| --- |
| layout: post |
| title: Bringing GitPubSub to the Apache Jenkins build server |
| date: '2017-03-26T00:00:00+00:00' |
| categories: infra |
| --- |
| <p>
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| When it comes to <a href="#Jenkins">[Jenkins</a>], it has long been known that [polling must die].
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| </p>
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| <p>While we could go and create post commit hooks in all the ASF hosted Git repositories, that is something that realistically is just creating an added maintenance burden.
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| In any case, we have [GitPubSub]. </p>
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| <p>The question then becomes, how do we integrate [GitPubSub] with [Jenkins]?
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| Thankfully, ASF committer stephenc is also an active committer to the [Jenkins] project and created a [plugin] that connects to [GitPubSub] parses the events and passes them through to the Jenkins [SCM API].
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| </p>
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| <p>
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| What does this mean?
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| </p>
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| <p>* You can turn your Git polling down - way way down - to something like once per day.
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| This should significantly reduce the load on both the ASF git servers and builds.apache.org<br />* Your builds will be triggered in seconds rather than having to wait for the next polling run.<br />* You can try out using Multi-branch projects much like the [Maven] project has been doing for [Maven core] and [Maven Surefire]
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| </p>
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| <p>
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| If the reaction to this change proves positive, the next step will be to integrate SvnPubSub with Jenkins and bring the benefits to the Subversion based projects too
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| </p>
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| <p> </p>
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| <p>See also this blog post by Stephen Connolly:</p>
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| <p> <a href="https://www.cloudbees.com/blog/using-multi-branch-pipelines-apache-maven-project">https://www.cloudbees.com/blog/using-multi-branch-pipelines-apache-maven-project</a><br /></p>
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| <p>[polling must die]: http://kohsuke.org/2011/12/01/polling-must-die-triggering-jenkins-builds-from-a-git-hook/<br />[GitPubSub]: https://www.apache.org/dev/gitpubsub.html
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| <br /> <a name="Jenkins">[Jenkins]</a>: https://jenkins.io/
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| <br />[plugin]: https://github.com/stephenc/asf-gitpubsub-jenkins-plugin
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| <br />[SCM API]: https://plugins.jenkins.io/scm-api
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| <br />[Maven]: https://maven.apache.org
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| <br />[Maven core]: https://builds.apache.org/job/maven-3.x-jenkinsfile/
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| <br /> [Maven Surefire]: https://builds.apache.org/job/maven-surefire-pipeline/
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| </p>
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| <p>Posted on behalf of Committer Stephen Connolly (stephenc)
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| </p> |
