Jenkins and Gitlab: Webhook isn't running

10
votes

I have a couple of servers:

  1. Jenkins
  2. Gitlab

On gitlab, I have a webhook:

On Push events -> http://{jenkinsIP}:8080/gitlab/build_now

On Jenkins, I have a job:

Source Code Management:

Git:

Repository URL : git@{GitlabIP}:{Gitlabgroup}/{project}.git (copy from gitlab)

Credential: key-pair working

Branches to build: */master

Repository browser: gitlab

url: http://{GitlabIP}/{Gitlabgroup}/{project}

Version: 6.5.1

Poll SCM

Schedule H/1 * * * *

Any clue why Jenkins isn't running the job?

4
gitjenkinscontinuous-integrationgitlab
Did you install the GitLab hook plugin? wiki.jenkins-ci.org/display/JENKINS/Gitlab+Hook+Plugin – Aurélien Thieriot
Yes, I did and enabled it. – davidpaquipalla
Then apparently you don't need to enable the Polling. Can you try without? Also, you might want to check if you GitLab server has access to the Jenkins server. – Aurélien Thieriot

4 Answers

12
votes

On Jenkins, you should disable "Poll SCM" and set the "Branches to build" to "master" (not "*/master")

1
votes

You don't have to put a schedule in the "poll SCM" box, it's enough to enable this option. (even if jenkins warns you (yellow), that nothing will ever happen). Then, the webhook at gitlab does his job. I configured my stuff following http://juristr.com/blog/2014/01/git-flow-jenkins-gitlab/ and it works

0
votes

There could be multiple problems.

For one, I don't see why you create a WebHook on Gitlab, and use Poll SCM on Jenkins: either use Trigger builds remotely on Jenkins with a WebHook on Gitlab, or Poll SCM on Jenkins but then also enable some Credentials for the git repo on Jenkins' side (most probably SSH deploy key).

Other than that, builds are actually triggered if the git repo changes: what branches are configured on Jenkins' side ?

Note, I haven't tested the Gitlab plugin for Jenkins yet.

0
votes

The GitLab plugin is awesome. Follow the instructions and everything works like a charm. It is also described how to send back information to GitLab from jenkins: https://github.com/jenkinsci/gitlab-plugin/wiki/Setup-Example. I faced problems with the GitLab webhook to jenkins due to https connection (500 error). I fixed it including the SSL cert in the GitLab server: https://gitlab.com/gitlab-org/gitlab-ce/issues/2681