Linux server Java environment deployment series (four): jenkins environment to build, deploy projects

introduction

　　This paper describes commonly used Linux server springboard machine jenkins, remote compile deployment environment to build.

Series Document Catalog

　　Linux server Java environment deployment series (a): Install the JDK

　　Linux server Java environment deployment series (two): Install nginx, mysql, tomcat, redis

　　Linux server Java environment deployment series (three): install git, maven

　　Linux server Java environment deployment series (four): jenkins environment to build, deploy projects

Build jenkins

　　Jenkins installation, installation using downloaded from a remote online form, after the completion of the corresponding need to modify the configuration.

installation steps

• Download: wget https://pkg.jenkins.io/redhat-stable/jenkins-2.176.3-1.1.noarch.rpm
• Installation: rpm -ivh jenkins-2.176.3-1.1.noarch.rpm
• Modify the configuration file: vim / etc / sysconfig / jenkins
  • jenkins default port is 8080 (proposed changes, in order to avoid a conflict of tomcat ports, etc.)
  • user to root
• Jenkins modify the jdk directory:
  • View jdk installed Location: whereis jdk
  • Edit initial configuration file (add jdk directory): vim /etc/init.d/jenkins
  • Save Changes: systemctl daemon-reload
• 启动 jenkins：systemctl start jenkins
• View password (required when you first start): cat / var / lib / jenkins / secrets / initialAdminPassword

jenkins code and cloud

　　jenkins can and GitHub, Gogs, code-yun, a common project management git remote site deployment, paper yard cloud, for example, the other is also similar.

• git config --global user.name "[your username]"
• git config --global user.email "[Your email]"
• ssh-keygen -t rsa -C "[Your email]" (default Enter on the line)
• View generated public key: tail /root/.ssh/id_rsa.pub
• Check whether a successful connection: ssh [email protected]

• /Root/.ssh/id_rsa.pub copy the contents to the cloud configure ssh public key code

　　Click in gitee in: Settings -> Security Settings -> ssh public key, copy the contents of the public key to the public key in the text box, you can just write a title

 

 

System Configuration

　　Jenkins console access addresses, external network server using public ip: http: // server ip: 8888 /, the initial password: / var / lib / jenkins / secrets / initialAdminPassword 

 　　Select "Install suggested plugins" to install the default plug-ins, following Jenkins will themselves to download the plug-in installation. 

 

 

 

 

 

 

 　　Create a super administrator account, you can skip, if you encounter the case of 403, returned to try again next

 

 

 

 　　System Management -> Global Configuration Tool configuration (if the server is installed maven, jdk, remove the automatic installation, choose their own server installation directory) -> Click Save me here is already installed on the server.

 

 

 

 

 

 　　System Management -> Plugin Manager (install plug-ins that you need)

　　It recommended because the front part of the installation, and then install a few more useful Jenkins plugins: Rebuilder, Safe Restart, Publish Over SSH, Maven Integration Click: System Management -> Plugin Manager -> Optional plug-in, enter a search plug-in plug-in name, installing log in again next to take effect.

 

 

 

 

 

 Project deployment

　　In the Jenkins home page click on <create a new task>, then enter the task name, chose to build a maven project, Note: Only the Maven Integration plugin installed have this option

 

 

 

 

 

 

 

 

 　　Use the shell to compile the project into a jar manner, according to the actual situation to write project

#!/bin/sh
echo "========== Start shell mv and build ============"
 
# 在jenkins环境中一定要加这句话，否则这个脚本进程最后会被杀死
export BUILD_ID=dontKillMe
 
# 指定最后编译好的jar的存放位置
JAR_PATH=/data/module/demo
 
# 如果路径不存在，就创建路径
[ ! -e $JAR_PATH ] && mkdir -p $JAR_PATH
 
# 指定jenkins中存放编译好的jar的位置
JENKINS_JAR_PATH=/var/lib/jenkins/workspace/springboot-demo/target
 
# 如果路径不存在，就创建路径
[ ! -e $JENKINS_JAR_PATH ] && mkdir -p $JENKINS_JAR_PATH
 
# 指定jenkins中存放编译好的jar的名称(这个jar的名字和pom文件配置有关)
JENKINS_JAR_NAME=demo-1.0.0.jar
 
# 获取该项目的进程号，用于重新部署项目前杀死进程
process_id=$(ps -ef | grep elim-church | awk '{print $2}')
 
# 如果该项目正在运行，就杀死项目进程
if [[ ! -z "$process_id" ]]
then 
    echo "========== Stop Service ============"
    kill -9 $process_id
    echo "========== Restart Service ============"
else 
    echo "========== Service is not Start ============"
fi
 
# 进入Jenkins中编译好的jar的位置
cd ${JENKINS_JAR_PATH}
 
# 将Jenkins中编译好的jar复制到最终存放项目jar的位置
cp $JENKINS_JAR_PATH/$JENKINS_JAR_NAME $JAR_PATH
 
# 进入到存放项目jar的位置
cd ${JAR_PATH}
 
# 后台启动项目，并且将控制台日志输出到nohup.out中
 
nohup java -jar ${JENKINS_JAR_NAME} >execute.log &
 
echo "========== End shell mv and build ============"
 
echo "shell脚本执行完毕"

　　保存后，进到该maven项目下，点击立即构建，构建失败的话可以先清理下工作空间

 

 

 　　查看控制定输出日志

 

 

 

 

 

 

 　　然后到阿里云服务器使用netstat -nltp查看是否有已经成功运行的项目，这儿的端口是springboot的application.properties一样的端口。