项目案例之Pipeline流水线发布JAVA项目（三）

项目案例之Pipeline流水线发布JAVA项目（三）

链接：https://pan.baidu.com/s/1NZZbocZuNwtQS0eGkkglXQ
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6. 项目案例二：流水线自动化发布JAVA项目

主机名	IP地址	备注
Git	192.168.200.61	Git服务器
Jenkins	192.168.200.62	Jenkins服务器
Web01	192.168.200.65	Tomcat服务器

#所有服务器进行如下操作
[root@Git ~]# cat /etc/redhat-release 
CentOS Linux release 7.5.1804 (Core) 
[root@Git ~]# uname -r
3.10.0-862.3.3.el7.x86_64
[root@Git ~]# systemctl stop firewalld
[root@Git ~]# systemctl disable firewalld
[root@Git ~]# systemctl stop NetworkManager
[root@Git ~]# systemctl disable NetworkManager

6.1 Tomcat服务器环境部署

#在tomcat服务器进行如下操作
#部署jdk
[root@Web02 ~]# ls
anaconda-ks.cfg  apache-maven-3.5.0-bin.tar.gz  apache-tomcat-8.5.33.tar.gz  jdk-8u171-linux-x64.tar.gz
[root@Web02 ~]# tar xf jdk-8u171-linux-x64.tar.gz -C /usr/local/
[root@Web02 ~]# cd /usr/local/
[root@Web02 local]# mv jdk1.8.0_171 jdk
[root@Web02 local]# ln -s /usr/local/jdk/bin/java /usr/local/bin/
[root@Web02 local]# java -version
java version "1.8.0_171"
Java(TM) SE Runtime Environment (build 1.8.0_171-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.171-b11, mixed mode)

#部署java环境变量
[root@Web02 local]# vim /etc/profile
[root@Web02 local]# tail -4 /etc/profile
#部署java环境变量
export JAVA_HOME=/usr/local/jdk/
export PATH=$PATH:$JAVA_HOME/bin
export CLASSPATH=.:$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar:$CLASSPATH
[root@Web02 local]# source /etc/profile

#部署maven
[root@Web02 ~]# tar xf apache-maven-3.5.0-bin.tar.gz -C /usr/local
[root@Web02 ~]# cd /usr/local/
[root@Web02 local]# mv apache-maven-3.5.0 maven
[root@Web02 local]# ln -s /usr/local/maven/bin/mvn /usr/local/bin/
[root@Web02 local]# mvn -version
Apache Maven 3.5.0 (ff8f5e7444045639af65f6095c62210b5713f426; 2017-04-04T03:39:06+08:00)
Maven home: /usr/local/maven
Java version: 1.8.0_171, vendor: Oracle Corporation
Java home: /usr/local/jdk/jre
Default locale: zh_CN, platform encoding: UTF-8
OS name: "linux", version: "3.10.0-862.14.4.el7.x86_64", arch: "amd64", family: "unix"

#部署maven环境变量
[root@Web02 local]# vim /etc/profile
[root@Web02 local]# tail -3 /etc/profile
#部署maven环境变量
export MAVEN_HOME=/usr/local/maven
export PATH=$PATH:${MAVEN_HOME}
[root@Web02 local]# source /etc/profile

#解压tomcat
[root@Web02 ~]# tar xf apache-tomcat-8.5.33.tar.gz -C /usr/local/
[root@Web02 ~]# cd /usr/local/
[root@Web02 local]# mv apache-tomcat-8.5.33 tomcat
[root@Web02 local]# cd tomcat/
[root@Web02 tomcat]# ls
bin           conf             lib      logs    README.md      RUNNING.txt  webapps
BUILDING.txt  CONTRIBUTING.md  LICENSE  NOTICE  RELEASE-NOTES  temp         work
[root@Web02 tomcat]# rm -rf webapps/*
[root@Web02 tomcat]# ls webapps/
[root@Web02 tomcat]# 

#部署tomcat环境变量
[root@Web02 tomcat]# vim /etc/profile
[root@Web02 tomcat]# tail -2 /etc/profile
#部署tomcat环境变量
export TOMCAT_HOME=/usr/local/tomcat
[root@Web02 tomcat]# source /etc/profile

#自动部署需要解压maven构建后的war包，因此需要安装unzip
[root@Web02 tomcat]# yum -y install unzip
[root@Web02 tomcat]# rpm -qa unzip
unzip-6.0-19.el7.x86_64

#自动部署需要git远程仓库代码，因此需要安装git
[root@Web02 tomcat]# yum -y install git
[root@Web02 tomcat]# rpm -qa git
git-1.8.3.1-14.el7_5.x86_64

6.2 构建一个B-JAVA流水线项目

6.3 下载solo项目源代码并上传Git远程仓库

solo源代码下载地址 https://github.com/b3log/solo

#在Git服务器上创建用于存放solo源代码的仓库
[root@Git ~]# hostname -I
192.168.200.61 
[root@Git ~]# cd /home/git/repos/
[root@Git repos]# mkdir solo.git
[root@Git repos]# cd solo.git/
[root@Git solo.git]# git --bare init
初始化空的 Git 版本库于 /home/git/repos/solo.git/
[root@Git solo.git]# cd ..
[root@Git repos]# chown -R git.git solo.git

#在jenkins服务器上进行如下操作
#解压solo.tar.gz源代码包
[root@Jenkins ~]# tar xf solo.tar.gz
[root@Jenkins ~]# mkdir -p /mycode
[root@Jenkins ~]# cd /mycode/
[root@Jenkins mycode]# git clone git@192.168.200.61:/home/git/repos/solo.git
正克隆到 'solo'...
warning: 您似乎克隆了一个空版本库。
[root@Jenkins mycode]# ls
solo
[root@Jenkins mycode]# cd solo/
[root@Jenkins solo]# ls
[root@Jenkins solo]# mv /root/solo/* .
[root@Jenkins solo]# ls
CHANGE_LOGS.html    Dockerfile   LICENSE       pom.xml    README_zh_CN.md
docker-compose.yml  gulpfile.js  package.json  README.md  src
[root@Jenkins solo]# rm -rf /root/solo

#为了最后的测试，我们需要修改源代码的一个配置文件
[root@Jenkins solo]# cd src/main/resources/
[root@Jenkins resources]# ll -d latke.properties 
-rw-r--r-- 1 root root 1241 10月 25 14:29 latke.properties
[root@Jenkins resources]# vim latke.properties 
[root@Jenkins resources]# cat -n latke.properties | sed -n '29p;31p'
    29	serverHost=192.168.200.65
    31	serverPort=8080
    

#将solo源代码提交到Git仓库
[root@Jenkins resources]# cd /mycode/solo/
[root@Jenkins solo]# git add *
[root@Jenkins solo]# git commit -m "第一次提交"
[root@Jenkins solo]# git push -u origin master
[root@Jenkins solo]# git push -u origin master
Counting objects: 2099, done.
Compressing objects: 100% (2044/2044), done.
Writing objects: 100% (2099/2099), 27.44 MiB | 9.27 MiB/s, done.
Total 2099 (delta 367), reused 0 (delta 0)
To git@192.168.200.61:/home/git/repos/solo.git
 * [new branch]      master -> master
分支 master 设置为跟踪来自 origin 的远程分支 master。

#将代码克隆到本地进行克隆验证
[root@Jenkins solo]# mkdir -p /test
[root@Jenkins solo]# cd /test/
[root@Jenkins test]# git clone git@192.168.200.61:/home/git/repos/solo.git
正克隆到 'solo'...
remote: Counting objects: 2099, done.
remote: Compressing objects: 100% (1677/1677), done.
remote: Total 2099 (delta 367), reused 2099 (delta 367)
接收对象中: 100% (2099/2099), 27.44 MiB | 22.41 MiB/s, done.
处理 delta 中: 100% (367/367), done.
[root@Jenkins test]# ls
solo
[root@Jenkins test]# cd solo/
[root@Jenkins solo]# ls
CHANGE_LOGS.html    Dockerfile   LICENSE       pom.xml    README_zh_CN.md
docker-compose.yml  gulpfile.js  package.json  README.md  src

6.4 创建一个流水线脚本并提交Git远程仓库

#在jenkins服务器上进行如下操作
[root@Jenkins ~]# mkdir -p /jenkinsfile
[root@Jenkins ~]# cd /jenkinsfile/
[root@Jenkins jenkinsfile]# git clone git@192.168.200.61:/home/git/repos/jenkinsfile
正克隆到 'jenkinsfile'...
remote: Counting objects: 20, done.
remote: Compressing objects: 100% (17/17), done.
remote: Total 20 (delta 3), reused 0 (delta 0)
接收对象中: 100% (20/20), done.
处理 delta 中: 100% (3/3), done.

[root@Jenkins jenkinsfile]# ls
jenkinsfile
[root@Jenkins jenkinsfile]# cd jenkinsfile/
[root@Jenkins jenkinsfile]# ls
itemA

[root@Jenkins jenkinsfile]# mkdir itemB
[root@Jenkins jenkinsfile]# cd itemB/
[root@Jenkins jenkinsfile]# vim itemB/jenkinsfile-java-solo
[root@Jenkins jenkinsfile]# cat itemB/jenkinsfile-java-solo
node ("PHP-slave2-192.168.200.65") {
   stage('git checkout') {
      checkout([$class: 'GitSCM', branches: [[name: '${branch}']], 
      doGenerateSubmoduleConfigurations: false, extensions: [],submoduleCfg: [], 
      userRemoteConfigs: [[credentialsId: 'f58165e3-e5a7-408a-a57d-a4b643b14308', 
      url: 'git@192.168.200.61:/home/git/repos/solo.git']]])
   }
   stage('maven build') {
      sh '/usr/local/maven/bin/mvn clean package -Dmaven.test.skip=true'
   }
   stage('deploy') {
      sh '''WWWROOT=/usr/local/tomcat/webapps/ROOT
      [ -d /data/backup ] || mkdir -p /data/backup
      if [ -d $WWWROOT ];then
         mv $WWWROOT /data/backup/tomcat-$(date +%F_%T)
      fi
      unzip ${WORKSPACE}/target/*.war -d $WWWROOT
      PID=$(ps -ef | grep tomcat | egrep -v "grep|$$" | awk \'{print $2}\')
      [ -n "$PID" ] && kill -9 $PID
      /bin/bash /usr/local/tomcat/bin/startup.sh'''
   }
   stage('test') {
       sh 'echo susses'
   }
}

#推送本地仓库到远程Git
[root@Jenkins jenkinsfile]# git add *
[root@Jenkins jenkinsfile]# git commit -m "java流水线脚本"
[master 89a206e] java流水线脚本
 1 file changed, 25 insertions(+)
 create mode 100644 itemB/jenkinsfile-java-solo
[root@Jenkins jenkinsfile]# git push -u origin master
Counting objects: 6, done.
Compressing objects: 100% (4/4), done.
Writing objects: 100% (4/4), 913 bytes | 0 bytes/s, done.
Total 4 (delta 0), reused 0 (delta 0)
To git@192.168.200.61:/home/git/repos/jenkinsfile
   6106cee..89a206e  master -> master
分支 master 设置为跟踪来自 origin 的远程分支 master。

#进行流水线脚本克隆测试
[root@Jenkins jenkinsfile]# cd /test/
[root@Jenkins test]# ls
solo
[root@Jenkins test]# rm -rf *
[root@Jenkins test]# git clone git@192.168.200.61:/home/git/repos/jenkinsfile
正克隆到 'jenkinsfile'...
remote: Counting objects: 24, done.
remote: Compressing objects: 100% (21/21), done.
remote: Total 24 (delta 4), reused 0 (delta 0)
接收对象中: 100% (24/24), done.
处理 delta 中: 100% (4/4), done.
[root@Jenkins test]# ls
jenkinsfile
[root@Jenkins test]# cd jenkinsfile/
[root@Jenkins jenkinsfile]# ls
itemA  itemB
[root@Jenkins jenkinsfile]# ls itemB/jenkinsfile
itemB/jenkinsfile

6.5 设置分布式构建的slave管理节点

6.5.1 添加用于ssh连接的账户和密码

6.5.2 配置slave从节点

6.6 进行流水线的单Slave从节点分布式构建测试

如果不出意外，构建会失败在最后一步（tomcat进程未启动）。
jenkins没办法启动tomcat的socket进程
原因在于Pipeline流水线在启动一个脚本程序的时候，这个脚本程序会运行在后台。
但是当pipeline结束以后，jenkins会自动kill掉所有和pipeline有关的派生子进程
因此，我们需要在流水线脚本里加一个变量参数，不让pipeline杀掉才可以
JENKINS_NODE_COOKIE=dontkillme

#修改流水线脚本，添加参数，并提交远程仓库
[root@Jenkins jenkinsfile]# cat itemB/jenkinsfile-java-solo 
node ("PHP-slave2-192.168.200.65") {
   stage('git checkout') {
      checkout([$class: 'GitSCM', branches: [[name: '${branch}']], 
      doGenerateSubmoduleConfigurations: false, extensions: [],submoduleCfg: [], 
      userRemoteConfigs: [[credentialsId: 'f58165e3-e5a7-408a-a57d-a4b643b14308', 
      url: 'git@192.168.200.61:/home/git/repos/solo.git']]])
   }
   stage('maven build') {
      sh '/usr/local/maven/bin/mvn clean package -Dmaven.test.skip=true'
   }
   stage('deploy') {
      sh '''
      JENKINS_NODE_COOKIE=dontkillme    #添加此行
      WWWROOT=/usr/local/tomcat/webapps/ROOT
      [ -d /data/backup ] || mkdir -p /data/backup
      if [ -d $WWWROOT ];then
         mv $WWWROOT /data/backup/tomcat-$(date +%F_%T)
      fi
      unzip ${WORKSPACE}/target/*.war -d $WWWROOT
      PID=$(ps -ef | grep tomcat | egrep -v "grep|$$" | awk \'{print $2}\')
      [ -n "$PID" ] && kill -9 $PID
      /bin/bash /usr/local/tomcat/bin/startup.sh'''
   }
   stage('test') {
       sh 'echo susses'
   }
}


#提交远程Git仓库
[root@Jenkins jenkinsfile]# git add *
[root@Jenkins jenkinsfile]# git commit -m "第二次提交java流水线脚本"
[master 1677c59] 第二次提交java流水线脚本
 1 file changed, 3 insertions(+), 1 deletion(-)
[root@Jenkins jenkinsfile]# git push -u origin master
Counting objects: 7, done.
Compressing objects: 100% (4/4), done.
Writing objects: 100% (4/4), 457 bytes | 0 bytes/s, done.
Total 4 (delta 1), reused 0 (delta 0)
To git@192.168.200.61:/home/git/repos/jenkinsfile
   89a206e..1677c59  master -> master
分支 master 设置为跟踪来自 origin 的远程分支 master。

进行分布式构建测试

6.7 进行流水线的单Slave从节点SSH远程分布式构建测试

克隆一台tomcat服务器，进行SSH远程构建

主机名	IP地址	备注
Git	192.168.200.192	Git服务器
Jenkins	192.168.200.193	Jenkins服务器
Web01	192.168.200.196	Tomcat服务器
Web02	192.168.200.197	TomcatB服务器

6.7.1 安装SSH Pipeline Steps插件

6.7.2 修改流水线脚本，并提交Git仓库

#修改流水线脚本，并提交Git仓库
[root@Jenkins jenkinsfile]# cat itemB/jenkinsfile-java-solo 
node ("PHP-slave2-192.168.200.196") {
   //def mvnHome
   def remote = [:]
   stage('git checkout') {
    sh 'hostname -I'
        checkout([$class: 'GitSCM', branches: [[name: '${branch}']], 
        doGenerateSubmoduleConfigurations: false, extensions: [], submoduleCfg: [], 
        userRemoteConfigs: [[credentialsId: 'd0721eb3-07e1-49f2-bb30-2fae94220fad', 
        url: 'git@192.168.200.192:/home/git/repos/solo.git']]])
   }
   stage('maven build') {
        sh '/usr/local/maven/bin/mvn clean package -Dmaven.test.skip=true'
   }
   stage('Remote SSH 200.192') {
        remote.name = 'test'
        remote.host = '192.168.200.192'
        remote.user = 'root'
        remote.password = '666666'
        remote.allowAnyHosts = true
        writeFile file: '192.sh',text:'echo "`hostname -I`"'
        sshScript remote: remote,script: "192.sh"
   }
   stage('Remote SSH 200.197') {
        remote.name = 'test'
        remote.host = '192.168.200.197'
        remote.user = 'root'
        remote.password = '666666'
        remote.allowAnyHosts = true
    writeFile file: '197.sh',text:'''
echo "`hostname -I`"
'''
    sshScript remote: remote,script: "197.sh"
   }
}

6.7.3 进行分布式构建测试

6.8 进行流水线的多Slave从节点分布式构建测试

添加Slave从节点，并进行多节点构建

#修改流水线脚本，并提交Git仓库
[root@Jenkins jenkinsfile]# cat itemB/jenkinsfile-java-solo
node ("PHP-slave2-192.168.200.196") {
   //def mvnHome
   stage('git checkout') {
        sh 'hostname -I'
        checkout([$class: 'GitSCM', branches: [[name: '${branch}']], 
        doGenerateSubmoduleConfigurations: false, extensions: [], submoduleCfg: [], 
        userRemoteConfigs: [[credentialsId: 'd0721eb3-07e1-49f2-bb30-2fae94220fad', 
        url: 'git@192.168.200.192:/home/git/repos/solo.git']]])
   }
   stage('maven build') {
        sh '/usr/local/maven/bin/mvn clean package -Dmaven.test.skip=true'
   }
   stage('deploy') {
        sh '''
        JENKINS_NODE_COOKIE=dontkillme
        WWWROOT=/usr/local/tomcat/webapps/ROOT
        [ -d /data/backup ] || mkdir -p /data/backup
        if [ -d $WWWROOT ];then
            mv $WWWROOT /data/backup/tomcat-$(date +%F_%T)
        fi
        unzip ${WORKSPACE}/target/*.war -d $WWWROOT
        PID=$(ps -ef | grep tomcat | egrep -v "grep|$$" | awk \'{print $2}\')
        [ -n "$PID" ] && kill -9 $PID
        /bin/bash /usr/local/tomcat/bin/startup.sh'''
   }
}
node ("PHP-slave3-192.168.200.197") {
   //def mvnHome
   stage('git checkout') {
        sh 'hostname -I'
        checkout([$class: 'GitSCM', branches: [[name: '${branch}']], 
        doGenerateSubmoduleConfigurations: false, extensions: [], submoduleCfg: [], 
        userRemoteConfigs: [[credentialsId: 'd0721eb3-07e1-49f2-bb30-2fae94220fad', 
        url: 'git@192.168.200.192:/home/git/repos/solo.git']]])
   }
   stage('maven build') {
        sh '/usr/local/maven/bin/mvn clean package -Dmaven.test.skip=true'
   }
   stage('deploy') {
        sh '''
	JENKINS_NODE_COOKIE=dontkillme
	WWWROOT=/usr/local/tomcat/webapps/ROOT
        [ -d /data/backup ] || mkdir -p /data/backup
        if [ -d $WWWROOT ];then
            mv $WWWROOT /data/backup/tomcat-$(date +%F_%T)
        fi
        unzip ${WORKSPACE}/target/*.war -d $WWWROOT
        PID=$(ps -ef | grep tomcat | egrep -v "grep|$$" | awk \'{print $2}\')
        [ -n "$PID" ] && kill -9 $PID
        /bin/bash /usr/local/tomcat/bin/startup.sh'''
   }
}

7.生产环境网站项目发布思路