<ul><li>To make a control plane node a worker, you can use the 'kubectl label node' command.</li><li>After running the command, the first node will have both control-plane and worker roles.</li><li>You can check if the control plane node is tainted by using the 'kubectl get nodes' and 'kubectl get nodes <node-name> -o json | jq .spec.taints' commands.</li><li>To remove the effect of taint on the control plane, use the 'kubectl taint nodes <node-name> node-role.kubernetes.io/master:NoSchedule-' command.</li></ul>

Kubernetes: Make a control plane node a worker

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