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  1. Jenkins
  2. JENKINS-66986

Kubernetes plugin - Running inside a static Windows node from inside a Kubernetes linux node fails

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: Major Major
    • kubernetes-plugin
    • None
    • kubernetes 1.31.1

      Kubernetes plugin - Running in a static Windows node from inside a Kubernetes linux node fails.

       

      node(<KUBERNETES POD>) {
          container(<CONTAINER TO RUN IN>) {
              //Perform some tasks
              node(<STATIC WINDOWS NODE>) {
                  bat '<some bat command>'
              }
              //Perform some tasks
          }
      }
      

       

      The above fails with the following error

       

      java.lang.ClassCastException: hudson.slaves.DumbSlave cannot be cast to org.csanchez.jenkins.plugins.kubernetes.KubernetesSlave
      	at org.csanchez.jenkins.plugins.kubernetes.pipeline.ContainerExecDecorator$1.launch(ContainerExecDecorator.java:255)
      	at hudson.Launcher$ProcStarter.start(Launcher.java:508)
      	at org.jenkinsci.plugins.durabletask.BourneShellScript.launchWithCookie(BourneShellScript.java:176)
      	at org.jenkinsci.plugins.durabletask.FileMonitoringTask.launch(FileMonitoringTask.java:136)
      	at org.jenkinsci.plugins.workflow.steps.durable_task.DurableTaskStep$Execution.start(DurableTaskStep.java:320)
      	at org.jenkinsci.plugins.workflow.cps.DSL.invokeStep(DSL.java:319)
      	at org.jenkinsci.plugins.workflow.cps.DSL.invokeMethod(DSL.java:193)
      	at org.jenkinsci.plugins.workflow.cps.CpsScript.invokeMethod(CpsScript.java:122)
      	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      	at java.lang.reflect.Method.invoke(Method.java:498)
      	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
      	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
      	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1213)
      	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022)
      	at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:42)
      	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
      	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
      	at org.kohsuke.groovy.sandbox.impl.Checker$1.call(Checker.java:163)
      	at org.kohsuke.groovy.sandbox.GroovyInterceptor.onMethodCall(GroovyInterceptor.java:23)
      	at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SandboxInterceptor.onMethodCall(SandboxInterceptor.java:158)
      	at org.kohsuke.groovy.sandbox.impl.Checker$1.call(Checker.java:161)
      	at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:165)
      	at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:135)
      	at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:135)
      	at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:135)
      	at com.cloudbees.groovy.cps.sandbox.SandboxInvoker.methodCall(SandboxInvoker.java:17)
      	at WorkflowScript.run(WorkflowScript:8)
      	at ___cps.transform___(Native Method)
      	at com.cloudbees.groovy.cps.impl.ContinuationGroup.methodCall(ContinuationGroup.java:86)
      	at com.cloudbees.groovy.cps.impl.FunctionCallBlock$ContinuationImpl.dispatchOrArg(FunctionCallBlock.java:113)
      	at com.cloudbees.groovy.cps.impl.FunctionCallBlock$ContinuationImpl.fixArg(FunctionCallBlock.java:83)
      	at sun.reflect.GeneratedMethodAccessor174.invoke(Unknown Source)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      	at java.lang.reflect.Method.invoke(Method.java:498)
      	at com.cloudbees.groovy.cps.impl.ContinuationPtr$ContinuationImpl.receive(ContinuationPtr.java:72)
      	at com.cloudbees.groovy.cps.impl.ConstantBlock.eval(ConstantBlock.java:21)
      	at com.cloudbees.groovy.cps.Next.step(Next.java:83)
      	at com.cloudbees.groovy.cps.Continuable$1.call(Continuable.java:174)
      	at com.cloudbees.groovy.cps.Continuable$1.call(Continuable.java:163)
      	at org.codehaus.groovy.runtime.GroovyCategorySupport$ThreadCategoryInfo.use(GroovyCategorySupport.java:129)
      	at org.codehaus.groovy.runtime.GroovyCategorySupport.use(GroovyCategorySupport.java:268)
      	at com.cloudbees.groovy.cps.Continuable.run0(Continuable.java:163)
      	at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.access$001(SandboxContinuable.java:18)
      	at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.run0(SandboxContinuable.java:51)
      	at org.jenkinsci.plugins.workflow.cps.CpsThread.runNextChunk(CpsThread.java:185)
      	at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:400)
      	at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.access$400(CpsThreadGroup.java:96)
      	at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:312)
      	at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:276)
      	at org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$2.call(CpsVmExecutorService.java:67)
      	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
      	at hudson.remoting.SingleLaneExecutorService$1.run(SingleLaneExecutorService.java:139)
      	at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
      	at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:68)
      	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
      	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
      	at java.lang.Thread.run(Thread.java:748)
      Finished: FAILURE
      

      The error occurs when bat is invoked. If instead of 'bat', 'println' is called it works ok. I would have expected that when node is called for the static Windows node I would be able to execute a bat or any other command and it will be applied for the Windows node only. 

       

      The above pipeline is just an example. I know how to avoid the issue if that was the pipeline but the error happens when using a shared library for provisioning nodes and the container() call is inside the shared library for kubernetes containers and then the body of the shared library users is executed:

       

      closureToProvision() {
          ...
          ...
          node(<KUBERNETES LABEL>) {
              container(<SOME CONTAINER>) {
                  body.call()
              }
          }
      }

       

            ppetkov Preslav Petkov
            ppetkov Preslav Petkov
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              Created:
              Updated:
              Resolved: