kubeadm Config Generator

The kubeadm Config Generator writes a multi-document kubeadm configuration so you can bootstrap a self-managed Kubernetes control plane without memorising the schema. You set the advertise address, bind port, CRI socket, Kubernetes version, control-plane endpoint and pod/service subnets.

The output is two YAML documents (InitConfiguration and ClusterConfiguration) joined by ---. The Kubernetes version is validated. Everything runs locally - nothing is uploaded and no cluster connection is made.

• kubeadm schema - correct v1beta3 configs.
• Multi-doc - InitConfiguration + ClusterConfiguration.
• Networking - pod and service subnets.
• Validation - Kubernetes version format.
• Copy / Download / Print - get kubeadm-config.yaml wherever you need it.

1. Set advertise address and bind port.
2. Set CRI socket and Kubernetes version.
3. Set subnets and control-plane endpoint.
4. Watch the preview and export.

Example 1 - default. 192.168.0.1:6443, containerd, v1.29.0.

Example 2 - custom subnets. pod 10.244.0.0/16, service 10.96.0.0/12.

• Correct schema - valid kubeadm config.
• Validated - version format checked.
• Clean output - empty fields omitted.
• Private - everything runs in the browser.
• Copy, download or print - get the manifest where you need it.