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  1. Jenkins
  2. JENKINS-53757

Exec Failure: Expected HTTP 101 response but was '403 Forbidden'

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • Icon: Major Major
    • kubernetes-plugin
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      I have a bare-metal Jenkins master (v2.141, running kubernetes-plugin v1.12.6) and a bare-metal Kubernetes cluster (v1.11.0). I'm trying to run a simplified version of the multi-container example described in the "Container Group Support" section of the README.

      My Jenkinsfile is as follows:

      def label = "pod-${env.JOB_NAME}-${env.BUILD_NUMBER}".replace('_', '-').replace('/', '-')

podTemplate(label: label, cloud: 'kubernetes2', namespace: 'default',
    containers: [
        containerTemplate(name: 'maven', image: 'maven:3.5-jdk-8-alpine', ttyEnabled: true, command: 'cat')
    ])
{   
   node(label) {
      echo "#1"
      stage('Fetch Maven') {
         git 'https://github.com/jenkinsci/kubernetes-plugin.git'
         echo "#2"
         container('maven') {
            stage ('Build Maven') {
               echo "#3"
               sh 'mvn -B clean install'
            }
         }
      }
   }
}

      Everything seems copacetic until the `sh` command in the final stage. Log fragment:

      [Pipeline] stage
[Pipeline] { (Build Maven)
[Pipeline] echo
#3
[Pipeline] sh
[experimental_pipeline_k8s] Running shell script
java.net.ProtocolException: Expected HTTP 101 response but was '403 Forbidden'
	at okhttp3.internal.ws.RealWebSocket.checkResponse(RealWebSocket.java:219)
	at okhttp3.internal.ws.RealWebSocket$2.onResponse(RealWebSocket.java:186)
	at okhttp3.RealCall$AsyncCall.execute(RealCall.java:153)
	at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

       

      I've set up a Kubernetes-specific log recorder on the master and it's not capturing anything untoward – the pod appears to be starting and terminating properly.

      Any thoughts?

            Unassigned Unassigned
            centerfire Brett Cashman
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              Created:
              Updated:
              Resolved: