initial set up for k3s service

clanServices/k3s/tests/vm/default.nix

@@ -0,0 +1,40 @@
+{ pkgs, ... }:
+{
+  name = "service-k3s";
+
+  clan = {
+    directory = ./.;
+
+    inventory = {
+      machines = {
+        node1 = {};
+        node2 = {};
+        node3 = {};
+      };
+
+      instances = {
+        k3s = {
+          module = {
+            name = "@amarth/k3s";
+            input = "self";
+          };
+
+          roles.server.machines."node1" = {};
+
+          roles.agent.machines."node2" = {};
+          roles.agent.machines."node3" = {};
+        };
+      };
+    };
+
+    nodes = {
+      node1 = {};
+      node2 = {};
+      node3 = {};
+    };
+
+    testScript = ''
+      start_all()
+    '';
+  };
+}