diff --git a/k8s/c2/kubeadm.yaml b/k8s/c2/kubeadm.yaml
index 7dd8de2..21bcbbf 100644
--- a/k8s/c2/kubeadm.yaml
+++ b/k8s/c2/kubeadm.yaml
@@ -1,12 +1,12 @@
 # kubeadm-config.yaml
 kind: ClusterConfiguration
 apiVersion: kubeadm.k8s.io/v1beta2
-kubernetesVersion: v1.21.1
+kubernetesVersion: v1.21.2
 networking:
   dnsDomain: c2.k8s.ooo
   podSubnet: 2a0a:e5c0:13:e1::/64
   serviceSubnet: 2a0a:e5c0:13:e2::/108
-
+controlPlaneEndpoint: "api.c2.k8s.ooo:6443"
 ---
 kind: KubeletConfiguration
 apiVersion: kubelet.config.k8s.io/v1beta1
diff --git a/tests/secret-generation-test.yaml b/tests/secret-generation-test.yaml
new file mode 100644
index 0000000..2eb80b9
--- /dev/null
+++ b/tests/secret-generation-test.yaml
@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: string-secret
+  annotations:
+    secret-generator.v1.mittwald.de/autogenerate: password