Kubeadm phases

phases.sh

preflight                  Run master pre-flight checks
kubelet-start              Writes kubelet settings and (re)starts the kubelet
certs                      Certificate generation
  /ca                        Generates the self-signed Kubernetes CA to provision identities for other Kubernetes components
  /apiserver                 Generates the certificate for serving the Kubernetes API
  /apiserver-kubelet-client  Generates the Client certificate for the API server to connect to kubelet
  /front-proxy-ca            Generates the self-signed CA to provision identities for front proxy
  /front-proxy-client        Generates the client for the front proxy
  /etcd-ca                   Generates the self-signed CA to provision identities for etcd
  /etcd-server               Generates the certificate for serving etcd
  /etcd-peer                 Generates the credentials for etcd nodes to communicate with each other
  /etcd-healthcheck-client   Generates the client certificate for liveness probes to healtcheck etcd
  /apiserver-etcd-client     Generates the client apiserver uses to access etcd
  /sa                        Generates a private key for signing service account tokens along with its public key
kubeconfig                 Generates all kubeconfig files necessary to establish the control plane and the admin kubeconfig file
  /admin                     Generates a kubeconfig file for the admin to use and for kubeadm itself
  /kubelet                   Generates a kubeconfig file for the kubelet to use *only* for cluster bootstrapping purposes
  /controller-manager        Generates a kubeconfig file for the controller manager to use
  /scheduler                 Generates a kubeconfig file for the scheduler to use
control-plane              Generates all static Pod manifest files necessary to establish the control plane
  /apiserver                 Generates the kube-apiserver static Pod manifest
  /controller-manager        Generates the kube-controller-manager static Pod manifest
  /scheduler                 Generates the kube-scheduler static Pod manifest
etcd                       Generates static Pod manifest file for local etcd.
  /local                     Generates the static Pod manifest file for a local, single-node local etcd instance.
upload-config              Uploads the kubeadm and kubelet configuration to a ConfigMap
  /kubeadm                   Uploads the kubeadm ClusterConfiguration to a ConfigMap
  /kubelet                   Uploads the kubelet component config to a ConfigMap
mark-control-plane         Mark a node as a control-plane
bootstrap-token            Generates bootstrap tokens used to join a node to a cluster
addon                      Installs required addons for passing Conformance tests
  /coredns                   Installs the CoreDNS addon to a Kubernetes cluster
  /kube-proxy                Installs the kube-proxy addon to a Kubernetes cluster