Freestyle project : This is the central feature of Jenkins. Jenkins will build your project, combining any SCM with any build system, and this can be even used for something other than software build.
Jenkins is used to build and test your product continuously, so developers can continuously integrate changes into the build. Jenkins is the most popular open source CI/CD tool on the market today and is used in support of Dev. Ops, alongside other cloud native tools.
What is Jenkins?
Jenkins is a software that allows continuous integration. Jenkins will be installed on a server where the central build will take place. The following flowchart demonstrates a very simple workflow of how Jenkins works.
This of course begs the query “What is Jenkins and how to use it?”
Some sources claimed jenkins is a tool that is used for automation, and it is an open-source server that allows all the developers to build, test and deploy software. It works or runs on java as it is written in java.
We discovered Supported on a master-slave architecture, Jenkins comprises many slaves working for a master. This architecture – the Jenkins Distributed Build – can run identical test cases in different environments. Results are collected and combined on the master node for monitoring. Jenkins helps to automate and accelerate the software development process.
One article argued that the Jenkins project was started in 2004 (originally called Hudson ) by Kohsuke Kawaguchi, while he worked for Sun Microsystems. Kohsuke was a developer at Sun and got tired of incurring the wrath of his team every time his code broke the build.
Well, this CI server runs in servlet containers such as Apache Tomcat. Jenkins facilitates continuous integration and continuous delivery in software projects by automating parts related to build, test, and deployment. This makes it easy for developers to continuously work on the betterment of the product by integrating changes to the project.
Why is Jenkins in high demand?
Plugins: Jenkins is interconnected with well over 1,000 plugins that allow it to integrate with most of the development, testing and deployment tools. It is evident from the above points that Jenkins has a very high demand globally. Before we dive into Jenkins it is important to know what is Continuous Integration and why it was introduced.
How does Jenkins trigger a build?
Jenkins triggers a build upon every commit to the source code repository, typically to a development branch. Jenkins can be configured to run an initial suite of unit tests to ensure that the commit did not “break the build”. If the tests do not pass, the developer can be immediately notified to take corrective action.
Follow the given steps to get started: Name your project and select project type. Click on “Ok” to continue. Jenkins supports different types of build jobs. Some of them are : Freestyle build jobs are general-purpose build jobs, which provides a maximum of flexibility. This is the central feature of Jenkins.