diff --git a/global/overlay/etc/puppet/cosmos-rules.yaml b/global/overlay/etc/puppet/cosmos-rules.yaml
index ab44c87..93fc193 100644
--- a/global/overlay/etc/puppet/cosmos-rules.yaml
+++ b/global/overlay/etc/puppet/cosmos-rules.yaml
@@ -14,3 +14,7 @@
         - se-fre-lb-1.sunet.se
         - se-tug-lb-1.sunet.se
         port: '443'
+'^internal-sto4-test-k8sw-[0-9].rut.sunet.se$':
+  rut::infra_ca_rp:
+  sunet::microk8s::node: 
+    channel: 1.28/stable