How does hudson ci work

The Jenkins main screen displays the current build queue and Executor status, and offers links to create new items jobs , manage users, view build histories, manage Jenkins, look at your custom views, and manage your credentials. There are 18 things you can do from the Manage Jenkins page, including the option to open a command-line interface.

At this point, however, we should look at pipelines, which are enhanced workflows that are typically defined by scripts. While you can use the web UI to create scripts, the current best practice is to create a pipeline script , named Jenkinsfile , and check it into your repository.

The screenshot below shows the configuration web form for a multibranch pipeline. As you can see, branch sources for this kind of pipeline in my basic Jenkins installation can be Git or Subversion repositories, including GitHub. Jenkins pipelines can be declarative or scripted. A declarative pipeline, the simpler of the two, uses Groovy-compatible syntax—and if you want, you can start the file with!

A declarative pipeline starts with a pipeline block, defines an agent , and defines stages that include executable steps , as in the three-stage example below. A more specific agent might declare a container to use, for example:. In the example above, the three stages are Build, Test, and Deploy. In the example above the steps just printed messages. A more useful build step might look like the following:. Here we are invoking make from a shell, and then archiving any produced JAR files to the Jenkins archive.

The post section defines actions that will be run at the end of the pipeline run or stage. You can use a number of post-condition blocks within the post section: always , changed , failure , success , unstable , and aborted.

For example, the Jenkinsfile below always runs JUnit after the Test stage, but only sends an email if the pipeline fails. The declarative pipeline can express most of what you need to define pipelines, and is much easier to learn than the scripted pipeline syntax, which is a Groovy-based DSL. The scripted pipeline is in fact a full-blown programming environment.

With Blue Ocean installed, your Jenkins main menu will have an extra icon:. You can open Blue Ocean directly if you wish. Pipeline creation in Blue Ocean is a bit more graphical than in plain Jenkins:. As I mentioned earlier, Jenkins is also distributed as a Docker image. Every branch with a Jenkinsfile will get a pipeline. Once you have run some pipelines, the Blue Ocean plug-in will display their status, as shown above. You can zoom in on an individual pipeline to see the stages and steps:.

There are specialized considerations for some other use cases. Android runs a kind of Java, but introduces the issue of how to test on the wide range of Android devices. The Android emulator plug-in allows you to build and test on as many emulated devices as you care to define. The Google Play Publisher plug-in lets you send builds to an alpha channel in Google Play for release or further testing on actual devices.

Docker containers are very useful in a Jenkins environment for improving speed, scalability, and consistency. There are two major use cases for Jenkins and GitHub. One is build integration, which can include a service hook to trigger Jenkins on every commit to your GitHub repository. Jenkins supports many other languages besides Java. Jenkins has a number of integrations with PHP tools. The easiest way is follow Installing Hudson as a Windows service.

Alternatively, you can install a servlet container like GlassFish and Tomcat, which can run as a service by itself, and then deploy Hudson to it. Since Hudson was written to work on unix-like platforms, some parts assume the presence of unix-utilities. It is advised to install these as well on Windows. Install UnxUtils this includes a shell that seems to work with forward and backwards slashes and does globbing correctly , put it in the Windows PATH , and copy sh.

This should get you going. One way is to first install Tomcat as a service and then deploy Hudson to it in the usual way. Another way is to use the Java Service Wrapper. However, there may be problems using the service wrapper, because the Main class in Hudson in the default namespace conflicts with the service wrapper main class.

Deploying inside a service container Tomcat, Jetty, etc. This page was last modified , 3 October by Winston Prakash. Back to the top. Jump to: navigation , search. Hudson Continuous Integration Server.