Merge remote-tracking branch 'cd/master'

40 files changed, 334 insertions, 347 deletions

diff --git a/krebs/3modules/Reaktor.nix b/krebs/3modules/Reaktor.nix
index 92400139c..d58661a28 100644
--- a/krebs/3modules/Reaktor.nix
+++ b/krebs/3modules/Reaktor.nix
@@ -1,6 +1,6 @@
 { config, lib, pkgs, ... }:
 
-with lib;
+with config.krebs.lib;
 let
 
   ReaktorConfig = pkgs.writeText "config.py" ''
@@ -16,7 +16,7 @@ let
 
   out = {
     options.krebs.Reaktor = api;
-    config = mkIf cfg.enable imp;
+    config = lib.mkIf cfg.enable imp;
   };
 
   api = {
diff --git a/krebs/3modules/apt-cacher-ng.nix b/krebs/3modules/apt-cacher-ng.nix
index 371d39b6f..46b405842 100644
--- a/krebs/3modules/apt-cacher-ng.nix
+++ b/krebs/3modules/apt-cacher-ng.nix
@@ -1,6 +1,6 @@
 { config, pkgs, lib, ... }:
 
-with lib;
+with config.krebs.lib;
 let
   acng-config = pkgs.writeTextFile {
     name = "acng-configuration";
@@ -151,5 +151,5 @@ let
 in
 {
   options.krebs.apt-cacher-ng = api;
-  config = mkIf cfg.enable imp;
+  config = lib.mkIf cfg.enable imp;
 }
diff --git a/krebs/3modules/backup.nix b/krebs/3modules/backup.nix
index 66a325ed9..0aa86dec9 100644
--- a/krebs/3modules/backup.nix
+++ b/krebs/3modules/backup.nix
@@ -1,9 +1,9 @@
 { config, lib, pkgs, ... }:
-with lib;
+with config.krebs.lib;
 let
   out = {
     options.krebs.backup = api;
-    config = mkIf cfg.enable imp;
+    config = lib.mkIf cfg.enable imp;
   };
 
   cfg = config.krebs.backup;
@@ -210,7 +210,7 @@ let
       | ${pkgs.coreutils}/bin/head -1; }
   '';
 
-  # Note that we don't escape word on purpose, so we deref shell vars.
+  # Note that we don't escape word on purpose, so we can deref shell vars.
   # TODO type word
   network-ssh-port = host: word: ''
     case ${word} in
diff --git a/krebs/3modules/bepasty-server.nix b/krebs/3modules/bepasty-server.nix
index e74841205..9e777a5ef 100644
--- a/krebs/3modules/bepasty-server.nix
+++ b/krebs/3modules/bepasty-server.nix
@@ -1,6 +1,6 @@
 { config, lib, pkgs, ... }:
 
-with lib;
+with config.krebs.lib;
 let
   gunicorn = pkgs.pythonPackages.gunicorn;
   bepasty = pkgs.pythonPackages.bepasty-server;
@@ -10,8 +10,8 @@ let
 
   out = {
     options.krebs.bepasty = api;
-    config = mkIf cfg.enable (mkMerge [
-      (mkIf cfg.serveNginx nginx-imp)
+    config = lib.mkIf cfg.enable (lib.mkMerge [
+      (lib.mkIf cfg.serveNginx nginx-imp)
       imp
     ]);
   };
diff --git a/krebs/3modules/build.nix b/krebs/3modules/build.nix
index 3530fd595..a1f446188 100644
--- a/krebs/3modules/build.nix
+++ b/krebs/3modules/build.nix
@@ -1,6 +1,6 @@
 { config, lib, ... }:
 
-with lib;
+with config.krebs.lib;
 
 let
   out = {
@@ -51,6 +51,7 @@ let
         source = config.krebs.build.source;
         target-user = maybeEnv "target_user" "root";
         target-host = maybeEnv "target_host" config.krebs.build.host.name;
+        target-port = maybeEnv "target_port" "22";
         target-path = maybeEnv "target_path" "/var/src";
         out = ''
           #! /bin/sh
@@ -62,7 +63,8 @@ let
           }
 
           echo ${shell.escape git-script} \
-            | ssh ${shell.escape "${target-user}@${target-host}"} -T
+            | ssh -p ${shell.escape target-port} \
+                  ${shell.escape "${target-user}@${target-host}"} -T
 
           unset tmpdir
           trap '
@@ -93,6 +95,7 @@ let
                     (attrNames file-specs)} \
                   --delete \
                   -vFrlptD \
+                  -e ${shell.escape "ssh -p ${target-port}"} \
                   ${shell.escape target-path}/ \
                   ${shell.escape "${target-user}@${target-host}:${target-path}"}
         '';
diff --git a/krebs/3modules/buildbot/master.nix b/krebs/3modules/buildbot/master.nix
index 74385a433..825cb3413 100644
--- a/krebs/3modules/buildbot/master.nix
+++ b/krebs/3modules/buildbot/master.nix
@@ -1,6 +1,6 @@
 { config, pkgs, lib, ... }:
 
-with lib;
+with config.krebs.lib;
 let
   buildbot = pkgs.buildbot;
   buildbot-master-config = pkgs.writeText "buildbot-master.cfg" ''
@@ -381,5 +381,5 @@ let
 in
 {
   options.krebs.buildbot.master = api;
-  config = mkIf cfg.enable imp;
+  config = lib.mkIf cfg.enable imp;
 }
diff --git a/krebs/3modules/buildbot/slave.nix b/krebs/3modules/buildbot/slave.nix
index 0e7796d8a..7705ac31c 100644
--- a/krebs/3modules/buildbot/slave.nix
+++ b/krebs/3modules/buildbot/slave.nix
@@ -1,6 +1,6 @@
 { config, pkgs, lib, ... }:
 
-with lib;
+with config.krebs.lib;
 let
   buildbot-slave-init = pkgs.writeText "buildbot-slave.tac" ''
     import os
@@ -182,5 +182,5 @@ let
 in
 {
   options.krebs.buildbot.slave = api;
-  config = mkIf cfg.enable imp;
+  config = lib.mkIf cfg.enable imp;
 }
diff --git a/krebs/3modules/current.nix b/krebs/3modules/current.nix
index 41941e289..9f63e33ac 100644
--- a/krebs/3modules/current.nix
+++ b/krebs/3modules/current.nix
@@ -1,13 +1,13 @@
 { config, pkgs, lib, ... }:
 
-with lib;
+with config.krebs.lib;
 
 let
   cfg = config.krebs.current;
 
   out = {
     options.krebs.current = api;
-    config = mkIf cfg.enable imp;
+    config = lib.mkIf cfg.enable imp;
   };
 
   api = {
diff --git a/krebs/3modules/default.nix b/krebs/3modules/default.nix
index 060b4445d..c06f3754e 100644
--- a/krebs/3modules/default.nix
+++ b/krebs/3modules/default.nix
@@ -1,6 +1,6 @@
 { config, lib, ... }:
 
-with lib;
+with config.krebs.lib;
 let
   cfg = config.krebs;
 
@@ -9,9 +9,9 @@ let
       ./apt-cacher-ng.nix
       ./backup.nix
       ./bepasty-server.nix
-      ./build.nix
       ./buildbot/master.nix
       ./buildbot/slave.nix
+      ./build.nix
       ./current.nix
       ./exim-retiolum.nix
       ./exim-smarthost.nix
@@ -20,19 +20,21 @@ let
       ./git.nix
       ./go.nix
       ./iptables.nix
+      ./lib.nix
       ./nginx.nix
       ./nixpkgs.nix
       ./per-user.nix
       ./Reaktor.nix
-      ./retiolum-bootstrap.nix
       ./realwallpaper.nix
+      ./retiolum-bootstrap.nix
       ./retiolum.nix
+      ./setuid.nix
       ./tinc_graphs.nix
       ./urlwatch.nix
       ./repo-sync.nix
     ];
     options.krebs = api;
-    config = mkIf cfg.enable imp;
+    config = lib.mkIf cfg.enable imp;
   };
 
   api = {
@@ -83,13 +85,13 @@ let
     };
   };
 
-  imp = mkMerge [
-    { krebs = import ./lass { inherit lib; }; }
-    { krebs = import ./makefu { inherit lib; }; }
-    { krebs = import ./miefda { inherit lib; }; }
-    { krebs = import ./mv { inherit lib; }; }
-    { krebs = import ./shared { inherit lib; }; }
-    { krebs = import ./tv { inherit lib; }; }
+  imp = lib.mkMerge [
+    { krebs = import ./lass   { inherit config lib; }; }
+    { krebs = import ./makefu { inherit config lib; }; }
+    { krebs = import ./miefda { inherit config lib; }; }
+    { krebs = import ./mv     { inherit config lib; }; }
+    { krebs = import ./shared { inherit config lib; }; }
+    { krebs = import ./tv     { inherit config lib; }; }
     {
       krebs.dns.providers = {
         de.krebsco = "zones";
diff --git a/krebs/3modules/exim-retiolum.nix b/krebs/3modules/exim-retiolum.nix
index ea012c38c..1722eef1f 100644
--- a/krebs/3modules/exim-retiolum.nix
+++ b/krebs/3modules/exim-retiolum.nix
@@ -1,12 +1,12 @@
 { config, pkgs, lib, ... }:
 
-with lib;
+with config.krebs.lib;
 let
   cfg = config.krebs.exim-retiolum;
 
   out = {
     options.krebs.exim-retiolum = api;
-    config = mkIf cfg.enable imp;
+    config = lib.mkIf cfg.enable imp;
   };
 
   api = {
diff --git a/krebs/3modules/exim-smarthost.nix b/krebs/3modules/exim-smarthost.nix
index a564430ea..267ee2900 100644
--- a/krebs/3modules/exim-smarthost.nix
+++ b/krebs/3modules/exim-smarthost.nix
@@ -1,13 +1,12 @@
 { config, pkgs, lib, ... }:
 
-with builtins;
-with lib;
+with config.krebs.lib;
 let
   cfg = config.krebs.exim-smarthost;
 
   out = {
     options.krebs.exim-smarthost = api;
-    config = mkIf cfg.enable imp;
+    config = lib.mkIf cfg.enable imp;
   };
 
   api = {
diff --git a/krebs/3modules/fetchWallpaper.nix b/krebs/3modules/fetchWallpaper.nix
index 225f00803..53fe0839d 100644
--- a/krebs/3modules/fetchWallpaper.nix
+++ b/krebs/3modules/fetchWallpaper.nix
@@ -1,13 +1,13 @@
 { config, lib, pkgs, ... }:
 
-with lib;
+with config.krebs.lib;
 
 let
   cfg = config.krebs.fetchWallpaper;
 
   out = {
     options.krebs.fetchWallpaper = api;
-    config = mkIf cfg.enable imp;
+    config = lib.mkIf cfg.enable imp;
   };
 
   api = {
diff --git a/krebs/3modules/git.nix b/krebs/3modules/git.nix
index 11cf21b5f..a9542718d 100644
--- a/krebs/3modules/git.nix
+++ b/krebs/3modules/git.nix
@@ -1,4 +1,4 @@
-{ config, pkgs, lib, ... }:
+{ config, lib, pkgs, ... }:
 
 # TODO unify logging of shell scripts to user and journal
 # TODO move all scripts to ${etcDir}, so ControlMaster connections
@@ -6,13 +6,13 @@
 # TODO when authorized_keys changes, then restart ssh
 #       (or kill already connected users somehow)
 
-with lib;
+with config.krebs.lib;
 let
   cfg = config.krebs.git;
 
   out = {
     options.krebs.git = api;
-    config = mkIf cfg.enable (mkMerge [
+    config = with lib; mkIf cfg.enable (mkMerge [
       (mkIf cfg.cgit cgit-imp)
       git-imp
     ]);
@@ -86,7 +86,7 @@ let
         singleton {
           user = [ config.krebs.users.tv ];
           repo = [ testing ]; # see literal example of repos
-          perm = push "refs/*" (with lib.git; [
+          perm = push "refs/*" (with config.krebs.lib.git; [
             non-fast-forward create delete merge
           ]);
         }
diff --git a/krebs/3modules/github-hosts-sync.nix b/krebs/3modules/github-hosts-sync.nix
index 2aa18d53a..1d3873232 100644
--- a/krebs/3modules/github-hosts-sync.nix
+++ b/krebs/3modules/github-hosts-sync.nix
@@ -1,12 +1,12 @@
 { config, lib, pkgs, ... }:
 
-with lib;
+with config.krebs.lib;
 let
   cfg = config.krebs.github-hosts-sync;
 
   out = {
     options.krebs.github-hosts-sync = api;
-    config = mkIf cfg.enable imp;
+    config = lib.mkIf cfg.enable imp;
   };
 
   api = {
diff --git a/krebs/3modules/go.nix b/krebs/3modules/go.nix
index 08a93dab7..52a104bb9 100644
--- a/krebs/3modules/go.nix
+++ b/krebs/3modules/go.nix
@@ -1,13 +1,13 @@
 { config, lib, pkgs, ... }:
 
-with lib;
+with config.krebs.lib;
 
 let
   cfg = config.krebs.go;
 
   out = {
     options.krebs.go = api;
-    config = mkIf cfg.enable imp;
+    config = lib.mkIf cfg.enable imp;
   };
 
   api = {
diff --git a/krebs/3modules/lass/default.nix b/krebs/3modules/lass/default.nix
index 749d3ff49..41a609105 100644
--- a/krebs/3modules/lass/default.nix
+++ b/krebs/3modules/lass/default.nix
@@ -1,6 +1,6 @@
-{ lib, ... }:
+{ config, lib, ... }:
 
-with lib;
+with config.krebs.lib;
 
 {
   hosts = {
diff --git a/krebs/3modules/lib.nix b/krebs/3modules/lib.nix
new file mode 100644
index 000000000..b19f275b5
--- /dev/null
+++ b/krebs/3modules/lib.nix
@@ -0,0 +1,15 @@
+{ config, pkgs, lib, ... }:
+with lib;
+let
+  out = {
+    options.krebs.lib = api;
+    config = imp;
+  };
+  api = mkOption {
+    default = {};
+    type = types.attrs;
+  };
+  imp = {
+    krebs.lib = lib // import ../4lib { inherit lib; } // builtins;
+  };
+in out
diff --git a/krebs/3modules/makefu/default.nix b/krebs/3modules/makefu/default.nix
index 2811c0c52..ca83d6906 100644
--- a/krebs/3modules/makefu/default.nix
+++ b/krebs/3modules/makefu/default.nix
@@ -1,6 +1,6 @@
-{ lib, ... }:
+{ config, lib, ... }:
 
-with lib;
+with config.krebs.lib;
 
 {
   hosts = {
@@ -292,8 +292,8 @@ with lib;
       cores = 1;
       nets = {
         retiolm = {
-          addrs4 = ["10.243.214.15/32"];
-          addrs6 = ["42:5a02:2c30:c1b1:3f2e:7c19:2496:a732/128"];
+          addrs4 = ["10.243.214.15"];
+          addrs6 = ["42:5a02:2c30:c1b1:3f2e:7c19:2496:a732"];
           aliases = [
               "wbob.retiolum"
           ];
diff --git a/krebs/3modules/miefda/default.nix b/krebs/3modules/miefda/default.nix
index 0cfa8bd27..6587ad92d 100644
--- a/krebs/3modules/miefda/default.nix
+++ b/krebs/3modules/miefda/default.nix
@@ -1,6 +1,6 @@
-{ lib, ... }:
+{ config, lib, ... }:
 
-with lib;
+with config.krebs.lib;
 
 {
   hosts = {
diff --git a/krebs/3modules/mv/default.nix b/krebs/3modules/mv/default.nix
index 8803cb249..33f941aae 100644
--- a/krebs/3modules/mv/default.nix
+++ b/krebs/3modules/mv/default.nix
@@ -1,6 +1,6 @@
-{ lib, ... }:
+{ config, ... }:
 
-with lib;
+with config.krebs.lib;
 
 {
   hosts = {
diff --git a/krebs/3modules/nginx.nix b/krebs/3modules/nginx.nix
index 921771033..7b7163071 100644
--- a/krebs/3modules/nginx.nix
+++ b/krebs/3modules/nginx.nix
@@ -1,13 +1,12 @@
-{ config, pkgs, lib, ... }:
+{ config, lib, pkgs, ... }:
 
-with builtins;
-with lib;
+with config.krebs.lib;
 let
   cfg = config.krebs.nginx;
 
   out = {
     options.krebs.nginx = api;
-    config = mkIf cfg.enable imp;
+    config = lib.mkIf cfg.enable imp;
   };
 
   api = {
@@ -34,6 +33,7 @@ let
         };
         locations = mkOption {
           type = with types; listOf (attrsOf str);
+          default = [];
         };
         extraConfig = mkOption {
           type = with types; string;
@@ -76,8 +76,8 @@ let
     server {
       ${concatMapStringsSep "\n" (x: "listen ${x};") listen}
       server_name ${toString server-names};
-      ${extraConfig}
-      ${indent (concatStrings (map to-location locations))}
+      ${indent extraConfig}
+      ${indent (concatMapStrings to-location locations)}
     }
   '';
 
diff --git a/krebs/3modules/nixpkgs.nix b/krebs/3modules/nixpkgs.nix
index 4129f9483..5816b8a30 100644
--- a/krebs/3modules/nixpkgs.nix
+++ b/krebs/3modules/nixpkgs.nix
@@ -1,11 +1,11 @@
-{ config, pkgs, lib, ... }:
-with lib;
+{ config, lib, pkgs, ... }:
+with config.krebs.lib;
 let
   cfg = config.krebs.nixpkgs;
 
   out = {
     options.krebs.nixpkgs = api;
-    config = mkIf cfg.enable imp;
+    config = lib.mkIf cfg.enable imp;
   };
 
   api = {
@@ -37,7 +37,7 @@ let
     };
   };
 
-  imp = mkIf (cfg.allowUnfreePredicate != null) {
+  imp = lib.mkIf (cfg.allowUnfreePredicate != null) {
     nixpkgs.config.allowUnfreePredicate = cfg.allowUnfreePredicate;
   };
 in out
diff --git a/krebs/3modules/per-user.nix b/krebs/3modules/per-user.nix
index ee213deda..13da5c4c3 100644
--- a/krebs/3modules/per-user.nix
+++ b/krebs/3modules/per-user.nix
@@ -1,6 +1,6 @@
 { config, lib, pkgs, ... }:
 
-with lib;
+with config.krebs.lib;
 
 let
   cfg = config.krebs.per-user;
diff --git a/krebs/3modules/realwallpaper.nix b/krebs/3modules/realwallpaper.nix
index b377368f7..df374e184 100644
--- a/krebs/3modules/realwallpaper.nix
+++ b/krebs/3modules/realwallpaper.nix
@@ -1,12 +1,12 @@
-arg@{ config, lib, pkgs, ... }:
+{ config, lib, pkgs, ... }:
 
-with lib;
+with config.krebs.lib;
 let
   cfg = config.krebs.realwallpaper;
 
   out = {
     options.krebs.realwallpaper = api;
-    config = mkIf cfg.enable imp;
+    config = lib.mkIf cfg.enable imp;
   };
 
   api = {
diff --git a/krebs/3modules/retiolum-bootstrap.nix b/krebs/3modules/retiolum-bootstrap.nix
index 65bb51193..40382d098 100644
--- a/krebs/3modules/retiolum-bootstrap.nix
+++ b/krebs/3modules/retiolum-bootstrap.nix
@@ -1,12 +1,12 @@
 { config, lib, pkgs, ... }:
 
-with lib;
+with config.krebs.lib;
 let
   cfg = config.krebs.retiolum-bootstrap;
 
   out = {
     options.krebs.retiolum-bootstrap = api;
-    config = mkIf cfg.enable imp ;
+    config = lib.mkIf cfg.enable imp;
   };
 
   api = {
diff --git a/krebs/3modules/retiolum.nix b/krebs/3modules/retiolum.nix
index 407695273..d0162eae9 100644
--- a/krebs/3modules/retiolum.nix
+++ b/krebs/3modules/retiolum.nix
@@ -1,11 +1,11 @@
 { config, pkgs, lib, ... }:
-with lib;
+with config.krebs.lib;
 let
   cfg = config.krebs.retiolum;
 
   out = {
     options.krebs.retiolum = api;
-    config = mkIf cfg.enable imp;
+    config = lib.mkIf cfg.enable imp;
   };
 
   api = {
diff --git a/krebs/3modules/setuid.nix b/krebs/3modules/setuid.nix
new file mode 100644
index 000000000..1137788d8
--- /dev/null
+++ b/krebs/3modules/setuid.nix
@@ -0,0 +1,75 @@
+{ config, pkgs, lib, ... }:
+with config.krebs.lib;
+let
+  cfg = config.krebs.setuid;
+
+  out = {
+    options.krebs.setuid = api;
+    config = imp;
+  };
+
+  api = mkOption {
+    default = {};
+    type = let
+      # TODO make wrapperDir configurable
+      inherit (config.security) wrapperDir;
+      inherit (config.users) groups users;
+    in types.attrsOf (types.submodule ({ config, ... }: {
+      options = {
+        name = mkOption {
+          type = types.filename;
+          default = config._module.args.name;
+        };
+        filename = mkOption {
+          type = mkOptionType {
+            # TODO unyuck string and merge with toC
+            name = "derivation or string";
+            check = x:
+              isDerivation x ||
+              isString x;
+          };
+          apply = toString;
+        };
+        owner = mkOption {
+          default = "root";
+          type = types.enum (attrNames users);
+        };
+        group = mkOption {
+          default = "root";
+          type = types.enum (attrNames groups);
+        };
+        mode = mkOption {
+          default = "4710";
+          type = mkOptionType {
+            # TODO admit symbolic mode
+            name = "octal mode";
+            check = x:
+              isString x &&
+              match "[0-7][0-7][0-7][0-7]" x != null;
+          };
+        };
+        activate = mkOption {
+          type = types.str;
+          visible = false;
+          readOnly = true;
+        };
+      };
+      config.activate = let
+        src = pkgs.execve config.name {
+          inherit (config) filename;
+        };
+        dst = "${wrapperDir}/${config.name}";
+      in ''
+        cp ${src} ${dst}
+        chown ${config.owner}.${config.group} ${dst}
+        chmod ${config.mode} ${dst}
+      '';
+    }));
+  };
+
+  imp = {
+    system.activationScripts."krebs.setuid" = stringAfter [ "setuid" ]
+      (concatMapStringsSep "\n" (getAttr "activate") (attrValues cfg));
+  };
+
+in out
diff --git a/krebs/3modules/shared/default.nix b/krebs/3modules/shared/default.nix
index df4c529bf..208b596f8 100644
--- a/krebs/3modules/shared/default.nix
+++ b/krebs/3modules/shared/default.nix
@@ -1,9 +1,8 @@
-{ lib, ... }:
-
-with lib;
+{ config, ... }:
 
+with config.krebs.lib;
 let
-  testHosts = lib.genAttrs [
+  testHosts = genAttrs [
     "test-arch"
     "test-centos6"
     "test-centos7"
diff --git a/krebs/3modules/tinc_graphs.nix b/krebs/3modules/tinc_graphs.nix
index dc0484a8b..2692de982 100644
--- a/krebs/3modules/tinc_graphs.nix
+++ b/krebs/3modules/tinc_graphs.nix
@@ -1,6 +1,6 @@
 { config, lib, pkgs, ... }:
 
-with lib;
+with config.krebs.lib;
 let
   cfg = config.krebs.tinc_graphs;
   internal_dir = "${cfg.workingDir}/internal";
@@ -8,7 +8,7 @@ let
 
   out = {
     options.krebs.tinc_graphs = api;
-    config = mkIf cfg.enable imp ;
+    config = lib.mkIf cfg.enable imp ;
   };
 
   api = {
diff --git a/krebs/3modules/tv/default.nix b/krebs/3modules/tv/default.nix
index 9a0b99396..f8d3d8671 100644
--- a/krebs/3modules/tv/default.nix
+++ b/krebs/3modules/tv/default.nix
@@ -1,6 +1,6 @@
-{ lib, ... }:
+{ config, ... }:
 
-with lib;
+with config.krebs.lib;
 
 {
   dns.providers = {
diff --git a/krebs/3modules/urlwatch.nix b/krebs/3modules/urlwatch.nix
index 7a9fb55fd..cd4976a21 100644
--- a/