DEVOPS技术实践_08:声明式管道语法

其他 2019-10-27 14:17:27 阅读次数: 0

简介

前面简单的做了管道的实验，看了一下的它的效果

声明式管道是Groovy语法中的一个更简单和结构化的语法。下面主要学习明式管道语法。

一 声明式管道的基本结构

以上节的代码为例

node {
   def mvnHome
   stage('Preparation') { // for display purposes
      // Get some code from a GitHub repository
      git 'https://github.com/jglick/simple-maven-project-with-tests.git'
      // Get the Maven tool.
      // ** NOTE: This 'M3' Maven tool must be configured
      // **       in the global configuration.           
      mvnHome = tool 'M3'
   }
   stage('Build') {
      // Run the maven build
      withEnv(["MVN_HOME=$mvnHome"]) {
         if (isUnix()) {
            sh '"$MVN_HOME/bin/mvn" -Dmaven.test.failure.ignore clean package'
         } else {
            bat(/"%MVN_HOME%\bin\mvn" -Dmaven.test.failure.ignore clean package/)
         }
      }
   }
   stage('Results') {
      junit '**/target/surefire-reports/TEST-*.xml'
      archiveArtifacts 'target/*.jar'
   }
}

1.1 node块

node块定义Jenkins agent，在node中定义了stage blocks, directives和steps.
node块的结构看起来如下所示：
node (‘‘) {}

下面给关于node块更详细的信息：

  • – Defines: stge,directives或者steps应该运行的节点。
  • – Constituents: 多个stage块、directives或steps.
  • – Required: Yes
  • – Parameters: Any, label

node (‘master’) { 这里的字符串master是一个参数，是告诉Jenkins去使用Jenkins master运行node里面的块内容。

如果是any的话，那就是所有的agnet的都可以去运行。

1.2 Stage块

stage块是一群相关对象的steps和directives的集合。stage块结构看起来如下所示：
stage (‘‘) {}

下面给出关于stage块的更详细信息。

  • Defines: 一组steps和directives.
  • Constituents: 多个node块、directives或者steps.
  • Required: Yes
  • Parameters: A string that is the name of the stage(mandatory)

1.3 Directives

指令的主要目标是给node block,stage block和 stage block提供以下元素：环境变量、选项、参数、触发器、工具。

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下面给出了关于stage 块的更详细信息。

  • Defines: 这个阶段应该运行的节点位置（就是在哪个节点上运行）。
  • Constituents: Environments, options, parameters, triggers, tools
  • Required: No, but every CI/CD pipeline has it.
  • Parameters: None

1.4 Step

阶段是组成声明管道的基本元素。step可以是batch脚本或者shell脚本，或者其它任何可以执行的命令。 steps有多种多样的用处，比如刻隆代码，构建代码，运行测试，上传软件到repository server，执行静态代码分析等。 在上一章节，也看到了如何使用Jenkins管道语法工具。

下面给出了关于step块的更详细信息：

  • Defines: 它告诉Jenkins干什么
  • Constituents: 命令，脚本等。它也是管道的基本块。
  • Required: No, 但每个CI/CD管道都有它。
  • Parameters: None

二 jenkins语法管道工具

Jenkins pipeline syntax utility是快速简单的创建pipeline代码的方式。

下面学习使用pipeline syntax utility重新创建pipeline

2.1准备工作

安装一个插件

  • 在Global Tool Configuration页面中配置Maven tool.
  • 安装Pipleline Maven Integration Plugin.
  • 构建Maven项目时需要Java工具，因此此处构建时使用Jenkins master.

2.2 使用pipeline syntax utility 创建Jenkins pipeline.

新建任务，取名jenkins_pineline_demo_utility,使用流水线

 点击流水线的流水线语法

 界面显示

2.3 连接一个node

 复制过来

2.4 创建两个stage块，名字分别为Preparation和Build,并复制脚本到第（3）步的编辑器中

复制过来

2.5 Build操作

复制过来

2.6 创建一个step去从GitHub服务器下载源码。并把产生的代码复制，放到Preparation 的stage块中

复制过来

2.7 产生指令告诉jenkins去使用我们先前在【全局工具配置】的M3 maven工具。，然后把代码复制到Build的stage块中

复制代码过来

2.8 针对Maven 构建命令产生一个pipeline的代码。然后把脚本内容复制到withMaven指令中去

复制代码

最终代码如下

node('master') {
    // some block
    stage('Preparation') {
    // some block
    //step
    git 'https://github.com/jglick/simple-maven-project-with-tests.git'
}
    stage('Build') {
    // some block
    //step
    withMaven(maven: 'M3') {
    // some block
    sh label: '', script: 'mvn -Dmaven.test.failuer.ignore clean package'
}
}
}

保存，并构建

2.9 构建

构建失败

修改代码

node('master') {
    // some block
    stage('Preparation') {
    // some block
    //step
    git 'https://github.com/jglick/simple-maven-project-with-tests.git'
}
    stage('Build') {
    // some block
    //step
    withMaven(maven: 'M3') {
    // some block
    sh label: '', script: 'mvn -Dmaven.test.failuer.ignore clean install package'
}
}
}

再次构建成功

2.10 构建结果

阶段视图

趋势图

控制台输出

Started by user darren ning
Running in Durability level: MAX_SURVIVABILITY
[Pipeline] Start of Pipeline
[Pipeline] node
Running on Jenkins in /root/.jenkins/workspace/jenkins_pineline_demo_utility
[Pipeline] {
[Pipeline] stage
[Pipeline] { (Preparation)
[Pipeline] git
No credentials specified
 > git rev-parse --is-inside-work-tree # timeout=10
Fetching changes from the remote Git repository
 > git config remote.origin.url https://github.com/jglick/simple-maven-project-with-tests.git # timeout=10
Fetching upstream changes from https://github.com/jglick/simple-maven-project-with-tests.git
 > git --version # timeout=10
 > git fetch --tags --progress https://github.com/jglick/simple-maven-project-with-tests.git +refs/heads/*:refs/remotes/origin/*
 > git rev-parse refs/remotes/origin/master^{commit} # timeout=10
 > git rev-parse refs/remotes/origin/origin/master^{commit} # timeout=10
Checking out Revision b3a39b21ac048d9298986e0d4a1d9f4dd185df8f (refs/remotes/origin/master)
 > git config core.sparsecheckout # timeout=10
 > git checkout -f b3a39b21ac048d9298986e0d4a1d9f4dd185df8f
 > git branch -a -v --no-abbrev # timeout=10
 > git branch -D master # timeout=10
 > git checkout -b master b3a39b21ac048d9298986e0d4a1d9f4dd185df8f
Commit message: "Merge pull request #13 from jglick/Jenkinsfile"
 > git rev-list --no-walk b3a39b21ac048d9298986e0d4a1d9f4dd185df8f # timeout=10
[Pipeline] }
[Pipeline] // stage
[Pipeline] stage
[Pipeline] { (Build)
[Pipeline] withMaven
[withMaven] Options: []
[withMaven] Available options: 
[withMaven] using JDK installation provided by the build agent
[withMaven] using Maven installation 'M3'
[Pipeline] {
[Pipeline] sh
+ mvn -Dmaven.test.failuer.ignore clean install package
----- withMaven Wrapper script -----
Picked up JAVA_TOOL_OPTIONS: -Dmaven.ext.class.path="/root/.jenkins/workspace/jenkins_pineline_demo_utility@tmp/withMaven161c0da4/pipeline-maven-spy.jar" -Dorg.jenkinsci.plugins.pipeline.maven.reportsFolder="/root/.jenkins/workspace/jenkins_pineline_demo_utility@tmp/withMaven161c0da4" 
Apache Maven 3.6.2 (40f52333136460af0dc0d7232c0dc0bcf0d9e117; 2019-08-27T11:06:16-04:00)
Maven home: /root/.jenkins/tools/hudson.tasks.Maven_MavenInstallation/M3
Java version: 1.8.0_222, vendor: Oracle Corporation, runtime: /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.222.b10-0.el7_6.x86_64/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.10.0-957.27.2.el7.x86_64", arch: "amd64", family: "unix"
[INFO] [jenkins-event-spy] Generate /root/.jenkins/workspace/jenkins_pineline_demo_utility@tmp/withMaven161c0da4/maven-spy-20191026-094419-4317832432301871131598.log.tmp ...
[INFO] Scanning for projects...
[INFO] 
[INFO] ----------------< test:simple-maven-project-with-tests >----------------
[INFO] Building simple-maven-project-with-tests 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-install-plugin/2.4/maven-install-plugin-2.4.pom
[INFO] Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-install-plugin/2.4/maven-install-plugin-2.4.pom (6.4 kB at 2.3 kB/s)
[INFO] Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-install-plugin/2.4/maven-install-plugin-2.4.jar
[INFO] Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-install-plugin/2.4/maven-install-plugin-2.4.jar (27 kB at 20 kB/s)
[INFO] 
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ simple-maven-project-with-tests ---
[INFO] Deleting /root/.jenkins/workspace/jenkins_pineline_demo_utility/target
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ simple-maven-project-with-tests ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /root/.jenkins/workspace/jenkins_pineline_demo_utility/src/main/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ simple-maven-project-with-tests ---
[INFO] No sources to compile
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ simple-maven-project-with-tests ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /root/.jenkins/workspace/jenkins_pineline_demo_utility/src/test/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ simple-maven-project-with-tests ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 3 source files to /root/.jenkins/workspace/jenkins_pineline_demo_utility/target/test-classes
[INFO] 
[INFO] --- maven-surefire-plugin:2.18.1:test (default-test) @ simple-maven-project-with-tests ---
[INFO] Surefire report directory: /root/.jenkins/workspace/jenkins_pineline_demo_utility/target/surefire-reports

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Picked up JAVA_TOOL_OPTIONS: -Dmaven.ext.class.path="/root/.jenkins/workspace/jenkins_pineline_demo_utility@tmp/withMaven161c0da4/pipeline-maven-spy.jar" -Dorg.jenkinsci.plugins.pipeline.maven.reportsFolder="/root/.jenkins/workspace/jenkins_pineline_demo_utility@tmp/withMaven161c0da4" 
Running test.OtherTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.002 sec - in test.OtherTest
Running test.SomeTest
Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 sec - in test.SomeTest

Results :

Tests run: 7, Failures: 0, Errors: 0, Skipped: 0

[INFO] 
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ simple-maven-project-with-tests ---
[WARNING] JAR will be empty - no content was marked for inclusion!
[INFO] Building jar: /root/.jenkins/workspace/jenkins_pineline_demo_utility/target/simple-maven-project-with-tests-1.0-SNAPSHOT.jar
[INFO] 
[INFO] --- maven-install-plugin:2.4:install (default-install) @ simple-maven-project-with-tests ---
[INFO] Downloading from central: https://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-utils/3.0.5/plexus-utils-3.0.5.pom
[INFO] Downloaded from central: https://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-utils/3.0.5/plexus-utils-3.0.5.pom (2.5 kB at 3.2 kB/s)
[INFO] Downloading from central: https://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus/3.1/plexus-3.1.pom
[INFO] Downloaded from central: https://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus/3.1/plexus-3.1.pom (19 kB at 17 kB/s)
[INFO] Downloading from central: https://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-digest/1.0/plexus-digest-1.0.pom
[INFO] Downloaded from central: https://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-digest/1.0/plexus-digest-1.0.pom (1.1 kB at 1.5 kB/s)
[INFO] Downloading from central: https://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-components/1.1.7/plexus-components-1.1.7.pom
[INFO] Downloaded from central: https://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-components/1.1.7/plexus-components-1.1.7.pom (5.0 kB at 7.1 kB/s)
[INFO] Downloading from central: https://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus/1.0.8/plexus-1.0.8.pom
[INFO] Downloaded from central: https://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus/1.0.8/plexus-1.0.8.pom (7.2 kB at 9.4 kB/s)
[INFO] Downloading from central: https://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-container-default/1.0-alpha-8/plexus-container-default-1.0-alpha-8.pom
[INFO] Downloaded from central: https://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-container-default/1.0-alpha-8/plexus-container-default-1.0-alpha-8.pom (7.3 kB at 11 kB/s)
[INFO] Downloading from central: https://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-utils/3.0.5/plexus-utils-3.0.5.jar
[INFO] Downloading from central: https://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-digest/1.0/plexus-digest-1.0.jar
[INFO] Downloaded from central: https://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-digest/1.0/plexus-digest-1.0.jar (12 kB at 6.6 kB/s)
[INFO] Downloaded from central: https://repo.maven.apache.org/maven2/org/codehaus/plexus/plexus-utils/3.0.5/plexus-utils-3.0.5.jar (230 kB at 83 kB/s)
[INFO] Installing /root/.jenkins/workspace/jenkins_pineline_demo_utility/target/simple-maven-project-with-tests-1.0-SNAPSHOT.jar to /root/.m2/repository/test/simple-maven-project-with-tests/1.0-SNAPSHOT/simple-maven-project-with-tests-1.0-SNAPSHOT.jar
[INFO] Installing /root/.jenkins/workspace/jenkins_pineline_demo_utility/pom.xml to /root/.m2/repository/test/simple-maven-project-with-tests/1.0-SNAPSHOT/simple-maven-project-with-tests-1.0-SNAPSHOT.pom
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ simple-maven-project-with-tests ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /root/.jenkins/workspace/jenkins_pineline_demo_utility/src/main/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ simple-maven-project-with-tests ---
[INFO] No sources to compile
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ simple-maven-project-with-tests ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /root/.jenkins/workspace/jenkins_pineline_demo_utility/src/test/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ simple-maven-project-with-tests ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] --- maven-surefire-plugin:2.18.1:test (default-test) @ simple-maven-project-with-tests ---
[INFO] Skipping execution of surefire because it has already been run for this configuration
[INFO] 
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ simple-maven-project-with-tests ---
[WARNING] JAR will be empty - no content was marked for inclusion!
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  14.193 s
[INFO] Finished at: 2019-10-26T09:44:33-04:00
[INFO] ------------------------------------------------------------------------
[INFO] [jenkins-event-spy] Generated /root/.jenkins/workspace/jenkins_pineline_demo_utility@tmp/withMaven161c0da4/maven-spy-20191026-094419-4317832432301871131598.log
[Pipeline] }
[withMaven] artifactsPublisher - Archive artifact pom.xml under test/simple-maven-project-with-tests/1.0-SNAPSHOT/simple-maven-project-with-tests-1.0-SNAPSHOT.pom
[withMaven] artifactsPublisher - Archive artifact target/simple-maven-project-with-tests-1.0-SNAPSHOT.jar under test/simple-maven-project-with-tests/1.0-SNAPSHOT/simple-maven-project-with-tests-1.0-SNAPSHOT.jar
[withMaven] junitPublisher - Archive test results for Maven artifact test:simple-maven-project-with-tests:jar:1.0-SNAPSHOT generated by maven-surefire-plugin:test (default-test): target/surefire-reports/*.xml
[withMaven] junitPublisher - Archive test results for Maven artifact test:simple-maven-project-with-tests:jar:1.0-SNAPSHOT generated by maven-surefire-plugin:test (default-test): target/surefire-reports/*.xml
[withMaven] junitPublisher - Jenkins JUnit Attachments Plugin not found, can't publish test attachments.Recording test results
[withMaven] Jenkins Task Scanner Plugin not found, don't display results of source code scanning for 'TODO' and 'FIXME' in pipeline screen.
[withMaven] Publishers: Pipeline Graph Publisher: 14 ms, Generated Artifacts Publisher: 23 ms, Junit Publisher: 13 ms, Open Task Scanner Publisher: 1 ms
[Pipeline] // withMaven
[Pipeline] }
[Pipeline] // stage
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
Finished: SUCCESS

 基本成功

 参考文档：https://blog.xiodi.cn/2018/07/18/%e4%b8%89-jenkins%e7%9a%84%e6%96%b0%e5%8a%9f%e8%83%bd%e4%b9%8b%e4%b8%89-jenkins%e7%ae%a1%e9%81%93%e8%af%ad%e6%b3%95%e5%ae%9e%e7%94%a8%e7%a8%8b%e5%ba%8f/

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