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CodeReview实践-Gerrit自动触发JenkinsCI
love374
发布于 2023-7-24 16:19
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Gerrit + Jenkins
背景
当前团队使用Gerrit来做代码管理、CodeReview。计划实现当review提交到了Gerrit并且review通过（merged）自动触发Jenkins流水线。以前接触Gitlab比较多，Gerrit还是第一次开始用，踩了点坑记录下来。本文主要讲述Gerrit Trigger流水线配置，关于服务器配置等细节问题暂不研究，降低复杂性。
Gerrit 配置
我们可以通过Docker的方式快速启动一个Gerrit实例，默认Gerrit使用的是HTTP 8080端口、SSH29418端口。通过CANONICAL_WEB_URL参数指定服务器网页地址。
docker run --name gerrit -itd \
-p 8088:8080 \
-p 29418:29418 \
-e CANONICAL_WEB_URL=http://192.168.1.200:8088 gerritcodereview/gerrit启动成功后，默认打开的是一个插件安装的页面，此时可以根据个人需要安装相关插件，也可以跳过。
默认登录就是admin, 创建一个Jenkins用户。
登录Jenkins用户然后配置SSH-KEY，创建ssh-key添加到jenkins用户配置中。
[root@zeyang-nuc-service ~]# kubectl exec -it jenkins-6ccf555769-sfdw6 -n devops bash
bash-4.2$ id
uid=1000(jenkins) gid=1000(jenkins) groups=1000(jenkins)
bash-4.2$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/var/jenkins_home/.ssh/id_rsa):
Created directory '/var/jenkins_home/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /var/jenkins_home/.ssh/id_rsa.
Your public key has been saved in /var/jenkins_home/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:nGqkSVAUuc2xrGe8Bz/xuWcQ/YVrDISPJux+tCZkJgI jenkins@jenkins-6ccf555769-sfdw6
The key's randomart image is:
+---[RSA 2048]----+
| .+o . |
| .. . . . |
| . = + = . |
| E.. =.o.+ + . .|
| ..o..So . + o |
| .o+*.* o = |
| o+oX + + . |
| .. * * o |
| . =.+ |
+----[SHA256]-----+默认的key在JENKINS_HOME目录中/var/jenkins_home/.ssh/id_rsa。
bash-4.2$ cat /var/jenkins_home/.ssh/id_rsa.pub
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCb+BcXnBXG4f4T3MSDsL/aNLm4zlMkX5xn5pwC4eaep+XMe9kXMsYJZ3xuQ1dxUTAeTHAYX33IsclpE63H0nXdNj8cgcC9dnyXFYGieKfSx44JeP3O4rcMFN+cPGlEcIVJdTF8RfpvDANObCUJ0fnsw7f/yVImdwqGbXaBsU11+s6uRuCghXUw1JhA4H+mVp89YZN7ilhif4I8rol/cUkcKnQhxM0ziClWL5VLBTfpO5QNhj+vy2JICMSgU93EEs0LgBUdT2Q+1tduQo3R7fNOkQm46y1oonoUMzXTr9/kOlcAxZR9kIT7WYPxGQGCoyf2AiMP3VKwowv98MenDCFZ jenkins@jenkins-6ccf555769-sfdw6这里使用的是id_rsa.pub，复制文件内容，然后添加到Gerrit Jenkins用户中。（记得点击ADD）
将Jenkins用户加入Non-interactive Users组。BROWSE>Groups>Non-Interactive Users>Members。
创建一个仓库，然后简单的设置下repo权限：
refs/* ：read Non-interactive Users
refs/heads/* : Label Code-Review Non-interactive Users
Gerrit 2.7+ 创建一个组Event Streaming Users，将Jenkins用户加入。
设置All-projects access 权限， BROWSE> repos>All-Projects>Access>Global Capabilities >Stream Events 。
allow Event Streaming Users
到此，Gerrit配置基本上已经完成了，页面样式很简洁。
Jenkins配置
首先我们安装Gerrit Hook插件，然后进入系统管理会看到gerrit的图标。
Connection error : com.jcraft.jsch.JSchException: Auth fail 错误一般是ssh-key问题。
在流水线项目中添加Gerrit Trigger.
Ok，Jenkins的配置完成了。接下来开始测试自动触发。
创建codereview
[root@zeyang-nuc-service devops]# ls
aa,txt aasss,txt sss test.txt
[root@zeyang-nuc-service devops]# echo 123 >test.txt
[root@zeyang-nuc-service devops]# git add .
[root@zeyang-nuc-service devops]# git commit -m "init"
[master 77f6474] init
1 file changed, 1 insertion(+), 1 deletion(-)
[root@zeyang-nuc-service devops]# git push origin HEAD:refs/for/master
Username for 'http://192.168.1.200:8088': admin
Password for 'http://admin@192.168.1.200:8088':
Enumerating objects: 3, done.
Counting objects: 100% (3/3), done.
Delta compression using up to 8 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (2/2), 253 bytes | 253.00 KiB/s, done.
Total 2 (delta 1), reused 0 (delta 0)
remote: Resolving deltas: 100% (1/1)
remote: Processing changes: refs: 1, new: 1, done
remote:
remote: SUCCESS
remote:
remote: http://192.168.1.200:8088/c/devops/+/21 init [NEW]
remote:
To http://192.168.1.200:8088/devops
* [new branch] HEAD -> refs/for/mastermerge 测试
Gerrit传递的参数还是挺多的，可以很方便的获取。基本上这些参数就够用了。
Pipeline As Code
//Pipeline params
String BRANCH_NAME = "${env.GERRIT_BRANCH}"
String PROJECT_NAME = "devops"
String PROJECT_URL = "http://192.168.1.200:8088/devops"
currentBuild.description = "Trigger By ${BRANCH_NAME}"
//Pipeline
pipeline{
agent {
node { label "build" //指定运行节点的标签或者名称
}
}
options{
skipDefaultCheckout()
}
triggers {
//配置gerrit触发器
gerrit customUrl: '',
gerritProjects: [[branches: [[compareType: 'ANT', pattern: '**']],
compareType: 'PLAIN',
disableStrictForbiddenFileVerification: false,
pattern: "${PROJECT_NAME}"]],
serverName: 'devops',
triggerOnEvents: [changeMerged()]
}
stages{
stage("GetCode"){
steps{
echo "========executing GetCode========"
//下载代码
checkout([$class: 'GitSCM', branches: [[name: "${BRANCH_NAME}"]],
doGenerateSubmoduleConfigurations: false,
extensions: [],
submoduleCfg: [],
userRemoteConfigs: [[url: "${PROJECT_URL}"]]])
}
}
}
post{
always{
echo "========always========"
cleanWs()
}
success{
echo "========pipeline executed successfully ========"
}
failure{
echo "========pipeline execution failed========"
}
}
}到此基本上触发就已经完成了，后续添加构建和发布步骤。Gerrit进行CodeReview还是很方便的，现在每次提交的代码、Jenkinsfile都需要先进行CodeReview才能进行merge。
文章转载自公众号：DevOps云学堂
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已于2023-7-24 16:19:34修改
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