[JIRA] (JENKINS-40745) Kubernetes plugin mkdirs error when configuring a persistent volume claim for /home/jenkins on slave

jredl@vendasta.com (JIRA)

unread,

Jan 1, 2017, 3:00:01 PM1/1/17

to jenkinsc...@googlegroups.com

Jesse Redl created an issue

Jenkins /

JENKINS-40745

Kubernetes plugin mkdirs error when configuring a persistent volume claim for /home/jenkins on slave

Issue Type:	Bug
Assignee:	Carlos Sanchez
Components:	kubernetes-plugin
Created:	2017/Jan/01 7:59 PM
Environment:	kubernetes 1.4.4 jenkins 2.32.1 kubernetes-plugin 0.10 slave image jenkinsci/jnlp-slave
Labels:	kubernetes
Priority:	Major
Reporter:	Jesse Redl

I'm attempting to create a persistent volume claim at /home/jenkins for my build container so that I can get the working directory off of the kubernetes node. I'm running into kubernetes eviction errors due to the size of the container / source code that is being checked out on the node.

However, I'm running into a permissions error it looks like when hitting the checkout step. Any thoughts on what to try here?

 
                                                                java.io.IOException: Failed to mkdirs: /home/jenkins/workspace/vendasta_AA_develop-IEOQWSXH4FZN4YOLA4GNTUPEHK5V6WLUSFSBDOOPY2CKPWC5MHVQ
	at hudson.FilePath.mkdirs(FilePath.java:1169)
	at hudson.plugins.git.GitSCM.createClient(GitSCM.java:736)
	at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1088)
	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep.checkout(SCMStep.java:109)
	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:83)
	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:73)
	at org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1$1.call(AbstractSynchronousNonBlockingStepExecution.java:47)
	at hudson.security.ACL.impersonate(ACL.java:221)
	at org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1.run(AbstractSynchronousNonBlockingStepExecution.java:44)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	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)
Finished: FAILURE
 
                                                            

kubernetes GCE persistent volume claim:

 
                                                                apiVersion: "v1"
kind: "List"
items:
  - apiVersion: "v1"
    kind: "PersistentVolume"
    metadata:
      name: "jenkins-slaves"
    spec:
      accessModes:
        - ReadWriteMany
      capacity:
        storage: 200Gi
      gcePersistentDisk:
        pdName: jenkins-slaves
        fsType: ext4

  - apiVersion: "v1"
    kind: "PersistentVolumeClaim"
    metadata:
      name: "jenkins-slaves"
      namespace: "jenkins"
    spec:
      accessModes:
        - ReadWriteMany
      resources:
        requests:
          storage: 1Gi

 
                                                            

jenkinsfile

 
                                                                #!groovy

podTemplate(label: 'build', inheritFrom: 'default', containers: [
    containerTemplate(
        name: 'build-dependencies',
        image: 'myorg/build-dependencies',
        ttyEnabled: true,
        command: 'cat',
        alwaysPullImage: true,
        workingDir: '/home/jenkins',
        resourceRequestCpu: '4',
        resourceLimitCpu: '4',
        resourceRequestMemory: '8Gi',
        resourceLimitMemory: '8Gi'
    )],
    volumes: [
        persistentVolumeClaim(mountPath: '/home/jenkins', claimName: 'jenkins-slaves', readOnly: false)
    ]) {
    node('build') {

        stage("Checkout") {
            checkout scm
        }
    }
}
 
                                                            

Add Comment

This message was sent by Atlassian JIRA (v7.1.7#71011-sha1:2526d7c)

jredl@vendasta.com (JIRA)

unread,

Jan 1, 2017, 11:15:01 PM1/1/17

to jenkinsc...@googlegroups.com

Jesse Redl commented on

JENKINS-40745

Re: Kubernetes plugin mkdirs error when configuring a persistent volume claim for /home/jenkins on slave

Well...I was able to workaround this error but i'm not entirely sure why this fixed the issue. Rather than using inheritFrom I specified the containerTemplate for the jnlp slave and it worked just fine?

 
                                                                #!groovy

podTemplate(label: 'build', containers: [
    containerTemplate(
        name: 'jnlp',
        image: 'jenkinsci/jnlp-slave/',
        args: '${computer.jnlpmac} ${computer.name}',
        resourceRequestCpu: '.5',
        resourceLimitCpu: '1',
        resourceRequestMemory: '500Mi',
        resourceLimitMemory: '1Gi',
    ),
    containerTemplate(
        name: 'build-dependencies',
        image: 'myorg/build-dependencies',
        ttyEnabled: true,
        command: 'cat',
        alwaysPullImage: true,
        resourceRequestCpu: '4',
        resourceLimitCpu: '4',
        resourceRequestMemory: '8Gi',
        resourceLimitMemory: '8Gi'
    )],
    volumes: [
        persistentVolumeClaim(mountPath: '/home/jenkins', claimName: 'jenkins-slaves', readOnly: false)
    ]) {
    node('build') {

        stage("Checkout") {
            checkout scm
        }
    }
}

 
                                                            