2021-03-11  /posts/64c207ce/ 99+   10 分钟   1.5 k  0次访问

Jenkins-Pipeline-中关于正则表达式使用问题

在 Pipeline 中使用正则表达式出现 Caused: java.io.NotSerializableException: java.util.regex.Matcher 错误处理

报错信息

在 Jenkins 中通过 Pipeline 进行项目打包时由于使用了正则表达式提取域名，提取成功的变量值可以成功在 Jenkins 控制台输出中打印，但是在其他地方调用的时候就会出现 Caused: java.io.NotSerializableException: java.util.regex.Matcher 报错。

  • Pipeline 代码段如下：

    Jenkinsfile
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    pipeline{
        ...
        parameters {
            string(name: 'harbor_url', 
                    defaultValue: 'https://harbor.akiya.cc/', 
                    description: 'harbor 服务器')
        }
        ...
        stages {
            ...
            stage("build image"){
                    agent none
                    steps {
                        script{
                            def reg = /[a-zA-Z0-9][-a-zA-Z0-9]{0,62}(\.[a-zA-Z0-9][-a-zA-Z0-9]{0,62})+\.?/
                            def matcher = harbor_url=~reg
                            while(matcher.find()){
                                image_perfix = matcher.group()
                            }
                            println("image_perfix: ${image_perfix}")
                            docker.withRegistry("${harbor_url}", "${harbor_jenkins_id}") {
                                def BuildImage = docker.build("${image_perfix}/${image_group}/foobar:${branch}", 
                                    "-f dockerfile ./")
                                BuildImage.push()
                                BuildImage.push('latest')
                            }
                    }
                }
            }
        }
    }

  • 错误日志如下：

    Console Output >folded
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    an exception which occurred:
        in field org.jenkinsci.plugins.pipeline.modeldefinition.withscript.WithScriptScript.script
        in object org.jenkinsci.plugins.pipeline.modeldefinition.agent.impl.LabelScript@7d48f1f1
        in field groovy.lang.Closure.delegate
        in object org.jenkinsci.plugins.workflow.cps.CpsClosure2@1f23a473
        in field groovy.lang.Closure.delegate
        in object org.jenkinsci.plugins.workflow.cps.CpsClosure2@35c4d772
        in field org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.closures
        in object org.jenkinsci.plugins.workflow.cps.CpsThreadGroup@17bc4f5d
        in object org.jenkinsci.plugins.workflow.cps.CpsThreadGroup@17bc4f5d
    Caused: java.io.NotSerializableException: java.util.regex.Matcher
        at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:926)
        at org.jboss.marshalling.river.BlockMarshaller.doWriteObject(BlockMarshaller.java:65)
        at org.jboss.marshalling.river.BlockMarshaller.writeObject(BlockMarshaller.java:56)
        at org.jboss.marshalling.MarshallerObjectOutputStream.writeObjectOverride(MarshallerObjectOutputStream.java:50)
        at org.jboss.marshalling.river.RiverObjectOutputStream.writeObjectOverride(RiverObjectOutputStream.java:179)
        at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:344)
        at java.util.LinkedHashMap.internalWriteEntries(LinkedHashMap.java:333)
        at java.util.HashMap.writeObject(HashMap.java:1363)
        at sun.reflect.GeneratedMethodAccessor317.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.jboss.marshalling.reflect.JDKSpecific$SerMethods.callWriteObject(JDKSpecific.java:156)
        at org.jboss.marshalling.reflect.SerializableClass.callWriteObject(SerializableClass.java:191)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1028)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:920)
        at org.jboss.marshalling.river.BlockMarshaller.doWriteObject(BlockMarshaller.java:65)
        at org.jboss.marshalling.river.BlockMarshaller.writeObject(BlockMarshaller.java:56)
        at org.jboss.marshalling.MarshallerObjectOutputStream.writeObjectOverride(MarshallerObjectOutputStream.java:50)
        at org.jboss.marshalling.river.RiverObjectOutputStream.writeObjectOverride(RiverObjectOutputStream.java:179)
        at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:344)
        at com.cloudbees.groovy.cps.SerializableScript.writeObject(SerializableScript.java:26)
        at sun.reflect.GeneratedMethodAccessor337.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.jboss.marshalling.reflect.JDKSpecific$SerMethods.callWriteObject(JDKSpecific.java:156)
        at org.jboss.marshalling.reflect.SerializableClass.callWriteObject(SerializableClass.java:191)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1028)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:920)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1082)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1040)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:920)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1082)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1040)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:920)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1082)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1040)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:920)
        at org.jboss.marshalling.river.BlockMarshaller.doWriteObject(BlockMarshaller.java:65)
        at org.jboss.marshalling.river.BlockMarshaller.writeObject(BlockMarshaller.java:56)
        at org.jboss.marshalling.MarshallerObjectOutputStream.writeObjectOverride(MarshallerObjectOutputStream.java:50)
        at org.jboss.marshalling.river.RiverObjectOutputStream.writeObjectOverride(RiverObjectOutputStream.java:179)
        at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:344)
        at java.util.HashMap.internalWriteEntries(HashMap.java:1793)
        at java.util.HashMap.writeObject(HashMap.java:1363)
        at sun.reflect.GeneratedMethodAccessor317.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.jboss.marshalling.reflect.JDKSpecific$SerMethods.callWriteObject(JDKSpecific.java:156)
        at org.jboss.marshalling.reflect.SerializableClass.callWriteObject(SerializableClass.java:191)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1028)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:920)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1082)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1040)
        at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:920)
        at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:58)
        at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:111)
        at org.jenkinsci.plugins.workflow.support.pickles.serialization.RiverWriter.lambda$writeObject$0(RiverWriter.java:144)
        at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.GroovySandbox.runInSandbox(GroovySandbox.java:237)
        at org.jenkinsci.plugins.workflow.support.pickles.serialization.RiverWriter.writeObject(RiverWriter.java:143)
        at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.saveProgram(CpsThreadGroup.java:557)
        at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.saveProgram(CpsThreadGroup.java:534)
        at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.saveProgramIfPossible(CpsThreadGroup.java:517)
        at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:441)
        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:136)
        at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
        at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:59)
        at java.util.concurrent.Executors$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)

原因分析

经查阅资料，发现此异常是由于脚本安全性和沙箱引起的。默认情况下，在运行管道脚本时，它会在沙箱中运行，仅允许使用某些方法和类。可参考 可扩展管道代码的最佳实践 使用带 @NonCPS 注释的函数对无法序列化的对象包装，通常，在管道脚本中创建的所有对象都必须可序列化（原因是 Jenkins 必须能够序列化脚本的状态，以便可以将其暂停并存储在磁盘上）。当放置 @NonCPS 一个方法时，Jenkins 将一次性执行整个方法，而不会暂停。同样，您不能从带 @NonCPS 注释的方法中引用任何管道步骤或 CPS 转换的方法。

修改后的脚本

根据查询到的资料，修改后的脚本如下，使用该方法可解决此异常问题。

Jenkinsfile
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 @NonCPS
String getDomain(String url) {
    def matches = (url =~ /[a-zA-Z0-9][-a-zA-Z0-9]{0,62}(\.[a-zA-Z0-9][-a-zA-Z0-9]{0,62})+\.?/)
    domain = '' + matches[0].getAt(0)
    domain
}
pipeline{
    ...
    parameters {
        string(name: 'harbor_url', 
                defaultValue: 'https://harbor.akiya.cc/', 
                description: 'harbor 服务器')
    }
    ...
    stages {
        ...
        stage("build image"){
                agent none
                steps {
                    script{
                        def image_perfix = getDomain("${harbor_url}")
                        println("image_perfix: ${image_perfix}")
                        docker.withRegistry("${harbor_url}", "${harbor_jenkins_id}") {
                            def BuildImage = docker.build("${image_perfix}/${image_group}/foobar:${branch}", 
                                "-f dockerfile ./")
                            BuildImage.push()
                            BuildImage.push('latest')
                        }
                }
            }
        }
    }
}

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