cfg.user.home}
+
+        # https://lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html
+        chunking_advertise_hosts =
+
         ${cfg.config}
       '';
       systemPackages = [ pkgs.exim ];
diff --git a/krebs/3modules/fetchWallpaper.nix b/krebs/3modules/fetchWallpaper.nix
index 8d4933cb5..f67188122 100644
--- a/krebs/3modules/fetchWallpaper.nix
+++ b/krebs/3modules/fetchWallpaper.nix
@@ -27,7 +27,7 @@ let
     };
     display = mkOption {
       type = types.str;
-      default = ":0";
+      default = ":${toString config.services.xserver.display}";
     };
     unitConfig = mkOption {
       type = types.attrsOf types.str;
diff --git a/krebs/3modules/lass/default.nix b/krebs/3modules/lass/default.nix
index 3e03e71cb..ecf549df9 100644
--- a/krebs/3modules/lass/default.nix
+++ b/krebs/3modules/lass/default.nix
@@ -132,38 +132,6 @@ with import <stockholm/lib>;
       ssh.privkey.path = <secrets/ssh.id_ed25519>;
       ssh.pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAsANFdMi825qWQXQbWLYuNZ6/fARt3lnh1KStQHQQMD";
     };
-    archprism = rec {
-      cores = 4;
-      nets = rec {
-        retiolum = {
-          via = internet;
-          ip4.addr = "10.243.0.104";
-          ip6.addr = "42::fa17";
-          aliases = [
-            "archprism.r"
-          ];
-          tinc.pubkey = ''
-            -----BEGIN RSA PUBLIC KEY-----
-            MIIBCgKCAQEAvzhoBsxUaEwm7ctiw3xvLFP2RoVaiHnF+Sm4J8E4DOerPToXxlyl
-            kxvMPaRnhtiO6MK0Vv2+VswKIeRkMm5YuD5MG7wni4vUKcRx9cCgKji/s0vGqLhl
-            JKK9i23q7epvQ32Is/e3P+fQ5KM50EO+TWACNaroCNoyJvZ/G8BWXw6WnIOsuX0I
-            AoPW2ol8/sdZxeK4hCe/aQz6y0AEvigpvPkHx+TE5fkBeIeqhiKTIWpEqjU4wXx5
-            jP2izYuaIsHAihU8mm03xRxT4+4IHYt6ddrhNeBuJBsATLkDgULdQyOoEzmXCm2j
-            anGRBZoYVazxn7d8mKBdE09ZNc1ijULZgwIDAQAB
-            -----END RSA PUBLIC KEY-----
-          '';
-        };
-        internet = {
-          ip4.addr = "213.239.205.240";
-          aliases = [
-            "archprism.i"
-          ];
-          ssh.port = 45621;
-        };
-      };
-      ssh.privkey.path = <secrets/ssh.id_rsa>;
-      ssh.pubkey = "ssh-rsa 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";
-    };
     domsen-nas = {
       ci = false;
       external = true;
@@ -374,6 +342,47 @@ with import <stockholm/lib>;
       ssh.privkey.path = <secrets/ssh.id_ed25519>;
       ssh.pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIqpx9jJnn4QMGO8BOrGOLRN1rgpIkR14sQb8S+otWEL";
     };
+    littleT = {
+      cores = 2;
+      nets = {
+        retiolum = {
+          ip4.addr = "10.243.133.77";
+          ip6.addr = "42:0:0:0:0:0:717:7137";
+          aliases = [
+            "littleT.r"
+          ];
+          tinc.pubkey = ''
+            -----BEGIN RSA PUBLIC KEY-----
+            MIIECgKCBAEA2nPi6ui8nJhEL3lFzDoPelFbEwFWqPnQa0uVxLAhf2WnmT/vximF
+            /m2ZWpKDZyKx17GXQwm8n0NgyvcemvoCVGqSHIsbxvLB6aBF6ZLkeKyx1mZioEDY
+            1MWR+yr42dFn+6uVTxJhLPmOxgX0D3pWe31UycoAMSWf4eAhmFIEFUvQCAW43arO
+            ni1TFSsaHOCxOaLVd/r7tSO0aT72WbOat84zWccwBZXvpqt/V6/o1MGB28JwZ92G
+            sBMjsCsoiciSg9aAzMCdjOYdM+RSwHEHI9xMineJgZFAbQqwTvK9axyvleJvgaWR
+            M9906r/17tlqJ/hZ0IwA6X+OT4w/JNGruy/5phxHvZmDgvXmYD9hf2a6JmjOMPp/
+            Zn6zYCDYgSYugwJ7GI39GG7f+3Xpmre87O6g6WSaMWCfdOaAeYnj+glP5+YvTLpT
+            +cdN9HweV27wShRozJAqTGZbD0Nfs+EXd0J/q6kP43lwv6wyZdmXCShPF2NzBlEY
+            xdtWKhRYKC1cs0Z2nK+XGEyznNzp1f8NC5qvTguj4kDMhoOd6WXwk460HF49Tf/c
+            aGQTGzgEVMAI7phTJubEmxdBooedvPFamS5wpHTmOt9dZ3qbpCgThaMblVvUu/lm
+            7pkPgc60Y2RAk/Rvyy5A8AaxBXPRBNwVkM5TY/5TW+S1zY09600ZCC2GE27qGT9v
+            k4GHabO42n3wTHk+APodzKDBbEazhOp5Oclg4nNKqgg+IrmheB91oEqBXlfyDj8B
+            idVoUvbH9WPwBqdh7hoqzrHDur5wCFBphrkjEe98o5iFFFi2C8W04H7iqe+nFqvJ
+            y/vzKk5kbfpjov71EEje+hNUCLTWF7sjgT4Z2z8LuqjpIq+d2i5dASfTqj4VBs6D
+            SeiHyyAfCHG/03I9E5eizCCd98Tr30yhu3IKsdFFXsVwxHVFenq2Y1ca7uypCk+i
+            mDC5q5WQFEK/8SSO25i1teWBawfNVVVI/A1b676VJyafS9ebJs8TmXYRbE6rcBzH
+            PssdHNwbtEwhbGdQhgQ2pqQg1SIZM3zvjcpgzL9QP29tulubJ05keaw/4p/Yg/mB
+            ivF8EAIefXYYVxYkRQsHox7UQpSCzjOtj7gvc0KdJxshSLuryM0LxP+gk+x6JPX5
+            Ht8x+oE7iL0cqBsIenc/e0XdTZ+4zrBY5hWbGH8a8VJqEYs54WRJhzQf1jzNaCbS
+            8328MpRF5lXujv61aveg0i4pvczznlSV7wXmmwNAdhvSUTh34tCpRqabpCJdlRBt
+            NvVuij6guPKt4XV1TxXNsPCfib1vYjvwX8gUE4UhL69VmM8OBaC3XdroMfNvz9YW
+            5ObxDGIEiP53Jp8hiWId0AI/XF5Ct3Gh2wIDAQAB
+            -----END RSA PUBLIC KEY-----
+          '';
+        };
+      };
+      secure = true;
+      ssh.privkey.path = <secrets/ssh.id_ed25519>;
+      ssh.pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJzb9BPFClubs6wSOi/ivqPFVPlowXwAxBS0jHaB29hX";
+    };
     iso = {
       ci = false;
       cores = 1;
@@ -440,8 +449,6 @@ with import <stockholm/lib>;
         retiolum = rec {
           via = internet;
           addrs = [
-            # edinburgh university
-            "129.215.0.0/16"
             ip4.addr
             ip6.addr
           ];
@@ -463,6 +470,10 @@ with import <stockholm/lib>;
             lyK301Jb42wGEsVWxu3Eo/PLtp8OdD+Wdh6o/ELcc0k/YCUGFMujUM8CAwEAAQ==
             -----END RSA PUBLIC KEY-----
           '';
+          tinc.subnets = [
+            # edinburgh university
+            "129.215.0.0/16"
+          ];
         };
       };
     };
@@ -524,6 +535,86 @@ with import <stockholm/lib>;
         };
       };
     };
+    reagenzglas = {
+      ci = false;
+      external = true;
+      nets = {
+        retiolum = {
+          ip4.addr = "10.243.27.27";
+          ip6.addr = "42::27";
+          aliases = [
+            "reagenzglas.r"
+          ];
+          tinc.pubkey = ''
+            -----BEGIN RSA PUBLIC KEY-----
+            MIIECgKCBAEA4Tbq6aiMhPz55Of/WDEmESGmScRJedQSJoyRuDEDabEktdbP/m7P
+            bwpLp0lGYphx42+lutFcYOGoH/Lglfj39yhDcrpkYfTnzcGOWutXGuZ+iR5vmGj0
+            utJRf/4+a4sB5NboBVZ9Ke/RTjDNSov00C2hFCYTXz89Gd2ap1nDPQpnejOS+9aO
+            2W6P/WIKhRH7TfW6M7mUCrjVxWXZgdfSCQYxAXU/+1uAGmJ9qlGlQUIGUGv9Znv5
+            hurqwAHzSgEkKc2iUumosz6a8W9Oo3TAEC+jMEO2l/+GJ/8VysG1wtLWDX03GU3u
+            mBAtrJppEw4QNPTeFg6XSFIwV8Z0fWZ4lGsPJLbAkLUMxtKVWKbdrdpnmiQpLfBW
+            8BRbT1pjwEdw0hefA6NwCO3/Y5piEaUEz/gYz9xHFMDXUj9stHtaF0HaqonWyb06
+            aX3EEqRBxVsj6/Sgd33b77xqY4WBoOlbhfWj+EAD1Ova26lHELpAg0Z4AncpyOzw
+            pJcX81U8GgQp899YAc3EAldFfiu094CvM2NKd110K90VlTpos+sqFfNE87vpprMu
+            3d1NsYzf+FUM/aXASlqTNL+i8qBDAlODkLdj4+VZ2BjkSH+p2BLZouizSzu4X3I/
+            lfy554Dbb/98zlwmX9JrWzBRs2GxxFdIDZ1jK+Ci5qM7oTfujBwiE4jZA6wlK8u5
+            +IenSBdaJb0J8nS0Bziz/BLkuBCrl/YFelpZlY0pw6WYlraKbf/nsOpumOYh6zdz
+            9jiIPElGvso9FhwigX7xWCiYMK3ryAqm8CL0cTscQW3Yy2JKm1tNIQtAacwnNVli
+            PqdnPJSo942I+Fl6ZPjZ19ivJIqC+2TjGEY2Et8DkiL6YZfy4bM1zhoWMlXBIil0
+            ynnKR/h/CC67cq94JCbtRWKiYXIYtfHPQkS7S1Lk6aSYbIch/wROyh7XJ7EGE7nn
+            GAVMqI/P/qbW3rwEJGXzI4eJAHa2hwpP2Slimf6uUD/6L2bAnduhYoTsnNSjJmNE
+            hCC+MHohzk7+isZl0jwIEcMpsohMAwoa5BEhbuYJWeUesT/4PeddLIGYubTZAXp2
+            ZdYRepSNUEhSZV0H99MhlqeooDJxnWpsiba5Gb0s6p4gTReGy0jMtWnxI2P5RUFX
+            vEGt77v4MGrWYTzAL/ZRmESsOj7TXqpSK5YcMC2nr8PcV66LuMjOkRrGoVOV3fBe
+            G/9pNVb68SRwfPoGa5nGe6C7GPcgko9rgGLLcU1r/4L2bqFhdIQdSfaUX2Hscm44
+            5GdN2UvuwwVxOyU1uPqJcBNnr2yt3x3kw5+zDQ00z/pFntTXWm19m6BUtbkdwN2x
+            Bn1P3P/mRTEaHxQr9RGg8Zjnix/Q6G7I5QIDAQAB
+            -----END RSA PUBLIC KEY-----
+          '';
+        };
+      };
+    };
+    xerxes = {
+      cores = 2;
+      nets = rec {
+        retiolum = {
+          ip4.addr = "10.243.1.3";
+          ip6.addr = "42::1:3";
+          aliases = [
+            "xerxes.r"
+          ];
+          tinc.pubkey = ''
+            -----BEGIN RSA PUBLIC KEY-----
+            MIIECgKCBAEArqEaK+m7WZe/9/Vbc+qx2TjkkRJ9lDgDMr1dvj98xb8/EveUME6U
+            MZyAqNjLuKq3CKzJLo02ZmdFs4CT1Hj28p5IC0wLUWn53hrqdy8cCJDvIiKIv+Jk
+            gItsxJyMnRtsdDbB6IFJ08D5ReGdAFJT5lqpN0DZuNC6UQRxzUK5fwKYVVzVX2+W
+            /EZzEPe5XbE69V/Op2XJ2G6byg9KjOzNJyJxyjwVco7OXn1OBNp94NXoFrUO7kxb
+            mTNnh3D+iB4c3qv8woLhmb+Uh/9MbXS14QrSf85ou4kfUjb5gdhjIlzz+jfA/6XO
+            X4t86uv8L5IzrhSGb0TmhrIh5HhUmSKT4RdHJom0LB7EASMR2ZY9AqIG11XmXuhj
+            +2b5INBZSj8Cotv5aoRXiPSaOd7bw7lklYe4ZxAU+avXot9K3/4XVLmi6Wa6Okim
+            hz+MEYjW5gXY+YSUWXOR4o24jTmDjQJpdL83eKwLVAtbrE7TcVszHX6zfMoQZ5M9
+            3EtOkDMxhC+WfkL+DLQAURhgcPTZoaj0cAlvpb0TELZESwTBI09jh/IBMXHBZwI4
+            H1gOD5YENpf0yUbLjVu4p82Qly10y58XFnUmYay0EnEgdPOOVViovGEqTiAHMmm5
+            JixtwJDz7a6Prb+owIg27/eE1/E6hpfXpU8U83qDYGkIJazLnufy32MTFE4T9fI4
+            hS8icFcNlsobZp+1pB3YK4GV5BnvMwOIVXVlP8yMCRTDRWZ4oYmAZ5apD7OXyNwe
+            SUP2mCNNlQCqyjRsxj5S1lZQRy1sLQztU5Sff4xYNK+5aPgJACmvSi3uaJAxBloo
+            4xCCYzxhaBlvwVISJXZTq76VSPybeQ+pmSZFMleNnWOstvevLFeOoH2Is0Ioi1Fe
+            vnu5r0D0VYsb746wyRooiEuOAjBmni8X/je6Vwr1gb/WZfZ23EwYpGyakJdxLNv3
+            Li+LD9vUfOR80WL608sUU45tAx1RAy6QcH/YDtdClbOdK53+cQVTsYnCvDW8uGlO
+            scQWgk+od3qvo6yCPO7pRlEd3nedcPSGh/KjBHao6eP+bsVERp733Vb9qrEVwmxv
+            jlZ1m12V63wHVu9uMAGi9MhK+2Q/l7uLTj03OYpi4NYKL2Bu01VXfoxuauuZLdIJ
+            Z3ZV+qUcjzZI0PBlGxubq6CqVFoSB7nhHUbcdPQ66WUnwoKq0cKmE7VOlJQvJ07u
+            /Wsl8BIsxODVt0rTzEAx0hTd5mJCX7sCawRt+NF+1DZizl9ouebNMkNlsEAg4Ps0
+            bQerZLcOmpYjGa5+lWDwJIMXVIcxwTmQR86stlP/KQm0vdOvH2ZUWTXcYvCYlHkQ
+            sgVnnA2wt+7UpZnEBHy04ry+jYaSsPdYgwIDAQAB
+            -----END RSA PUBLIC KEY-----
+          '';
+        };
+      };
+      secure = true;
+      ssh.privkey.path = <secrets/ssh.id_ed25519>;
+      ssh.pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE5HyLyaIvVH0qHIQ4ciKhDiElhSqsK+uXcA6lTvL+5n";
+    };
   };
   users = {
     lass = {
@@ -552,13 +643,13 @@ with import <stockholm/lib>;
       mail = "lass@icarus.r";
       pubkey = builtins.readFile ./ssh/icarus.rsa;
     };
+    lass-xerxes = {
+      mail = "lass@xerxes.r";
+      pubkey = builtins.readFile ./ssh/xerxes.rsa;
+    };
     fritz = {
       pubkey = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCz34435NSXgj72YAOL4cIlRq/4yInKEyL9no+gymURoW5x1nkYpP0EK331e7UyQQSOdWOogRo6d7YHcFqNlYWv5xlYcHucIhgJwC4Zda1liVA+v7tSOJz2BjmFvOT3/qlcPS69f3zdLHZooz2C33uHX1FgGRXlxiA8dpqGnSr8o76QLZjuQkuDqr8reOspjO/RHCo2Moq0Xm5q9OgN1WLAZzupqt9A5lx567mRzYsRAr23pUxVN8T/tSCgDlPe4ktEjYX9CXLKfMyh9WuBVi+AuH4GFEWBT+AMpsHeF45w+w956x56mz0F5nYOQNK87gFr+Jr+mh2AF1ot2CxzrfTb fritz@scriptkiddiT540";
     };
-    archprism-repo-sync = {
-      pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINR9oL/OPHjjKjQ+IyRqWpgrXdZrKKAwFKIte8gYml6C";
-      mail = "lass@prism.r";
-    };
     prism-repo-sync = {
       pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKhpCKTnSq6VDJPB+0NiHu2ZxSKEIxHN6uPAPnbXYNCe";
       mail = "lass@prism.r";
@@ -576,5 +667,8 @@ with import <stockholm/lib>;
       pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKbBp2dH2X3dcU1zh+xW3ZsdYROKpJd3n13ssOP092qE";
       mail = "joerg@higgsboson.tk";
     };
+    jeschli = {
+      pubkey = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDMPuFzd6p3zZETIjoV5mRxCTQgeZk9s/P374mEDbj58wDTT0uGWu2JRf7cL1QRTvd5238tYl0eSHXH65+oaFB/mIvmiRnuw6qQODOMHlSbJN5/J2hEw/3v5gveiP1xNLfKlFhj6mmMRF7Etvzns/kLGLCSjj1UTlfo4iHmtinPmU+iQ8J4foS4cZj4oZesF8gndkc2EFMfL6en7EuU8GK6U9GtwKNL9N4UoUZXu8Nf00pkn/jrpmsDdI4zdVVAxWeu/Lo4li43EVixLcfwQiwzf6S9FvYIv30xPdy92GJSJwxm/QkYuc48VZWUoE+qThf3IEPETtX+MRZrM8RTtY01";
+    };
   };
 }
diff --git a/krebs/3modules/lass/ssh/xerxes.rsa b/krebs/3modules/lass/ssh/xerxes.rsa
new file mode 100644
index 000000000..2b5da7b25
--- /dev/null
+++ b/krebs/3modules/lass/ssh/xerxes.rsa
@@ -0,0 +1 @@
+ssh-rsa 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 lass@xerxes
diff --git a/krebs/3modules/makefu/default.nix b/krebs/3modules/makefu/default.nix
index 401cba97a..9f1842b88 100644
--- a/krebs/3modules/makefu/default.nix
+++ b/krebs/3modules/makefu/default.nix
@@ -5,7 +5,7 @@ with import <stockholm/lib>;
 {
   hosts = mapAttrs (_: setAttr "owner" config.krebs.users.makefu) {
     cake = rec {
-      cores = 1;
+      cores = 4;
       ci = false;
       nets = {
         retiolum = {
@@ -107,7 +107,7 @@ with import <stockholm/lib>;
       ci = true;
       cores = 1;
       ssh.privkey.path = <secrets/ssh_host_ed25519_key>;
-      ssh.pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIrkK1mWfPvfZ9ALC1irGLuzOtMefaGAmGY1VD4dj7K1 latte";
+      # ssh.pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIrkK1mWfPvfZ9ALC1irGLuzOtMefaGAmGY1VD4dj7K1 latte";
       nets = {
         internet = {
           ip4.addr = "185.215.224.160";
@@ -500,7 +500,7 @@ with import <stockholm/lib>;
         };
         retiolum = {
           ip4.addr = "10.243.214.15";
-          ip6.addr = "42:5a02:2c30:c1b1:3f2e:7c19:2496:a732";
+          # ip6.addr = "42:5a02:2c30:c1b1:3f2e:7c19:2496:a732";
           aliases = [
             "wbob.r"
           ];
@@ -540,13 +540,14 @@ with import <stockholm/lib>;
           wiki.euer         IN A      ${nets.internet.ip4.addr}
           graph             IN A      ${nets.internet.ip4.addr}
           ghook             IN A      ${nets.internet.ip4.addr}
+          dockerhub         IN A      ${nets.internet.ip4.addr}
           io                IN NS     gum.krebsco.de.
         '';
       };
       nets = rec {
         internet = {
-          ip4.addr = "188.68.40.19";
-          ip6.addr = "2a03:4000:17:2df::1";
+          ip4.addr = "185.194.143.140";
+          ip6.addr = "2a03:4000:1c:43f::1";
           aliases = [
             "gum.i"
           ];
diff --git a/krebs/3modules/per-user.nix b/krebs/3modules/per-user.nix
index 1b8d092bb..a7a07a8e6 100644
--- a/krebs/3modules/per-user.nix
+++ b/krebs/3modules/per-user.nix
@@ -1,38 +1,34 @@
-{ config, lib, pkgs, ... }:
-
 with import <stockholm/lib>;
-
-let
+{ config, pkgs, ... }: let
   cfg = config.krebs.per-user;
-
-  out = {
-    options.krebs.per-user = api;
-    config = imp;
-  };
-
-  api = mkOption {
-    type = with types; attrsOf (submodule {
+in {
+  options.krebs.per-user = mkOption {
+    type = types.attrsOf (types.submodule {
       options = {
         packages = mkOption {
-          type = listOf path;
+          type = types.listOf types.path;
           default = [];
         };
       };
     });
     default = {};
   };
-
-  imp = {
+  config = {
     environment = {
-      etc = flip mapAttrs' cfg (name: { packages, ... }: {
-        name = "per-user/${name}";
-        value.source = pkgs.symlinkJoin {
-          name = "per-user.${name}";
-          paths = packages;
-        };
-      });
+      etc =
+        mapAttrs'
+          (name: per-user: {
+            name = "per-user/${name}";
+            value.source = pkgs.buildEnv {
+              name = "per-user.${name}";
+              paths = per-user.packages;
+              pathsToLink = [
+                "/bin"
+              ];
+            };
+          })
+          (filterAttrs (_: per-user: per-user.packages != []) cfg);
       profiles = ["/etc/per-user/$LOGNAME"];
     };
   };
-
-in out
+}
diff --git a/krebs/3modules/repo-sync.nix b/krebs/3modules/repo-sync.nix
index 0211b31ba..b2e3aa7c5 100644
--- a/krebs/3modules/repo-sync.nix
+++ b/krebs/3modules/repo-sync.nix
@@ -173,6 +173,7 @@ let
           REPONAME = "${name}.git";
         };
 
+        restartIfChanged = false;
         serviceConfig = {
           Type = "simple";
           PermissionsStartOnly = true;
diff --git a/krebs/3modules/rtorrent.nix b/krebs/3modules/rtorrent.nix
index 472accef9..b7ef824b5 100644
--- a/krebs/3modules/rtorrent.nix
+++ b/krebs/3modules/rtorrent.nix
@@ -38,12 +38,12 @@ let
     ${optionalString (cfg.enableXMLRPC ) ''
       # prepare socket and set permissions. rtorrent user is part of group nginx
       # TODO: configure a shared torrent group
-      execute_nothrow = rm,${cfg.xmlrpc-socket}
+      execute.nothrow = rm,${cfg.xmlrpc-socket}
       scgi_local = ${cfg.xmlrpc-socket}
       schedule = scgi_permission,0,0,"execute.nothrow=chmod,\"ug+w,o=\",${cfg.xmlrpc-socket}"
     ''}
 
-    system.file_allocate.set = ${if cfg.preAllocate then "yes" else "no"}
+    system.file.allocate.set = ${if cfg.preAllocate then "yes" else "no"}
 
     # Prepare systemd logging
     log.open_file = "rtorrent-systemd", ${systemd-logfile}
diff --git a/krebs/3modules/tv/default.nix b/krebs/3modules/tv/default.nix
index e80becfa7..98145274c 100644
--- a/krebs/3modules/tv/default.nix
+++ b/krebs/3modules/tv/default.nix
@@ -254,6 +254,36 @@ with import <stockholm/lib>;
       ssh.privkey.path = <secrets/ssh.id_ed25519>;
       ssh.pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIcJvu8JDVzObLUtlAQg9qVugthKSfitwCljuJ5liyHa";
     };
+    querel = {
+      ci = true;
+      cores = 2;
+      nets = {
+        retiolum = {
+          ip4.addr = "10.243.22.22";
+          ip6.addr = "42::2222";
+          aliases = [
+            "querel.r"
+          ];
+          tinc.pubkey = ''
+            -----BEGIN RSA PUBLIC KEY-----
+            MIICCgKCAgEArv9eB8acpUhJwRaLY9kGeM7DEPvInVvoduEbec10p4Y2PFx2MjSz
+            2OhyxFRkONC4EMV9oVTKD+NRtpbRGZGLYD8ZPB622SvccgB0XnL6ZZfie1feSgrn
+            bPyVnX8EnEgtx9IQckHyaxWgtyrluJnY2CbLkCYgD+50KFT12rdHyAa3+QoYU65x
+            ACQo28i9xIpsl6dm7iWBb+ecHc7fST35OqWywtVxSpHPe1nvwaYm1p3rqqtkCGVh
+            iXE5ruAscri7Dskc5dGR1p7LquhBaebuylH6sfRKA6kre05+/IkXi+JLeAmAtJ+W
+            xezYlecEvxhguql9ZmSYAYkR4KknZb56KtvCnm29o0evvEpsaYcbtgq1D0JhoGyk
+            4DixS5e+5dg470icVKxPfz1AzejxrTUTtMlI28qjAIx1FcmCBGM+T6yHs/MhNGbf
+            aqUmN+FwtsJ2QWFYqu9zjxxyAfrAw+gqHm0LnsKK1ttwF/2fYCTRLowY+ItB3axs
+            UVq7DQxyunyYalKGX2RSJ5BHczREHrfgX43HCSlcAuMuow9jHLOjzul0A49rSZ9E
+            vOPqbjrki0KEEQj0HN3Ax4UVqZ6mPWaTQzuup+bPQ/2Sjkx6COzMSAPmKo4l6DkA
+            J++ZonpnOCUkwCeCU6qJgMuHeXn0uh117Ypj/3J9eKYMO/RTSs3x8l0CAwEAAQ==
+            -----END RSA PUBLIC KEY-----
+          '';
+        };
+      };
+      ssh.privkey.path = <secrets/ssh.id_ed25519>;
+      ssh.pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPFM2GdL9yOjSBmYBE07ClywNOADc/zxqXwZuWd7Mael root@querel.r";
+    };
     xu = {
       binary-cache = {
         pubkey = "xu-1:pYRENvaxZqGeImwLA9qHmRwHV4jfKaYx4u1VcZ31x0s=";
@@ -339,6 +369,8 @@ with import <stockholm/lib>;
     dv = {
       mail = "dv@alnus.r";
     };
+    itak = {
+    };
     mv-ni = {
       mail = "mv@ni.r";
       pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGer9e2+Lew7vnisgBbsFNECEIkpNJgEaqQqgb9inWkQ mv@vod";
diff --git a/krebs/3modules/zones.nix b/krebs/3modules/zones.nix
new file mode 100644
index 000000000..eb1351866
--- /dev/null
+++ b/krebs/3modules/zones.nix
@@ -0,0 +1,22 @@
+with import <stockholm/lib>;
+{ config, ... }: {
+
+  config = {
+    # Implements environment.etc."zones/<zone-name>"
+    environment.etc = let
+      stripEmptyLines = s: (concatStringsSep "\n"
+        (remove "\n" (remove "" (splitString "\n" s)))) + "\n";
+      all-zones = foldAttrs (sum: current: sum + "\n" +current ) ""
+        ([config.krebs.zone-head-config] ++ combined-hosts);
+      combined-hosts =
+        mapAttrsToList (name: getAttr "extraZones") config.krebs.hosts;
+    in
+      mapAttrs'
+        (name: value: {
+          name = "zones/${name}";
+          value.text = stripEmptyLines value;
+        })
+        all-zones;
+  };
+
+}
diff --git a/krebs/5pkgs/haskell/nix-diff/default.nix b/krebs/5pkgs/haskell/nix-diff/default.nix
new file mode 100644
index 000000000..df0315048
--- /dev/null
+++ b/krebs/5pkgs/haskell/nix-diff/default.nix
@@ -0,0 +1,25 @@
+{ mkDerivation, attoparsec, base, containers, Diff, fetchgit, mtl
+, nix-derivation, optparse-generic, stdenv, system-filepath, text
+, unix, vector
+}:
+mkDerivation {
+  pname = "nix-diff";
+  version = "1.0.0-krebs1";
+  src = fetchgit {
+    url = "https://github.com/Gabriel439/nix-diff";
+    sha256 = "1k00nx8pannqmpzadkwfrs6bf79yk22ynhd033z5rsyw0m8fcz9k";
+    rev = "e32ffa2c7f38b47a71325a042c1d887fb46cdf7d";
+  };
+  patches = [
+    ./nixos-system.patch
+  ];
+  isLibrary = false;
+  isExecutable = true;
+  executableHaskellDepends = [
+    attoparsec base containers Diff mtl nix-derivation optparse-generic
+    system-filepath text unix vector
+  ];
+  homepage = "https://github.co