Can Gitlab webhooks be used to trigger Tekton Pipelines?

Question

I have a working Tekton Pipeline that is successfully triggered by a GitHub webhook, but it doesn't work with Gitlab webhook. I can see that the Gitlab webhook is triggered and that it gets to the EventListener container in OpenShift, but the Pipeline itself does not run. So, does it work with Gitlab webhooks? If so, is there something that I need to setup or change so that it actually triggers the pipeline?

Thanks! Cesar

Have a look into the EventListener pods logs. I had some cases where the json payload send was malformed or couldn't be parsed. Also I had an incorrect PipelineRun definition inside my TriggerTemplate. Can you provide code examples and the EventListener pod logs? — jonashackt
– jonashackt, Commented Nov 30, 2021 at 13:25
I also wrote about a fully working example of GitLab Tekton Integration using Tekton Triggers, GitLab Webhook and the gitlab-set-status Task in this so Q&A. Here's the fully comprehensible example project if your interested: github.com/jonashackt/aws-eks-tekton-gitlab — jonashackt
– jonashackt, Commented Nov 30, 2021 at 13:27

Jonas · Accepted Answer · 2020-10-20 11:36:38Z

1

A Tekton Trigger can initiated by any http-request, so if you use a GitHub-webhook, a GitLab webhook or a curl command should not matter.

However, those webhook requests provide data in a slightly different json-format, so to pass parameters to the Pipeline, you need to properly configure the TriggerBinding matching the request that you receive. You probably need a different TriggerBinding for GitLab than for GitHub.

but the Pipeline itself does not run

it is hard to answer this part without more information. Any error message?

answered Oct 20, 2020 at 11:36

Jonas

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2 Comments

Cesar Ida Over a year ago

Thank you Jonas! I don't see errors in any of the containers logs (tekton-triggers-webhook, tekton-triggers-controller, tekton-pipelines-controller, tekton-pipelines-webhook). Is there somewhere else that I should look for?

jonashackt Over a year ago

Yeah, you should have a look into the EventListener pod's logs. Grab the name via kubectl get pods (it's derived from the contents of your EventListener's metadata: name: field prefixed by el-). Assuming this gives a el-gitlab-listener-db6bb5858-dc8ks 1/1 Running 0 17m, then you can grab the logs via k logs po el-gitlab-listener-db6bb5858-dc8ks.

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