diff --git a/lib/fudo/domains.nix b/lib/fudo/domains.nix
index f066bc0..d7e7dba 100644
--- a/lib/fudo/domains.nix
+++ b/lib/fudo/domains.nix
@@ -84,6 +84,24 @@ let
           default = null;
         };
 
+        kubernetes = let
+          kubeOpts.options = {
+            masters = mkOption {
+              type = listOf str;
+              description = "Master Kubernetes hosts.";
+            };
+
+            nodes = mkOption {
+              type = listOf str;
+              description = "List of Kubernetes nodes.";
+            };
+          };
+        in mkOption {
+          type = nullOr (submodule kubeOpts);
+          description = "Kubernetes configuration.";
+          default = null;
+        };
+
         backplane = mkOption {
           type = nullOr (submodule {
             options = {