code: func NewMarkControlPlanePhase() workflow.Phase {
  	return workflow.Phase{
  		Name:    "mark-control-plane",
  		Short:   "Mark a node as a control-plane",
  		Example: markControlPlaneExample,
  		InheritFlags: []string{
  			options.NodeName,
  			options.CfgPath,
  		},
  		Run: runMarkControlPlane,
  	}
  }
docs: // NewMarkControlPlanePhase creates a kubeadm workflow phase that implements mark-controlplane checks.