4 files changed, 155 insertions, 1 deletions
diff --git a/krebs/3modules/default.nix b/krebs/3modules/default.nix
index 4d40f3856..734d6c781 100644
--- a/krebs/3modules/default.nix
+++ b/krebs/3modules/default.nix
@@ -49,6 +49,7 @@ let
       ./rtorrent.nix
       ./secret.nix
       ./setuid.nix
+      ./shadow.nix
       ./syncthing.nix
       ./tinc.nix
       ./tinc_graphs.nix
@@ -102,6 +103,7 @@ let
     { krebs = import ./krebs  { inherit config; }; }
     { krebs = import ./lass   { inherit config; }; }
     { krebs = import ./makefu { inherit config; }; }
+    { krebs = import ./mb { inherit config; }; }
     { krebs = import ./external/palo.nix { inherit config; }; }
     { krebs = import ./tv     { inherit config; }; }
     {
diff --git a/krebs/3modules/mb/default.nix b/krebs/3modules/mb/default.nix
new file mode 100644
index 000000000..c98db4b27
--- /dev/null
+++ b/krebs/3modules/mb/default.nix
@@ -0,0 +1,73 @@
+with import <stockholm/lib>;
+{ config, ... }: let
+
+  hostDefaults = hostName: host: flip recursiveUpdate host {
+    ci = true;
+    monitoring = true;
+    owner = config.krebs.users.mb;
+  };
+
+in {
+  hosts = mapAttrs hostDefaults {
+    orange = {
+      nets = {
+        retiolum = {
+          ip4.addr = "10.243.42.23";
+          aliases = [
+            "orange.r"
+            "or4ng3.r"
+            "0r4n93.r"
+          ];
+          tinc.pubkey = ''
+            -----BEGIN PUBLIC KEY-----
+            MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAr7P0CkmC5HWnTdgGFzmA
+            zQuJzHSkSjcGgSkIt0pvqU6xi8P/d4eJlmeXeGTpH62JfM1xhEMpxMVd/4NOON2u
+            IlWnfu5bB763145IJwE0HmZziWjQXWRPAZMqYdQ5f2Pvmxv1yr3uBNzr8UlV6BjD
+            FXn8sCvikXttYzts9szlz5+pkY09qfiz48+DMzRBNO6JzXYQ9kPyS+TIXlGpN4Jp
+            C1TRF38eF2DTEZ58Yx8Z99dGrXVuqlSe77fehTQGxCckTpaZ0HS3XfZNa/cas8JY
+            /0RzH2n2AndnPirISDZ7r4ZIFuKAaivqaEkM8v7llI77URVB9ZJb/IqCrBzueAbt
+            V/5ts2HpfBAUhw0RoiH8ql+IQZsuSOpRUC2gUN8460V4SQkVtDcsVTENiD+NM5Mg
+            ImBv041CsW/rSJOilT2r/rWDN8RFnz/RrAQn+L31KXr81kg1TOLxO0ybs/eMJM3r
+            RnHFZPiiKdqPlA60g0AnzKXPR2JTszHIgHHoRUW16I1WJeuAJNjg0JDQ0JM7pZ27
+            JEaCc7uR12TPiuExKaNEaxKZVY1J0hzxOzF2MFIbAMVz/3K2ycvvuLxKojqIAXxA
+            D+UtcOfJ62k2WnLXOEIZqFU0J2bvhxYUZOFS55wIn1UJF7hemD/LUFHBiWnuhwHk
+            TAEl8M851t+Zp3hZeJzgx2kCAwEAAQ==
+            -----END PUBLIC KEY-----
+          '';
+        };
+      };
+    };
+    p1nk = {
+      nets = {
+        retiolum = {
+          ip4.addr = "10.243.42.42";
+          aliases = [
+            "p1nk.r"
+          ];
+          tinc.pubkey = ''
+            -----BEGIN PUBLIC KEY-----
+            MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA5YVML71oW3iJrzZKuX48
+            AKrGitO5zNvsAHOI8BVsGfZTyxAAZgG4OaDX45kr27K39NcBU43LdDD0I1yjNvGe
+            zAoL5MIiCPD/QR1kAvLmgpMUSqOVvrk+uoGLVt6dOGvxlOiG1AAaN0gA8Q0B/jZV
+            4tZlBpZ7MX9xeK10wqVT56msN69P3EzKQn1uoVRrBxEnNvI1iqmmkgMLcrFVJFBQ
+            888Uuw9Hx5MO7ES/ATe8mt0zReUGvn91jYVVsPpmAopWnjCol271gflY0RomFXKy
+            XaIuvbeF+3otF0+MNqJfm4IsAKJjvl92pjVX0f0eBCSPCYR7D1EtgQrqflLkZKZ8
+            jBGDlgpsFWt/Omz1BYcuGZU/djM4+SNxr4YRYMi3lMix3s2PmHvm304I7eEEBlC9
+            qy1jq/sLaf8mHJrF6Htl7W5WS/Famkwv/VreI92iHrhsmIDiX7OIbXzYDCxT/PQa
+            6uCm/3jIbcHG/ZHZ12H6thkafK0Aoe009+p1n+5Y7V2oNvYe3KzZTnCN5t6z1QHZ
+            V5iypsd6lNDzlodjleTgGK8FmHGRPRdq1wb3eOLE8mWZj7ygDT50FwaC8FzAcHgC
+            bLN/zlHvCbYmk9IJhktO3B6wtMrZl60+XCpb5rTulM94RirifFYsnTIDJApI11yb
+            3AYi5dQXHjab/lvj6917xa0CAwEAAQ==
+            -----END PUBLIC KEY-----
+          '';
+        };
+      };
+    };
+  };
+  users = {
+    mb = {
+      mail = "mb0@codemonkey.cc";
+      pubkey = "ssh-rsa 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 mb0@codemonkey.cc";
+    };
+  };
+}
diff --git a/krebs/3modules/permown.nix b/krebs/3modules/permown.nix
index 63adb2236..fe293810c 100644
--- a/krebs/3modules/permown.nix
+++ b/krebs/3modules/permown.nix
@@ -88,7 +88,7 @@ with import <stockholm/lib>;
               fi
             done < "$paths"
           '';
-          PrivateTemp = true;
+          PrivateTmp = true;
           Restart = "always";
           RestartSec = 10;
           UMask = plan.umask;
diff --git a/krebs/3modules/shadow.nix b/krebs/3modules/shadow.nix
new file mode 100644
index 000000000..cff66492d
--- /dev/null
+++ b/krebs/3modules/shadow.nix
@@ -0,0 +1,79 @@
+with import <stockholm/lib>;
+{ config, pkgs, ... }: let
+
+  cfg = config.krebs.shadow;
+
+  mergeShadowsJq = pkgs.writeJq "merge-shadows.jq" ''
+    def fields_3_to_9: ["1", "", "", "", "", "", ""];
+
+    def read_value:
+      split(":") |
+      if length == 9 then
+        if .[2:] == fields_3_to_9 then
+          .
+        else
+          error("unrecognized field contents")
+        end
+      elif length == 2 then
+        if .[1] | test("^\\$6\\$") then
+          . + fields_3_to_9
+        else
+          error("unrecognized hashed password")
+        end
+      else
+        error("unexpected field count: expected 9 or 2, got \(length)")
+      end;
+
+    def write_value:
+      join(":");
+
+    split("\n") |
+    map(select(length > 0) | read_value) |
+
+    reverse |
+    unique_by(.[0]) |
+    map(write_value) |
+    sort |
+
+    join("\n")
+  '';
+
+in {
+
+  options.krebs.shadow = {
+    enable = mkEnableOption "krebs.shadow" // {
+      default = cfg.overridesFile != null;
+    };
+    overridesFile = mkOption {
+      apply = x: if typeOf x == "path" then toString x else x;
+      default = null;
+      description = ''
+        Path to a file containing additional shadow entries, used for adding
+        encrypted passwords  which should not be placed into the Nix store.
+
+        The overrides file may contain either regular shadow(5) entries like:
+
+        <code>&lt;login-name&gt;:&lt;hashed-password&gt;:1::::::</code>
+
+        Or shortened entries only containing login name and password like:
+
+        <code>&lt;login-name&gt;:&lt;hashed-password&gt</code>
+      '';
+      type = types.nullOr (types.either types.path types.absolute-pathname);
+    };
+  };
+
+  config = let
+  in mkIf cfg.enable {
+    system.activationScripts.users-tv = stringAfter [ "users" ] /* sh */ ''
+      (
+        set -efu
+        umask 77
+        ${pkgs.jq}/bin/jq -Rrs -f ${mergeShadowsJq} \
+            /etc/shadow ${cfg.overridesFile} > /etc/shadow~
+        ${pkgs.coreutils}/bin/mv /etc/shadow /etc/shadow-
+        ${pkgs.coreutils}/bin/mv /etc/shadow~ /etc/shadow
+      )
+    '';
+  };
+}