A, Jenkins related presentations

1.1 What is Continuous Integration?

Continuous integration (CI) refers frequently integrated into the trunk code. Continuous integration purpose is to let the products can be quickly updated, while maintaining high quality. Each integration automated build (including the compilation, publishing, automated testing) to verify that all through, so find integration errors as quickly as possible. Many teams find that this process can significantly reduce integration issues, so that the team can develop software faster.

There are two related concepts:Continuous Delivery (CD):In the continuous delivery of continuous integration on the basis of the code is deployed to integrate closer to real operating environment class production environment. Delivered to the quality of the team or the user, for review. If the review by the code to enter the production stage. ;Continuous deployment:The next step continuous delivery, by referring to the code after the review, automated deployment to production. Continuous deployment is the highest stage of continuous delivery

1.2 What is Jenkins?

Jenkins is an open source software project, designed to provide an open and easy to use software platform that enables continuous integration software becomes possible.

Jenkins is just a platform, really works are the plug-ins. Jenkins is a continuous integration platform, the role of automated build, you can easily help us do a lot of work, such as performing some regular tasks, automatic packaging deployment, generate test reports, etc., and Jenkins has a lot of features are using plug-in is complete, so a lot of common features have been implemented, and we only need a few simple configuration to complete many complex functions.

1.3 Jenkins related functions

Mainly used for continuous monitoring duplication of work, including: 1, continuous software release / test project. 2, external monitor to call the work performed.

Second, install and simple to use Jenkins

2.1 Installation Jenkins

1, JDK installation operating environment,
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2, install jenkins

3, edit /etc/sysconfig/jenkinsmodify the startup user root Here Insert Picture Description

4, open the jenkins
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5, before starting to view this directory is empty after the start will generate the appropriate file

6、登录web页面进行安装：http：//172.25.2.7：8080
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7、根据界面的提示信息去服务端查看密码并输入

 cat /var/lib/jenkins/secrets/initialAdminPassword

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8、上个步骤执行成功后，会弹出下面的对话框

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9、安装插件，完成后，就安装成功了。

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在这里安装插件时，可以加速Jenkins安装插件的速度，减少失败率

cd /var/lib/jenkins/updates/
vim default.json
替换：
:1,$s/http:\/\/updates.jenkins-ci.org\/download/https:\/\/mirrors.tuna.tsinghua.edu.cn\/jenkins/g
:1,$s/http:\/\/www.google.com/https:\/\/www.baidu.com/g