Jenkins Enterprise Application Advanced Detailed

CI / CD, DevOps introduction

 

Continuous integration (Continuous Integration, CI)

Code merger, build, deploy, test all together, continue to carry out this process, and the results feedback

 

Continuous Delivery (Continuous Delivery, CD)

Deployed to the build environment to users

 

Continuous deployment (Continuous Deployment, CD)

Deployed in a production environment

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Getting Git remote repository version

 

System Environment Requirements

CPU name IP addresses Remark
Git 192.168.200.70 Git server
Jenkins 192.168.200.91 Jenkins server

cat /etc/redhat-release

uname -r

systemctl stop firewalld

systemctl disable firewalld

systemctl stop NetworkManager

systemctl disable NetworkManager

echo "`hostname -I` jj-git" >> /etc/hosts

echo "`hostname -I` jj-jenkins" >> /etc/hosts

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Getting Git remote repository version

yum -y install git

which git

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Git create an account

useradd git

echo "linyaonie" | passwd --stdin git

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Create a remote Git repository

cd /home/git

mkdir repos

cd rest

mkdir app.git

cd app.git

pwd

git --bare init

ls

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Conduct of git push remote server tests Jenkins

yum -y install git

which git

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Create a directory, trying to git clone remote Git repository server code

mkdir /test

cd / test

git clone [email protected]: /home/git/repos/app.git

Enter the remote server git user's password, you will be prompted to clone an empty

ls

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Submit test code

cd /test/app

echo "sunlin" >> test

cat test

git config --global user.email "[email protected]"

git config --global user.name "Mr.sun"

git add *

git commit -m "第一次测试提交"

git push -u origin master

输入git服务器的密码

git branch -a --->-a参数也可以看到远程仓库的主分支

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在jenkins服务器进行SSH免密钥操作

ssh-keygen

一路回车即可

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进行公钥分发

ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]

输入Git服务器的git普通用户密码

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测试免密钥的git推送测试

cd /test/app

ls

echo "lin" >> test

cat test

git add *

git commit -m "免密钥提交测试"

git push -u origin master

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Jenkins的企业应用管理

jenkins官网:https://jenkins.io 
redhat版jenkins官方页面:https://pkg.jenkins.io/redhat-stable

 

jenkins所有包下载链接

链接:https://pan.baidu.com/s/1rQ6iIQCspbCvfiV2egKItw 
提取码:cych

 

Jenkins的安装与基础配置

rpm安装方式 
yum -y localinstall jenkins-2.138.1-1.1.noarch.rpm

安装Jenkins的三种方法 
利用yum源安装 
下载jenkins的rpm包安装 
jenkins的war包安装

由于之前已经介绍过war包安装jenkins的方式了,在这里我们只用yum来安装jenkins

 

利用yum方式安装最新版本jenkins

 

下载jenkins的yum源文件

yum -y install wget

which wget

wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo

 
  1. [jenkins]
  2. name=Jenkins-stable
  3. baseurl=http://pkg.jenkins.io/redhat-stable
  4. gpgcheck=1

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导入jenkins的rpm证书

rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key

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利用yum安装最新版本jenkins

yum -y install jenkins

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查看jenkins安装路径

rpm -ql jenkins --->-ql参数是查询rpm的安装路径

 
  1. /etc/sysconfig/jenkins --->jenkins配置文件

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安装和配置jdk环境(上文有下载链接)

由于jenkins是java开发的所有需要jdk支持

 

解压安装jdk

ls

tar xf jdk-8u171-linux-x64.tar.gz -C /usr/local/

cd /usr/local/

mv jdk1.8.0_171 jdk

/usr/local/jdk/bin/java -version

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配置java环境

sed -i.org '$a export JAVA_HOME=/usr/local/jdk/' /etc/profile

sed -i.org '$a export PATH=$PATH:$JAVA_HOME/bin' /etc/profile

sed -i.org '$a export CLASSPATH=.$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/lib/tools.jar' /etc/profile

tail -3 /etc/profile

source /etc/profile

java -version

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安装和配置maven环境(上文有下载链接)

 

解压安装maven

ls

tar xf apache-maven-3.5.0-bin.tar.gz -C /usr/local

cd /usr/local

mv apache-maven-3.5.0 maven

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配置maven环境变量

sed -i '$a MAVEN_HOME=/usr/local/maven' /etc/profile

sed -i '$a export PATH=${MAVEN_HOME}/bin:$PATH' /etc/profile

tail -2 /etc/profile

source /etc/profile

mvn -v

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启动jenkins

 

因为是yum安装的jenkins所以需要给java做一个命令的软链接,让启动服务的时候可以找到

ln -s /usr/local/jdk/bin/java /usr/bin

ll -d /usr/local/jdk/bin/java

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启动jenkins

systemctl start jenkins

systemctl status jenkins

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查看jenkins监听端口8080

netstat -antup | grep 8080

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添加开机自启动

systemctl enable jenkins

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通过浏览器访问jenkins

http://192.168.200.91:8080

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查看jenkins解锁密码,并复制到jenkins的web界面,解锁jenkins

cat /var/lib/jenkins/secrets/initialAdminPassword

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初始化jenkins

使用默认插件配置安装即可

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创建一个jenkins用户

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改变jenkins界面语言

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常用的系统模块介绍

系统设置 --->jenkins自身相关的全局配置和设定

全局安全配置 --->jenkins自身相关的安全配置设定

凭据配置 --->jenkins集中管理账号密码密钥等的设定

全局工具配置 --->外部的第三方工具的配置信息设定

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系统管理--->全局工具配置介绍

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Maven配置 
配置maven的settings.xml配置文件的位置路径(不修改为默认路径)

配置JDK 
配置java命令的执行路径,JDK是Java语言的软件开发工具包

配置Git 
配置git的命令执行路径,git是分布式版本控制软件

配置Gradle 
配置Gradle的执行路径,Gradle是面向java的自动化构建开源工具,同maven

配置Ant 
配置Ant的执行路径,Ant是面向java的自动化构建开源工具,同mavaen

配置Maven 
配置maven的命令执行路径,maven是面向java的自动化构建开源工具

配置Docker 
配置Docker的命令执行路径,Docker是最近大热的容器级虚拟化产品

 

全局工具配置--->配置JDK

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全局工具配置--->配置Git

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全局工具配置--->配置maven

Apache Maven是一种创新的软件项目管理工具,提供了一个项目对象模型(POM)文件的新概念来管理项目的构建,相关性和文档。最强大的功能就是能够自动下载项目依赖的库文件。

在开发中,为了保证编译通过,开发会导出去寻找项目依赖的jar包(类似rpm安装软件时需要的一堆依赖包)

因此,就要用到maven(Ant和Gradle也是干这个的)

Maven其实就类似Linux的Yum仓库,可以自动帮我们下载(公网源)和安装java项目所依赖的支持包

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用户权限管理

在一个成熟的企业应用环境中,jenkins是需要通过权限来控制角色功能使用的 
开发人员利用jenkins===>生产环境项目代码版本发布(A/B测试等) 
测试人员利用jenkins===>测试环境自动化部署 
运维人员利用jenkins===>生产环境项目代码版本回滚

 

安装插件Role-based Authorization Strategy

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注册两个用户(开发和测试)

开发账号

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测试账号

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由于开启了Role-based Strategy,此时用户没有任何权限

 

系统管理--->Role-based Strategy

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Manage Roles:权限管理

Assign Roles:授权管理

 

(1)进入权限管理

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Global roles 
jenkins的整体权限分配,至少要开读的权限

Project roles 
正则匹配具体的项目,分配管理权限

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(2)进入授权管理

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(3)创建两个项目分别以A-和B-开头(创建方式都一样)

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(4)登陆用户user1和user2进行权限登陆测试

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参数化构建

 

什么是参数化构建

参数化构建就是在执行自动构建之前可以对构建过程手动传入外部参数,从而改变构建得过程

 

(1)配置一个构建脚本,然后执行

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(2)在A-Web上添加参数化构建功能

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安装插件Extended Choice Parameter

Extended Choice Parameter 
作用就是在参数化构建时可以出现一个下拉框让用户直接选择多少个值

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插件引用文件里的参数

我们还可以在一个文件里创建参数,然后让插件引用这个参数

cd /opt

vim jenkins.property

 
  1. yunjisuan=xin01,xin02,xin03

cat jenkins.property

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Git参数化构建插件

Git Parameter插件可以直接获取Git仓库的branch,tag等信息

 

安装插件Git Parameter

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添加远程Git仓库的密钥管理

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由于我们之前用jenkins的root账户已经做过免密钥连接git了 
因此,我们创建ssh的密钥管理

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进行Git参数化构建并测试

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手动创建一个分支在提交并再次查看构建

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Master-Slave架构

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主机名 IP地址 备注
Git 192.168.200.70 Git服务器(Jenkins的Slave节点)
Jenkins 192.168.200.91 Jenkins服务器

jenkins的分布式构建操作,可以通过Slave代理节点来执行项目任务

 

首先在Git服务器上安装Jdk

ls

tar xf jdk-8u171-linux-x64.tar.gz -C /usr/local

cd /usr/local

mv jdk1.8.0_171 jdk

ln -s /usr/local/jdk/bin/* /usr/local/bin

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添加一个用于连接slave代理节点的SSH证书

之前已经添加好SSH证书了

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系统管理--->节点管理

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/var/lib/jenkins --->jenkins的工作空间

ls

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重新配置构建过程并测试

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Restrict where this project can be run===>限制项目的运行节点

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cd / var / lib / jenkins / workspace ---> If you are on the line, then the code in the contents of this directory into the web directory can

ls

cat test

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Origin www.cnblogs.com/linyaonie/p/11238305.html