DEVOPS技术实践_08:声明式管道语法

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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。

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=

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=

 > 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=

 > git rev-parse refs/remotes/origin/origin/master^{commit} # timeout=

Checking out Revision b3a39b21ac048d9298986e0d4a1d9f4dd185df8f (refs/remotes/origin/master)

 > git config core.sparsecheckout # timeout=

 > git checkout -f b3a39b21ac048d9298986e0d4a1d9f4dd185df8f

 > git branch -a -v --no-abbrev # timeout=

 > git branch -D master # timeout=

 > git checkout -b master b3a39b21ac048d9298986e0d4a1d9f4dd185df8f

Commit message: "Merge pull request #13 from jglick/Jenkinsfile"

 > git rev-list --no-walk b3a39b21ac048d9298986e0d4a1d9f4dd185df8f # timeout=

[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. (40f52333136460af0dc0d7232c0dc0bcf0d9e117; --27T11::-:)

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.-openjdk-1.8.0.222.b10-.el7_6.x86_64/jre

Default locale: en_US, platform encoding: UTF-

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---.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  source files to /root/.jenkins/workspace/jenkins_pineline_demo_utility/target/test-classes

[INFO]

[INFO] --- maven-surefire-plugin:2.18.: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: , Failures: , Errors: , Skipped: , Time elapsed: 0.002 sec - in test.OtherTest

Running test.SomeTest

Tests run: , Failures: , Errors: , Skipped: , Time elapsed: 0.001 sec - in test.SomeTest

Results :

Tests run: , Failures: , Errors: , Skipped: 

[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.: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: --26T09::-:

[INFO] ------------------------------------------------------------------------

[INFO] [jenkins-event-spy] Generated /root/.jenkins/workspace/jenkins_pineline_demo_utility@tmp/withMaven161c0da4/maven-spy---.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/

正文

一声明式管道的基本结构

1.1 node块

1.2 Stage块

1.3 Directives

1.4 Step

二 jenkins语法管道工具

2.1准备工作

2.2 使用pipeline syntax utility 创建Jenkins pipeline.

2.3 连接一个node

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

2.5 Build操作

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

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

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

2.9 构建

2.10 构建结果

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目录[+]

一 声明式管道的基本结构

1.1 node块

1.2 Stage块

1.3 Directives

1.4 Step

二 jenkins语法管道工具

2.1准备工作

2.2 使用pipeline syntax utility 创建Jenkins pipeline.

2.3 连接一个node

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

2.5 Build操作

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

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

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

2.9 构建

2.10 构建结果

相关阅读

sqlserver存储过程声明输入参数，sql server 存储过程

c语言的函数的声明部分，c语言声明和定义

mysql声明变量类型的，mysql 声明局部变量

js申明js对象存数据，js声明数据类型

面向对象声明对象方法，面向对象示例

c语言字符用什么声明，c语言怎么声明字符串变量

c语言在文件中声明函数，c语言声明函数格式

mysql数据库中声明变量，mysql变量名命名方式

目录[+]

一声明式管道的基本结构