kubernetes/cmd/kubeadm/app/cmd/phases/init/waitcontrolplane.go

var kubeletFailTempl …

// NewWaitControlPlanePhase is a hidden phase that runs after the control-plane and etcd phases
func NewWaitControlPlanePhase() workflow.Phase { … }

func runWaitControlPlanePhase(c workflow.RunData) error { … }

// newControlPlaneWaiter returns a new waiter that is used to wait on the control plane to boot up.
func newControlPlaneWaiter(dryRun bool, timeout time.Duration, client clientset.Interface, out io.Writer) (apiclient.Waiter, error) { … }