ubuntu - 在 minikube 中运行 jenkins 时出错

Question

在 pod 内运行 jenkins 时，它显示 jenkins 已启动并正在运行，但出现这个长错误。

我在 pod 内执行的命令:

docker run --name=jenkins-container docker-jenkins

错误日志:

 Running from: /usr/share/jenkins/jenkins.war
    webroot: EnvVars.masterEnvVars.get("JENKINS_HOME")
    2020-06-07 03:32:13.394+0000 [id=1]     INFO    org.eclipse.jetty.util.log.Log#initialized: Logging initialized @519ms to org.eclipse.jetty.util.log.JavaUtilLog
    2020-06-07 03:32:13.588+0000 [id=1]     INFO    winstone.Logger#logInternal: Beginning extraction from war file
    2020-06-07 03:32:15.180+0000 [id=1]     WARNING o.e.j.s.handler.ContextHandler#setContextPath: Empty contextPath
    2020-06-07 03:32:15.302+0000 [id=1]     INFO    org.eclipse.jetty.server.Server#doStart: jetty-9.4.27.v20200227; built: 2020-02-27T18:37:21.340Z; git: a304fd9f351f337e7c0e2a7c28878dd536149c6c; jvm 1.8.0_242-b08
    2020-06-07 03:32:15.764+0000 [id=1]     INFO    o.e.j.w.StandardDescriptorProcessor#visitServlet: NO JSP Support for /, did not find org.eclipse.jetty.jsp.JettyJspServlet
    2020-06-07 03:32:15.888+0000 [id=1]     INFO    o.e.j.s.s.DefaultSessionIdManager#doStart: DefaultSessionIdManager workerName=node0
    2020-06-07 03:32:15.888+0000 [id=1]     INFO    o.e.j.s.s.DefaultSessionIdManager#doStart: No SessionScavenger set, using defaults
    2020-06-07 03:32:15.897+0000 [id=1]     INFO    o.e.j.server.session.HouseKeeper#startScavenging: node0 Scavenging every 660000ms
    2020-06-07 03:32:16.757+0000 [id=1]     INFO    hudson.WebAppMain#contextInitialized: Jenkins home directory: /var/jenkins_home found at: EnvVars.masterEnvVars.get("JENKINS_HOME")
    2020-06-07 03:32:16.944+0000 [id=1]     INFO    o.e.j.s.handler.ContextHandler#doStart: Started w.@5b800468{Jenkins v2.239,/,file:///var/jenkins_home/war/,AVAILABLE}{/var/jenkins_home/war}
    2020-06-07 03:32:17.001+0000 [id=1]     INFO    o.e.j.server.AbstractConnector#doStart: Started ServerConnector@6f43c82{HTTP/1.1, (http/1.1)}{0.0.0.0:8080}
    2020-06-07 03:32:17.001+0000 [id=1]     INFO    org.eclipse.jetty.server.Server#doStart: Started @4126ms
    2020-06-07 03:32:17.003+0000 [id=21]    INFO    winstone.Logger#logInternal: Winstone Servlet Engine running: controlPort=disabled
    2020-06-07 03:32:18.622+0000 [id=27]    INFO    jenkins.InitReactorRunner$1#onAttained: Started initialization
    2020-06-07 03:32:18.725+0000 [id=27]    INFO    jenkins.InitReactorRunner$1#onAttained: Listed all plugins
    2020-06-07 03:32:20.825+0000 [id=33]    INFO    jenkins.InitReactorRunner$1#onAttained: Prepared all plugins
    2020-06-07 03:32:20.838+0000 [id=28]    INFO    jenkins.InitReactorRunner$1#onAttained: Started all plugins
    2020-06-07 03:32:20.863+0000 [id=31]    INFO    jenkins.InitReactorRunner$1#onAttained: Augmented all extensions
    2020-06-07 03:32:21.808+0000 [id=26]    INFO    jenkins.InitReactorRunner$1#onAttained: System config loaded
    2020-06-07 03:32:21.809+0000 [id=29]    INFO    jenkins.InitReactorRunner$1#onAttained: System config adapted
    2020-06-07 03:32:21.957+0000 [id=26]    INFO    jenkins.InitReactorRunner$1#onAttained: Loaded all jobs
    2020-06-07 03:32:21.960+0000 [id=28]    INFO    jenkins.InitReactorRunner$1#onAttained: Configuration for all jobs updated
    2020-06-07 03:32:22.086+0000 [id=46]    INFO    hudson.model.AsyncPeriodicWork#lambda$doRun$0: Started Download metadata
    2020-06-07 03:32:22.136+0000 [id=46]    INFO    hudson.util.Retrier#start: Attempt #1 to do the action check updates server
    2020-06-07 03:32:22.635+0000 [id=27]    INFO    jenkins.install.UpgradeWizard#applyForcedChanges: New API token system configured with insecure options to keep legacy behavior
    2020-06-07 03:32:22.884+0000 [id=46]    INFO    hudson.util.Retrier#start: The attempt #1 to do the action check updates server failed with an allowed exception:
    java.net.NoRouteToHostException: No route to host (Host unreachable)
            at java.net.PlainSocketImpl.socketConnect(Native Method)
            at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
            at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
            at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
            at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
            at java.net.Socket.connect(Socket.java:607)
            at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:666)
            at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
            at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
            at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
            at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)
            at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
            at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
            at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1162)
            at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1056)
            at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
            at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1570)
            at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1498)
            at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:268)
            at hudson.model.DownloadService.loadJSON(DownloadService.java:114)
            at hudson.model.UpdateSite.updateDirectlyNow(UpdateSite.java:212)
            at hudson.model.UpdateSite.updateDirectlyNow(UpdateSite.java:207)
            at hudson.PluginManager.checkUpdatesServer(PluginManager.java:1767)
            at hudson.util.Retrier.start(Retrier.java:63)
            at hudson.PluginManager.doCheckUpdatesServer(PluginManager.java:1738)
            at jenkins.DailyCheck.execute(DailyCheck.java:93)
            at hudson.model.AsyncPeriodicWork.lambda$doRun$0(AsyncPeriodicWork.java:100)
            at java.lang.Thread.run(Thread.java:748)
    2020-06-07 03:32:22.885+0000 [id=46]    INFO    hudson.util.Retrier#start: Calling the listener of the allowed exception 'No route to host (Host unreachable)' at the attempt #1 to do the action check updates server
    2020-06-07 03:32:22.887+0000 [id=46]    INFO    hudson.util.Retrier#start: Attempted the action check updates server for 1 time(s) with no success
    2020-06-07 03:32:22.888+0000 [id=46]    SEVERE  hudson.PluginManager#doCheckUpdatesServer: Error checking update sites for 1 attempt(s). Last exception was: NoRouteToHostException: No route to host (Host unreachable)
    2020-06-07 03:32:22.900+0000 [id=46]    INFO    hudson.model.AsyncPeriodicWork#lambda$doRun$0: Finished Download metadata. 802 ms
    2020-06-07 03:32:23.166+0000 [id=32]    INFO    jenkins.InitReactorRunner$1#onAttained: Completed initialization
    2020-06-07 03:32:23.393+0000 [id=20]    INFO    hudson.WebAppMain$3#run: Jenkins is fully up and running

任何解决方案？

如何在 kubernetes 上部署 jenkins 并执行它

Answer 1

On running Jenkins inside the pod Command I executed inside the pod: docker run --name=jenkins-container docker-jenkins

Pod 运行 Docker 容器，如果 Jenkins 是从 Pod 内部使用 docker run 启动的，Jenkins 将成为“Docker 中的 Docker”。

有可能遇到 a lot of problems Docker 在另一个 Docker 容器中运行。一个更好的方法是容器不运行自己的 Docker 守护进程，而是连接到主机系统的 Docker 守护进程。

更好的解决方案是将 Jenkins 作为 Pod(而不是作为 Pod 内的容器)运行。

How to deploy Jenkins on Kubernetes and execute it

有一个已经好的 script这允许您在 minikube 上使用动态启动的 Jenkins 从站来设置持久的 Jenkins 主站。
基本上它指的是以下(经过验证的)完整教程 how to set up Jenkins on minikube .

希望有帮助。