Define ESIPP GA fields and deprecate alpha annotations

pkg/api/service/annotations.go

@@ -26,25 +26,19 @@ const (
 	// Not all cloud providers support this annotation, though AWS & GCE do.
 	AnnotationLoadBalancerSourceRangesKey = "service.beta.kubernetes.io/load-balancer-source-ranges"
 
-	// AnnotationValueExternalTrafficLocal Value of annotation to specify local endpoints behaviour
+	// AnnotationValueExternalTrafficLocal Value of annotation to specify local endpoints behavior.
 	AnnotationValueExternalTrafficLocal = "OnlyLocal"
-	// AnnotationValueExternalTrafficGlobal Value of annotation to specify global (legacy) behaviour
+	// AnnotationValueExternalTrafficGlobal Value of annotation to specify global (legacy) behavior.
 	AnnotationValueExternalTrafficGlobal = "Global"
 
-	// TODO: The alpha annotations have been deprecated, remove them when we move this feature to GA.
+	// TODO: The beta annotations have been deprecated, remove them when we release k8s 1.8.
 
-	// AlphaAnnotationHealthCheckNodePort Annotation specifying the healthcheck nodePort for the service
-	// If not specified, annotation is created by the service api backend with the allocated nodePort
-	// Will use user-specified nodePort value if specified by the client
-	AlphaAnnotationHealthCheckNodePort = "service.alpha.kubernetes.io/healthcheck-nodeport"
-
-	// AlphaAnnotationExternalTraffic An annotation that denotes if this Service desires to route external traffic to local
-	// endpoints only. This preserves Source IP and avoids a second hop.
-	AlphaAnnotationExternalTraffic = "service.alpha.kubernetes.io/external-traffic"
-
-	// BetaAnnotationHealthCheckNodePort is the beta version of AlphaAnnotationHealthCheckNodePort.
+	// BetaAnnotationHealthCheckNodePort Annotation specifying the healthcheck nodePort for the service.
+	// If not specified, annotation is created by the service api backend with the allocated nodePort.
+	// Will use user-specified nodePort value if specified by the client.
 	BetaAnnotationHealthCheckNodePort = "service.beta.kubernetes.io/healthcheck-nodeport"
 
-	// BetaAnnotationExternalTraffic is the beta version of AlphaAnnotationExternalTraffic.
+	// BetaAnnotationExternalTraffic An annotation that denotes if this Service desires to route
+	// external traffic to local endpoints only. This preserves Source IP and avoids a second hop.
 	BetaAnnotationExternalTraffic = "service.beta.kubernetes.io/external-traffic"
 )

pkg/api/types.go

@@ -2453,6 +2453,16 @@ const (
 	ServiceTypeExternalName ServiceType = "ExternalName"
 )
 
+// Service External Traffic Policy Type string
+type ServiceExternalTrafficPolicyType string
+
+const (
+	// ServiceExternalTrafficPolicyTypeLocal specifies local endpoints behavior.
+	ServiceExternalTrafficPolicyTypeLocal ServiceExternalTrafficPolicyType = "Local"
+	// ServiceExternalTrafficPolicyTypeGlobal specifies global (legacy) behavior.
+	ServiceExternalTrafficPolicyTypeGlobal ServiceExternalTrafficPolicyType = "Global"
+)
+
 // ServiceStatus represents the current status of a service
 type ServiceStatus struct {
 	// LoadBalancer contains the current status of the load-balancer,
@@ -2552,6 +2562,20 @@ type ServiceSpec struct {
 	// cloud-provider does not support the feature."
 	// +optional
 	LoadBalancerSourceRanges []string
+
+	// externalTrafficPolicy denotes if this Service desires to route external traffic to
+	// local endpoints only. This preserves Source IP and avoids a second hop for
+	// LoadBalancer and Nodeport type services.
+	// +optional
+	ExternalTrafficPolicy ServiceExternalTrafficPolicyType
+
+	// healthCheckNodePort specifies the healthcheck nodePort for the service.
+	// If not specified, HealthCheckNodePort is created by the service api
+	// backend with the allocated nodePort. Will use user-specified nodePort value
+	// if specified by the client. Only effects when Type is set to LoadBalancer
+	// and ExternalTrafficPolicy is set to Local.
+	// +optional
+	HealthCheckNodePort int32
 }
 
 type ServicePort struct {

pkg/api/v1/service/annotations.go

@@ -26,25 +26,19 @@ const (
 	// Not all cloud providers support this annotation, though AWS & GCE do.
 	AnnotationLoadBalancerSourceRangesKey = "service.beta.kubernetes.io/load-balancer-source-ranges"
 
-	// AnnotationValueExternalTrafficLocal Value of annotation to specify local endpoints behaviour
+	// AnnotationValueExternalTrafficLocal Value of annotation to specify local endpoints behavior.
 	AnnotationValueExternalTrafficLocal = "OnlyLocal"
-	// AnnotationValueExternalTrafficGlobal Value of annotation to specify global (legacy) behaviour
+	// AnnotationValueExternalTrafficGlobal Value of annotation to specify global (legacy) behavior.
 	AnnotationValueExternalTrafficGlobal = "Global"
 
-	// TODO: The alpha annotations have been deprecated, remove them when we move this feature to GA.
+	// TODO: The beta annotations have been deprecated, remove them when we release k8s 1.8.
 
-	// AlphaAnnotationHealthCheckNodePort Annotation specifying the healthcheck nodePort for the service
-	// If not specified, annotation is created by the service api backend with the allocated nodePort
-	// Will use user-specified nodePort value if specified by the client
-	AlphaAnnotationHealthCheckNodePort = "service.alpha.kubernetes.io/healthcheck-nodeport"
-
-	// AlphaAnnotationExternalTraffic An annotation that denotes if this Service desires to route external traffic to local
-	// endpoints only. This preserves Source IP and avoids a second hop.
-	AlphaAnnotationExternalTraffic = "service.alpha.kubernetes.io/external-traffic"
-
-	// BetaAnnotationHealthCheckNodePort is the beta version of AlphaAnnotationHealthCheckNodePort.
+	// BetaAnnotationHealthCheckNodePort Annotation specifying the healthcheck nodePort for the service.
+	// If not specified, annotation is created by the service api backend with the allocated nodePort.
+	// Will use user-specified nodePort value if specified by the client.
 	BetaAnnotationHealthCheckNodePort = "service.beta.kubernetes.io/healthcheck-nodeport"
 
-	// BetaAnnotationExternalTraffic is the beta version of AlphaAnnotationExternalTraffic.
+	// BetaAnnotationExternalTraffic An annotation that denotes if this Service desires to route
+	// external traffic to local endpoints only. This preserves Source IP and avoids a second hop.
 	BetaAnnotationExternalTraffic = "service.beta.kubernetes.io/external-traffic"
 )

pkg/api/v1/types.go

@@ -2792,6 +2792,16 @@ const (
 	ServiceTypeExternalName ServiceType = "ExternalName"
 )
 
+// Service External Traffic Policy Type string
+type ServiceExternalTrafficPolicyType string
+
+const (
+	// ServiceExternalTrafficPolicyTypeLocal specifies local endpoints behavior.
+	ServiceExternalTrafficPolicyTypeLocal ServiceExternalTrafficPolicyType = "Local"
+	// ServiceExternalTrafficPolicyTypeGlobal specifies global (legacy) behavior.
+	ServiceExternalTrafficPolicyTypeGlobal ServiceExternalTrafficPolicyType = "Global"
+)
+
 // ServiceStatus represents the current status of a service.
 type ServiceStatus struct {
 	// LoadBalancer contains the current status of the load-balancer,
@@ -2904,6 +2914,20 @@ type ServiceSpec struct {
 	// Must be a valid DNS name and requires Type to be ExternalName.
 	// +optional
 	ExternalName string `json:"externalName,omitempty" protobuf:"bytes,10,opt,name=externalName"`
+
+	// externalTrafficPolicy denotes if this Service desires to route external traffic to
+	// local endpoints only. This preserves Source IP and avoids a second hop for
+	// LoadBalancer and Nodeport type services.
+	// +optional
+	ExternalTrafficPolicy ServiceExternalTrafficPolicyType `json:"externalTrafficPolicy,omitempty" protobuf:"bytes,11,opt,name=externalTrafficPolicy"`
+
+	// healthCheckNodePort specifies the healthcheck nodePort for the service.
+	// If not specified, HealthCheckNodePort is created by the service api
+	// backend with the allocated nodePort. Will use user-specified nodePort value
+	// if specified by the client. Only effects when Type is set to LoadBalancer
+	// and ExternalTrafficPolicy is set to Local.
+	// +optional
+	HealthCheckNodePort int32 `json:"healthCheckNodePort,omitempty" protobuf:"bytes,12,opt,name=healthCheckNodePort"`
 }
 
 // ServicePort contains information on service's port.

pkg/features/kube_features.go

@@ -98,7 +98,7 @@ func init() {
 // To add a new feature, define a key for it above and add it here. The features will be
 // available throughout Kubernetes binaries.
 var defaultKubernetesFeatureGates = map[utilfeature.Feature]utilfeature.FeatureSpec{
-	ExternalTrafficLocalOnly:                    {Default: true, PreRelease: utilfeature.Beta},
+	ExternalTrafficLocalOnly:                    {Default: true, PreRelease: utilfeature.GA},
 	AppArmor:                                    {Default: true, PreRelease: utilfeature.Beta},
 	DynamicKubeletConfig:                        {Default: false, PreRelease: utilfeature.Alpha},
 	DynamicVolumeProvisioning:                   {Default: true, PreRelease: utilfeature.Alpha},