CategoriesSoftware development

Jenkins Continuous Integration Tutorial

We will use this port to access the Tomcat and the webpage in the upcoming steps. Jenkins, as a Java-based CI server with strong community support and a huge plugin ecosystem, is a powerful tool for anyone looking to add CI/CD to their project. You can set up Jenkins to watch for any code changes in places like GitHub, Bitbucket or GitLab http://www.rl-critic.ru/articles/obmennoe-pohudenie.html and automatically do a build a with tools like Maven and Gradle. You can utilize container technology such as Docker and Kubernetes, initiate tests and then take actions like rolling back or rolling forward in production. Further down the Pipeline, Jenkins automates user acceptance testing, which is a requirement before deployment.

what is jenkins ci

It is evident from the above-stated problems that not only the software delivery process became slow but the quality of software also went down. So to overcome such chaos there was a dire need for a system to exist where developers can continuously trigger a build and test for every change made in the source code. Jenkins is the most mature CI tool available so let us see how Continuous Integration with Jenkins overcame the above shortcomings.

Reducing the time it takes to review a code

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. He created Jenkins as a way to perform continuous integration – that is, to test his code before he did an actual commit to the repository, to be sure all was well. Once his teammates saw what he was doing, they all wanted to use Jenkins. Kohsuke open sourced it, creating the Jenkins project, and soon Jenkins usage had spread around the world.

  • Jenkins has been around much longer than other solutions in this space.
  • It is a collection of plugins that allow the creation and integration of Continuous Delivery pipelines in Jenkins.
  • Various plugins help run unit, integration, functional, and regression tests and store the results for later viewing and analysis.
  • Creating automated tests for distinct environments, such as several Java versions or operating systems, helps foresee and prevent problems in later releases.
  • Jenkins Pipeline includes several plugins that support the implementation and integration of CI pipelines in Jenkins.

Jenkins is well-known, with an extensive knowledge base, comprehensive documentation, and a thriving community. It has learning materials that make installing, managing, and troubleshooting Jenkins installations much more accessible. While it is straightforward to set up (with clear instructions), production in Jenkins can be challenging to apply. Jenkinsfiles uses coding in its declarative or scripting languages to create production pipelines.

Automating Deployment using Jenkins,Ansible and AWS

At the end of the pipeline creation wizard, Codefresh commits the configuration to git and allows its built-in Argo CD instance to deploy them to Kubernetes. Jenkins X combines Jenkins with open source tools like Helm, Docker, Nexus, and KSync. It automatically installs, configures, and upgrades these tools to integrate them into your CI/CD process. In this example, the flakey-deploy.shscript will be retried five times. If the health-check.shscript fails to execute within five minutes, Jenkins will mark the pipeline’s “Deploy” stage as failed.

what is jenkins ci