Remove old node role label that is not used by kubeadm

cmd/kubeadm/app/apis/kubeadm/BUILD

@@ -14,7 +14,6 @@ go_library(
         "env.go",
         "register.go",
         "types.go",
-        "well_known_labels.go",
     ],
     tags = ["automanaged"],
     deps = [

cmd/kubeadm/app/apis/kubeadm/well_known_labels.go

@@ -1,43 +0,0 @@
-/*
-Copyright 2017 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 kubeadm
-
-// Role labels are applied to Nodes to mark their purpose.  In particular, we
-// usually want to distinguish the master, so that we can isolate privileged
-// pods and operations.
-//
-// Originally we relied on not registering the master, on the fact that the
-// master was Unschedulable, and on static manifests for master components.
-// But we now do register masters in many environments, are generally moving
-// away from static manifests (for better manageability), and working towards
-// deprecating the unschedulable field (replacing it with taints & tolerations
-// instead).
-//
-// Even with tainting, a label remains the easiest way of making a positive
-// selection, so that pods can schedule only to master nodes for example, and
-// thus installations will likely define a label for their master nodes.
-//
-// So that we can recognize master nodes in consequent places though (such as
-// kubectl get nodes), we encourage installations to use the well-known labels.
-// We define NodeLabelRole, which is the preferred form, but we will also recognize
-// other forms that are known to be in widespread use (NodeLabelKubeadmAlphaRole).
-
-const (
-	// NodeLabelKubeadmAlphaRole is a label that kubeadm applies to a Node as a hint that it has a particular purpose.
-	// Use of NodeLabelRole is preferred.
-	NodeLabelKubeadmAlphaRole = "kubeadm.alpha.kubernetes.io/role"
-)

pkg/printers/internalversion/BUILD

@@ -59,7 +59,6 @@ go_library(
     ],
     tags = ["automanaged"],
     deps = [
-        "//cmd/kubeadm/app/apis/kubeadm:go_default_library",
         "//federation/apis/federation:go_default_library",
         "//federation/client/clientset_generated/federation_internalclientset:go_default_library",
         "//pkg/api:go_default_library",

pkg/printers/internalversion/describe.go

@@ -2360,7 +2360,6 @@ func describeNode(node *api.Node, nodeNonTerminatedPodsList *api.PodList, events
 	return tabbedString(func(out io.Writer) error {
 		w := NewPrefixWriter(out)
 		w.Write(LEVEL_0, "Name:\t%s\n", node.Name)
-		w.Write(LEVEL_0, "Role:\t%s\n", findNodeRole(node))
 		printLabelsMultiline(w, "Labels", node.Labels)
 		printAnnotationsMultiline(w, "Annotations", node.Annotations)
 		printNodeTaintsMultiline(w, "Taints", node.Spec.Taints)

pkg/printers/internalversion/printers.go

@@ -32,7 +32,6 @@ import (
 	"k8s.io/apimachinery/pkg/labels"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/util/sets"
-	"k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
 	"k8s.io/kubernetes/federation/apis/federation"
 	"k8s.io/kubernetes/pkg/api"
 	"k8s.io/kubernetes/pkg/api/events"
@@ -1112,10 +1111,6 @@ func printNode(node *api.Node, w io.Writer, options printers.PrintOptions) error
 	if node.Spec.Unschedulable {
 		status = append(status, "SchedulingDisabled")
 	}
-	role := findNodeRole(node)
-	if role != "" {
-		status = append(status, role)
-	}
 
 	if _, err := fmt.Fprintf(w, "%s\t%s\t%s\t%s", name, strings.Join(status, ","), translateTimestamp(node.CreationTimestamp), node.Status.NodeInfo.KubeletVersion); err != nil {
 		return err
@@ -1155,19 +1150,6 @@ func getNodeExternalIP(node *api.Node) string {
 	return "<none>"
 }
 
-// findNodeRole returns the role of a given node, or "" if none found.
-// The role is determined by looking in order for:
-// * a kubernetes.io/role label
-// * a kubeadm.alpha.kubernetes.io/role label
-// If no role is found, ("", nil) is returned
-func findNodeRole(node *api.Node) string {
-	if role := node.Labels[kubeadm.NodeLabelKubeadmAlphaRole]; role != "" {
-		return role
-	}
-	// No role found
-	return ""
-}
-
 func printNodeList(list *api.NodeList, w io.Writer, options printers.PrintOptions) error {
 	for _, node := range list.Items {
 		if err := printNode(&node, w, options); err != nil {

pkg/printers/internalversion/printers_test.go

@@ -704,16 +704,6 @@ func TestPrintNodeStatus(t *testing.T) {
 			},
 			status: "Unknown,SchedulingDisabled",
 		},
-		{
-			node: api.Node{
-				ObjectMeta: metav1.ObjectMeta{
-					Name:   "foo12",
-					Labels: map[string]string{"kubeadm.alpha.kubernetes.io/role": "node"},
-				},
-				Status: api.NodeStatus{Conditions: []api.NodeCondition{{Type: api.NodeReady, Status: api.ConditionTrue}}},
-			},
-			status: "Ready,node",
-		},
 	}
 
 	for _, test := range table {