func EtcdDeployment(opts *AssetOpts, hostPath string) *apps.Deployment {
	cpu := resource.MustParse(opts.EtcdCPURequest)
	mem := resource.MustParse(opts.EtcdMemRequest)
	var volumes []v1.Volume
	if hostPath == "" {
		volumes = []v1.Volume{
			{
				Name: "etcd-storage",
				VolumeSource: v1.VolumeSource{
					PersistentVolumeClaim: &v1.PersistentVolumeClaimVolumeSource{
						ClaimName: etcdVolumeClaimName,
					},
				},
			},
		}
	} else {
		volumes = []v1.Volume{
			{
				Name: "etcd-storage",
				VolumeSource: v1.VolumeSource{
					HostPath: &v1.HostPathVolumeSource{
						Path: filepath.Join(hostPath, "etcd"),
					},
				},
			},
		}
	}
	resourceRequirements := v1.ResourceRequirements{
		Requests: v1.ResourceList{
			v1.ResourceCPU:    cpu,
			v1.ResourceMemory: mem,
		},
	}
	if !opts.NoGuaranteed {
		resourceRequirements.Limits = v1.ResourceList{
			v1.ResourceCPU:    cpu,
			v1.ResourceMemory: mem,
		}
	}
	// Don't want to strip the registry out of etcdImage since it's from quay
	// not docker hub.
	image := etcdImage
	if opts.Registry != "" {
		image = AddRegistry(opts.Registry, etcdImage)
	}
	return &apps.Deployment{
		TypeMeta: metav1.TypeMeta{
			Kind:       "Deployment",
			APIVersion: "apps/v1beta1",
		},
		ObjectMeta: objectMeta(etcdName, labels(etcdName), nil, opts.Namespace),
		Spec: apps.DeploymentSpec{
			Replicas: replicas(1),
			Selector: &metav1.LabelSelector{
				MatchLabels: labels(etcdName),
			},
			Template: v1.PodTemplateSpec{
				ObjectMeta: objectMeta(etcdName, labels(etcdName), nil, opts.Namespace),
				Spec: v1.PodSpec{
					Containers: []v1.Container{
						{
							Name:  etcdName,
							Image: image,
							//TODO figure out how to get a cluster of these to talk to each other
							Command: etcdCmd,
							Ports: []v1.ContainerPort{
								{
									ContainerPort: 2379,
									Name:          "client-port",
								},
								{
									ContainerPort: 2380,
									Name:          "peer-port",
								},
							},
							VolumeMounts: []v1.VolumeMount{
								{
									Name:      "etcd-storage",
									MountPath: "/var/data/etcd",
								},
							},
							ImagePullPolicy: "IfNotPresent",
							Resources:       resourceRequirements,
						},
					},
					Volumes:          volumes,
					ImagePullSecrets: imagePullSecrets(opts),
				},
			},
		},
	}
}
func EtcdDeployment(opts *AssetOpts, hostPath string) *apps.Deployment {
	cpu := resource.MustParse(opts.EtcdCPURequest)
	mem := resource.MustParse(opts.EtcdMemRequest)
	var volumes []v1.Volume
	if hostPath == "" {
		volumes = []v1.Volume{
			{
				Name: "etcd-storage",
				VolumeSource: v1.VolumeSource{
					PersistentVolumeClaim: &v1.PersistentVolumeClaimVolumeSource{
						ClaimName: etcdVolumeClaimName,
					},
				},
			},
		}
	} else {
		volumes = []v1.Volume{
			{
				Name: "etcd-storage",
				VolumeSource: v1.VolumeSource{
					HostPath: &v1.HostPathVolumeSource{
						Path: filepath.Join(hostPath, "etcd"),
					},
				},
			},
		}
	}
	resourceRequirements := v1.ResourceRequirements{
		Requests: v1.ResourceList{
			v1.ResourceCPU:    cpu,
			v1.ResourceMemory: mem,
		},
	}
	if !opts.NoGuaranteed {
		resourceRequirements.Limits = v1.ResourceList{
			v1.ResourceCPU:    cpu,
			v1.ResourceMemory: mem,
		}
	}
	// Don't want to strip the registry out of etcdImage since it's from quay
	// not docker hub.
	image := etcdImage
	if opts.Registry != "" {
		image = AddRegistry(opts.Registry, etcdImage)
	}
	return &apps.Deployment{
		TypeMeta: metav1.TypeMeta{
			Kind:       "Deployment",
			APIVersion: "apps/v1beta1",
		},
		ObjectMeta: objectMeta(etcdName, labels(etcdName), nil, opts.Namespace),
		Spec: apps.DeploymentSpec{
			Replicas: replicas(1),
			Selector: &metav1.LabelSelector{
				MatchLabels: labels(etcdName),
			},
			Template: v1.PodTemplateSpec{
				ObjectMeta: objectMeta(etcdName, labels(etcdName), nil, opts.Namespace),
				Spec: v1.PodSpec{
					Containers: []v1.Container{
						{
							Name:  etcdName,
							Image: image,
							//TODO figure out how to get a cluster of these to talk to each other
							Command: etcdCmd,
							Ports: []v1.ContainerPort{
								{
									ContainerPort: 2379,
									Name:          "client-port",
								},
								{
									ContainerPort: 2380,
									Name:          "peer-port",
								},
							},
							VolumeMounts: []v1.VolumeMount{
								{
									Name:      "etcd-storage",
									MountPath: "/var/data/etcd",
								},
							},
							ImagePullPolicy: "IfNotPresent",
							Resources:       resourceRequirements,
						},
					},
					Volumes:          volumes,
					ImagePullSecrets: imagePullSecrets(opts),
				},
			},
		},
	}
}
// EtcdDeployment returns an etcd k8s Deployment.