diff --git a/puppet-manifests/src/modules/platform/templates/kubeadm.yaml.erb b/puppet-manifests/src/modules/platform/templates/kubeadm.yaml.erb
index 73c82111e3..5b79aec95c 100644
--- a/puppet-manifests/src/modules/platform/templates/kubeadm.yaml.erb
+++ b/puppet-manifests/src/modules/platform/templates/kubeadm.yaml.erb
@@ -17,6 +17,7 @@ apiServer:
     oidc-client-id: <%= @apiserver_oidc_client_id %>
     oidc-issuer-url: <%= @apiserver_oidc_issuer_url %>
     oidc-username-claim: <%= @apiserver_oidc_username_claim %>
+    feature-gates: "SCTPSupport=true"
 controllerManager:
   extraArgs:
     node-monitor-period: "2s"
diff --git a/tools/docker/images/Dockerfile b/tools/docker/images/Dockerfile
new file mode 100644
index 0000000000..2d014979ec
--- /dev/null
+++ b/tools/docker/images/Dockerfile
@@ -0,0 +1,4 @@
+FROM centos
+RUN yum install -y nc
+ENTRYPOINT ["nc"]
+CMD ["nc"]
diff --git a/tools/docker/images/Readme.rst b/tools/docker/images/Readme.rst
new file mode 100644
index 0000000000..09b02a9d84
--- /dev/null
+++ b/tools/docker/images/Readme.rst
@@ -0,0 +1,5 @@
+export VERSION=v1.0.0
+sudo docker build \
+  --network host \
+  -t netcat:${VERSION} \
+  .