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a3d5e55982
- Update the markcontrolplane phase used by init and join to only label the nodes with the new control plane label. - Cleanup TODOs about the old label. - Remove outdated comment about selfhosting in staticpod/utils.go. Selfhosting has not been supported in kubeadm for a while and the comment also mentions the "master" label. - Update unit tests.
76 lines
2.0 KiB
Go
76 lines
2.0 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package markcontrolplane
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import (
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"fmt"
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v1 "k8s.io/api/core/v1"
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clientset "k8s.io/client-go/kubernetes"
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"k8s.io/kubernetes/cmd/kubeadm/app/constants"
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"k8s.io/kubernetes/cmd/kubeadm/app/util/apiclient"
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)
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// labelsToAdd holds a list of labels that are applied on kubeadm managed control plane nodes
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var labelsToAdd = []string{
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constants.LabelNodeRoleControlPlane,
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constants.LabelExcludeFromExternalLB,
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}
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// MarkControlPlane taints the control-plane and sets the control-plane label
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func MarkControlPlane(client clientset.Interface, controlPlaneName string, taints []v1.Taint) error {
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fmt.Printf("[mark-control-plane] Marking the node %s as control-plane by adding the labels: %v\n",
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controlPlaneName, labelsToAdd)
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if len(taints) > 0 {
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taintStrs := []string{}
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for _, taint := range taints {
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taintStrs = append(taintStrs, taint.ToString())
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}
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fmt.Printf("[mark-control-plane] Marking the node %s as control-plane by adding the taints %v\n", controlPlaneName, taintStrs)
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}
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return apiclient.PatchNode(client, controlPlaneName, func(n *v1.Node) {
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markControlPlaneNode(n, taints)
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})
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}
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func taintExists(taint v1.Taint, taints []v1.Taint) bool {
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for _, t := range taints {
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if t == taint {
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return true
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}
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}
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return false
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}
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func markControlPlaneNode(n *v1.Node, taints []v1.Taint) {
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for _, label := range labelsToAdd {
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n.ObjectMeta.Labels[label] = ""
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}
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for _, nt := range n.Spec.Taints {
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if !taintExists(nt, taints) {
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taints = append(taints, nt)
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}
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}
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n.Spec.Taints = taints
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}
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