Jenkins流水线项目发布流程

Jenkins流水线项目发布流程

CI/CD代码发布流程

1. 开发者开发代码
2. 提交至git仓库
3. jenkins从仓库拉取代码
4. jenkins通过maven（ant，gradle等）构建项目推到docker仓库
5. 生成一个在tomcat运行的项目的docker容器
6. 测试人员测试

流水线项目创建

本次环境为：

主机名	IP地址	安装的应用	系统版本
jenkins	192.168.100.1	tomcat jenkins	RedHat 8
client	192.168.100.2	tomcat	RedHat 8

tomcat、jenkins安装配置详细请见：Jenkins配置

准备工作：

#jenkins
//关闭防火墙
[root@jenkins ~]# systemctl disable --now firewalld
[root@jenkins ~]# sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config
[root@jenkins ~]# setenforce 0

//安装jdk环境
[root@jenkins ~]# yum -y install java-1.8.0-openjdk java-1.8.0-openjdk-devel

//安装git和maven
[root@jenkins ~]# yum -y install git maven

//安装tomcat
[root@jenkins ~]# cd /usr/src/
[root@jenkins src]# wget https://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-9/v9.0.46/bin/apache-tomcat-9.0.46.tar.gz
[root@jenkins src]# ls
apache-tomcat-9.0.46.tar.gz  debug  kernels
[root@jenkins src]# tar xf apache-tomcat-9.0.46.tar.gz -C /usr/local/
[root@jenkins src]# cd /usr/local/
[root@jenkins local]# ln -s apache-tomcat-9.0.46/ tomcat

//部署jenkins
[root@jenkins ~]# cd /usr/src/
[root@jenkins src]# wget http://mirrors.jenkins-ci.org/war/2.293/jenkins.war
[root@jenkins src]# cp jenkins.war /usr/local/tomcat/webapps
[root@jenkins src]# /usr/local/tomcat/bin/catalina.sh start
[root@jenkins src]# ls /usr/local/tomcat/webapps/
docs  examples  host-manager  jenkins  jenkins.war  manager  ROOT

//SSH免密登录
[root@jenkins ~]# ssh-keygen -t rsa
[root@jenkins ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub root@192.168.100.2

#client
//关闭防火墙
[root@client ~]# systemctl disable --now firewalld
[root@client ~]# sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config
[root@client ~]# setenforce 0

//安装jdk环境
[root@client ~]# yum -y install java-1.8.0-openjdk java-1.8.0-openjdk-devel

//安装tomcat
[root@client ~]# cd /usr/src
[root@client src]# wget https://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-9/v9.0.46/bin/apache-tomcat-9.0.46.tar.gz
[root@client src]# tar xf apache-tomcat-9.0.46.tar.gz -C /usr/local/
[root@client src]# cd /usr/local/
[root@client local]# ln -s apache-tomcat-9.0.46/ tomcat

管理Jenkins

登录192.168.100.1:8080/jenkins

安装Pipeline、Git插件

创建流水线项目

定义变量

勾选 参数化构建过程 —— 添加参数

配置流水线

流水线脚本详情如下

pipeline {
    agent any
    
    stages {
        stage('pull code') {
            steps {
                git '${Git_repo}'
            }
        }

        stage('package') {
            steps {
                sh """
                mvn clean
                mvn package
                """
            }
        }
        
        stage('deploy') {
            steps {
                sh """
                scp target/${Project_name}.war root@${Client}:${Tomcat_dir}/webapps/
                ssh root@${Client} '${Tomcat_dir}/bin/shutdown.sh && ${Tomcat_dir}/bin/startup.sh'
                """
            }
        }
        
    }
}

立即构建

本次构建变量参数如下

构建成功

构建成功后验证

#client
//查看tomcat是否启动
[root@client ~]# ss -antl
State     Recv-Q    Send-Q            Local Address:Port       Peer Address:Port    
LISTEN    0         128                     0.0.0.0:22              0.0.0.0:*       
LISTEN    0         1            [::ffff:127.0.0.1]:8005                  *:*       
LISTEN    0         100                           *:8080                  *:*       
LISTEN    0         128                        [::]:22                 [::]:*  

//查看项目名称
[root@client ~]# ls /usr/local/tomcat/webapps/
docs          ly-simple-tomcat-0.0.1-SNAPSHOT      ROOT
examples      ly-simple-tomcat-0.0.1-SNAPSHOT.war
host-manager  manager

访问 http://192.168.100.2:8080/ly-simple-tomcat-0.0.1-SNAPSHOT/

访问成功！大功告成!