cluster/kube: generate namespaces in NamespaceAdmins

Change-Id: I37981a4d8d7cf9b85b9b9ab8cfdfc6c66eaa4453
Reviewed-on: https://gerrit.hackerspace.pl/c/hscloud/+/1760
Reviewed-by: radex <radex@hackerspace.pl>

cluster/kube/lib/admins.libsonnet

@@ -18,6 +18,10 @@ local kube = import "../../../kube/kube.libsonnet";
     NamespaceAdmins: {
         namespaces:: error "namespaces not set",
         local namespaces = self.namespaces,
+        nsObjects: [
+            kube.Namespace(namespace)
+            for namespace in std.objectFields(namespaces)
+        ],
         roleBindings: [
             createNamespaceRoleBinding(namespace, namespaces[namespace])
             for namespace in std.objectFields(namespaces)