DEVOPS技术实践_08:Jenkins多分支管道

简介

多分支的管道是在jenkins2.x中新增的功能 。

多分支管道允许你针对分布式的控制器的每个分支创建一个管道。 下图是对它的一个描述。使用jenkinsfile去创建多分支的管道，jenkinsfile可以存放在代码仓库中。 Jenkinsfile只是定义CI管道的一个脚本。

另外，多分支管道的设计初衷就是当Git仓库中的代码改变时，去自动触发构建。下图是对它的一个描述。

一. 准备工作

（1）在【全局工具配置】中Maven工具已经配置好。
（2）安装了【Pipeline Maven Integration Plugin】
（3）Java工具也需要安装好，由于我们构建是在jenkins master上执行，所以可以跳过此步（因为我们在安装Jenkins时，已经安装好Java）
（4）安装Gitlab插件，本实验使用gitlab做为代码管理

添加gitlab凭据到jenkins中

添加全局凭据

二. 从jenkins中配置在Gitlab服务器的webhooks

 gitlab创建个人访问令牌(personal access token)

2.1 登录到gitlab，点击Settings

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2.2 在右侧菜单栏中，点击Access Tokens

2.3 输入令牌名称、到期时间、令牌作用域等选项，点击Create personal access token按钮

2.4 查看生成的个人访问令牌，并保存到安全位置，页面刷新后将无法查看

jenkins添加gitlab

2.5 添加凭据

 添加后，test测试报错

点击高级模式，选择API-levle为v3

升级git版本

[root@node1 ~]# wget https://github.com/git/git/archive/v2.2.1.tar.gz

[root@node1 ~]# tar -xf v2.2.1.tar.gz 

[root@node1 ~]# cd git-2.2.1/

[root@node1 git-2.2.1]# yum install perl-ExtUtils-MakeMaker

[root@node1 git-2.2.1]# yum install zlib-devel 

[root@node1 git-2.2.1]# make configure
GIT_VERSION = 2.2.1
GEN configure

[root@node1 git-2.2.1]# ./configure --prefix=/usr/local/git --with-iconv=/usr/local/libiconv

[root@node1 git-2.2.1]# make 

[root@node1 git-2.2.1]# make  install

[root@node1 git-2.2.1]# ln -s /usr/local/git/bin/git  /usr/bin/

[root@node1 git-2.2.1]# git --version

git version 2.2.1

问题依然出现，最后排查的过程中发现，复制的不是真正的token，这是坑爹的地方

 

 2.6 jenkins查看成功

安装成功

三 创建一个多分支

3.1 编辑jenkinsfile

 node ('master') { 
    checkout scm 
    stage('Build') { 
      withMaven(maven: 'M3') { 
        if (isUnix()) { 
          sh 'mvn -Dmaven.test.failure.ignore clean install package' 
        }  
        else { 
          bat 'mvn -Dmaven.test.failure.ignore clean install package' 
        } 
      } 
    }   
    stage('Results') { 
      junit '**/target/surefire-reports/TEST-*.xml' 
      archive 'target/*.jar' 
    } 
  } installinstall

提交，开始创建多分枝流水线

3.2 创建多分枝项目

3.3 Trouble Shootting

出现错误：是因为 /usr/libexec/git-core/ 路径没在 PATH 环境变量中。

Started by user darren ning
[Sat Oct 26 14:12:57 EDT 2019] Starting branch indexing...
 > git --version # timeout=10
using GIT_ASKPASS to set credentials 
 > git ls-remote http://192.168.132.132/root/simple-maven-project-with-tests.git # timeout=10
ERROR: [Sat Oct 26 14:12:57 EDT 2019] Could not update folder level actions from source 9d2e73ea-7ee8-4128-a8b2-0d7f20e75599
hudson.plugins.git.GitException: Command "git ls-remote http://192.168.132.132/root/simple-maven-project-with-tests.git" returned status code 128:
stdout: 
stderr: fatal: Unable to find remote helper for 'http'

    at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2042)
    at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1761)
    at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1666)
    at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1657)
    at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.getRemoteReferences(CliGitAPIImpl.java:2877)
    at jenkins.plugins.git.AbstractGitSCMSource.retrieveActions(AbstractGitSCMSource.java:1139)
    at jenkins.scm.api.SCMSource.fetchActions(SCMSource.java:848)
    at jenkins.branch.MultiBranchProject.computeChildren(MultiBranchProject.java:592)
    at com.cloudbees.hudson.plugins.folder.computed.ComputedFolder.updateChildren(ComputedFolder.java:277)
    at com.cloudbees.hudson.plugins.folder.computed.FolderComputation.run(FolderComputation.java:164)
    at jenkins.branch.MultiBranchProject$BranchIndexing.run(MultiBranchProject.java:1026)
    at hudson.model.ResourceController.execute(ResourceController.java:97)
    at hudson.model.Executor.run(Executor.java:429)
[Sat Oct 26 14:12:57 EDT 2019] Finished branch indexing. Indexing took 19 ms
FATAL: Failed to recompute children of simple-maven-project-with-tests
hudson.plugins.git.GitException: Command "git ls-remote http://192.168.132.132/root/simple-maven-project-with-tests.git" returned status code 128:
stdout: 
stderr: fatal: Unable to find remote helper for 'http'

    at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2042)
    at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1761)
    at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1666)
    at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1657)
    at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.getRemoteReferences(CliGitAPIImpl.java:2877)
    at jenkins.plugins.git.AbstractGitSCMSource.retrieveActions(AbstractGitSCMSource.java:1139)
    at jenkins.scm.api.SCMSource.fetchActions(SCMSource.java:848)
    at jenkins.branch.MultiBranchProject.computeChildren(MultiBranchProject.java:592)
    at com.cloudbees.hudson.plugins.folder.computed.ComputedFolder.updateChildren(ComputedFolder.java:277)
    at com.cloudbees.hudson.plugins.folder.computed.FolderComputation.run(FolderComputation.java:164)
    at jenkins.branch.MultiBranchProject$BranchIndexing.run(MultiBranchProject.java:1026)
    at hudson.model.ResourceController.execute(ResourceController.java:97)
    at hudson.model.Executor.run(Executor.java:429)
Finished: FAILURE

添加xport PATH=/usr/libexec/git-core:$PATH到/etc/profile里

在此执行

3.4 控制台输出

Started by user darren ning
[Sat Oct 26 14:30:07 EDT 2019] Starting branch indexing...
 > git --version # timeout=10
using GIT_ASKPASS to set credentials 
 > git ls-remote http://192.168.132.132/root/simple-maven-project-with-tests.git # timeout=10
Creating git repository in /root/.jenkins/caches/git-308bd15be61318b6e1166e23433fdd72
 > git init /root/.jenkins/caches/git-308bd15be61318b6e1166e23433fdd72 # timeout=10
Setting origin to http://192.168.132.132/root/simple-maven-project-with-tests.git
 > git config remote.origin.url http://192.168.132.132/root/simple-maven-project-with-tests.git # timeout=10
Fetching & pruning origin...
Listing remote references...
 > git config --get remote.origin.url # timeout=10
 > git --version # timeout=10
using GIT_ASKPASS to set credentials 
 > git ls-remote -h http://192.168.132.132/root/simple-maven-project-with-tests.git # timeout=10
Fetching upstream changes from origin
 > git config --get remote.origin.url # timeout=10
using GIT_ASKPASS to set credentials 
 > git fetch --tags --progress origin +refs/heads/*:refs/remotes/origin/* --prune
Checking branches...
  Checking branch master
      ‘Jenkinsfile’ found
    Met criteria
Scheduled build for branch: master
  Checking branch feature
      ‘Jenkinsfile’ found
    Met criteria
Scheduled build for branch: feature
Processed 2 branches
[Sat Oct 26 14:30:08 EDT 2019] Finished branch indexing. Indexing took 1 sec
Finished: SUCCESS

 

已经完成