diff --git a/teckids.yaml b/teckids.yaml
index 8d55b38e5736d992d2c1653437fe928e116c9ee1..c3852aead431b96f5133b7811d66076c39ea95b7 100644
--- a/teckids.yaml
+++ b/teckids.yaml
@@ -8,9 +8,7 @@ all:
     discourse01.teckids.org:
     gitlab01.teckids.org:
     jabber01.teckids.org:
-    master-1.kube.teckids.org:
-    master-2.kube.teckids.org:
-    master-3.kube.teckids.org:
+    master-[1:3].kube.teckids.org:
     media.teckids.org:
     monitoring.teckids.org:
     rz-sp-backup-01.teckids.org:
@@ -18,16 +16,7 @@ all:
     rz-sp-fw-02.teckids.org:
       ansible_host: 91.184.32.118
     rz-sp-virt-0[1:5].teckids.org:
-    worker-10.kube.teckids.org:
-    worker-1.kube.teckids.org:
-    worker-2.kube.teckids.org:
-    worker-3.kube.teckids.org:
-    worker-4.kube.teckids.org:
-    worker-5.kube.teckids.org:
-    worker-6.kube.teckids.org:
-    worker-7.kube.teckids.org:
-    worker-8.kube.teckids.org:
-    worker-9.kube.teckids.org:
+    worker[1:10].kube.teckids.org:
   children:
     kvm:
       hosts:
@@ -50,17 +39,7 @@ all:
           primary_control_plane: true
           cluster_version: v1.26.4
           package_version: 1.26.4-00
-        master-2.kube.teckids.org:
-        master-3.kube.teckids.org:
+        master-[2:3].kube.teckids.org:
     k8s_workers:
       hosts:
-        worker-1.kube.teckids.org:
-        worker-2.kube.teckids.org:
-        worker-3.kube.teckids.org:
-        worker-4.kube.teckids.org:
-        worker-5.kube.teckids.org:
-        worker-6.kube.teckids.org:
-        worker-7.kube.teckids.org:
-        worker-8.kube.teckids.org:
-        worker-9.kube.teckids.org:
-        worker-10.kube.teckids.org:
+        worker-[1:10].kube.teckids.org: