Jenkins has an early mover advantage since it has been in development since 2011. Kohsuke Kawaguchi created Jenkins (then called ‘Hudson’) while working at Sun Microsystems. Hudson was created in the summer of 2004 and the first release was in February 2005.Īfter the acquisition of Sun Microsystems by Oracle, a proposal was approved by the Hudson community for creating the Jenkins project. In February 2011, Oracle intended that the development of Hudson should continue hence, Hudson was forked instead of renaming it to Jenkins. Though Hudson and Jenkins were being developed independently, Jenkins acquired significantly more projects & contributors than Hudson. Consequently, Hudson is no longer maintained by the community. Like other open-source projects, Jenkins also produces two release lines – LTS (Long-Term Support) and Weekly (regular) releases. Jenkins is very good with releases, as stable releases happen every four weeks.Īt the time of this ‘, what is Jenkins’ article, the latest version of Jenkins LTS was 2.235.2, and Jenkins Weekly was 2.249. Jenkins is more functionality-driven rather than UI-driven hence, there is a learning curve involved in getting to know what is Jenkins. Here are the powerful developer-centric features offered by Jenkins: 1. Jenkins is a self-contained Java program that is agnostic of the platform on which it is installed. It is available for almost all the popular operating systems such as Windows, different flavors of Unix, and Mac OS. It is available as a normal installer, as well as a. Once installed, it is easy to configure using its web interface. Open-SourceĪs it is open-source, it is free for use. There is a strong involvement of the community which makes it a powerful CI/CD tool. You can take support from the Jenkins community, whether it is for extensibility, support, documentation, or any other feature related to Jenkins. The backbone of Jenkins is the community and the community members have been instrumental in the development (and testing) of close to 1500+ plugins available in the Update Center. Jenkins is designed in such a manner that makes it relatively easy to distribute work across multiple machines and platforms for the accelerated build, testing, and deployment. This Jenkins Tutorial for beginners and professionals will help you learn how to use Jenkins, one of the most popular CI/CD tools used in DevOps. In this section of the What is Jenkins blog, we look at the internal functioning of Jenkins i.e. what happens once the developer commits changes to the repository and how CI/CD is realized in Jenkins. We also look at the Master-Agent architecture in Jenkins. This field supports substituting environment variables in the form $ or $SOME_VARIABLE at build time.Developers do the necessary modifications in the source code and commit the changes to the repository.These are the series of steps that outlines the interaction between different elements in Jenkins: Architecture Of Jenkinsīefore we dive into how does Jenkins works, we must understand the architecture of Jenkins. Otherwise, if the number of mapping files found is not equal to the number of app files being uploaded, the build will fail, as this situation is not supported.įor more information on deobfuscating crash stacktraces, see the Google Play documentation: If there are multiple mapping files found, a basic attempt will be made to automatically associate each mapping file with its corresponding app file. If there are multiple AAB/APK files being uploaded, and only one mapping file is found in the workspace, then that mapping file will be associated with each of the app files being uploaded. You can only upload mapping files that are located in your workspace. The base directory is the build's workspace. Note that multiple entries must be comma-separated. See the 'includes' attribute of Ant's FileSet for the exact format. You can use wildcards like "**/build/**/mapping.txt". In such cases, you shouldn't use this option since Google Play will reject any attempt to upload a mapping file when the app bundle has one embedded. Note that if you build an Android App Bundle (AAB file) with ProGuard enabled, the mapping file should already be embedded in the app bundle (typically as BUNDLE-METADATA/.obfuscation/proguard.map. Specifies filenames or patterns matching one or more ProGuard mapping files that should be uploaded to Google Play, so that it can automatically deobfuscate stacktraces from crash reports.
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