Source: analyticsindiamag.com. Jenkins is an open-source continuous integration tool which is written in Java. By default, Jenkins will be running on port 8080. It is a master-slave topology which distributes the build and testing efforts over slave servers with the results automatically accumulated on the master. It is not only a continuous integration server but also has a highly active community that works towards improving codes, write plugins, participates on mailing lists, writes bug reports, etc. It can be installed through native