[Jenkins Kubernetes Plugin] Issues building plugin from source

Andrew Douglas

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Oct 17, 2019, 1:22:26 PM10/17/19

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Hi, I am trying to diagnose a potential issue with this plugin and have downloaded the source (from https://github.com/jenkinsci/kubernetes-plugin).

I am running Minikube and have the latest version of Maven. When I try to build the plugin with the command `mvn clean install -DconnectorHost=0.0.0.0` I always get at least one integration test failure and then the build fails. Failures typically look like:

```

[INFO] Running org.csanchez.jenkins.plugins.kubernetes.pipeline.KubernetesPipelineTest

[ERROR] Tests run: 27, Failures: 0, Errors: 2, Skipped: 0, Time elapsed: 592.425 s <<< FAILURE! - in org.csanchez.jenkins.plugins.kubernetes.pipeline.KubernetesPipelineTest

[ERROR] cascadingDelete(org.csanchez.jenkins.plugins.kubernetes.pipeline.KubernetesPipelineTest) Time elapsed: 180.127 s <<< ERROR!

org.junit.runners.model.TestTimedOutException: test timed out after 180 seconds

at java...@12.0.1/java.lang.Thread.sleep(Native Method)

at app//org.jvnet.hudson.test.JenkinsRule.waitForCompletion(JenkinsRule.java:1430)

at app//org.csanchez.jenkins.plugins.kubernetes.pipeline.KubernetesPipelineTest.cascadingDelete(KubernetesPipelineTest.java:404)

at java...@12.0.1/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java...@12.0.1/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at java...@12.0.1/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java...@12.0.1/java.lang.reflect.Method.invoke(Method.java:567)

at app//org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)

at app//org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)

at app//org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)

at app//org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)

at app//org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)

at app//org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)

at app//org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)

at app//org.jvnet.hudson.test.JenkinsRule$1.evaluate(JenkinsRule.java:600)

at app//org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)

at app//org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)

at java...@12.0.1/java.util.concurrent.FutureTask.run(FutureTask.java:264)

at java...@12.0.1/java.lang.Thread.run(Thread.java:835)

[ERROR] computerCantBeConfigured(org.csanchez.jenkins.plugins.kubernetes.pipeline.KubernetesPipelineTest) Time elapsed: 0.493 s <<< ERROR!

org.jvnet.hudson.reactor.ReactorException: java.lang.Error: java.lang.reflect.InvocationTargetException

at org.jvnet.hudson.reactor.Reactor.execute(Reactor.java:282)

at jenkins.InitReactorRunner.run(InitReactorRunner.java:48)

at jenkins.model.Jenkins.executeReactor(Jenkins.java:1152)

at jenkins.model.Jenkins.<init>(Jenkins.java:959)

at hudson.model.Hudson.<init>(Hudson.java:85)

at org.jvnet.hudson.test.JenkinsRule.newHudson(JenkinsRule.java:675)

at org.jvnet.hudson.test.JenkinsRule.before(JenkinsRule.java:402)

at org.jvnet.hudson.test.JenkinsRule$1.evaluate(JenkinsRule.java:595)

at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)

at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)

at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)

at java.base/java.lang.Thread.run(Thread.java:835)

Caused by: java.lang.Error: java.lang.reflect.InvocationTargetException

at hudson.init.TaskMethodFinder.invoke(TaskMethodFinder.java:110)

at hudson.init.TaskMethodFinder$TaskImpl.run(TaskMethodFinder.java:175)

at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:296)

at jenkins.model.Jenkins$5.runTask(Jenkins.java:1118)

at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:214)

at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)

at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)

at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)

... 1 more

Caused by: java.lang.reflect.InvocationTargetException

at jdk.internal.reflect.GeneratedMethodAccessor93.invoke(Unknown Source)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:567)

at hudson.init.TaskMethodFinder.invoke(TaskMethodFinder.java:104)

... 8 more

Caused by: java.lang.IllegalStateException: Jenkins.instance is missing. Read the documentation of Jenkins.getInstanceOrNull to see what you are doing wrong.

at jenkins.model.Jenkins.get(Jenkins.java:772)

at org.jenkinsci.plugins.workflow.cps.nodes.StepDescriptorCache.getPublicCache(StepDescriptorCache.java:48)

at org.jenkinsci.plugins.workflow.cps.nodes.StepDescriptorCache.invalidateGlobalCache(StepDescriptorCache.java:55)

... 12 more

```

I'm building off the last good version (1.20.0), on a Mac, and have not changed anything.

Could someone give me a pointer to get started please?

Thanks

Andrew

Carlos Sanchez

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Oct 21, 2019, 6:14:11 AM10/21/19

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you would need to check the pod logs, to see what happened

probably the pods can't connect to jenkins and you may need to set the hot ip in maven

anyway if you submit a PR it will be tested in jenkins infra and will give you the test results

If your minikube is running in a VM (e.g. on virtualbox) and the host running mvn does not have a public hostname for the VM to access, you can set the jenkins.host.address system property to the (host-only or NAT) IP of your host:

mvn clean install -Djenkins.host.address=192.168.99.1

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Andrew Douglas

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Oct 21, 2019, 12:03:08 PM10/21/19

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Thanks Carlos,

"Some integration tests run a local jenkins" is it possible that this is not starting correctly? I can't see a copy of Jenkins running anywhere during testing.

I'm using minikube on hyperkit for testing

Andrew

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Carlos Sanchez

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Oct 21, 2019, 12:22:46 PM10/21/19

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a jenkins server is started for each of those integration tests.

the port used is printed in the logs

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Andrew Douglas

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Oct 23, 2019, 5:09:28 PM10/23/19

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I'm finding that I get the most passes when using the command:

mvn -DconnectorHost=0.0.0.0 -Djenkins.host.address=192.168.64.1 clean install

I know that pods in minikube can contact the host using 192.168.64.1 (tested), and as the docs say I don't really mind Jenkins being open for a short while.

I am still getting some failures (building unchanged code pulled from master branch), I have attached some logs. What setup do contributors usually use to build/package?