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  1. Jenkins
  2. JENKINS-61994

kubernetes pipeline hangs forever when pod creation is rejected by kubernetes

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      We use OPA gatekeeper to restrict which images can be used by our kubernetes builds.

      This means that if a non-whitelisted image is used, the k8s API server will reject the creation of the pod.

      If I manually apply the yaml from jenkins, then the rejection looks like this:

      > kubectl apply -f hest.yaml
      Error from server ([denied by image-constraint] container <gradle> has an invalid image repo <illegal:latest>, allowed repos are ["jenkins/jnlp-slave:", "gitlab/gitlab-runner-helper:", "gitlab/gitlab-runner:", "foo.example.com:5501/", "gradle:", "alpine:", "golang:"]): error when creating "hest.yaml": admission webhook "validation.gatekeeper.sh" denied the request: [denied by image-constraint] container <gradle> has an invalid image repo <illegal:latest>, allowed repos are ["jenkins/jnlp-slave:", "gitlab/gitlab-runner-helper:", "gitlab/gitlab-runner:", "foo.example.com:5501/", "gradle:", "alpine:", "golang:"]
      

      In jenkins the build hangs at "Created Pod" until aborted.

      Obtained Jenkinsfile from 259e54efd09055268dbe4e56f9f9738c4607ad1b
      Running in Durability level: MAX_SURVIVABILITY
      [Pipeline] Start of Pipeline
      [Pipeline] podTemplate
      [Pipeline] {
      [Pipeline] node
      Still waiting to schedule task
      All nodes of label ‘gitlab-tag-service_try-jenkins-pipeline_14-x5j5r’ are offline
      Created Pod: gitlab-tag-service-try-jenkins-pipeline-14-x5j5r-bsrsc-c56lf in namespace jenkins-workers
      Aborted by User
      

      As the error from the API server is immediate and informative, I would really like the message to be made visible in the build log and that the build is terminated with an error in stead of just hanging.

            iocanel Ioannis Canellos
            drendk Flemming Frandsen
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              Created:
              Updated: