jenkins简介
jenkins自动化部署可以解决集成、测试、部署等重复性的工作,工具集成的效率明显高于人工操作;并且持续集成可以更早的获取代码变更的信息,从而更早的进入测试阶段,更早的发现问题,这样解决问题的成本就会显著下降:持续集成缩短了从开发、集成、测试、部署各个环节的时间,从而也就缩短了中间出现的等待时间;持续集成也意味着开发、集成、测试、部署得以持续。
jenkins的主要特点和功能:
- 自动化构建:jenkins可以从版本控制系统(如git、svn等)中获取源代码,并根据预定义的构建脚本进行自动化构建。它支持各种构建工具和构建环境,如maven、gradle、ant等。
- 持续集成:jenkins可以在代码提交到版本控制系统后自动触发构建过程,进行代码编译、单元测试、集成测试等,并生成构建报告和测试报告。它可以与各种测试框架和工具集成,如junit、testng、selenium等。
- 持续交付和部署:jenkins可以将构建好的软件包自动部署到目标环境中,如开发、测试、生产环境等。它支持各种部署方式和工具,如shell脚本、docker、kubernetes等。
- 可扩展性:jenkins提供了丰富的插件和扩展机制,可以满足不同团队和项目的需求。开发人员可以编写自定义插件,或者使用已有的插件来扩展jenkins的功能。
- 可视化界面:jenkins提供了直观的web界面,可以方便地查看和管理构建、测试和部署的状态和结果。它还提供了丰富的报表和图表,帮助团队了解项目的健康状况和性能指标。
环境准备:
部署jenkins前先部署tomcat,tomcat部署方法请参考:
jenkins部署
下载jenkins软件包
下载地址:jenkins download and deployment
[root@localhost ~]# wget https://get.jenkins.io/war-stable/2.414.2/jenkins.war ... length: 89532729 (85m) [application/java-archive] saving to: ‘jenkins.war' jenkins.war 100%[===========================================================>] 85.38m 299kb/s in 3m 15s 2023-10-11 14:07:07 (448 kb/s) - ‘jenkins.war' saved [89532729/89532729] [root@localhost ~]# [root@localhost ~]# ls anaconda-ks.cfg apache-tomcat-9.0.65.tar.gz jenkins.war [root@localhost ~]#
将jenkins.war文件拷贝至webapps目录下
[root@localhost ~]# cd /usr/local/tomcat/webapps/ [root@localhost webapps]# [root@localhost webapps]# ls docs examples host-manager manager root [root@localhost webapps]# [root@localhost webapps]# cp /root/jenkins.war . [root@localhost webapps]# ls docs examples host-manager jenkins.war manager root [root@localhost webapps]#
编辑server.xml配置文件
开启ajp协议,用于tomcat跟apache的效率,注意如果有多个tomcat,则改一下端口号,比如8009变8010
[root@localhost ~]# cd /usr/local/tomcat/conf/ [root@localhost conf]# ls catalina catalina.properties jaspic-providers.xml logging.properties tomcat-users.xml web.xml catalina.policy context.xml jaspic-providers.xsd server.xml tomcat-users.xsd [root@localhost conf]# [root@localhost conf]# vim server.xml ... <!-- define an ajp 1.3 connector on port 8009 --> <connector protocol="ajp/1.3" address="::1" port="8009" redirectport="8443" /> ... "server.xml" 168l, 7563c written [root@localhost conf]#
重启服务,jenkins.war包会自动解压缩
[root@localhost webapps]# cd .. [root@localhost tomcat]# ./bin/catalina.sh stop using catalina_base: /usr/local/tomcat using catalina_home: /usr/local/tomcat using catalina_tmpdir: /usr/local/tomcat/temp using jre_home: /usr using classpath: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar using catalina_opts: note: picked up jdk_java_options: --add-opens=java.base/java.lang=all-unnamed --add-opens=java.base/java.io=all-unnamed --add-opens=java.base/java.util=all-unnamed --add-opens=java.base/java.util.concurrent=all-unnamed --add-opens=java.rmi/sun.rmi.transport=all-unnamed [root@localhost tomcat]# [root@localhost tomcat]# [root@localhost tomcat]# ./bin/catalina.sh start using catalina_base: /usr/local/tomcat using catalina_home: /usr/local/tomcat using catalina_tmpdir: /usr/local/tomcat/temp using jre_home: /usr using classpath: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar using catalina_opts: tomcat started. [root@localhost tomcat]# [root@localhost tomcat]# ss -anlt state recv-q send-q local address:port peer address:port process listen 0 128 0.0.0.0:22 0.0.0.0:* listen 0 1 [::ffff:127.0.0.1]:8005 *:* listen 0 100 [::1]:8009 [::]:* listen 0 100 *:8080 *:* listen 0 128 [::]:22 [::]:* [root@localhost tomcat]# [root@localhost tomcat]# cd webapps/ [root@localhost webapps]# ls docs host-manager jenkins.war root examples jenkins manager [root@localhost webapps]#
访问网页解锁 jenkins
[root@localhost webapps]# cat /root/.jenkins/secrets/initialadminpassword d4871675ae814d8ea501b87f853b94f6 [root@localhost webapps]#
选择安装推荐的插件
等待安装完成
创建管理员用户
用户名,密码和邮箱自定义
登录成功
使用jenkins部署项目
安装拉取项目和打包项目的工具
[root@localhost ~]# yum -y install git maven
手动拉取项目测试
[root@localhost ~]# git clone https://gitee.com/forgotten/tomcat-java-demo.git cloning into 'tomcat-java-demo'... remote: enumerating objects: 558, done. remote: total 558 (delta 0), reused 0 (delta 0), pack-reused 558 receiving objects: 100% (558/558), 5.08 mib | 536.00 kib/s, done. resolving deltas: 100% (217/217), done. [root@localhost ~]# ls anaconda-ks.cfg apache-tomcat-9.0.65.tar.gz jenkins.war tomcat-java-demo [root@localhost ~]#
将java版本更换为17
[root@localhost ~]# alternatives --config java there are 2 programs which provide 'java'. selection command ----------------------------------------------- 1 java-17-openjdk.x86_64 (/usr/lib/jvm/java-17-openjdk-17.0.1.0.12-2.el8_5.x86_64/bin/java) *+ 2 java-1.8.0-openjdk.x86_64 (/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.312.b07-2.el8_5.x86_64/jre/bin/java) enter to keep the current selection[+], or type selection number: 1 [root@localhost ~]#
手动打包测试
[root@localhost tomcat-java-demo]# mvn clean package ... [info] packaging webapp [info] assembling webapp [ly-simple-tomcat] in [/root/tomcat-java-demo/target/ly-simple-tomcat-0.0.1-snapshot] ... [root@localhost tomcat-java-demo]# [root@localhost tomcat-java-demo]# cd target/ [root@localhost target]# ls classes generated-sources ly-simple-tomcat-0.0.1-snapshot ly-simple-tomcat-0.0.1-snapshot.war maven-archiver maven-status [root@localhost target]#
创建一个流水线任务
编写一个hello world 流水线脚本
点击test,然后点击立即构建
构建成功
生成拉取脚本,编写流水线脚本
仓库url下面填写你要拉取的项目地址
生成拉取脚本后,编写流水线脚本
点击立即构建
拉取成功
查看流水线脚本拉取的项目
[root@localhost ~]# ls -a . anaconda-ks.cfg .bash_history .bash_profile .cshrc .java jenkins.war .tcshrc .wget-hsts .. apache-tomcat-9.0.65.tar.gz .bash_logout .bashrc .groovy .jenkins .m2 .viminfo [root@localhost ~]# [root@localhost ~]# cd .jenkins/ [root@localhost .jenkins]# [root@localhost .jenkins]# ls ... jenkins.install.upgradewizard.state plugins users jenkins.model.jenkinslocationconfiguration.xml queue.xml workspace jenkins.telemetry.correlator.xml queue.xml.bak [root@localhost .jenkins]# [root@localhost .jenkins]# cd workspace/test/ [root@localhost test]# ls db deploy.yaml dockerfile jenkinsfile license pom.xml readme.md src [root@localhost test]#
安装maven打包插件
选择需要安装的插件
点击安装
安装完成
手动打包成功后编写流水线脚本
流水线脚本代码
pipeline { agent any stages { stage('pull code and package') { steps { git 'https://gitee.com/forgotten/tomcat-java-demo' sh 'mvn clean package -dmaven.test.skip=true' } } stage("deploy"){ steps { sh 'cp /root/tomcat-java-demo/target/ly-simple-tomcat-0.0.1-snapshot.war /usr/local/tomcat/webapps' sh '/usr/local/tomcat/bin/catalina.sh stop && /usr/local/tomcat/bin/catalina.sh start' } } } }
构建成功
流水线构建完成后webapps目录下可以看到拷贝和解压的ly-simple-tomcat-0.0.1-snapshot.war文件,服务重启后会自动解压war类型的文件
[root@localhost ~]# cd /usr/local/tomcat/webapps/ [root@localhost webapps]# [root@localhost webapps]# ls docs host-manager jenkins.war ly-simple-tomcat-0.0.1-snapshot.war root examples jenkins ly-simple-tomcat-0.0.1-snapshot manager test [root@localhost webapps]#
访问网页,在地址栏端口号后面加上 /ly-simple-tomcat-0.0.1-snapshot/
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