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githubjenkins-plugins

Jenkins github plugin isn't triggering a build when I push commits to master

Also, I have a warning under the Build when a change is pushed to GitHub checkbox:

Hook for repo [redacted] on www.github.com failed to be registered or were removed. More info can be found on global manage page. This message will be dismissed if Jenkins receives a PING event from repo or repo will be ignored in global configuration.

What are some possible causes?

Solution

  • The github jenkins plugins seems to fail at registering webhooks when given a github URL including a leading www.. Double-check the repository URL you gave to jenkins, under Git under Source Code Management in the project configuration. Make sure it's not a www URL:

    Problematic:

    https://www.github.com/YOUR/REPO.git

    Seems to work:

    https://github.com/YOUR/REPO.git

    After making this change, you should see webhooks pointing to your Jenkins instance appear in your repo's settings.

    (I think this is a bug in the plugin. git clone works fine with the URL containing www. Could also be a gotcha in github's API.)