实践：devops之K8s环境持续部署
实践：devops之K8s环境持续部署
目录
推荐文章
https://www.yuque.com/xyy-onlyone/aevhhf?# 《玩转Typora》
1、Kubectl 发布流水线
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CI流水线：
- 下载代码
- 构建单元测试
- 代码扫描
- 构建镜像
- 更新发布文件
CD流水线：
- 输入版本，从git下载部署文件；
- 使用kubectl发布；
- 使用kubectl回滚；
环境准备
jenkins
gitlab
sonarQube
harbor
使用之前的npm项目
- 使用之前的npm项目
devops6-npm-service
如何构建，请看npm构建项目部分。
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- 新建
Dockerfile
FROM nginx:1.17.0
COPY index.html /usr/share/nginx/html/
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- 编辑
index.html文件
<h1>VERSION: main</h1>
- 配置好sonar参数
创建sonar-project.properties文件
# 定义唯一的关键字
sonar.projectKey=devops6-npm-service
# 定义项目名称
sonar.projectName=devops6-npm-service
# 定义项目的版本信息
sonar.projectVersion=1.0
# 指定扫描代码的目录位置（多个逗号分隔）
sonar.sources=src
# 执行项目编码
sonar.sourceEncoding=UTF-8
# 指定sonar Server
sonar.host.url=http://172.29.9.101:9000
# 认证信息
sonar.login=admin
sonar.password=Admin@123
然后提交项目代码。
创建一条新pipeline
- 以原
devops6-maven-service_CI为基础拷贝一条新流水线devops6-npm-service_K8SCI：
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⚠️ 注意：但是这里的Git选项参数一直没效果，测试不出来，很奇怪。。。因此，就直接用默认的选项参数就好。
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- 开始进行构建
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可以看待，前面几个过程都是ok的，这里上传制品过程，不需要。
创建harbor仓库
- 镜像命名规范：
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- 创建仓库
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- 修改本地 docker 服务使用 http 协议和私有仓库通信（否则会报错）
#配置可信任（如果仓库是HTTPS访问不用配置）
#在 daemon.json 中添加以下参数
[root@harbor ~]# vim /etc/docker/daemon.json #创建此文件，并写入以下内容
{
"insecure-registries": ["172.29.9.120"]
}
#重启docker 服务
[root@harbor ~]# systemctl daemon-reload && systemctl restart docker
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编写CI pipeline
- 创建
k8sci.jenkinsfile
@Library("devops06@main") _
//import src/org/devops/xxx.groovy
def checkout = new org.devops.CheckOut()
def build = new org.devops.Build()
def sonar = new org.devops.Sonar()
//使用git 参数需要格式化
env.branchName = "${env.branchName}" - "origin/"
println(env.branchName)
pipeline {
agent {label "build"}
//跳过默认的代码检出功能
options {
skipDefaultCheckout true
}
stages{
stage("CheckOut"){
steps{
script{
checkout.CheckOut()
//获取commitID
env.commitID = checkout.GetCommitID()
println("commitID: ${env.commitID}")
// Jenkins构建显示信息
currentBuild.displayName = "第${BUILD_NUMBER}次构建-${env.commitID}"
currentBuild.description = "构建分支名称：${env.branchName}"
//currentBuild.description = "Trigger by user jenkins \n branch: ${env.branchName}"
}
}
}
stage("Build"){
steps{
script{
build.Build()
}
}
}
stage("CodeScan"){
// 是否跳过代码扫描？
when {
environment name: 'skipSonar', value: 'false'
}
steps{
script{
sonar.SonarScannerByPlugin()
}
}
}
stage("ImageBuild"){
steps{
script{
//PushArtifactByPlugin()
//PushArtifactByPluginPOM()
// init package info
appName = "${JOB_NAME}".split('_')[0] //devops6-maven-service_CI
repoName = appName.split('-')[0] //devops6
imageName = "${repoName}/${appName}"
imageTag = "${env.branchName}-${env.commitID}"
sh """
#登录镜像仓库
docker login -u admin -p Harbor12345 172.29.9.120
# 构建镜像
docker build -t 172.29.9.120/${imageName}:${imageTag} .
# 上传镜像
docker push 172.29.9.120/${imageName}:${imageTag}
# 删除镜像
sleep 2
docker rmi 172.29.9.120/${imageName}:${imageTag}
"""
}
}
}
}
}
- 在回放里运行
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- 然后将代码提交到共享库里。
准备k8s环境
- 启动好k8s环境
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- 在devops06机器上安装kubectl工具
cat > /etc/yum.repos.d/kubernetes.repo << EOF
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF
[root@Devops6 ~]#yum install -y kubectl-1.20.0 --disableexcludes=kubernetes
- 然后把k8s集群master节点下的
~/.kube/config文件拷贝到devops6机器~/.kube/目录下
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- 然后在k8s的2个节点先配置好 修改本地 docker 服务使用 http 协议和私有仓库通信（否则会报错）
#配置可信任（如果仓库是HTTPS访问不用配置）
#在 daemon.json 中添加以下参数
[root@harbor ~]# vim /etc/docker/daemon.json #创建此文件，并写入以下内容
{
"insecure-registries": ["172.29.9.120"]
}
#重启docker 服务
[root@harbor ~]# systemctl daemon-reload && systemctl restart docker
记得：只需要在node1 node2上配置就行。
- 自己k8s集群需不是一个ingress-controller。
这里之前已经部署好ingress-controller了。
- 配置下kubectl的自动补全
#安装软件包
yum install -y epel-release bash-completion
#执行命令
source /usr/share/bash-completion/bash_completion
source <(kubectl completion bash)
echo "source <(kubectl completion bash)" >> ~/.bashrc
source ~/.bashrc
创建一个devops6-deploy-repo仓库
- 创建
Deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: devops6-npm-service
spec:
replicas: 3
revisionHistoryLimit: 3
selector:
matchLabels:
app: devops6-npm-service
template:
metadata:
labels:
app: devops6-npm-service
spec:
containers:
- image: 172.29.9.120/devops6/devops6-npm-service:main-ed12ce10
name: devops6-npm-service
ports:
- containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
name: devops6-npm-service
spec:
type: ClusterIP
selector:
app: devops6-npm-service
ports:
- name: http
protocol: TCP
port: 80
targetPort: 80
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: devops6-npm-service
annotations:
kubernetes.io/ingress.class: nginx
spec:
rules:
- host: devops.test.com
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: devops6-npm-service
port:
name: http
- 自己部署应用测试
创建新命名空间devops6
[root@Devops6 ~]#kubectl create ns devops6
部署应用：
[root@Devops6 ~]#kubectl -n devops6 apply -f Deployment.yaml
deployment.apps/devops6-npm-service created
service/devops6-npm-service created
ingress.networking.k8s.io/devops6-npm-service created
注意：这里直接加上命名空间后，应用就会直接被部署到此命名空间了。
[root@Devops6 ~]#kubectl get po -ndevops6
NAME READY STATUS RESTARTS AGE
devops6-npm-service-bd4978ff9-27bpp 1/1 Running 0 32s
devops6-npm-service-bd4978ff9-clkhm 1/1 Running 0 32s
devops6-npm-service-bd4978ff9-x2sw8 1/1 Running 0 32s
配置ingress域名解析：
[root@Devops6 ~]#vim /etc/hosts
172.29.9.31 devops.test.com
[root@Devops6 ~]#kubectl get ingress -ndevops6
NAME CLASS HOSTS ADDRESS PORTS AGE
devops6-npm-service <none> devops.test.com 172.29.9.31 80 8m11s
测试效果：
[root@Devops6 ~]#curl devops.test.com
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>vuedemo</title>
</head>
<body>
<div id="app">
<h1>VERSION: main</h1>
</div>
<!-- built files will be auto injected -->
</body>
</html>
新建devops6-npm-service版本分支，特性分支
- 以main为基础新建
devops6-npm-service版本分支RELEASE-1.1.1
修改index.html的内容为RELEASE-1.1.1。
- 运行一次CI流水线
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要记得改下这里的jenkinsfile文件：
成功生成镜像：
- 我们再来更新一个版本的应用程序看下
[root@Devops6 ~]#vim Deployment.yaml
将
- image: 172.29.9.120/devops6/devops6-npm-service:main-ed12ce10
替换为
172.29.9.120/devops6/devops6-npm-service:RELEASE-1.1.1-7d906f68
#然后部署应用：
[root@Devops6 ~]#kubectl apply -f Deployment.yaml -ndevops6
#验证
[root@Devops6 ~]#curl devops.test.com
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>vuedemo</title>
</head>
<body>
<div id="app">
<h1>VERSION: RELEASE-1.1.1</h1>
</div>
<!-- built files will be auto injected -->
</body>
</html>
#可以看到，已经更新成功了。
- 我们来测试下回滚
回滚命令：
## 查看历史
kubectl rollout history deployment/anyops-devopsdocker-ui
## 查看具体某一个历史版本信息
kubectl rollout history deployment/anyops-devopsdocker-ui --revision=2
## 回滚上个版本
kubectl rollout undo deployment/anyops-devopsdocker-ui -n anyops
## 回滚指定版本
kubectl rollout undo deployment/nginx --to-revision=2
查看当前应用版本：
[root@Devops6 ~]#kubectl rollout history deployment devops6-npm-service -ndevops6
deployment.apps/devops6-npm-service
REVISION CHANGE-CAUSE
1 <none>
2 <none>
#可以看到有2个历史版本
我们打算回滚到上个历史版本：
先来查看下当前应用版本：
watch -n 1 "curl devops.test.com"
watch -n 1 "curl -s devops.test.com"
开始回滚：
[root@Devops6 ~]#kubectl rollout undo deployment devops6-npm-service -ndevops6
deployment.apps/devops6-npm-service rolled back
回滚结果：
回滚成功。
- 这里调的是gitlab的api
调用gitlab api自动更新配置文件。
- jenkins装一个插件
HTTP Request
devops6-npm-service项目ProjectID为11。
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- 创建
devops6-npm-service目录
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将Deployment.yaml里的image改为__IMAGE_NAME__
- pipeline代码
Gitlab.groovy
package org.devops
//获取文件内容
def GetRepoFile(projectId,filePath,branchName){
//GET /projects/:id/repository/files/:file_path/raw
apiUrl = "/projects/${projectId}/repository/files/${filePath}/raw?ref=${branchName}"
response = HttpReq('GET', apiUrl)
return response
}
//更新文件内容
def UpdateRepoFile(projectId,filePath,fileContent, branchName){
apiUrl = "projects/${projectId}/repository/files/${filePath}"
reqBody = """{"branch": "${branchName}","encoding":"base64", "content": "${fileContent}", "commit_message": "update a new file"}"""
response = HttpReqByPlugin('PUT',apiUrl,reqBody)
println(response)
}
//创建文件
def CreateRepoFile(projectId,filePath,fileContent, branchName){
apiUrl = "projects/${projectId}/repository/files/${filePath}"
reqBody = """{"branch": "${branchName}","encoding":"base64", "content": "${fileContent}", "commit_message": "update a new file"}"""
response = HttpReqByPlugin('POST',apiUrl,reqBody)
println(response)
}
// 封装HTTP
def HttpReqByPlugin(reqType, reqUrl,reqBody ){
def gitServer = "http://172.29.9.101:8076/api/v4"
withCredentials([string(credentialsId: '5782c77d-ce9d-44e5-b9ba-1ba2097fc31d',
variable: 'GITLABTOKEN')]) {
response = httpRequest acceptType: 'APPLICATION_JSON_UTF8',
consoleLogResponseBody: true,
contentType: 'APPLICATION_JSON_UTF8',
customHeaders: [[maskValue: false, name: 'PRIVATE-TOKEN', value: "${GITLABTOKEN}"]],
httpMode: "${reqType}",
url: "${gitServer}/${reqUrl}",
wrapAsMultipart: false,
requestBody: "${reqBody}"
}
return response
}
//发起HTTP请求
//调用gitlab api
def HttpReq(method, apiUrl){
withCredentials([string(credentialsId: '5782c77d-ce9d-44e5-b9ba-1ba2097fc31d', variable: 'gitlabtoken')]) {
response = sh returnStdout: true,
script: """
curl --location --request ${method} \
http://172.29.9.101:8076/api/v4/${apiUrl} \
--header "PRIVATE-TOKEN: ${gitlabtoken}"
"""
}
//新增这段代码
try {
response = readJSON text: response - "\n" //json数据的读取方式
} catch(e){
println(e)
}
return response
}
//获取ProjectID
def GetProjectIDByName(projectName, groupName){
apiUrl = "projects?search=${projectName}"
response = HttpReq("GET", apiUrl)
if (response != []){
for (p in response) {
if (p["namespace"]["name"] == groupName){
return response[0]["id"]
}
}
}
}
//获取分支CommitID
def GetBranchCommitID(projectID, branchName){
apiUrl = "projects/${projectID}/repository/branches/${branchName}"
response = HttpReq("GET", apiUrl)
return response.commit.short_id
}
k8sci.jenkinsfile
@Library("devops06@main") _
//import src/org/devops/xxx.groovy
def checkout = new org.devops.CheckOut()
def build = new org.devops.Build()
def sonar = new org.devops.Sonar()
def mygit = new org.devops.Gitlab()
//使用git 参数需要格式化
env.branchName = "${env.branchName}" - "origin/"
println(env.branchName)
pipeline {
agent {label "build"}
//跳过默认的代码检出功能
options {
skipDefaultCheckout true
}
stages{
stage("CheckOut"){
steps{
script{
checkout.CheckOut()
//获取commitID
env.commitID = checkout.GetCommitID()
println("commitID: ${env.commitID}")
// Jenkins构建显示信息
currentBuild.displayName = "第${BUILD_NUMBER}次构建-${env.commitID}"
currentBuild.description = "构建分支名称：${env.branchName}"
//currentBuild.description = "Trigger by user jenkins \n branch: ${env.branchName}"
}
}
}
stage("Build"){
steps{
script{
build.Build()
}
}
}
stage("CodeScan"){
// 是否跳过代码扫描？
when {
environment name: 'skipSonar', value: 'false'
}
steps{
script{
sonar.SonarScannerByPlugin()
}
}
}
stage("ImageBuild"){
steps{
script{
//PushArtifactByPlugin()
//PushArtifactByPluginPOM()
// init package info
appName = "${JOB_NAME}".split('_')[0] //devops6-maven-service_CI
repoName = appName.split('-')[0] //devops6
imageName = "${repoName}/${appName}"
imageTag = "${env.branchName}-${env.commitID}"
env.fullImageName = "172.29.9.120/${imageName}:${imageTag}"
sh """
#登录镜像仓库
docker login -u admin -p Harbor12345 172.29.9.120
# 构建镜像
docker build -t ${env.fullImageName} .
# 上传镜像
docker push ${env.fullImageName}
# 删除镜像
sleep 2
docker rmi ${env.fullImageName}
"""
}
}
}
stage("UpdateEnvFile"){
steps{
script {
// 更新部署文件
projectId = 11
fileName = "Deployment.yaml" //模板文件
branchName = "main"
//下载模板文件
fileData = mygit.GetRepoFile(projectId,fileName,branchName)
sh "rm -fr ${fileName}"
//模板文件内容保存到本地
writeFile file: fileName , text: fileData
env.deployFile = fileName
//替换镜像
sh "sed -i 's#__IMAGE_NAME__#${env.fullImageName}#g' ${env.deployFile} "
sh "ls -l ; cat ${fileName}"
//创建/更新发布文件
newYaml = sh returnStdout: true, script: "cat ${env.deployFile}"
println(newYaml)
//更新gitlab文件内容
base64Content = newYaml.bytes.encodeBase64().toString()
appName = "${JOB_NAME}".split('_')[0] //devops6-npm-service
env.groupName = appName.split('-')[0] //devops6
env.projectName = appName
// 会有并行问题，同时更新报错
try {
mygit.UpdateRepoFile(projectId,"${env.projectName}%2f${env.branchName}.yaml",base64Content, "main")
} catch(e){
mygit.CreateRepoFile(projectId,"${env.projectName}%2f${env.branchName}.yaml",base64Content, "main")
}
}
}
}
}
}
- 再次新建版本分支
RELEASE-2.1.1，jenkins里记得配置下该分支名。
- 运行
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点击approve
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符合预期。
【GitOps最重要的一个特性： 自动更新部署文件】
更新生成版本文件
- 步骤： 拿到 env仓库中的deployments.yaml模板文件， 然后替换内容，更新到版本库。
-
更新对象：
-
- RELEASE_VERSION(镜像TAG)
-
stage("UpdateEnvFile"){ steps{ script { // 更新部署文件 projectId = 11 fileName = "Deployment.yaml" //模板文件 branchName = "main" //下载模板文件 fileData = mygit.GetRepoFile(projectId,fileName,branchName) sh "rm -fr ${fileName}" //模板文件内容保存到本地 writeFile file: fileName , text: fileData env.deployFile = fileName //替换镜像 sh "sed -i 's#__IMAGE_NAME__#${env.fullImageName}#g' ${env.deployFile} " sh "ls -l ; cat ${fileName}" //创建/更新发布文件 newYaml = sh returnStdout: true, script: "cat ${env.deployFile}" println(newYaml) //更新gitlab文件内容 base64Content = newYaml.bytes.encodeBase64().toString() appName = "${JOB_NAME}".split('_')[0] //devops6-npm-service env.groupName = appName.split('-')[0] //devops6 env.projectName = appName // 会有并行问题，同时更新报错 try { mygit.UpdateRepoFile(projectId,"${env.projectName}%2f${env.branchName}.yaml",base64Content, "main") } catch(e){ mygit.CreateRepoFile(projectId,"${env.projectName}%2f${env.branchName}.yaml",base64Content, "main") } } } } -
更新后的版本文件
编写CD pipeline
- 创建一个CD的job
devops6-npm-service_K8SCD
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配置git仓库：
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- 编写pipeline
k8scd.jenkinsfile文件
@Library("devops06@main") _
def mygit = new org.devops.Gitlab()
//使用git 参数需要格式化
env.branchName = "${env.branchName}" - "origin/"
println(env.branchName)
pipeline {
agent { label "build"}
options {
skipDefaultCheckout true
}
stages{
stage("GetManifests"){
steps{
script{
//下载发布文件
projectId = 11
env.deployFile = "${env.branchName}.yaml" //版本分支RELEASE-2.1.1.yaml
env.appName = "${JOB_NAME}".split('_')[0] //devops6-maven-service
filePath = "${env.appName}%2f${env.deployFile}" //devops6-npm-service/RELEASE-2.1.1.yaml
branchName = "main"
fileData = mygit.GetRepoFile(projectId,filePath,branchName)
sh "rm -fr ${env.deployFile}"
writeFile file: env.deployFile , text: fileData
sh "ls -l ; cat ${env.deployFile}"
}
}
}
stage("Deploy"){
steps{
script{
env.namespace = "${env.appName}".split('-')[0] //devops6
sh """
## 发布应用
kubectl apply -f ${env.deployFile} -n ${env.namespace}
"""
// 获取应用状态
5.times{
sh "sleep 2; kubectl -n ${env.namespace} get pod | grep ${env.appName}"
}
}
}
}
stage("RollBack"){
input {
message "是否进行回滚"
ok "提交"
submitter ""
parameters {
choice(choices: ['yes', 'no'], name: 'opts')
}
}
steps{
script{
switch("${opts}") {
case "yes":
sh "kubectl rollout undo deployment/${env.appName} -n ${env.namespace} "
break
case "no":
break
}
}
}
}
}
}
- 运行流水线
我们来提前观察下此时版本：
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符合预期。
完整代码
完整代码如下：
链接：https://pan.baidu.com/s/1XFtZ0epIwgVwu0jzQHyJkA?pwd=0820
提取码：0820
2023.7.9-day9-k8s-ci-cd （kubectl和helm ci-cd）
CI/CD共享库源码
前端项目 （Dockerfile）
K8s清单文件代码仓库
helm chart仓库
环境：
gitlab-ce:15.0.3-ce.0
jenkins:2.346.3-2-lts-jdk11
sonarqube:9.9.0-community
harbor v2.6.2
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k8sci.jenkinsfile文件
@Library("devops06@main") _
//import src/org/devops/xxx.groovy
def checkout = new org.devops.CheckOut()
def build = new org.devops.Build()
def sonar = new org.devops.Sonar()
def mygit = new org.devops.Gitlab()
//使用git 参数需要格式化
env.branchName = "${env.branchName}" - "origin/"
println(env.branchName)
pipeline {
agent {label "build"}
//跳过默认的代码检出功能
options {
skipDefaultCheckout true
}
stages{
stage("CheckOut"){
steps{
script{
checkout.CheckOut()
//获取commitID
env.commitID = checkout.GetCommitID()
println("commitID: ${env.commitID}")
// Jenkins构建显示信息
currentBuild.displayName = "第${BUILD_NUMBER}次构建-${env.commitID}"
currentBuild.description = "构建分支名称：${env.branchName}"
//currentBuild.description = "Trigger by user jenkins \n branch: ${env.branchName}"
}
}
}
stage("Build"){
steps{
script{
build.Build()
}
}
}
stage("CodeScan"){
// 是否跳过代码扫描？
when {
environment name: 'skipSonar', value: 'false'
}
steps{
script{
sonar.SonarScannerByPlugin()
}
}
}
stage("ImageBuild"){
steps{
script{
//PushArtifactByPlugin()
//PushArtifactByPluginPOM()
// init package info
appName = "${JOB_NAME}".split('_')[0] //devops6-maven-service_CI
repoName = appName.split('-')[0] //devops6
imageName = "${repoName}/${appName}"
imageTag = "${env.branchName}-${env.commitID}"
env.fullImageName = "172.29.9.120/${imageName}:${imageTag}"
sh """
#登录镜像仓库
docker login -u admin -p Harbor12345 172.29.9.120
# 构建镜像
docker build -t ${env.fullImageName} .
# 上传镜像
docker push ${env.fullImageName}
# 删除镜像
sleep 2
docker rmi ${env.fullImageName}
"""
}
}
}
stage("UpdateEnvFile"){
steps{
script {
// 更新部署文件
projectId = 11
fileName = "Deployment.yaml" //模板文件
branchName = "main"
//下载模板文件
fileData = mygit.GetRepoFile(projectId,fileName,branchName)
sh "rm -fr ${fileName}"
//模板文件内容保存到本地
writeFile file: fileName , text: fileData
env.deployFile = fileName
//替换镜像
sh "sed -i 's#__IMAGE_NAME__#${env.fullImageName}#g' ${env.deployFile} "
sh "ls -l ; cat ${fileName}"
//创建/更新发布文件
newYaml = sh returnStdout: true, script: "cat ${env.deployFile}"
println(newYaml)
//更新gitlab文件内容
base64Content = newYaml.bytes.encodeBase64().toString()
appName = "${JOB_NAME}".split('_')[0] //devops6-npm-service
env.groupName = appName.split('-')[0] //devops6
env.projectName = appName
// 会有并行问题，同时更新报错
try {
mygit.UpdateRepoFile(projectId,"${env.projectName}%2f${env.branchName}.yaml",base64Content, "main")
} catch(e){
mygit.CreateRepoFile(projectId,"${env.projectName}%2f${env.branchName}.yaml",base64Content, "main")
}
}
}
}
}
}
k8scd.jenkinsfile文件：
@Library("devops06@main") _
def mygit = new org.devops.Gitlab()
//使用git 参数需要格式化
env.branchName = "${env.branchName}" - "origin/"
println(env.branchName)
pipeline {
agent { label "build"}
options {
skipDefaultCheckout true
}
stages{
stage("GetManifests"){
steps{
script{
//下载发布文件
projectId = 11
env.deployFile = "${env.branchName}.yaml" //版本分支RELEASE-2.1.1.yaml
env.appName = "${JOB_NAME}".split('_')[0] //devops6-maven-service
filePath = "${env.appName}%2f${env.deployFile}" //devops6-npm-service/RELEASE-2.1.1.yaml
branchName = "main"
fileData = mygit.GetRepoFile(projectId,filePath,branchName)
sh "rm -fr ${env.deployFile}"
writeFile file: env.deployFile , text: fileData
sh "ls -l ; cat ${env.deployFile}"
}
}
}
stage("Deploy"){
steps{
script{
env.namespace = "${env.appName}".split('-')[0] //devops6
sh """
## 发布应用
kubectl apply -f ${env.deployFile} -n ${env.namespace}
"""
// 获取应用状态
5.times{
sh "sleep 2; kubectl -n ${env.namespace} get pod | grep ${env.appName}"
}
}
}
}
stage("RollBack"){
input {
message "是否进行回滚"
ok "提交"
submitter ""
parameters {
choice(choices: ['yes', 'no'], name: 'opts')
}
}
steps{
script{
switch("${opts}") {
case "yes":
sh "kubectl rollout undo deployment/${env.appName} -n ${env.namespace} "
break
case "no":
break
}
}
}
}
}
}
2、Helm CI/CD流水线
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环境准备
删除devops6命名空间
[root@Devops6 ~]#kubectl delete ns devops6
集群安装helm
[root@Devops6 ~]#tar xf helm-v3.7.2-linux-amd64.tar.gz
[root@Devops6 ~]#cd linux-amd64/
[root@Devops6 linux-amd64]#cp helm /usr/bin/
[root@Devops6 linux-amd64]#chmod +x /usr/bin/helm
[root@Devops6 linux-amd64]#helm version
WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /root/.kube/config
WARNING: Kubernetes configuration file is world-readable. This is insecure. Location: /root/.kube/config
version.BuildInfo{Version:"v3.7.2", GitCommit:"663a896f4a815053445eec4153677ddc24a0a361", GitTreeState:"clean", GoVersion:"go1.16.10"}
[root@Devops6 linux-amd64]#helm repo add stable http://mirror.azure.cn/kubernetes/charts/
WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /root/.kube/config
WARNING: Kubernetes configuration file is world-readable. This is insecure. Location: /root/.kube/config
"stable" has been added to your repositories
[root@Devops6 linux-amd64]# helm repo list
WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /root/.kube/config
WARNING: Kubernetes configuration file is world-readable. This is insecure. Location: /root/.kube/config
NAME URL
stable http://mirror.azure.cn/kubernetes/charts/
[root@Devops6 linux-amd64]#echo "source <(helm completion bash)" >> ~/.bashrc
[root@Devops6 linux-amd64]#source ~/.bashrc
WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /root/.kube/config
WARNING: Kubernetes configuration file is world-readable. This is insecure. Location: /root/.kube/config
[root@Devops6 linux-amd64]#helm list
WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /root/.kube/config
WARNING: Kubernetes configuration file is world-readable. This is insecure. Location: /root/.kube/config
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
[root@Devops6 linux-amd64]#
- 具体安装文档参考链接：
https://blog.csdn.net/weixin_39246554/article/details/123955289?ops_request_misc=&request_id=5c6a4510d72e40eabbcc39450945e6e4&biz_id=&utm_medium=distribute.pc_search_result.none-task-blog-2blogkoosearch~default-2-123955289-null-null.268v1control&utm_term=helm&spm=1018.2226.3001.4450
创建helm仓库
devops6-helm-repo
helm手动安装包
- 生成helm chart
[root@Devops6 ~]#helm create devops6-npm-service
WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /root/.kube/config
WARNING: Kubernetes configuration file is world-readable. This is insecure. Location: /root/.kube/config
Creating devops6-npm-service
[root@Devops6 ~]#cd devops6-npm-service/
[root@Devops6 devops6-npm-service]#ls
charts Chart.yaml templates values.yaml
- 编辑
values.yaml
修改如下2处地方：
[root@Devops6 devops6-npm-service]#vim values.yaml
image:
repository: 172.29.9.120/devops6/devops6-npm-service
pullPolicy: IfNotPresent
# Overrides the image tag whose default is the chart appVersion.
tag: "RELEASE-2.1.1-8a398eee"
……
ingress:
enabled: true
className: ""
annotations:
kubernetes.io/ingress.class: nginx
# kubernetes.io/tls-acme: "true"
hosts:
- host: devops.test.com
paths:
- path: /
pathType: Prefix
- 生成部署文件
[root@Devops6 devops6-npm-service]#helm template --output-dir manifests .
WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /root/.kube/config
WARNING: Kubernetes configuration file is world-readable. This is insecure. Location: /root/.kube/config
wrote manifests/devops6-npm-service/templates/serviceaccount.yaml
wrote manifests/devops6-npm-service/templates/service.yaml
wrote manifests/devops6-npm-service/templates/deployment.yaml
wrote manifests/devops6-npm-service/templates/ingress.yaml
wrote manifests/devops6-npm-service/templates/tests/test-connection.yaml
- 部署
[root@Devops6 devops6-npm-service]#helm install devops6-npm-service . -ndevops6 --create-namespace
WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /root/.kube/config
WARNING: Kubernetes configuration file is world-readable. This is insecure. Location: /root/.kube/config
NAME: devops6-npm-service
LAST DEPLOYED: Sat Jul 8 10:57:40 2023
NAMESPACE: devops6
STATUS: deployed
REVISION: 1
NOTES:
1. Get the application URL by running these commands:
http://devops.test.com/
- 验证
[root@Devops6 devops6-npm-service]#kubectl get po -ndevops6
NAME READY STATUS RESTARTS AGE
devops6-npm-service-7bcb6c49b5-rls6f 1/1 Running 0 28s
[root@Devops6 devops6-npm-service]#watch -n 1 "curl -s devops.test.com"
Every 1.0s: curl -s devops.test.com Sat Jul 8 10:58:46 2023
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>vuedemo</title>
</head>
<body>
<div id="app">
<h1>VERSION: RELEASE-2.1.1</h1>
</div>
<!-- built files will be auto injected -->
</body>
</html>
部署成功。
- 将次helm chart推送到刚才创建的helm仓库
#先删除manifests目录
[root@Devops6 devops6-npm-service]#pwd
/root/devops6-npm-service
[root@Devops6 devops6-npm-service]#ls
charts Chart.yaml manifests templates values.yaml
[root@Devops6 devops6-npm-service]#rm -rf manifests/
#推送 （注意：这次试验这里是master分支）
cd existing_folder
git init
git remote add origin http://172.29.9.101:8076/devops6/devops6-helm-repo.git
git add .
git commit -m "Initial commit"
git push -u origin master
harbor上开启helm chart
- 默认harbor没有helm chart功能，需要另外配置下才行
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- 配置
开启helm charts
./install.sh --with-chartmuseum
helm repo add devops6repo http://172.29.9.120/chartrepo/devops6/ --username=admin --password=Harbor12345
配置完后，harbor界面就出现了helm chart选项了：
添加过程：
[root@Devops6 devops6-npm-service]#helm repo list
WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /root/.kube/config
WARNING: Kubernetes configuration file is world-readable. This is insecure. Location: /root/.kube/config
NAME URL
stable http://mirror.azure.cn/kubernetes/charts/
[root@Devops6 devops6-npm-service]#helm repo add devops6repo http://172.29.9.120/chartrepo/devops6/ --username=admin --password=Harbor12345
WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /root/.kube/config
WARNING: Kubernetes configuration file is world-readable. This is insecure. Location: /root/.kube/config
"devops6repo" has been added to your repositories
[root@Devops6 devops6-npm-service]#helm repo list
WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /root/.kube/config
WARNING: Kubernetes configuration file is world-readable. This is insecure. Location: /root/.kube/config
NAME URL
stable http://mirror.azure.cn/kubernetes/charts/
devops6repo http://172.29.9.120/chartrepo/devops6/
helm安装cm-push软件
CI pipeline
pipeline代码
创建CI 流水线
- 以
devops6-npm-service_K8SCI为基础新创建devops6-npm-service_HELMCI项目
修改为helmci.jenkinsfile。
- 最终
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CI 测试
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CD pipeline
pipeline代码
创建CD流水线
- 以
devops6-npm-service_K8SCD为基础新创建devops6-npm-service_HELMCD项目
修改为helmcd.jenkinsfile
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修改选线参数：
最终：
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CD测试
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完整代码
完整代码如下：
链接：https://pan.baidu.com/s/1XFtZ0epIwgVwu0jzQHyJkA?pwd=0820
提取码：0820
2023.7.9-day9-k8s-ci-cd （kubectl和helm ci-cd）
CI/CD共享库源码
前端项目 （Dockerfile）
K8s清单文件代码仓库
helm chart仓库
环境：
gitlab-ce:15.0.3-ce.0
jenkins:2.346.3-2-lts-jdk11
sonarqube:9.9.0-community
harbor v2.6.2
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helmci.jenkinsfile文件
@Library("devops06@main") _
//import src/org/devops/Build.groovy
def build = new org.devops.Build()
def sonar = new org.devops.Sonar()
def checkouts = new org.devops.CheckOut()
def mygit = new org.devops.Gitlab()
//使用git 参数需要格式化
env.branchName = "${env.branchName}" - "origin/"
println(env.branchName)
pipeline {
agent { label "build"}
options {
skipDefaultCheckout true
}
stages{
stage("CheckOut"){
steps{
script{
checkouts.CheckOut()
}
}
}
stage("Build"){
steps{
script{
build.Build()
}
}
}
stage("CodeScan"){
steps{
script{
sonar.SonarScannerByPlugin()
}
}
}
stage("ImageBuild"){
steps{
script{
//PushArtifactByPlugin()
//PushArtifactByPluginPOM()
// init package info
appName = "${JOB_NAME}".split('_')[0] //devops6-maven-service
repoName = appName.split('-')[0] //devops6
//commitID
commitID = checkouts.GetCommitID()
println(commitID)
// Jenkins构建显示信息
currentBuild.displayName = "第${BUILD_NUMBER}次构建-${commitID}"
currentBuild.description = "构建分支名称：${env.branchName}"
imageName = "${repoName}/${appName}"
env.imageTag = "${env.branchName}-${commitID}"
env.fullImageName = "172.29.9.120/${imageName}:${env.imageTag}"
sh """
#登录镜像仓库
docker login -u admin -p Harbor12345 172.29.9.120
# 构建镜像
docker build -t ${env.fullImageName} .
# 上传镜像
docker push ${env.fullImageName}
# 删除镜像
sleep 2
docker rmi ${env.fullImageName}
"""
}
}
}
stage("UpdateEnvFile"){
steps{
script {
// 更新部署文件
projectId = 12 //helm repo id
fileName = "values.yaml" //模板文件
branchName = "master"
//下载模板文件
fileData = mygit.GetRepoFile(projectId,fileName,branchName)
sh "rm -fr ${fileName}"
//修改镜像tag
yamlData = readYaml text: fileData
yamlData.image.tag = "${env.imageTag}"
//模板文件内容保存到本地
writeYaml file: "${fileName}" , data: yamlData
//创建/更新发布文件
newYaml = sh returnStdout: true, script: "cat ${fileName}"
println(newYaml)
//更新gitlab文件内容
base64Content = newYaml.bytes.encodeBase64().toString()
// 会有并行问题，同时更新报错
try {
mygit.UpdateRepoFile(projectId,"${fileName}",base64Content, "master")
} catch(e){
mygit.CreateRepoFile(projectId,"${fileName}",base64Content, "master")
}
}
}
}
stage("HelmPackage"){
steps{
script{
// helm pakcage & push harbor
appName = "${JOB_NAME}".split('_')[0]
sh "pwd && ls -l"
sh "mkdir -p ${appName} && cd ${appName}"
ws("${workspace}/${appName}"){
checkout([$class: 'GitSCM', branches: [[name: '*/master']],
extensions: [],
userRemoteConfigs: [[credentialsId: 'gitlab-root',
url: 'http://172.29.9.101:8076/devops6/devops6-helm-repo.git']]])
sh "ls -l"
}
//helm package
chartVersion = "${env.branchName}".split("-")[-1] //1.1.1
sh """
helm package ${appName} --version ${chartVersion}
helm-cm-push ${appName}-${chartVersion}.tgz devops6repo
"""
}
}
}
}
}
helmcd.jenkinsfile文件
@Library("devops06@main") _
def checkout = new org.devops.CheckOut()
def build = new org.devops.Build()
//使用git 参数需要格式化
env.branchName = "${env.branchName}" - "origin/"
println(env.branchName)
//commitID
env.commitID = checkouts.GetCommitID()
println(commitID)
// Jenkins构建显示信息
currentBuild.displayName = "第${BUILD_NUMBER}次构建-${env.commitID}"
currentBuild.description = "构建分支名称：${env.branchName}"
pipeline {
agent { label "build"}
options {
skipDefaultCheckout true
}
stages{
stage("GetHelmChart"){
steps{
script{
//下载helm chart
env.chartVersion = "${env.branchName}".split("-")[-1]
env.appName = "${JOB_NAME}".split('_')[0]
sh """
helm repo update devops6repo
helm pull devops6repo/${env.appName} --version ${env.chartVersion}
"""
}
}
}
stage("Deploy"){
steps{
script{
env.namespace = "${env.appName}".split('-')[0] //devops6
sh """
## 发布应用
helm upgrade --install --create-namespace "${env.appName}" ./"${env.appName}"-${env.chartVersion}.tgz -n ${env.namespace}
helm history "${env.appName}" -n ${env.namespace}
"""
// 获取应用状态
5.times{
sh "sleep 2; kubectl -n ${env.namespace} get pod | grep ${env.appName}"
}
//收集history
env.revision = sh returnStdout: true,
script: """helm history ${env.appName} -n ${env.namespace} | grep -v 'REVISION' | awk '{print \$1}' """
println("${env.revision}")
println("${env.revision.split('\n').toString()}")
env.REVISION = "${env.revision.split('\n').toString()}"
println("${env.REVISION}")
}
}
}
stage("RollOut"){
input {
message "是否进行回滚"
ok "提交"
submitter ""
parameters {
choice(choices: ['yes', 'no'], name: 'opts')
}
}
steps{
script{
switch("${opts}") {
case "yes":
def result = input message: "选择回滚版本?",
parameters: [choice(choices: env.REVISION, name: 'rversion')]
println("${result}")
sh "helm rollback ${env.appName} ${result} -n ${env.namespace} "
break
case "no":
break
}
}
}
}
}
}
关于我
我的博客主旨：
- 排版美观，语言精炼；
- 文档即手册，步骤明细，拒绝埋坑，提供源码；
- 本人实战文档都是亲测成功的，各位小伙伴在实际操作过程中如有什么疑问，可随时联系本人帮您解决问题，让我们一起进步！
微信二维码
x2675263825 （舍得）， qq：2675263825。
微信公众号
《云原生架构师实战》
语雀
https://www.yuque.com/xyy-onlyone
[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-jcxIcx9Z-1688896509333)(https://bucket-hg.oss-cn-shanghai.aliyuncs.com/img/image-20230624093747671.png)]
csdn
https://blog.csdn.net/weixin_39246554?spm=1010.2135.3001.5421
知乎
https://www.zhihu.com/people/foryouone
最后
“”“helm history ${env.appName} -n ${env.namespace} | grep -v ‘REVISION’ | awk ‘{print $1}’ “””
println(“ e n v . r e v i s i o n " ) p r i n t l n ( " {env.revision}") println(" env.revision")println("{env.revision.split(‘\n’).toString()}”)
env.REVISION = “KaTeX parse error: Undefined control sequence: \n at position 22: …evision.split('\̲n̲').toString()}"…{env.REVISION}”)
}
}
}
stage("RollOut"){
input {
message "是否进行回滚"
ok "提交"
submitter ""
parameters {
choice(choices: ['yes', 'no'], name: 'opts')
}
}
steps{
script{
switch("${opts}") {
case "yes":
def result = input message: "选择回滚版本?",
parameters: [choice(choices: env.REVISION, name: 'rversion')]
println("${result}")
sh "helm rollback ${env.appName} ${result} -n ${env.namespace} "
break
case "no":
break
}
}
}
}
}
}
## 关于我
我的博客主旨：
- 排版美观，语言精炼；
- 文档即手册，步骤明细，拒绝埋坑，提供源码；
- 本人实战文档都是亲测成功的，各位小伙伴在实际操作过程中如有什么疑问，可随时联系本人帮您解决问题，让我们一起进步！
微信二维码
x2675263825 （舍得）， qq：2675263825。
[外链图片转存中...(img-2zH5h7IE-1688896509332)]
微信公众号
《云原生架构师实战》
[外链图片转存中...(img-j8ISJdtA-1688896509332)]
语雀
https://www.yuque.com/xyy-onlyone
[外链图片转存中...(img-jcxIcx9Z-1688896509333)]
csdn
[https://blog.csdn.net/weixin_39246554?spm=1010.2135.3001.5421](https://blog.csdn.net/weixin_39246554?spm=1010.2135.3001.5421)
[外链图片转存中...(img-C9UTIB9P-1688896509333)]
知乎
[https://www.zhihu.com/people/foryouone](https://www.zhihu.com/people/foryouone)
[外链图片转存中...(img-UKUKP8qs-1688896509333)]
## 最后
好了，关于本次就到这里了，感谢大家阅读，最后祝大家生活快乐，每天都过的有意义哦，我们下期见！