flagSet.StringVar(
		&cfg.CertificatesDir, options.CertificatesDir, cfg.CertificatesDir,
		`The path where to save and store the certificates.`,
	)
	flagSet.StringSliceVar(
		&cfg.APIServer.CertSANs, options.APIServerCertSANs, cfg.APIServer.CertSANs,
		`Optional extra Subject Alternative Names (SANs) to use for the API Server serving certificate. Can be both IP addresses and DNS names.`,
	)

//	    authorization-mode: "Node,RBAC"
//	  extraVolumes:
//	  - name: "some-volume"
//	    hostPath: "/etc/some-path"
//	    mountPath: "/etc/some-pod-path"
//	    readOnly: false
//	    pathType: File
//	  certSANs:
//	  - "10.100.1.1"
//	  - "ec2-10-100-0-1.compute-1.amazonaws.com"
//	  timeoutForControlPlane: 4m0s
//	controllerManager:
//	  extraArgs:
//	    "node-cidr-mask-size": "20"
//	  extraVolumes:

	ExtraEnvs []EnvVar
}

// APIServer holds settings necessary for API server deployments in the cluster
type APIServer struct {
	ControlPlaneComponent

	// CertSANs sets extra Subject Alternative Names for the API Server signing cert.
	CertSANs []string

	// TimeoutForControlPlane controls the timeout that we use for API server to appear
	TimeoutForControlPlane *metav1.Duration
}

//	    authorization-mode: "Node,RBAC"
//	  extraVolumes:
//	  - name: "some-volume"
//	    hostPath: "/etc/some-path"
//	    mountPath: "/etc/some-pod-path"
//	    readOnly: false
//	    pathType: File
//	  certSANs:
//	  - "10.100.1.1"
//	  - "ec2-10-100-0-1.compute-1.amazonaws.com"
//	  timeoutForControlPlane: 4m0s
//	controllerManager:
//	  extraArgs:
//	    "node-cidr-mask-size": "20"
//	  extraVolumes:

func ValidateAPIServer(a *kubeadm.APIServer, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	allErrs = append(allErrs, ValidateCertSANs(a.CertSANs, fldPath.Child("certSANs"))...)
	allErrs = append(allErrs, ValidateExtraArgs(a.ExtraArgs, fldPath.Child("extraArgs"))...)
	return allErrs
}

			cfg.ControlPlaneEndpoint = net.JoinHostPort(host, strconv.FormatInt(int64(localAPIEndpoint.BindPort), 10))
		}
	}

	// Downcase SANs. Some domain names (like ELBs) have capitals in them.
	LowercaseSANs(cfg.APIServer.CertSANs)
	return nil
}

// DefaultedStaticInitConfiguration returns the internal InitConfiguration with static defaults.
func DefaultedStaticInitConfiguration() (*kubeadmapi.InitConfiguration, error) {

localAPIEndpoint:
  advertiseAddress: 192.168.2.2
  bindPort: 6443
bootstrapTokens:
- token: ce3aa5.5ec8455bb76b379f
  ttl: 24h
---
apiVersion: %[1]s
kind: ClusterConfiguration

apiServer:
  certSANs: null
  extraArgs: null
certificatesDir: %%s
etcd:
  local:
    dataDir: %%s
    image: ""
imageRepository: registry.k8s.io
kubernetesVersion: %%s
networking:
  dnsDomain: cluster.local

			}
		} else {
			return nil, errors.Wrapf(err, "error parsing cluster controlPlaneEndpoint %q", cfg.ControlPlaneEndpoint)
		}
	}

	appendSANsToAltNames(altNames, cfg.APIServer.CertSANs, kubeadmconstants.APIServerCertName)

	return altNames, nil
}

// GetEtcdAltNames builds an AltNames object for generating the etcd server certificate.