67 lines
1.8 KiB
Go
67 lines
1.8 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 markmaster
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import (
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"fmt"
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"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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// MarkMaster taints the master and sets the master label
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func MarkMaster(client clientset.Interface, masterName string, taints []v1.Taint) error {
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fmt.Printf("[markmaster] Marking the node %s as master by adding the label \"%s=''\"\n", masterName, constants.LabelNodeRoleMaster)
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if taints != nil && 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("[markmaster] Marking the node %s as master by adding the taints %v\n", masterName, taintStrs)
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}
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return apiclient.PatchNode(client, masterName, func(n *v1.Node) {
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markMasterNode(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 markMasterNode(n *v1.Node, taints []v1.Taint) {
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n.ObjectMeta.Labels[constants.LabelNodeRoleMaster] = ""
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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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