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AD ログインを実装しようとした後、Jenkins が実行に失敗する

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AD ログインを実装しようとした後、Jenkins が実行に失敗する

Active Directory でセットアップしようとした Jenkins インスタンスがあります。その後、どのユーザーもどの認証情報でもログインできなくなったため、サーバーにアクセスして Active Directory プラグインを削除し、構成を削除してサーバーを再起動しようとしました。現在、次のエラーが表示されています。

com.thoughtworks.xstream.mapper.CannotResolveClassException: hudson.plugins.active_directory.ActiveDirectorySecurityRealm
at com.thoughtworks.xstream.mapper.DefaultMapper.realClass(DefaultMapper.java:79)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.DynamicProxyMapper.realClass(DynamicProxyMapper.java:55)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.PackageAliasingMapper.realClass(PackageAliasingMapper.java:88)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.ClassAliasingMapper.realClass(ClassAliasingMapper.java:79)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.ArrayMapper.realClass(ArrayMapper.java:74)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.SecurityMapper.realClass(SecurityMapper.java:71)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at hudson.util.XStream2$CompatibilityMapper.realClass(XStream2.java:379)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at hudson.util.xstream.MapperDelegate.realClass(MapperDelegate.java:43)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
at com.thoughtworks.xstream.mapper.CachingMapper.realClass(CachingMapper.java:48)
at hudson.util.RobustReflectionConverter.determineType(RobustReflectionConverter.java:461)
at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:327)
Caused: jenkins.util.xstream.CriticalXStreamException:           hudson.plugins.active_directory.ActiveDirectorySecurityRealm : hudson.plugins.active_directory.ActiveDirectorySecurityRealm
---- Debugging information ----
message             :     hudson.plugins.active_directory.ActiveDirectorySecurityRealm
cause-exception     : com.thoughtworks.xstream.mapper.CannotResolveClassException
cause-message       : hudson.plugins.active_directory.ActiveDirectorySecurityRealm
class               : hudson.model.Hudson
required-type       : hudson.model.Hudson
converter-type      : hudson.util.RobustReflectionConverter
path                : /hudson/securityRealm
line number         : 15
version             : not available
-------------------------------
at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:356)
at hudson.util.RobustReflectionConverter.unmarshal(RobustReflectionConverter.java:270)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:72)
at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:65)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:50)
at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:134)
at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:32)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1189)
at hudson.util.XStream2.unmarshal(XStream2.java:161)
at hudson.util.XStream2.unmarshal(XStream2.java:132)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1173)
at hudson.XmlFile.unmarshal(XmlFile.java:178)
Caused: java.io.IOException: Unable to read /data/jenkins/config.xml
at hudson.XmlFile.unmarshal(XmlFile.java:181)
at hudson.XmlFile.unmarshal(XmlFile.java:161)
at jenkins.model.Jenkins.loadConfig(Jenkins.java:3005)
at jenkins.model.Jenkins.access$1200(Jenkins.java:304)
at jenkins.model.Jenkins$14.run(Jenkins.java:3104)
at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169)
at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:296)
at jenkins.model.Jenkins$5.runTask(Jenkins.java:1068)
at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:214)
at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
at java.lang.Thread.run(Thread.java:748)
Caused: org.jvnet.hudson.reactor.ReactorException
at org.jvnet.hudson.reactor.Reactor.execute(Reactor.java:282)
at jenkins.InitReactorRunner.run(InitReactorRunner.java:48)
at jenkins.model.Jenkins.executeReactor(Jenkins.java:1102)
at jenkins.model.Jenkins.<init>(Jenkins.java:904)
at hudson.model.Hudson.<init>(Hudson.java:85)
at hudson.model.Hudson.<init>(Hudson.java:81)
at hudson.WebAppMain$3.run(WebAppMain.java:233)
Caused: hudson.util.HudsonFailedToLoad
at hudson.WebAppMain$3.run(WebAppMain.java:250)

ログインできるようにプラグインのすべての出現を無効にする別の方法はありますか?

答え1

/var/lib/jenkins/config.xmlこれは、次のようなセクションが含まれているためであると考えられます。

  <securityRealm class="hudson.plugins.active_directory.ActiveDirectorySecurityRealm" plugin="[email protected]">
    <domains>
      <hudson.plugins.active__directory.ActiveDirectoryDomain>
        <name>ad.example.com</name>
        <bindPassword>{some obfuscated password here}</bindPassword>
      </hudson.plugins.active__directory.ActiveDirectoryDomain>
    </domains>
    <startTls>true</startTls>
    <groupLookupStrategy>RECURSIVE</groupLookupStrategy>
    <removeIrrelevantGroups>true</removeIrrelevantGroups>
    <tlsConfiguration>TRUST_ALL_CERTIFICATES</tlsConfiguration>
  </securityRealm>

以下の手順で管理者アクセスを取得できます。これにより、匿名ユーザーに管理者アクセスが (一時的に) 付与されるため、注意して使用してください。

Jenkins をシャットダウンし、securityRealmから上記のセクションを削除しconfig.xml、次のセクションも変更します。

<useSecurity>true</useSecurity>

これに:

<useSecurity>false</useSecurity>

Jenkins をもう一度起動します。この時点で、Web UI を使用して authn/authz プラグインを再インストール/構成できます。

参照Jenkinsの管理者バックドアに関する質問。

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