krebs: move hosts to dedeicated file

3 files changed, 38 insertions, 25 deletions

diff --git a/krebs/3modules/default.nix b/krebs/3modules/default.nix
index ea4d03ad6..bb69bfad3 100644
--- a/krebs/3modules/default.nix
+++ b/krebs/3modules/default.nix
@@ -28,6 +28,7 @@ let
       ./git.nix
       ./go.nix
       ./hidden-ssh.nix
+      ./hosts.nix
       ./htgen.nix
       ./iana-etc.nix
       ./iptables.nix
@@ -61,11 +62,6 @@ let
   api = {
     enable = mkEnableOption "krebs";
 
-    hosts = mkOption {
-      type = with types; attrsOf host;
-      default = {};
-    };
-
     users = mkOption {
       type = with types; attrsOf user;
     };
@@ -129,25 +125,6 @@ let
         };
       };
 
-      networking.extraHosts = let
-        domains = attrNames (filterAttrs (_: eq "hosts") cfg.dns.providers);
-        check = hostname: any (domain: hasSuffix ".${domain}" hostname) domains;
-      in concatStringsSep "\n" (flatten (
-        mapAttrsToList (hostname: host:
-          mapAttrsToList (netname: net:
-            let
-              aliases = longs ++ shorts;
-              longs = filter check net.aliases;
-              shorts = let s = ".${cfg.dns.search-domain}"; in
-                map (removeSuffix s) (filter (hasSuffix s) longs);
-            in
-              optionals
-                (aliases != [])
-                (map (addr: "${addr} ${toString aliases}") net.addrs)
-          ) (filterAttrs (name: host: host.aliases != []) host.nets)
-        ) cfg.hosts
-      ));
-
       services.openssh.hostKeys =
         let inherit (config.krebs.build.host.ssh) privkey; in
         mkIf (privkey != null) (mkForce [privkey]);
diff --git a/krebs/3modules/hosts.nix b/krebs/3modules/hosts.nix
new file mode 100644
index 000000000..a95557b3d
--- /dev/null
+++ b/krebs/3modules/hosts.nix
@@ -0,0 +1,36 @@
+with import <stockholm/lib>;
+{ config, ... }: let
+  # TODO dedup functions with ./retiolum-hosts.nix
+  check = hostname: any (domain: hasSuffix ".${domain}" hostname) domains;
+  domains = attrNames (filterAttrs (_: eq "hosts") config.krebs.dns.providers);
+in {
+
+  options = {
+    krebs.hosts = mkOption {
+      default = {};
+      type = types.attrsOf types.host;
+    };
+  };
+
+  config = {
+    networking.extraHosts =
+      concatStringsSep
+        "\n"
+        (flatten
+          (mapAttrsToList
+            (hostname: host:
+              mapAttrsToList
+                (netname: net: let
+                  aliases = longs ++ shorts;
+                  longs = filter check net.aliases;
+                  shorts = let s = ".${config.krebs.dns.search-domain}"; in
+                    map (removeSuffix s) (filter (hasSuffix s) longs);
+                in
+                  optionals
+                    (aliases != [])
+                    (map (addr: "${addr} ${toString aliases}") net.addrs))
+                (filterAttrs (name: host: host.aliases != []) host.nets))
+            config.krebs.hosts));
+  };
+
+}
diff --git a/krebs/3modules/retiolum-hosts.nix b/krebs/3modules/retiolum-hosts.nix
index 2821d62d1..ddf85ead7 100644
--- a/krebs/3modules/retiolum-hosts.nix
+++ b/krebs/3modules/retiolum-hosts.nix
@@ -1,6 +1,6 @@
 with import <stockholm/lib>;
 { config, ... }: let
-  # TODO dedup functions with networking.extraHosts
+  # TODO dedup functions with ./hosts.nix
   check = hostname: any (domain: hasSuffix ".${domain}" hostname) domains;
   domains = attrNames (filterAttrs (_: eq "hosts") config.krebs.dns.providers);
 in {