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

	ExtraVolumes []HostPathMount `json:"extraVolumes,omitempty"`

	// ExtraEnvs is an extra set of environment variables to pass to the control plane component.
	// Environment variables passed using ExtraEnvs will override any existing environment variables, or *_proxy environment variables that kubeadm adds by default.
	// +optional
	ExtraEnvs []EnvVar `json:"extraEnvs,omitempty"`
}

//
//   - TODO https://github.com/kubernetes/kubeadm/issues/2890
//   - Support custom environment variables in control plane components under `ClusterConfiguration`.
//     Use `APIServer.ExtraEnvs`, `ControllerManager.ExtraEnvs`, `Scheduler.ExtraEnvs`, `Etcd.Local.ExtraEnvs`.
//   - The ResetConfiguration API type is now supported in v1beta4. Users are able to reset a node by passing a --config file to "kubeadm reset".

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

	ExtraVolumes []HostPathMount

	// ExtraEnvs is an extra set of environment variables to pass to the control plane component.
	// Environment variables passed using ExtraEnvs will override any existing environment variables, or *_proxy environment variables that kubeadm adds by default.
	// +optional
	ExtraEnvs []EnvVar
}

			Resources:       staticpodutil.ComponentResources("250m"),
			Env:             kubeadmutil.MergeKubeadmEnvVars(proxyEnvs, cfg.APIServer.ExtraEnvs),
		}, mounts.GetVolumes(kubeadmconstants.KubeAPIServer),
			map[string]string{kubeadmconstants.KubeAPIServerAdvertiseAddressEndpointAnnotationKey: endpoint.String()}),

	out.ExtraVolumes = *(*[]HostPathMount)(unsafe.Pointer(&in.ExtraVolumes))
	// WARNING: in.ExtraEnvs requires manual conversion: does not exist in peer-type
	return nil
}

func autoConvert_v1beta3_DNS_To_kubeadm_DNS(in *DNS, out *kubeadm.DNS, s conversion.Scope) error {

			StartupProbe:   staticpodutil.StartupProbe(probeHostname, "/readyz", probePort, probeScheme, componentHealthCheckTimeout),
			Env:            kubeadmutil.MergeKubeadmEnvVars(cfg.Etcd.Local.ExtraEnvs),
		},
		etcdMounts,
		// etcd will listen on the advertise address of the API server, in a different port (2379)
		map[string]string{kubeadmconstants.EtcdAdvertiseClientUrlsAnnotationKey: etcdutil.GetClientURL(endpoint)},

	// Creates a ClusterConfiguration
	cfg := &kubeadmapi.ClusterConfiguration{
		KubernetesVersion: "v1.7.0",
		Etcd: kubeadmapi.Etcd{
			Local: &kubeadmapi.LocalEtcd{
				DataDir: "/var/lib/etcd",
				ExtraEnvs: []kubeadmapi.EnvVar{
					{
						EnvVar: v1.EnvVar{Name: "Foo", Value: "Bar"},
					},
				},
			},
		},
	}
	endpoint := &kubeadmapi.APIEndpoint{}

	// Executes GetEtcdPodSpec

func TestGetStaticPodSpecs(t *testing.T) {

	// Creates a Cluster Configuration
	cfg := &kubeadmapi.ClusterConfiguration{
		KubernetesVersion: "v1.9.0",
		Scheduler: kubeadmapi.ControlPlaneComponent{ExtraEnvs: []kubeadmapi.EnvVar{
			{
				EnvVar: v1.EnvVar{Name: "Foo", Value: "Bar"},
			},
		}},
	}

	// Executes GetStaticPodSpecs
	specs := GetStaticPodSpecs(cfg, &kubeadmapi.APIEndpoint{}, []kubeadmapi.EnvVar{})