jenkins 1（9月26日）

2018-09-27

26.1 jenkins介绍
26.2 jenkins安装
26.3 了解jenkins

26.1 jenkins介绍

Jenkins是一个开源的、可扩展的持续集成、交付、部署（软件/代码的编译、打包、部署）基于web界面的平台。Jenkins是一个工具集，提供了各种各样的插件。比如获取git上最新的代码，可以帮你编译源代码，可以调用自定义的shell脚本远程执行命令
官网 https://jenkins.io 官方文档 https://jenkins.io/doc/

软件开发标准化流程

产品设计成型 -> 开发人员开发代码 -> 测试人员测试功能 -> 运维人员发布上线
不同的开发人员把模块代码叠加上主干过程为持续集成。
把代码给不断给测试人员或者软件迭代更新于用户过程为持续交付。
运维上线代码过程为持续部署。
以上过程Jenkins都可以以自动化方式来快速完成。
参考文档 http://www.ruanyifeng.com/blog/2015/09/continuous-integration.html

26.2 jenkins安装

安装jdk

1.去官网下载jdk

2.通过xftp传输到服务器上

3.解压和改名

1 2	[root@kun02 src]# tar zxvf jdk-8u171-linux-x64.tar.gz [root@kun02 src]# mv jdk1.8.0_171/ /usr/local/jdk1.8

4.编辑环境变量配置文件添加环境变量并生效

1	[root@kun02 local]# vim /etc/profile

添加下面环境参数

JAVA_HOME=/usr/local/jdk1.8/
JAVA_BIN=/usr/local/jdk1.8/bin
JRE_HOME=/usr/local/jdk1.8/jre
PATH=$PATH:/usr/local/jdk1.8/bin:/usr/local/jdk1.8/jre/bin
CLASSPATH=/usr/local/jdk1.8/jre/lib:/usr/local/jdk1.8/lib:/usr/local/jdk1.8/jre/lib/charsets.jar

1	[root@kun02 local]# source /etc/profile

查看Java版本

[root@kun02 local]# java -version
java version "11" 2018-09-25
Java(TM) SE Runtime Environment 18.9 (build 11+28)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11+28, mixed mode)

服务器端安装Jenkins

1.下载官方源

1	[root@kun02 local]# wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat/jenkins.repo

2.安装密钥

1	[root@kun02 local]# rpm --import https://pkg.jenkins.io/redhat/jenkins.io.key

3.yum安装Jenkins

1	[root@kun02 local]# yum install -y jenkins

4.启动Jenkins服务

1	[root@kun02 local]# systemctl start jenkins

5.查看admin密码

[root@kun02 src]# less /var/log/jenkins/jenkins.log

Jenkins initial setup is required. An admin user has been created and a password generated.
Please use the following password to proceed to installation:

81ac8e487c52480788c1c4fd2fba8c3e

This may also be found at: /var/lib/jenkins/secrets/initialAdminPassword

也可以在/var/lib/jenkins/secrets/initialAdminPassword查看

1 2	[root@kun02 src]# cat /var/lib/jenkins/secrets/initialAdminPassword 81ac8e487c52480788c1c4fd2fba8c3e

浏览器安装Jenkins并输入admin密码

1.浏览器输入192.168.80.102:8080

2.选择安装推荐的插件

问题1 缺少cloudbees-folder包安装插件，有时候会报类似的错误：An error occurred during installation: No such plugin: cloudbees-folder

解决下载对应的包并放到/var/lib/jenkins/plugins/下
参考网页 https://zhidao.baidu.com/question/308013275474785924.html

1 2	[root@kun02 plugins]# wget http://ftp.icm.edu.pl/packages/jenkins/plugins/cloudbees-folder/latest/cloudbees-folder.hpi [root@kun02 src]# mv cloudbees-folder.hpi /var/lib/jenkins/plugins/

问题2 下载插件画面卡主 Jenkins总是尝试连接 www.google.com,来判断网络是否连通

解决把www.google.com改为www.baidu.com

1
2
3

[root@kun02 plugins]# vim  /var/lib/jenkins/updates/default.json

{"connectionCheckUrl":"http://www.baidu.com/"

3.创建管理员用户

26.3 了解jenkins

查看yum安装的Jenkins安装的路径

[root@kun02 plugins]# rpm -lq jenkins
/etc/init.d/jenkins
/etc/logrotate.d/jenkins
/etc/sysconfig/jenkins
/usr/lib/jenkins
/usr/lib/jenkins/jenkins.war
/usr/sbin/rcjenkins
/var/cache/jenkins
/var/lib/jenkins
/var/log/jenkins

/var/lib/jenkins Jenkins主要安装目录
/etc/sysconfig/jenkins Jenkins配置文件
/var/log/jenkins Jenkins日志目录

在Jenkins主要安装目录下
jobs目录存放任务
users目录存放目录
plugins目录存放插件