What is Jenkins? How to Use Jenkins for CI CD and Testing


A node is a general term for agents and controllers, regardless of their actual role. Any machine with the ability to build projects and pipelines is a Jenkins node, and the controller is known as the built-in node. Agents require a Java installation on a physical or virtual machine, such as Bare Metal Cloud instances, Docker images, or Kubernetes clusters. It is a server-based application and requires a web server like Apache Tomcat. The reason Jenkins software became so popular is that of its monitoring of repeated tasks which arise during the development of a project. For example, if your team is developing a project, Jenkins will continuously test your project builds and show you the errors in early stages of your development.

what is jenkins ci

Jenkins provides real-time build status and logs to help you monitor your pipeline and troubleshoot any issues that arise. You can view this information by clicking on a specific build in the “Build History” section of your pipeline dashboard. You can browse and manage plugins by visiting the “Plugin Manager” in the Jenkins dashboard. In this tutorial, you’ll learn how to quickly build a Jenkins server and create a CI job using Docker and Docker Compose.

Continuous Integration

This article explains how Jenkins works, its key features and use cases, and the functionality of a Jenkins pipeline. Pipelines automate testing and reporting on isolated changes in a larger code base in real time and facilitates the integration of disparate branches of the code into a main branch. This definition only describes the upstream open source project. It manages and controls several stages of the software delivery process, including build, documentation, automated testing, packaging, and static code analysis. Jenkins is a highly popular DevOps tool used by thousands of development teams.

what is jenkins ci

Jenkins may be operated as a server on various operating systems, including Windows, macOS, Unix versions, and, most notably, Linux. It also runs on the Oracle JRE or OpenJDK and requires a Java 8 virtual machine or higher. Jenkins is often executed as a Java servlet within a Jetty application server, and other Java application servers, such as Apache Tomcat, can be used to run it.

How do I decide which Jenkins plugins to install for my pipeline?

Further, it is available as a Web Application Resource (WAR) archive, installation packages for major operating systems, Homebrew packages, Docker images, and source code. Jenkins is distributed as a WAR archive and as installer packages for the major operating systems, as a Homebrew package, as a Docker image, and as source code. The source code is mostly Java, with a few Groovy, Ruby, and Antlr files.

what is jenkins ci

Jenkins dramatically improves the efficiency of the development process. For example, a command prompt code may be converted into a GUI button click using Jenkins. One may accomplish this by encapsulating the script in a Jenkins task. One may parameterize Jenkins tasks to allow for customization or user input. One is build integration, which can include a service hook to trigger Jenkins on every commit to your GitHub repository. The second is the use of GitHub authentication to control access to Jenkins via OAuth.

Jenkins: Docker in Docker

Therefore, all cloud applications are handled by various automation tools and services. Jenkins Pipeline is one of them that helps in software development automation. In this blog, we will learn to create CI CD Pipeline using Jenkins. The program runs http://www.rl-critic.ru/articles/obmennoe-pohudenie.html web containers and plugins, such as Apache Tomcat, and helps manage lifecycle and access rights requests. Over 1700 plugins for Jenkins enrich the software integration, automation, and delivery processes and provide a customizable environment.

  • Some steps can be used alongside other steps to make it easier to address issues such as retrying steps or timing out.
  • Read the technical cheat sheet on setting up efficient, secure Jenkins pipelines.
  • Hudson became popular at Sun, and spread to other companies as open source.
  • It also enables you to release your software continuously by interacting with various testing and deployment methods.
  • While it is straightforward to set up (with clear instructions), production in Jenkins can be challenging to apply.

Providing integration points for CI/CD tools, sources and destinations is among the most prevalent plugin applications. They also aid with the expansion of Jenkins’ capabilities as well as the integration of Jenkins with other software. Plugins may be downloaded and installed using the Jenkins Web UI or CLI from the Jenkins Plugin repository.