return err
	}
	out.DataDir = in.DataDir
	// WARNING: in.ExtraArgs requires manual conversion: inconvertible types (map[string]string vs []k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm.Arg)
	out.ServerCertSANs = *(*[]string)(unsafe.Pointer(&in.ServerCertSANs))
	out.PeerCertSANs = *(*[]string)(unsafe.Pointer(&in.PeerCertSANs))
	return nil
}

		in, out := &in.ExtraEnvs, &out.ExtraEnvs
		*out = make([]EnvVar, len(*in))
		for i := range *in {
			(*in)[i].DeepCopyInto(&(*out)[i])
		}
	}
	if in.ServerCertSANs != nil {
		in, out := &in.ServerCertSANs, &out.ServerCertSANs
		*out = make([]string, len(*in))
		copy(*out, *in)
	}
	if in.PeerCertSANs != nil {
		in, out := &in.PeerCertSANs, &out.PeerCertSANs
		*out = make([]string, len(*in))

	// command line except without leading dash(es).
	// +optional
	ExtraArgs map[string]string `json:"extraArgs,omitempty"`

	// ServerCertSANs sets extra Subject Alternative Names for the etcd server signing cert.
	// +optional
	ServerCertSANs []string `json:"serverCertSANs,omitempty"`
	// PeerCertSANs sets extra Subject Alternative Names for the etcd peer signing cert.
	// +optional

		in, out := &in.ExtraEnvs, &out.ExtraEnvs
		*out = make([]EnvVar, len(*in))
		for i := range *in {
			(*in)[i].DeepCopyInto(&(*out)[i])
		}
	}
	if in.ServerCertSANs != nil {
		in, out := &in.ServerCertSANs, &out.ServerCertSANs
		*out = make([]string, len(*in))
		copy(*out, *in)
	}
	if in.PeerCertSANs != nil {
		in, out := &in.PeerCertSANs, &out.PeerCertSANs
		*out = make([]string, len(*in))

	// +optional
	ExtraEnvs []EnvVar `json:"extraEnvs,omitempty"`

	// ServerCertSANs sets extra Subject Alternative Names for the etcd server signing cert.
	// +optional
	ServerCertSANs []string `json:"serverCertSANs,omitempty"`
	// PeerCertSANs sets extra Subject Alternative Names for the etcd peer signing cert.
	// +optional

		return err
	}
	out.DataDir = in.DataDir
	out.ExtraArgs = *(*[]kubeadm.Arg)(unsafe.Pointer(&in.ExtraArgs))
	out.ExtraEnvs = *(*[]kubeadm.EnvVar)(unsafe.Pointer(&in.ExtraEnvs))
	out.ServerCertSANs = *(*[]string)(unsafe.Pointer(&in.ServerCertSANs))
	out.PeerCertSANs = *(*[]string)(unsafe.Pointer(&in.PeerCertSANs))
	return nil
}

// Convert_v1beta4_LocalEtcd_To_kubeadm_LocalEtcd is an autogenerated conversion function.

// `advertise address` and localhost are included in the SAN since this is the interfaces the etcd static pod listens on.
// The user can override the listen address with `Etcd.ExtraArgs` and add SANs with `Etcd.ServerCertSANs`.
func GetEtcdAltNames(cfg *kubeadmapi.InitConfiguration) (*certutil.AltNames, error) {
	return getAltNames(cfg, kubeadmconstants.EtcdServerCertName)
}

	// +optional
	ExtraEnvs []EnvVar

	// ServerCertSANs sets extra Subject Alternative Names for the etcd server signing cert.
	ServerCertSANs []string
	// PeerCertSANs sets extra Subject Alternative Names for the etcd peer signing cert.
	PeerCertSANs []string
}

//	  local:
//	    imageRepository: "registry.k8s.io"
//	    imageTag: "3.2.24"
//	    dataDir: "/var/lib/etcd"
//	    extraArgs:
//	      listen-client-urls: "http://10.100.0.1:2379"
//	    serverCertSANs:
//	    -  "ec2-10-100-0-1.compute-1.amazonaws.com"
//	    peerCertSANs:
//	    - "10.100.0.1"
//	  # external:
//	    # endpoints:
//	    # - "10.100.0.1:2379"
//	    # - "10.100.0.2:2379"

		return allErrs
	}
	if e.Local != nil {
		allErrs = append(allErrs, ValidateAbsolutePath(e.Local.DataDir, localPath.Child("dataDir"))...)
		allErrs = append(allErrs, ValidateCertSANs(e.Local.ServerCertSANs, localPath.Child("serverCertSANs"))...)
		allErrs = append(allErrs, ValidateCertSANs(e.Local.PeerCertSANs, localPath.Child("peerCertSANs"))...)
		if len(e.Local.ImageRepository) > 0 {