Fix type of SRV target (#1)

* Fix type of SRV target

* SRV target is not nullable

* Add SRV record to tests

---------

Co-authored-by: Janik <80165193+Janik-Haag@users.noreply.github.com>

Author: rossabaker

modules/records.nix

@@ -299,8 +299,8 @@ lib.mapAttrs
               description = lib.mdDoc ''
                 The canonical hostname of the machine providing the service.
               '';
-              example = "ftp://example.com/public";
-              type = lib.types.int;
+              example = "example.com";
+              type = lib.types.str; # change str to lib.types.domain once it exists;
               apply = x: "${x}.";
             };
           };

utils/tests/debug.nix

@@ -46,6 +46,9 @@ in
         "example.org" = {
           cname = { data = [ "www.example.com" ]; ttl = 60; };
         };
+        "_xmpp._tcp.example.org" = {
+          srv = { data = [{ port = 5223; priority = 10; weight = 5; target = "host1.example.com."; }]; ttl = 60; };
+        };
       };
     };
   };

utils/tests/domains.nix

@@ -128,6 +128,9 @@
         "example.org" = {
           cname = { data = [ "www.example.com" ]; ttl = 60; };
         };
+        "_xmpp._tcp.example.org" = {
+          srv = { data = [{ port = 5223; priority = 10; weight = 5; target = "host1.example.com."; }]; ttl = 60; };
+        };
       };
     };
   };

utils/tests/resources/dnsConfig.nix

@@ -19,6 +19,14 @@ in
         "" = {
           cname.data = "www.example.com";
         };
+        "_xmpp._tcp" = {
+          srv.data = {
+            priority = 10;
+            weight = 5;
+            port = 5223;
+            target = "host1.example.com";
+          };
+        };
       };
     };
   };