Merge remote-tracking branch 'cd/master'

6 files changed, 90 insertions, 11 deletions

diff --git a/krebs/3modules/default.nix b/krebs/3modules/default.nix
index 186469e9..bdd9049c 100644
--- a/krebs/3modules/default.nix
+++ b/krebs/3modules/default.nix
@@ -23,6 +23,7 @@ let
       ./lib.nix
       ./nginx.nix
       ./nixpkgs.nix
+      ./os-release.nix
       ./per-user.nix
       ./Reaktor.nix
       ./realwallpaper.nix
diff --git a/krebs/3modules/exim-retiolum.nix b/krebs/3modules/exim-retiolum.nix
index 6e6928f8..696c48ba 100644
--- a/krebs/3modules/exim-retiolum.nix
+++ b/krebs/3modules/exim-retiolum.nix
@@ -39,6 +39,8 @@ let
         # TODO modular configuration
         assert config.krebs.retiolum.enable;
         ''
+          keep_environment =
+
           primary_hostname = ${cfg.primary_hostname}
           domainlist local_domains = ${concatStringsSep ":" cfg.local_domains}
           domainlist relay_to_domains = ${concatStringsSep ":" cfg.relay_to_domains}
diff --git a/krebs/3modules/exim-smarthost.nix b/krebs/3modules/exim-smarthost.nix
index c976e89d..cee10ce7 100644
--- a/krebs/3modules/exim-smarthost.nix
+++ b/krebs/3modules/exim-smarthost.nix
@@ -12,6 +12,29 @@ let
   api = {
     enable = mkEnableOption "krebs.exim-smarthost";
 
+    dkim = mkOption {
+      type = types.listOf (types.submodule ({ config, ... }: {
+        options = {
+          domain = mkOption {
+            type = types.str;
+          };
+          private_key = mkOption {
+            type = types.secret-file;
+            default = {
+              path = "/run/krebs.secret/${config.domain}.dkim_private_key";
+              owner.name = "exim";
+              source-path = toString <secrets> + "/${config.domain}.dkim.priv";
+            };
+          };
+          selector = mkOption {
+            type = types.str;
+            default = "default";
+          };
+        };
+      }));
+      default = [];
+    };
+
     internet-aliases = mkOption {
       type = types.listOf (types.submodule ({
         options = {
@@ -72,9 +95,21 @@ let
   };
 
   imp = {
+    krebs.secret.files = listToAttrs (flip map cfg.dkim (dkim: {
+      name = "exim.dkim_private_key/${dkim.domain}";
+      value = dkim.private_key;
+    }));
+    systemd.services = mkIf (cfg.dkim != []) {
+      exim = {
+        after = [ "secret.service" ];
+        requires = [ "secret.service" ];
+      };
+    };
     services.exim = {
       enable = true;
       config = ''
+        keep_environment =
+
         primary_hostname = ${cfg.primary_hostname}
 
         # HOST_REDIR contains the real destinations for "local_domains".
@@ -191,6 +226,12 @@ let
 
         remote_smtp:
           driver = smtp
+          ${optionalString (cfg.dkim != []) ''
+            dkim_canon = relaxed
+            dkim_domain = $sender_address_domain
+            dkim_private_key = ''${lookup{$sender_address_domain}lsearch{${lsearch.dkim_private_key}}}
+            dkim_selector = ''${lookup{$sender_address_domain}lsearch{${lsearch.dkim_selector}}}
+          ''}
           helo_data = ''${if eq{$acl_m_special_dom}{}  \
                                {$primary_hostname}   \
                                {$acl_m_special_dom} }
@@ -219,12 +260,20 @@ let
   };
 
 
-  lsearch = mapAttrs (name: set: toFile name (to-lsearch set)) {
+  lsearch = mapAttrs (name: set: toFile name (to-lsearch set)) ({
     inherit (cfg) internet-aliases;
     inherit (cfg) system-aliases;
-  };
-
-  to-lsearch = concatMapStringsSep "\n" ({ from, to, ... }: "${from}: ${to}");
-
-in
-out
+  } // optionalAttrs (cfg.dkim != []) {
+    dkim_private_key = flip map cfg.dkim (dkim: {
+      from = dkim.domain;
+      to = dkim.private_key.path;
+    });
+    dkim_selector = flip map cfg.dkim (dkim: {
+      from = dkim.domain;
+      to = dkim.selector;
+    });
+  });
+
+  to-lsearch = concatMapStrings ({ from, to, ... }: "${from}: ${to}\n");
+
+in out
diff --git a/krebs/3modules/git.nix b/krebs/3modules/git.nix
index 0cc2f11c..d2d73ba3 100644
--- a/krebs/3modules/git.nix
+++ b/krebs/3modules/git.nix
@@ -400,7 +400,7 @@ let
     #! /bin/sh
     set -euf
 
-    PATH=${makeSearchPath "bin" (with pkgs; [
+    PATH=${makeBinPath (with pkgs; [
       coreutils
       git
       gnugrep
@@ -451,7 +451,7 @@ let
     #! /bin/sh
     set -euf
 
-    PATH=${makeSearchPath "bin" (with pkgs; [
+    PATH=${makeBinPath (with pkgs; [
       coreutils
       findutils
       gawk
@@ -511,7 +511,7 @@ let
       #! /bin/sh
       set -euf
 
-      PATH=${makeSearchPath "bin" (with pkgs; [
+      PATH=${makeBinPath (with pkgs; [
         coreutils # env
         git
         systemd
diff --git a/krebs/3modules/nginx.nix b/krebs/3modules/nginx.nix
index ec39715d..2aa02344 100644
--- a/krebs/3modules/nginx.nix
+++ b/krebs/3modules/nginx.nix
@@ -49,7 +49,6 @@ let
     services.nginx = {
       enable = true;
       httpConfig = ''
-        include           ${pkgs.nginx}/conf/mime.types;
         default_type      application/octet-stream;
         sendfile          on;
         keepalive_timeout 65;
diff --git a/krebs/3modules/os-release.nix b/krebs/3modules/os-release.nix
new file mode 100644
index 00000000..4c803fff
--- /dev/null
+++ b/krebs/3modules/os-release.nix
@@ -0,0 +1,28 @@
+{ config, ... }:
+with config.krebs.lib;
+let
+  nixos-version-id = "${config.system.nixosVersion}";
+  nixos-version = "${nixos-version-id} (${config.system.nixosCodeName})";
+  nixos-pretty-name = "NixOS ${nixos-version}";
+
+  stockholm-version-id = maybeEnv "STOCKHOLM_VERSION" "unknown";
+  stockholm-version = "${stockholm-version-id}";
+  stockholm-pretty-name = "stockholm ${stockholm-version}";
+
+  version = "${stockholm-version}/${nixos-version}";
+  version-id = "${stockholm-version-id}/${nixos-version-id}";
+  pretty-name = "${stockholm-pretty-name} / ${nixos-pretty-name}";
+
+  home-url = http://cgit.cd.krebsco.de/stockholm;
+in
+{
+  # http://0pointer.de/public/systemd-man/os-release.html
+  environment.etc."os-release".text = mkForce ''
+    NAME="stockholm/NixOS"
+    ID=stockholm
+    VERSION="${version}"
+    VERSION_ID="${version-id}"
+    PRETTY_NAME="${pretty-name}"
+    HOME_URL="${home-url}"
+  '';
+}