【k8s多集群管理平台开发实践】七、clint-go实现configmap的列表、创建configmap、yaml配置的编辑
通过client-go实现configmap的列表显示、界面创建configmap,读取yaml配置并更改。功能主要有后端部分：控制器代码、模型部分代码、路由配置。前端部分：configmapList.html的html代码，configmapCreate.html，configmapYaml.html这几部分代码组成。
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文章目录
简介
本章节主要讲解通过client-go实现configmap的列表显示、界面创建configmap,读取yaml配置并更改。功能主要有后端部分：控制器代码、模型部分代码、路由配置。前端部分：configmapList.html的html代码，configmapCreate.html，configmapYaml.html这几部分代码组成。
一.configmap的列表实现
1.1.controllers控制器代码
该列表支持传递集群ID、命名空间、configmap名称来进行过滤查询
func (this *ConfigMapController) List() {
clusterId := this.GetString("clusterId")
nameSpace := this.GetString("nameSpace")
configmapName := this.GetString("configmapName")
labels := this.GetString("labels")
labelsKV := strings.Split(labels, ":")
var labelsKey, labelsValue string
if len(labelsKV) == 2 {
labelsKey = labelsKV[0]
labelsValue = labelsKV[1]
}
cmList, err := m.CmList(clusterId, nameSpace, configmapName, labelsKey, labelsValue)
msg := "success"
code := 0
count := len(cmList)
if err != nil {
log.Println(err)
msg = err.Error()
code = -1
}
this.Data["json"] = &map[string]interface{}{"code": code, "msg": msg, "count": count, "data": &cmList}
this.ServeJSON()
}
1.2.models模型代码
先定义configmap的实例信息结构体和存储数据的key-value的结构体，并通过传递的集群ID、命名空间、标签等信息过滤，调用
clientset.CoreV1().ConfigMaps(namespace).List函数读取列表，并赋值到Configmap结构体并追加到结构体数组var bbb = make([]Configmap, 0)
//定义configmap中信息的结构体
type Configmap struct {
ConfigmapName string `json:"configmapName"`
NameSpace string `json:"nameSpace"`
Labels string `json:"labels"`
CreateTime string `json:"createTime"`
Data []Cmkv `json:"data"`
}
//定义configmap中存储的数据的key-value数据结构体
type Cmkv struct {
Key string `json:"key"`
Value string `json:"value"`
}
func CmList(kubeconfig, namespace, configmapName string, labelsKey, labelsValue string) ([]Configmap, error) {
clientset := common.ClientSet(kubeconfig)
if namespace == "" {
//namespace = corev1.NamespaceDefault
namespace = corev1.NamespaceAll
}
//设置标签的ListOptions
var listOptions = metav1.ListOptions{}
if labelsKey != "" && labelsValue != "" {
listOptions = metav1.ListOptions{
LabelSelector: fmt.Sprintf("%s=%s", labelsKey, labelsValue),
}
}
//读取api数据并返回configmap的信息
cmList, err := clientset.CoreV1().ConfigMaps(namespace).List(context.TODO(), listOptions)
if err != nil {
log.Printf("list deployment error, err:%v\n", err)
}
//顶一个数组用来存放configmap的信息
var bbb = make([]Configmap, 0)
for _, cm := range cmList.Items {
//根据configmap的名称来过滤
if configmapName != "" {
if !strings.Contains(cm.Name, configmapName) {
continue
}
}
var labelsStr string
for kk, vv := range cm.ObjectMeta.Labels {
labelsStr += fmt.Sprintf("%s:%s,", kk, vv)
}
if len(labelsStr) > 0 {
labelsStr = labelsStr[0 : len(labelsStr)-1]
}
Items := &Configmap{
ConfigmapName: cm.Name,
NameSpace: cm.Namespace,
Labels: labelsStr,
CreateTime: cm.CreationTimestamp.Format("2006-01-02 15:04:05"),
}
bbb = append(bbb, *Items)
}
return bbb, err
}
二.界面创建configmap
2.1.controllers控制器代码
接收html中表单传来的数据，并传递给CmCreate函数处理。
func (this *ConfigMapController) Create() {
clusterId := this.GetString("clusterId")
code := 0
msg := "success"
err := m.CmCreate(clusterId, this.Ctx.Input.RequestBody)
if err != nil {
code = -1
msg = err.Error()
log.Printf("[ERROR] configmap Create Fail:%s\n", err)
}
this.Data["json"] = &map[string]interface{}{"code": code, "msg": msg}
this.ServeJSON()
}
2.2.models模分代码
接收控制器中Create函数传递过来的body，并进行json解析，先创建一个configmap实例
&corev1.ConfigMap,然后将解析出来的值赋值到实例中，然后通过调用clientset.CoreV1().ConfigMaps(nameSpace).Create进行创建。
func CmCreate(kubeconfig string, bodys []byte) error {
gp := gjson.ParseBytes(bodys)
clusterId := gp.Get("clusterId").String()
if kubeconfig == "" {
kubeconfig = clusterId
}
configmapName := gp.Get("configmapName").String()
nameSpace := gp.Get("nameSpace").String()
var labelsMap = make(map[string]string)
labelsMap["app"] = configmapName
for _, vv := range gp.Get("lables").Array() {
labelsMap[vv.Get("key").Str] = vv.Get("value").Str
}
var dataMap = make(map[string]string)
for _, vv := range gp.Get("configmaps").Array() {
dataMap[vv.Get("key").Str] = vv.Get("value").Str
}
cm := &corev1.ConfigMap{
ObjectMeta: metav1.ObjectMeta{
Name: configmapName,
Namespace: nameSpace,
Labels: labelsMap,
},
Data: dataMap,
}
clientset := common.ClientSet(kubeconfig)
_, err := clientset.CoreV1().ConfigMaps(nameSpace).Create(context.TODO(), cm, metav1.CreateOptions{})
if err != nil {
return err
}
return nil
}
三.读取configmap的yaml配置并更新
3.1.controllers控制器代码
两个功能：一个是读取yaml配置Yaml(),一个是更新yaml配置ModifyByYaml()。
//读取configmap的yaml配置
func (this *ConfigMapController) Yaml() {
clusterId := this.GetString("clusterId")
namespace := this.GetString("nameSpace")
configmapName := this.GetString("configmapName")
yamlStr, _ := m.GetCmYaml(clusterId, namespace, configmapName)
this.Ctx.WriteString(yamlStr)
}
//更新configmap的yaml配置
func (this *ConfigMapController) ModifyByYaml() {
clusterId := this.GetString("clusterId")
code := 0
msg := "success"
bodyByte := []byte(strings.ReplaceAll(string(this.Ctx.Input.RequestBody), "%25", "%"))
err := m.CmYamlModify(clusterId, bodyByte)
if err != nil {
code = -1
msg = err.Error()
log.Printf("[ERROR] configmap ModifyByYaml Fail:%s\n", err)
}
this.Data["json"] = &map[string]interface{}{"code": code, "msg": msg}
this.ServeJSON()
}
3.2.models模型代码
GetCmYaml通过集群ID、命名空间、configmap的名称获取实例，并进行解构然后进行序列化成yaml配置，CmYamlModify将提交的yaml配置进行反序列化成configmap实例，然后通过调用
clientset.CoreV1().ConfigMaps(namespace).Update进行更新
//获取configmapyaml配置
func GetCmYaml(kubeconfig, namespace, configmapName string) (string, error) {
cmClient := common.ClientSet(kubeconfig).CoreV1().ConfigMaps(namespace)
//读取configmap实例配置
configmap, err := cmClient.Get(context.TODO(), configmapName, metav1.GetOptions{})
//将配置进行解构
cmUnstructured, err := runtime.DefaultUnstructuredConverter.ToUnstructured(configmap)
if err != nil {
return "", err
}
//将解构的数据进行序列化成yaml配置
yamlBytes, err := yaml.Marshal(cmUnstructured)
if err != nil {
return "", err
}
return string(yamlBytes), nil
}
//更新configmap的yaml配置
func CmYamlModify(kubeconfig string, yamlData []byte) error {
//将yaml配置解析成json
data, err := yamlutil.ToJSON(yamlData)
if err != nil {
return err
}
//定义configmap实例
configmap := &corev1.ConfigMap{}
//将json数据转成结构体configmap的实例上
err = json.Unmarshal(data, configmap)
if err != nil {
return err
}
namespace := configmap.ObjectMeta.Namespace
confignameName := configmap.ObjectMeta.Name
//调用Update函数进行更新
clientset := common.ClientSet(kubeconfig)
_, err = clientset.CoreV1().ConfigMaps(namespace).Update(context.TODO(), configmap, metav1.UpdateOptions{})
if err != nil {
return err
}
//fmt.Println(namespace, confignameName)
return err
}
四.路由设置
4.1.路由设置
将以下路由配置添加到routers/route.go中
//configmap
beego.Router("/cm/v1/List", &controllers.ConfigMapController{}, "*:List")
beego.Router("/cm/v1/Create", &controllers.ConfigMapController{}, "*:Create")
beego.Router("/cm/v1/ModifyByYaml", &controllers.ConfigMapController{}, "*:ModifyByYaml")
beego.Router("/cm/v1/Yaml", &controllers.ConfigMapController{}, "*:Yaml")
五.前端代码
5.1.列表部分html代码
5.1 configmapList.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>configmap列表</title>
<meta name="renderer" content="webkit">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<link rel="stylesheet" href="/lib/layui-v2.6.3/css/layui.css" media="all">
<link rel="stylesheet" href="/css/public.css" media="all">
<script type="text/javascript" src="/lib/jquery-3.4.1/jquery-3.4.1.min.js"></script>
<script src="/lib/layui-v2.6.3/layui.js" charset="utf-8"></script>
<script src="/js/xkube.js?v=1" charset="utf-8"></script>
<script src="/js/lay-config.js?v=1.0.4" charset="utf-8"></script>
<style type="text/css">
.layui-table-cell {
height: auto;
line-height: 22px !important;
text-overflow: inherit;
overflow: visible;
white-space: normal;
}
.layui-table-cell .layui-table-tool-panel li {
word-break: break-word;
}
</style>
</head>
<body>
<div class="layuimini-container">
<div class="layuimini-main">
<script type="text/html" id="toolbarDemo">
<div class="layui-btn-container">
<button class="layui-btn layui-btn-normal layui-btn-sm data-add-btn" lay-event="create"><i class="layui-icon"></i>创建configmap</button>
</div>
</script>
<table class="layui-table" id="currentTableId" lay-filter="currentTableFilter"></table>
<script type="text/html" id="currentTableBar">
<a class="layui-btn layui-btn-normal layui-btn-sm" lay-event="viewYaml">yaml编辑</a>
<a class="layui-btn layui-btn-normal layui-btn-sm layui-btn-danger" lay-event="delete">删除</a>
</script>
</div>
</div>
</body>
<script type="text/html" id="TagTpl">
{{# if (d.labels != "") { }}
{{# layui.each(d.labels.split(','), function(index, item){ }}
{{# if(index == 0) { }}
<span>{{ item }}</span>
{{# }else{ }}
<br><span>{{ item }}</span>
{{# } }}
{{# }); }}
{{# }else{ }}
<span></span>
{{# } }}
</script>
<script>
var clusterId = getQueryString("clusterId");
if (clusterId == null) {
clusterId = getCookie("clusterId")
}
layui.use(['form', 'table','miniTab'], function () {
var $ = layui.jquery,
form = layui.form,
table = layui.table;
miniTab = layui.miniTab,
miniTab.listen();
table.render({
elem: '#currentTableId',
url: '/cm/v1/List?clusterId='+clusterId,
toolbar: '#toolbarDemo',
defaultToolbar: ['filter', 'exports', 'print', {
title: '提示',
layEvent: 'LAYTABLE_TIPS',
icon: 'layui-icon-tips'
}],
parseData: function(res) { //实现加载全部数据后再分页
if(this.page.curr) {
result=res.data.slice(this.limit*(this.page.curr-1),this.limit*this.page.curr);
}else{
result=res.data.slice(0,this.limit);
}
return {
"code": res.code,
"msg":'',
"count":res.count,
"data":result
};
},
cols: [[
//{type: "checkbox", width: 50},
{field: 'configmapName', width: 250,title: '名称', sort: true},
{field: 'nameSpace', width: 150,title: '命名空间', sort: true},
{field: 'labels', title: '标签', sort: true,templet: '#TagTpl'},
{field: 'createTime', width:180, title: '创建时间'},
{title: '操作', toolbar: '#currentTableBar', align: "center"}
]],
//size:'lg',
limits: [25, 50, 100],
limit: 25,
page: true
});
table.on('toolbar(currentTableFilter)', function (obj) {
if (obj.event === 'create') { // 监听添加操作
var index = layer.open({
title: '创建',
type: 2,
shade: 0.2,
maxmin:true,
shadeClose: true,
area: ['60%', '90%'],
content: '/page/xkube/configmapCreate.html',
//end: function(){
// window.parent.location.reload();//关闭open打开的页面时，刷新父页面
//}
});
$(window).on("resize", function () {
layer.full(index);
});
}
});
table.on('tool(currentTableFilter)', function (obj) {
var data = obj.data;
if (obj.event === 'viewYaml') {
var index = layer.open({
title: 'yaml',
type: 2,
shade: 0.2,
maxmin:true,
shadeClose: true,
area: ['45%', '92%'],
content: '/page/xkube/configmapYaml.html?clusterId='+clusterId+'&nameSpace='+data.nameSpace+'&configmapName='+data.configmapName,
});
$(window).on("resize", function () {
layer.full(index);
});
return false;
}
});
});
</script>
</html>
5.2.创建表单html代码
5.2 configmapCreate.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>创建</title>
<meta name="renderer" content="webkit">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<link rel="stylesheet" href="/lib/layui-v2.6.3/css/layui.css" media="all">
<link rel="stylesheet" href="/css/public.css" media="all">
<script type="text/javascript" src="/lib/jquery-3.4.1/jquery-3.4.1.min.js"></script>
<script src="/lib/layui-v2.6.3/layui.js" charset="utf-8"></script>
<script src="/js/xkube.js?v=1" charset="utf-8"></script>
<style>
body {
background-color: #ffffff;
}
</style>
</head>
<body>
<div class="layuimini-container">
<div class="layuimini-main">
<form class="layui-form layui-form-pane" action="">
<div class="layui-form-item">
<div class="layui-inline">
<label class="layui-form-label">当前集群</label>
<div class="layui-input-inline">
<select name="clusterId" lay-filter="cluster_Id" lay-search="" id="cluster_Id">
<option value="">请选择集群</option>
</select>
</div>
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label required">cm名称</label>
<div class="layui-input-inline" style="width:400px">
<input type="text" name="configmapName" placeholder="不能为空" lay-verify="required" lay-reqtext="不能为空" value="" class="layui-input">
</div>
<div class="layui-form-mid layui-word-aux"><span style="color:red">*</span></div>
</div>
<div class="layui-form-item">
<label class="layui-form-label">命名空间</label>
<div class="layui-input-inline" style="width:400px">
<select name="nameSpace" lay-filter="name_Space" lay-search="" id="name_Space">
</select>
</div>
</div>
<div class="configmapTpl">
<blockquote class="layui-elem-quote">
<div class="layui-form-item">
<label class="layui-form-label required">key名称</label>
<div class="layui-input-inline" style="width:250px">
<input type="text" id="configmapKey0" name="configmapKey[]" lay-verify="required" lay-reqtext="不能为空" placeholder="key" value="" class="layui-input">
</div>
<div class="layui-input-inline">
<button class="layui-btn layui-btn-normal" id="cmaddbtn"><i class="layui-icon layui-icon-add-circle"></i></button>
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label">值</label>
<div class="layui-input-block" style="width:400px">
<textarea id="configmapValue0" name="configmapValue[]" lay-verify="required" lay-reqtext="不能为空" placeholder="请输入内容" class="layui-textarea"></textarea>
</div>
</div>
</blockquote>
</div>
<fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
<legend>标签</legend>
</fieldset>
<div class="labelsTpl">
<div class="layui-form-item">
<label class="layui-form-label">标签</label>
<div class="layui-input-inline" style="width:150px">
<input type="text" id="labels_key0" name="labels_key[]" placeholder="key" value="" class="layui-input">
</div>
<div class="layui-input-inline" style="width:150px">
<input type="text" id="labels_value0" name="labels_value[]" placeholder="value" value="" class="layui-input">
</div>
<div class="layui-input-inline">
<button class="layui-btn layui-btn-normal" id="newaddbtn"><i class="layui-icon layui-icon-add-circle"></i></button>
</div>
</div>
</div>
<br>
<div class="layui-form-item">
<div class="layui-input-block">
<button class="layui-btn layui-btn-normal" lay-submit lay-filter="saveBtn">确认保存</button>
</div>
</div>
</form>
</div>
</div>
</body>
<script>
//标签删除
var TplIndex = 0;
function delTpl(id) {
//console.log(id);
//var TplIndex = id;
TplIndex--;
$("#tpl-"+id).remove();
}
//configmap删除
var cTplIndex = 0;
function delcTpl(id) {
//console.log(id);
//var cTplIndex = id;
cTplIndex--;
$("#ctpl-"+id).remove();
}
layui.use(['form'], function () {
var form = layui.form,
layer = layui.layer,
$ = layui.$;
//labes add
$('#newaddbtn').on("click",function(){
TplIndex++;
var addTpl =
'<div class="layui-form-item" id="tpl-'+TplIndex+'">' +
'<label class="layui-form-label">标签</label>' +
'<div class="layui-input-inline" style="width:150px">' +
'<input type="text" name="labels_key[]" id="labels_key'+TplIndex+'" placeholder="key" value="" class="layui-input">' +
'</div>' +
'<div class="layui-input-inline" style="width:150px">' +
'<input type="text" name="labels_value[]" id="labels_value'+TplIndex+'" placeholder="value" value="" class="layui-input">' +
'</div>' +
'<div class="layui-input-inline">' +
'<input class="layui-btn layui-btn-normal layui-bg-orange layui-icon" style="width:60px" type="button" id="newDelbtn" value="" οnclick="delTpl('+TplIndex+');" />' +
'</div>' +
'</div>'
$('.labelsTpl').append(addTpl);
form.render();
return false;
});
//configmap增加
$('#cmaddbtn').on("click",function(){
cTplIndex++;
var addTpl =
'<blockquote class="layui-elem-quote"id="ctpl-'+cTplIndex+'">' +
'<div class="layui-form-item">' +
'<label class="layui-form-label required">名称</label>' +
'<div class="layui-input-inline" style="width:250px">' +
'<input type="text" name="configmapKey[]" id="configmapKey'+cTplIndex+'" placeholder="key" value="" class="layui-input">' +
'</div>' +
'<div class="layui-input-inline">' +
'<input class="layui-btn layui-btn-normal layui-bg-orange layui-icon" style="width:60px" type="button" value="" οnclick="delcTpl('+cTplIndex+');" />' +
'</div>' +
'</div>' +
'<div class="layui-form-item">' +
'<label class="layui-form-label">值</label>' +
'<div class="layui-input-block" style="width:400px">' +
'<textarea placeholder="请输入内容" class="layui-textarea" id="configmapValue'+cTplIndex+'"></textarea>' +
'</div>' +
'</div>'
$('.configmapTpl').append(addTpl);
form.render();
return false;
});
//监听提交
form.on('submit(saveBtn)', function (data) {
//data.field.appname = data.field.appname.replace(/^\s*|\s*$/g,""); //替换空格
//labels
var labelsArry = [];
for (var i=0;i<=TplIndex;i++) {
//delete data.field.lables_key[i];
//delete data.field.labels_value[i];
var kk = document.getElementById("labels_key"+i).value;
var vv = document.getElementById("labels_value"+i).value;
if ( kk != "" && vv != "") {
labelsArry.push(
{
key:kk.replace(/^\s*|\s*$/g,""),
value:vv.replace(/^\s*|\s*$/g,""),
}
)
}
}
if (labelsArry.length > 0) {
data.field.lables = labelsArry;
}
//cm 处理
var cmArry = [];
console.log(cTplIndex);
for (var i=0;i<=cTplIndex;i++) {
var kk = document.getElementById("configmapKey"+i).value;
var vv = document.getElementById("configmapValue"+i).value;
console.log(i);
if ( kk != null && vv != null) {
console.log(kk);
console.log(vv);
cmArry.push(
{
key:kk.replace(/^\s*|\s*$/g,""),
value:vv,
}
)
}
}
if (cmArry.length > 0) {
data.field.configmaps = cmArry;
}
console.log(data.field);
layer.confirm('确定添加?', {icon: 3, title:'提示',yes: function(index){
var index2 = layer.load(0, {shade: false});
layer.msg('稍等片刻');
$.ajax({
url: "/cm/v1/Create?clusterId="+data.field.clusterId,
type: "post",
data: JSON.stringify(data.field),
dataType: "json",
success: function (resp) {
layer.close(index2);
if(resp.code == 0){
layer.msg('添加成功', {icon: 1});
//window.location.reload();
}else{
layer.msg(resp.msg,{icon:2});
}
}
});
},
cancel: function(index, layero){
layer.close(index);
layer.close(index2);
console.log("不操作");
}
});
return false;
});
});
</script>
</html>
5.3.显示yaml配置的html代码
5.3 configmapYaml.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>yaml编辑</title>
<meta name="renderer" content="webkit">
<link rel="stylesheet" href="/lib/layui-v2.6.3/css/layui.css" media="all">
<link rel="stylesheet" href="/css/public.css" media="all">
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
<link
rel="stylesheet"
data-name="vs/editor/editor.main"
href="/monaco-editor/min/vs/editor/editor.main.css"
/>
<script src="/js/xkube.js?v=1" charset="utf-8"></script>
<script type="text/javascript" src="/lib/jquery-3.4.1/jquery-3.4.1.min.js"></script>
</head>
<body>
<div class="layuimini-container">
<div class="layuimini-main">
<div id="container" style="width: 100%; height:460px; border: 1px solid grey"></div>
<br>
<fieldset class="table-search-fieldset">
<legend></legend>
<button class="layui-btn layui-btn-sm" id="SaveBtn" >保存更新</button>
<button class="layui-btn layui-btn-normal layui-btn-sm" id="DownLoadBtn">下载</button>
</fieldset>
</div>
</div>
<script src="/lib/layui-v2.6.3/layui.js" charset="utf-8"></script>
<script>
var require = { paths: { vs: '/monaco-editor/min/vs' } };
</script>
<script src="/monaco-editor/min/vs/loader.js"></script>
<script src="/monaco-editor/min/vs/editor/editor.main.nls.js"></script>
<script src="/monaco-editor/min/vs/editor/editor.main.js"></script>
<script>
layui.use(['form', 'table','code'], function () {
var $ = layui.jquery;
var form = layui.form,
layer = layui.layer;
var editor = monaco.editor.create(document.getElementById('container'), {
value: '',
language: 'yaml',
//automaticLayout: true,
minimap: {enabled: false},
wordWrap: 'on',
theme: 'vs-dark'
});
$.ajax({
url: "/cm/v1/Yaml"+location.search,
type: "GET",
success: function (resp) {
//codeyaml = resp;
editor.setValue(resp);
}
});
$('#SaveBtn').on("click",function(){
var yamlBody = editor.getValue();
yamlBody = yamlBody.replace(/%/g,"%25");
layer.confirm('确定修改?', {icon: 3, title:'提示',yes: function(index){
$.ajax({
url: "/cm/v1/ModifyByYaml"+location.search,
type: "POST",
data: yamlBody,
dataType: "json",
success: function (resp) {
layer.msg(resp.msg);
console.log(resp);
}
});
},
cancel: function(index, layero){
layer.close(index);
}
});
});
$('#DownLoadBtn').on("click",function(){
var configmapName = getQueryString("configmapName");
ExportRaw(configmapName+'.yaml',editor.getValue());
});
});
</script>
</body>
</html>
六.完整代码
6.1.控制器完整代码
6.1 configmap.go,放到controllers下
// configmap.go
package controllers
import (
"log"
m "myk8s/models"
"strings"
//"github.com/tidwall/gjson"
beego "github.com/beego/beego/v2/server/web"
)
type ConfigMapController struct {
beego.Controller
}
func (this *ConfigMapController) List() {
clusterId := this.GetString("clusterId")
nameSpace := this.GetString("nameSpace")
configmapName := this.GetString("configmapName")
labels := this.GetString("labels")
labelsKV := strings.Split(labels, ":")
var labelsKey, labelsValue string
if len(labelsKV) == 2 {
labelsKey = labelsKV[0]
labelsValue = labelsKV[1]
}
cmList, err := m.CmList(clusterId, nameSpace, configmapName, labelsKey, labelsValue)
msg := "success"
code := 0
count := len(cmList)
if err != nil {
log.Println(err)
msg = err.Error()
code = -1
}
this.Data["json"] = &map[string]interface{}{"code": code, "msg": msg, "count": count, "data": &cmList}
this.ServeJSON()
}
func (this *ConfigMapController) Create() {
clusterId := this.GetString("clusterId")
code := 0
msg := "success"
err := m.CmCreate(clusterId, this.Ctx.Input.RequestBody)
if err != nil {
code = -1
msg = err.Error()
log.Printf("[ERROR] configmap Create Fail:%s\n", err)
}
this.Data["json"] = &map[string]interface{}{"code": code, "msg": msg}
this.ServeJSON()
}
func (this *ConfigMapController) ModifyByYaml() {
clusterId := this.GetString("clusterId")
code := 0
msg := "success"
bodyByte := []byte(strings.ReplaceAll(string(this.Ctx.Input.RequestBody), "%25", "%"))
err := m.CmYamlModify(clusterId, bodyByte)
if err != nil {
code = -1
msg = err.Error()
log.Printf("[ERROR] configmap ModifyByYaml Fail:%s\n", err)
}
this.Data["json"] = &map[string]interface{}{"code": code, "msg": msg}
this.ServeJSON()
}
func (this *ConfigMapController) Yaml() {
clusterId := this.GetString("clusterId")
namespace := this.GetString("nameSpace")
configmapName := this.GetString("configmapName")
yamlStr, _ := m.GetCmYaml(clusterId, namespace, configmapName)
this.Ctx.WriteString(yamlStr)
}
6.2.模型完整代码
6.2 configmapModel.go,放到models下
// configmapModel.go
package models
import (
"context"
"encoding/json"
"fmt"
"log"
"myk8s/common"
"strings"
"github.com/tidwall/gjson"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
yamlutil "k8s.io/apimachinery/pkg/util/yaml"
"sigs.k8s.io/yaml"
)
type Configmap struct {
ConfigmapName string `json:"configmapName"`
NameSpace string `json:"nameSpace"`
Labels string `json:"labels"`
CreateTime string `json:"createTime"`
Data []Cmkv `json:"data"`
}
type Cmkv struct {
Key string `json:"key"`
Value string `json:"value"`
}
func CmList(kubeconfig, namespace, configmapName string, labelsKey, labelsValue string) ([]Configmap, error) {
clientset := common.ClientSet(kubeconfig)
if namespace == "" {
//namespace = corev1.NamespaceDefault
namespace = corev1.NamespaceAll
}
//设置ListOptions
var listOptions = metav1.ListOptions{}
if labelsKey != "" && labelsValue != "" {
listOptions = metav1.ListOptions{
LabelSelector: fmt.Sprintf("%s=%s", labelsKey, labelsValue),
}
}
cmList, err := clientset.CoreV1().ConfigMaps(namespace).List(context.TODO(), listOptions)
if err != nil {
log.Printf("list deployment error, err:%v\n", err)
}
var bbb = make([]Configmap, 0)
for _, cm := range cmList.Items {
//搜索
if configmapName != "" {
if !strings.Contains(cm.Name, configmapName) {
continue
}
}
var labelsStr string
for kk, vv := range cm.ObjectMeta.Labels {
labelsStr += fmt.Sprintf("%s:%s,", kk, vv)
}
if len(labelsStr) > 0 {
labelsStr = labelsStr[0 : len(labelsStr)-1]
}
Items := &Configmap{
ConfigmapName: cm.Name,
NameSpace: cm.Namespace,
Labels: labelsStr,
CreateTime: cm.CreationTimestamp.Format("2006-01-02 15:04:05"),
}
bbb = append(bbb, *Items)
}
return bbb, err
}
func CmCreate(kubeconfig string, bodys []byte) error {
gp := gjson.ParseBytes(bodys)
clusterId := gp.Get("clusterId").String()
if kubeconfig == "" {
kubeconfig = clusterId
}
configmapName := gp.Get("configmapName").String()
nameSpace := gp.Get("nameSpace").String()
var labelsMap = make(map[string]string)
labelsMap["app"] = configmapName
for _, vv := range gp.Get("lables").Array() {
labelsMap[vv.Get("key").Str] = vv.Get("value").Str
}
var dataMap = make(map[string]string)
for _, vv := range gp.Get("configmaps").Array() {
dataMap[vv.Get("key").Str] = vv.Get("value").Str
}
cm := &corev1.ConfigMap{
ObjectMeta: metav1.ObjectMeta{
Name: configmapName,
Namespace: nameSpace,
Labels: labelsMap,
},
Data: dataMap,
}
clientset := common.ClientSet(kubeconfig)
_, err := clientset.CoreV1().ConfigMaps(nameSpace).Create(context.TODO(), cm, metav1.CreateOptions{})
if err != nil {
return err
}
return nil
}
func CmYamlModify(kubeconfig string, yamlData []byte) error {
data, err := yamlutil.ToJSON(yamlData)
if err != nil {
return err
}
configmap := &corev1.ConfigMap{}
err = json.Unmarshal(data, configmap)
if err != nil {
return err
}
namespace := configmap.ObjectMeta.Namespace
confignameName := configmap.ObjectMeta.Name
clientset := common.ClientSet(kubeconfig)
_, err = clientset.CoreV1().ConfigMaps(namespace).Update(context.TODO(), configmap, metav1.UpdateOptions{})
if err != nil {
return err
}
fmt.Println(namespace, confignameName)
return err
}
func GetCmYaml(kubeconfig, namespace, configmapName string) (string, error) {
cmClient := common.ClientSet(kubeconfig).CoreV1().ConfigMaps(namespace)
configmap, err := cmClient.Get(context.TODO(), configmapName, metav1.GetOptions{})
cmUnstructured, err := runtime.DefaultUnstructuredConverter.ToUnstructured(configmap)
if err != nil {
return "", err
}
yamlBytes, err := yaml.Marshal(cmUnstructured)
if err != nil {
return "", err
}
return string(yamlBytes), nil
}
七.效果图
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