Refactor service-proxy-name label

cmd/kube-proxy/app/BUILD

@@ -22,6 +22,7 @@ go_library(
         "//pkg/kubelet/qos:go_default_library",
         "//pkg/master/ports:go_default_library",
         "//pkg/proxy:go_default_library",
+        "//pkg/proxy/apis:go_default_library",
         "//pkg/proxy/apis/config:go_default_library",
         "//pkg/proxy/apis/config/scheme:go_default_library",
         "//pkg/proxy/apis/config/validation:go_default_library",

cmd/kube-proxy/app/server.go

@@ -53,6 +53,7 @@ import (
 	"k8s.io/kubernetes/pkg/kubelet/qos"
 	"k8s.io/kubernetes/pkg/master/ports"
 	"k8s.io/kubernetes/pkg/proxy"
+	"k8s.io/kubernetes/pkg/proxy/apis"
 	kubeproxyconfig "k8s.io/kubernetes/pkg/proxy/apis/config"
 	"k8s.io/kubernetes/pkg/proxy/apis/config/scheme"
 	"k8s.io/kubernetes/pkg/proxy/apis/config/validation"
@@ -583,7 +584,7 @@ func (s *ProxyServer) Run() error {
 
 	informerFactory := informers.NewSharedInformerFactoryWithOptions(s.Client, s.ConfigSyncPeriod,
 		informers.WithTweakListOptions(func(options *v1meta.ListOptions) {
-			options.LabelSelector = "!service.kubernetes.io/service-proxy-name"
+			options.LabelSelector = "!" + apis.LabelServiceProxyName
 		}))
 
 	// Create configs (i.e. Watches for Services and Endpoints)

pkg/proxy/BUILD

@@ -38,7 +38,7 @@ filegroup(
     name = "all-srcs",
     srcs = [
         ":package-srcs",
-        "//pkg/proxy/apis/config:all-srcs",
+        "//pkg/proxy/apis:all-srcs",
         "//pkg/proxy/config:all-srcs",
         "//pkg/proxy/healthcheck:all-srcs",
         "//pkg/proxy/iptables:all-srcs",

pkg/proxy/apis/BUILD

+package(default_visibility = ["//visibility:public"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = ["well_known_labels.go"],
+    importpath = "k8s.io/kubernetes/pkg/proxy/apis",
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [
+        ":package-srcs",
+        "//pkg/proxy/apis/config:all-srcs",
+    ],
+    tags = ["automanaged"],
+)

pkg/proxy/apis/well_known_labels.go

+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package apis
+
+const (
+	// LabelServiceProxyName indicates that an alternative service
+	// proxy will implement this Service.
+	LabelServiceProxyName = "service.kubernetes.io/service-proxy-name"
+)