无法让 Jenkins 正常启动和运行

Question

我正在遵循 Jenkins 文档中的“入门”指南；但是，我无法让 Jenkins 正常运行。当我运行命令java -jar jenkins.war --httpPort=8080 时，我收到一系列警告/错误，Jenkins 将无法按预期运行。我无法安装任何插件或完成入门指南的下一步。

我收到的第一个警告是删除临时文件。它似乎失败了，因为该位置没有文件。

Jan 27, 2018 11:58:13 PM Main deleteWinstoneTempContents
WARNING: Failed to delete the temporary Winstone file 
/var/folders/mg/r5m253mx4hz75sk1f_gn5xg80000gn/T/winstone/jenkins.war

我收到的下一个警告是 Jetty 警告。我不知道这里有什么问题，因为我不熟悉 Jetty。

Jan 27, 2018 11:58:16 PM 
org.eclipse.jetty.server.handler.ContextHandler setContextPath
WARNING: Empty contextPath

下一个警告是，

Jan 27, 2018 11:58:34 PM jenkins.slaves.DeprecatedAgentProtocolMonitor 
initializerCheck
WARNING: This Jenkins instance uses deprecated Remoting protocols: CLI-
connect,CLI2-connect,JNLP-connect,JNLP2-connectIt may impact stability 
of the instance. If newer protocol versions are supported by all system 
components (agents, CLI and other clients), it is highly recommended to 
disable the deprecated protocols.

最后，我收到了关于某种类型的 Hudson 或认证问题的冗长堆栈跟踪。

Jan 27, 2018 11:58:37 PM hudson.model.UpdateCenter updateDefaultSite
WARNING: Upgrading Jenkins. Failed to update the default Update Site 
'default'. Plugin upgrades may fail.
javax.net.ssl.SSLHandshakeException: 
sun.security.validator.ValidatorException: PKIX path building failed: 
sun.security.provider.certpath.SunCertPathBuilderException: unable to 
find valid certification path to requested target
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
    at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949)
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302)
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296)
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1509)
    at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979)
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:914)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1513)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1441)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)
    at hudson.model.DownloadService.loadJSON(DownloadService.java:167)
    at hudson.model.UpdateSite.updateDirectlyNow(UpdateSite.java:190)
    at hudson.model.UpdateCenter.updateDefaultSite(UpdateCenter.java:2194)
    at jenkins.install.SetupWizard.init(SetupWizard.java:184)
    at jenkins.install.InstallState$3.initializeState(InstallState.java:105)
    at jenkins.model.Jenkins.setInstallState(Jenkins.java:1037)
    at jenkins.install.InstallUtil.proceedToNextStateFrom(InstallUtil.java:98)
    at jenkins.model.Jenkins.<init>(Jenkins.java:927)
    at hudson.model.Hudson.<init>(Hudson.java:86)
    at hudson.model.Hudson.<init>(Hudson.java:82)
    at hudson.WebAppMain$3.run(WebAppMain.java:233)
Caused by: sun.security.validator.ValidatorException: PKIX path 
building failed: 
sun.security.provider.certpath.SunCertPathBuilderException: unable to 
find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387)
    at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292)
    at sun.security.validator.Validator.validate(Validator.java:260)
    at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)
    at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491)
    ... 23 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: 
unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:146)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:131)
    at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280)
    at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382)
    ... 29 more

正如我所说，我正在逐字遵循他们的指示，它们非常简单，但它不起作用。您可以提供的任何帮助将不胜感激。谢谢。

Answer 1

这可能取决于您的确切设置和操作系统：例如，在 docker 设置中可以看到 jenkinsci/docker issue 422，尽管这是 Dockerfile works。

问题包括：

我遇到了同样的问题，我通过删除环境变量 JENKINS_ARGS 中的选项“--preferedClassLoader”来修复它。

话虽如此，您的本地 Jenkins 实例可能想要连接到 https 站点（例如检查插件更新）。
如果是这种情况，您需要import the certificate of the remote site into your JDK keystore。