lib/dns: add extraRecords

nix/lib/config/options.nix

@@ -159,7 +159,24 @@ let
       domainName = mkOption {
         description = "Domain name option";
         type = types.str;
-        default = "${name}.zentralwerk.dn42";
+        default = "${name}.zentralwerk.org";
+      };
+      extraRecords = mkOption {
+        type = with types; listOf (submodule {
+          options = {
+            name = mkOption {
+              type = str;
+            };
+            type = mkOption {
+              type = enum [ "A" "AAAA" "MX" "SRV" "CNAME" "TXT" ];
+            };
+            data = mkOption {
+              type = str;
+            };
+          };
+        });
+        default = [];
+        description = "Extraneous DNS records";
       };
       dynamicDomain = mkOption {
         type = types.bool;

nix/lib/dns.nix

@@ -174,19 +174,21 @@ rec {
       } ];
     } ] ++ builtins.concatLists (
       builtins.attrValues (
-        builtins.mapAttrs (net: { dynamicDomain, hosts4, hosts6, ... }: [
+        builtins.mapAttrs (net: { dynamicDomain, hosts4, hosts6, extraRecords, ... }: [
           {
             name = "${net}.zentralwerk.dn42";
             ns = internalNS;
             records =
-              lib.optionals (hosts6 ? dn42) (hosts6Records hosts6.dn42);
+              lib.optionals (hosts6 ? dn42) (hosts6Records hosts6.dn42) ++
+              extraRecords;
           }
           {
             name = "${net}.zentralwerk.org";
             ns = publicNS;
             records =
               hosts4Records hosts4 ++
-              lib.optionals (hosts6 ? up4) (hosts6Records hosts6.up4);
+              lib.optionals (hosts6 ? up4) (hosts6Records hosts6.up4) ++
+              extraRecords;
             dynamic = dynamicDomain;
           }
         ]) namedNets

nix/nixos-module/container/dns.nix

@@ -39,7 +39,7 @@ in
           type = types.str;
         };
         type = mkOption {
-          type = types.enum [ "A" "AAAA" "PTR" ];
+          type = types.enum [ "A" "AAAA" "MX" "SRV" "CNAME" "TXT" "PTR" ];
         };
         data = mkOption {
           type = types.str;