--- title: Master id: master date: 2020-04-16 short_description: > Legacy term, used as synonym for nodes running the control plane. aka: tags: - fundamental --- Legacy term, used as synonym for {{< glossary_tooltip text="nodes" term_id="node" >}} hosting the {{< glossary_tooltip text="control plane" term_id="control-plane" >}}. The term is still being used by some provisioning tools, such as {{< glossary_tooltip text="kubeadm" term_id="kubeadm" >}}, and managed services, to {{< glossary_tooltip text="label" term_id="label" >}} {{< glossary_tooltip text="nodes" term_id="node" >}} with `kubernetes.io/role` and control placement of {{< glossary_tooltip text="control plane" term_id="control-plane" >}} {{< glossary_tooltip text="pods" term_id="pod" >}}.