无法使用插件访问 Jenkins slave 上的文件

Question

通过我自己的插件，我需要知道一个文件在Jenkins slave 的工作空间中是否存在。但是找不到文件，而它确实存在于slave上

artifactsToDeploy = workingDir.act(new FilesDeployerCallable(listener, pairs, artifactoryServer, credentials,
                repositoryKey, propertiesToAdd,
                artifactoryServer.createProxyConfiguration(Jenkins.getInstance().proxy),configurator.getProductKey(),configurator.getArtifactoryKey(), configurator.getBuildType() ,configurator.getRpmParameters(),build,configurator.issendFcmPayload(), configurator.getModule(), configurator.getTaxonomy()));
    }

private static class FilesDeployerCallable implements FilePath.FileCallable<List<Artifact>> {

        /**
         * 
         */
        private static final long serialVersionUID = 1L;
        private final String repositoryKey;
        private BuildListener listener;
        private Multimap<String, String> patternPairs;
        private ArtifactoryServer server;
        private Credentials credentials;
        private ArrayListMultimap<String, String> buildProperties;
        private ProxyConfiguration proxyConfiguration;
        private String artifactKey;
        private String buildType;
        private String module;
        private String taxonomy;
        private RpmParameters rpmParameters;
        private final AbstractBuild build;
        private boolean sendFcmPayload;
        private EnvVars env;

        public FilesDeployerCallable(BuildListener listener, Multimap<String, String> patternPairs,
                                     ArtifactoryServer server, Credentials credentials, String repositoryKey,
                                     ArrayListMultimap<String, String> buildProperties, ProxyConfiguration proxyConfiguration,String productKey,String artifactKey, String buildType, RpmParameters rpmParameters, AbstractBuild build, boolean sendFcmPayload, String module, String taxonomy) throws IOException, InterruptedException {
            this.listener = listener;
            this.patternPairs = patternPairs;
            this.server = server;
            this.credentials = credentials;
            this.repositoryKey = repositoryKey;
            this.buildProperties = buildProperties;
            this.proxyConfiguration = proxyConfiguration;
            this.artifactKey = artifactKey;
            this.buildType = buildType;
            this.module = module;
            this.taxonomy = taxonomy;
            this.rpmParameters = rpmParameters;
            this.build = build;
            this.sendFcmPayload = sendFcmPayload;
            this.env = build.getEnvironment(listener);

        }

java.io.IOException: remote file operation failed: /jenkins/slaveworkspace/workspace/githubMigration at hudson.remoting.Channel@44434cf3:master-replicated: java.io.IOException: Unable to serialize hudson.FilePath$FileCallableWrapper@2ca3869b at hudson.FilePath.act(FilePath.java:977) at hudson.FilePath.act(FilePath.java:959) at dj.pib.productivity.generic.GenericArtifactsDeployer.deploy(GenericArtifactsDeployer.java:148) at dj.pib.productivity.generic.ArtifactoryGenericConfigurator.tearDown(ArtifactoryGenericConfigurator.java:352) at hudson.model.Build$BuildExecution.doRun(Build.java:171) at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:533) at hudson.model.Run.execute(Run.java:1759) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43) at hudson.model.ResourceController.execute(ResourceController.java:89) at hudson.model.Executor.run(Executor.java:240) Caused by: java.io.IOException: Unable to serialize hudson.FilePath$FileCallableWrapper@2ca3869b at hudson.remoting.UserRequest.serialize(UserRequest.java:169) at hudson.remoting.UserRequest.(UserRequest.java:63) at hudson.remoting.Channel.call(Channel.java:750) at hudson.FilePath.act(FilePath.java:970) ... 9 more Caused by: java.io.NotSerializableException: hudson.model.FreeStyleBuild at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1183) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347) at hudson.remoting.UserRequest._serialize(UserRequest.java:158) at hudson.remoting.UserRequest.serialize(UserRequest.java:167) ... 12 more Collecting metadata...

我做错了什么？

编辑 1：好的，我看到问题是我在 filesDeployerCallable 中传递 AbstractBuild 构建，它不可序列化，但我需要它来做我做的事情。它确实给了我一个警告（抽象是原始类型，应该参数化）。我如何参数化它？它在 hudson.model.abstractModel

Answer 1

要回答问题如何查明文件是否存在于从站，从主站调用workspace.child("relative/path/to/my.file").exists()应该就足够了。隐藏本地和远程文件之间的差异是 FilePath 存在的原因。

有几种方法可以解决 Jenkins 模型对象不可序列化的问题。

在master上保留逻辑，在slave上发送小任务（Callables）。更容易确保这些任务足够简单，它们永远不需要 Jenkins 模型对象。使用 hudson.Launcher 和 hudson.FilePath 属于这一类。
在发送 Callable 到 slave 之前只提取可序列化的信息。例如，如果您只需要一个构建编号，则无需传输整个构建对象。
使用对象 proxies 因此只有域对象的远程代理会出现在从站上，并且所有方法调用都将通过通道分派。

无法使用插件访问 Jenkins slave 上的文件

Cannot access file on Jenkins slave with plugin

java

jenkins

jenkins-plugins

slave

jenkins-cli