kubernetes markcontrolplane 源码

2022-09-18
浏览 (508)

kubernetes markcontrolplane 代码

文件路径：/cmd/kubeadm/app/phases/markcontrolplane/markcontrolplane.go

/*
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 markcontrolplane

import (
	"fmt"

	v1 "k8s.io/api/core/v1"
	clientset "k8s.io/client-go/kubernetes"

	"k8s.io/kubernetes/cmd/kubeadm/app/constants"
	"k8s.io/kubernetes/cmd/kubeadm/app/util/apiclient"
)

// labelsToAdd holds a list of labels that are applied on kubeadm managed control plane nodes
var labelsToAdd = []string{
	constants.LabelNodeRoleControlPlane,
	constants.LabelExcludeFromExternalLB,
}

// MarkControlPlane taints the control-plane and sets the control-plane label
func MarkControlPlane(client clientset.Interface, controlPlaneName string, taints []v1.Taint) error {
	fmt.Printf("[mark-control-plane] Marking the node %s as control-plane by adding the labels: %v\n",
		controlPlaneName, labelsToAdd)

	if len(taints) > 0 {
		taintStrs := []string{}
		for _, taint := range taints {
			taintStrs = append(taintStrs, taint.ToString())
		}
		fmt.Printf("[mark-control-plane] Marking the node %s as control-plane by adding the taints %v\n", controlPlaneName, taintStrs)
	}

	return apiclient.PatchNode(client, controlPlaneName, func(n *v1.Node) {
		markControlPlaneNode(n, taints)
	})
}

func taintExists(taint v1.Taint, taints []v1.Taint) bool {
	for _, t := range taints {
		if t == taint {
			return true
		}
	}

	return false
}

func markControlPlaneNode(n *v1.Node, taints []v1.Taint) {
	for _, label := range labelsToAdd {
		n.ObjectMeta.Labels[label] = ""
	}

	for _, nt := range n.Spec.Taints {
		if !taintExists(nt, taints) {
			taints = append(taints, nt)
		}
	}

	n.Spec.Taints = taints
}

相关信息

kubernetes 源码目录

相关文章

kubernetes markcontrolplane_test 源码

0 赞

所属分类： 后端技术
本文标签： golang docker
版权声明： 原创文章如转载，请注明本文链接: https://www.seaxiang.com/blog/72bd0e06412a4e9bba2b785326373e81

热门推荐

1、直接访问google.com
2、 - 优质文章
3、 gate.io
4、 harmony 鸿蒙hdc使用指导
5、 harmony 鸿蒙初识ArkTS语言
6、 harmony 鸿蒙ArkUI组件（ArkTS）开发常见问题
7、 flink kafka connector scan.startup.mode 的几个选项
8、 golang
9、 openharmony
10、 Vue中input框自动聚焦

Loading...