Services. \n Support: Core (Services with
                                            a type other than ExternalName) \n Support:
                                            Implementation-specific (Services with
                                            type ExternalName)"
                                          maxLength: 63

  // (if supported in the current cloud) which routes to the same endpoints
  // as the clusterIP.
  // "ExternalName" aliases this service to the specified externalName.
  // Several other fields do not apply to ExternalName services.
  // More info: https://kubernetes.io/docs/concepts/services-networking/service/#publishing-services-service-types
  // +optional
  optional string type = 4;

	"externalIPs":                   "externalIPs is a list of IP addresses...

  // (if supported in the current cloud) which routes to the same endpoints
  // as the clusterIP.
  // "ExternalName" aliases this service to the specified externalName.
  // Several other fields do not apply to ExternalName services.
  // More info: https://kubernetes.io/docs/concepts/services-networking/service/#publishing-services-service-types
  // +optional
  optional string type = 4;

	// externalName is the external reference that discovery mechanisms will
	// return as an alias for this service (e.g. a DNS CNAME record). No
	// proxying will be involved.  Must be a lowercase RFC-1123 hostname
	// (https://tools.ietf.org/html/rfc1123) and requires `type` to be "ExternalName".
	// +optional
	ExternalName string `json:"externalName,omitempty" protobuf:"bytes,10,opt,name=externalName"`

			defer storage.Store.DestroyFunc()

			for _, itc := range otc.cases {
				t.Run(itc.name, func(t *testing.T) {
					// This test is ONLY ExternalName services.
					itc.svc.Spec.Type = api.ServiceTypeExternalName
					itc.svc.Spec.ExternalName = "example.com"

					ctx := genericapirequest.NewDefaultContext()

type ServiceSpec struct {
	// Type determines how the Service is exposed. Defaults to ClusterIP. Valid
	// options are ExternalName, ClusterIP, NodePort, and LoadBalancer.
	// "ExternalName" maps to the specified externalName.
	// "ClusterIP" allocates a cluster-internal IP address for load-balancing to
	// endpoints. Endpoints are determined by the selector or if that is not

		}

		// The value (a CNAME) may have a trailing dot to denote it as fully qualified
		cname := strings.TrimSuffix(service.Spec.ExternalName, ".")
		if len(cname) > 0 {
			allErrs = append(allErrs, ValidateDNS1123Subdomain(cname, specPath.Child("externalName"))...)
		} else {
			allErrs = append(allErrs, field.Required(specPath.Child("externalName"), ""))
		}
	}

- kube-proxy: os exit when CleanupAndExit is set to true ([#76732](https://github.com/kubernetes/kubernetes/pull/76732), [@JieJhih](https://github.com/JieJhih))
- Kubernetes will now allow trailing dots in the externalName of Services of type ExternalName. ([#78385](https://github.com/kubernetes/kubernetes/pull/78385), [@thz](https://github.com/thz))

### Node

	out.SessionAffinity = core.ServiceAffinity(in.SessionAffinity)
	out.LoadBalancerIP = in.LoadBalancerIP
	out.LoadBalancerSourceRanges = *(*[]string)(unsafe.Pointer(&in.LoadBalancerSourceRanges))
	out.ExternalName = in.ExternalName
	out.ExternalTrafficPolicy = core.ServiceExternalTrafficPolicy(in.ExternalTrafficPolicy)
	out.HealthCheckNodePort = in.HealthCheckNodePort
	out.PublishNotReadyAddresses = in.PublishNotReadyAddresses