How to Create CI CD pipelines using Jenkins: Step by Step Guide

A Jenkins project or task is an automated process created by a Jenkins user. The plain Jenkins distribution offers a variety of build tasks that can support continuous integration http://www.rl-critic.ru/articles/obmennoe-pohudenie.html workflows, and more are available through a large ecosystem of plugins. Jenkins is a widely used program with over 300,000 installations worldwide and rising daily.

what is jenkins ci

When you run Jenkins for the first time, it creates an administrative user with a long random password, which you can paste into its initial web page to unlock the installation. Jenkins relies on older Java architectures and technology, specifically servlets and Maven. Even the Jenkins Docker installation still requires that the Jenkins code and servlet middleware be packaged into a container together, maintaining its monolithic architecture. In addition, it is not designed to be implemented using newer Java technology such as Spring Boot or GraalVM. They help extend Jenkins capabilities and integrated Jenkins with other software. Plugins can be downloaded from the online Jenkins Plugin repository and loaded using the Jenkins Web UI or CLI.

Jenkins Core Concepts

Whether you’re working on a small personal project or a large enterprise-level application, Jenkins can be scaled to meet your needs. Step 8) We need to install Apache Tomcat, and for this, you need to visit the Tomcat Download page. We can now start creating pipelines using Jenkins after all the configuration and setup. Before creating CI CD Pipeline using Jenkins, we need to start and configure Jenkins with the following steps. Step 2) Now, run the below commands one by one to install the Jenkins stable version. After making your system ready, log in to your system and proceed with Jenkins installation.

what is jenkins ci

Currently, the Jenkins community claims over 1500 plugins available for a wide range of uses. Start with Jenkins’ official documentation and online tutorials. You can also join forums and discussion groups to seek guidance and best practices from experienced Jenkins users. Step 17) In this window, fill in the username and password that we have used in the ‘tomcat-users.xml‘ file (in Step 10). Step 4) After successful login, you will be asked to select the plugin installation type.

Project (Formerly Job)

A typical pipeline has multiple steps involving the building, testing, and deployment of applications. With Jenkins Pipeline, you can define multiple steps in a simple way to help model various, more complex automation processes. You might need to modify your Jenkinsfile to enable it to run with the project. For example, you can modify the shcommand to let it run the same command that would be run on a local machine. Once you’ve set up the pipeline, Jenkins will be able to automatically detect new pull requests and branches created in your source control repository. You can create pipelines directly in the user interface, or create a “Jenkinsfile” which represents a pipeline as code.

  • It can be challenging to manage all the applications without proper tools and skills.
  • Step 2) Now, run the below commands one by one to install the Jenkins stable version.
  • Jenkins runs as a stand-alone package or on a Java application server.
  • Jenkins offers a wealth of plugins and integrations that allow you to expand your pipeline’s capabilities and integrate with various tools and platforms.
  • This is crucial if your pipeline saves huge files or complex data to variables in the script.