ssh로 접속해서 vi /etc/sysconfig/docker 했는데 docker라는 파일이 없어요이건 어찌어찌 따라쳐서 저장했지만...sed -i -e 's/overlay2/vfs/g' /etc/sysconfig/docker-storage해당명령어 실행하니sed: can't read /etc/sysconfig/docker-storage: No such file or directory라고 하네요..

저도 삽질좀했는데요 tomcat 설치를 어떻게 했든지 상관없고apache-tomcat-9.0.65/webapps/manager/META-INF/context.xml파일을 수정하셔서 자신의 IP를 추가 시켜주어야 해결됩니다 저도 계속 apache-tomcat-9.0.65/conf/context.xml 파일을 수정했었는데요 이 파일을 수정하면 문제가 해결이 안됩니다 apache-tomcat-9.0.65/webapps/manager/META-INF/context.xml이 파일의 설정부분에서 Valve 태그에 | 파이프 추가하고 자신의 IP를 추가 해준뒤 tomcat을 shutdown 했다가 다시 startup 해주면 해결됩니다강사님이 설명하시는 부분은 이부분은 Skip 되어있어서 삽질을 좀했네요 ...<Context antiResourceLocking="false" privileged="true" > <CookieProcessor className="org.apache.tomcat.util.http.Rfc6265CookieProcessor" sameSiteCookies="strict" /> <Valve className="org.apache.catalina.valves.RemoteAddrValve" allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1|192.168.50.*" /> <Manager sessionAttributeValueClassNameFilter="java\.lang\.(?:Boolean|Integer|Long|Number|String)|org\.apache\.catalina\.filters\.CsrfPreventionFilter\$LruCache(?:\$1)?|java\.util\.(?:Linked)?HashMap"/> </Context>  

  최신 이미지라 그런지 etc/sysconfig/docker 폴더도 존재하지 않습니다 ..

이 에러때문에 강의가 진행되지않습니다 ㅠㅠ인텔맥이고, 정리된 도커명령어 그대로 작동시켜 ssh 에 접속하려고할때 아래와같은 에러가 발생합니다.. kex_exchange_identification: Connection closed by remote host Connection closed by ::1 port 20022

안녕하세요 인텔칩에서 ssh 도커 실행 명령어를 이용하여 설치 후 ssh 접속시 아래와 같은 에러가 발생합니다. 혹시몰라서 실리콘칩용 도커이미지로 인스톨 후 설치해보았는데, 이때는 ssh 접속이 가능합니다 (내부 도커 실행은불가능했지만) ssh 접속시 known_hosts 를 다시 쓰는 것도 확인하였습니다.구글링을 해봐도 현재 강의내용과 다른 내용이 많아서 직접 질문하는것이 빠를 것 같아 질문드립니다.  kex_exchange_identification: Connection closed by remote host Connection closed by ::1 port 10022 

안녕하세요. 강의 진행 중 에러가 발생하여 질문드립니다. 아래와 같은 에러가 계속 발생하는데 원인을 알 수 있을까요? OS는 맥이며, 젠킨스는 도커로 인스톨하였고, 톰캣은 brew 로 9버전을 인스톨하였습니다. [My-Third-Project] $ /var/jenkins_home/tools/hudson.model.JDK/bin/java -cp /var/jenkins_home/plugins/maven-plugin/WEB-INF/lib/maven35-agent-1.13.jar:/var/jenkins_home/tools/hudson.tasks.Maven_MavenInstallation/Maven3.8.5/boot/plexus-classworlds-2.6.0.jar:/var/jenkins_home/tools/hudson.tasks.Maven_MavenInstallation/Maven3.8.5/conf/logging jenkins.maven3.agent.Maven35Main /var/jenkins_home/tools/hudson.tasks.Maven_MavenInstallation/Maven3.8.5 /var/jenkins_home/war/WEB-INF/lib/remoting-3046.v38db_38a_b_7a_86.jar /var/jenkins_home/plugins/maven-plugin/WEB-INF/lib/maven35-interceptor-1.13.jar /var/jenkins_home/plugins/maven-plugin/WEB-INF/lib/maven3-interceptor-commons-1.13.jar 35605 Exception in thread "main" java.lang.UnsupportedClassVersionError: hudson/remoting/Launcher has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 53.0 at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1007) at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174) at java.base/java.net.URLClassLoader.defineClass(URLClassLoader.java:545) at java.base/java.net.URLClassLoader.access$100(URLClassLoader.java:83) at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:453) at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:447) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:446) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClassFromSelf(ClassRealm.java:425) at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:42) at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239) at jenkins.maven3.agent.Maven35Main.main(Maven35Main.java:135) at jenkins.maven3.agent.Maven35Main.main(Maven35Main.java:65) ERROR: ================================================================================ ERROR: Invalid project setup: Connection reset ERROR: [JENKINS-18403][JENKINS-28294] JDK '' not supported to run Maven projects. ERROR: Maven projects have to be launched with a Java version greater or equal to the minimum version required by the controller. ERROR: Use the Maven JDK Toolchains (plugin) to build your maven project with an older JDK. ERROR: Retrying with agent Java and setting compile/test properties to point to /var/jenkins_home/tools/hudson.model.JDK. ERROR: ================================================================================ Established TCP socket on 43679 [My-Third-Project] $ /opt/java/openjdk/bin/java -cp /var/jenkins_home/plugins/maven-plugin/WEB-INF/lib/maven35-agent-1.13.jar:/var/jenkins_home/tools/hudson.tasks.Maven_MavenInstallation/Maven3.8.5/boot/plexus-classworlds-2.6.0.jar:/var/jenkins_home/tools/hudson.tasks.Maven_MavenInstallation/Maven3.8.5/conf/logging jenkins.maven3.agent.Maven35Main /var/jenkins_home/tools/hudson.tasks.Maven_MavenInstallation/Maven3.8.5 /var/jenkins_home/war/WEB-INF/lib/remoting-3046.v38db_38a_b_7a_86.jar /var/jenkins_home/plugins/maven-plugin/WEB-INF/lib/maven35-interceptor-1.13.jar /var/jenkins_home/plugins/maven-plugin/WEB-INF/lib/maven3-interceptor-commons-1.13.jar 43679 <===[JENKINS REMOTING CAPACITY]===>channel started Executing Maven: -B -f /var/jenkins_home/workspace/My-Third-Project/pom.xml clean compile package [INFO] Scanning for projects... [INFO] [INFO] ----------------------< com.njonecompany.web:web >---------------------- [INFO] Building cicd-web-project maven webapp 1.0 [INFO] --------------------------------[ war ]--------------------------------- [INFO] [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ web --- [INFO] Deleting /var/jenkins_home/workspace/My-Third-Project/target [INFO] [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ web --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] Copying 1 resource [INFO] [INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ web --- [INFO] Changes detected - recompiling the module! [INFO] Compiling 3 source files to /var/jenkins_home/workspace/My-Third-Project/target/classes [INFO] [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ web --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] Copying 1 resource [INFO] [INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ web --- [INFO] Nothing to compile - all classes are up to date [INFO] [INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ web --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] skip non existing resourceDirectory /var/jenkins_home/workspace/My-Third-Project/src/test/resources [INFO] [INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ web --- [INFO] Changes detected - recompiling the module! [INFO] Compiling 1 source file to /var/jenkins_home/workspace/My-Third-Project/target/test-classes [INFO] [INFO] --- maven-surefire-plugin:2.22.0:test (default-test) @ web --- [INFO] [INFO] ------------------------------------------------------- [INFO] T E S T S [INFO] ------------------------------------------------------- [INFO] Running com.njonecompany.web.TestWelcome 01:01:58,334 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback-test.xml] 01:01:58,335 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback.groovy] 01:01:58,335 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Found resource [logback.xml] at [file:/var/jenkins_home/workspace/My-Third-Project/target/classes/logback.xml] 01:01:58,482 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - debug attribute not set 01:01:58,484 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - About to instantiate appender of type [ch.qos.logback.core.ConsoleAppender] 01:01:58,498 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming appender as [STDOUT] 01:01:58,594 |-WARN in ch.qos.logback.core.ConsoleAppender[STDOUT] - This appender no longer admits a layout as a sub-component, set an encoder instead. 01:01:58,594 |-WARN in ch.qos.logback.core.ConsoleAppender[STDOUT] - To ensure compatibility, wrapping your layout in LayoutWrappingEncoder. 01:01:58,594 |-WARN in ch.qos.logback.core.ConsoleAppender[STDOUT] - See also http://logback.qos.ch/codes.html#layoutInsteadOfEncoder for details 01:01:58,596 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting level of logger [com.njonecompany.web] to DEBUG 01:01:58,596 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting additivity of logger [com.njonecompany.web] to false 01:01:58,596 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [STDOUT] to Logger[com.njonecompany.web] 01:01:58,598 |-INFO in ch.qos.logback.classic.joran.action.RootLoggerAction - Setting level of ROOT logger to ERROR 01:01:58,598 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [STDOUT] to Logger[ROOT] 01:01:58,598 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - End of configuration. 01:01:58,599 |-INFO in ch.qos.logback.classic.joran.JoranConfigurator@7d9f158f - Registering current configuration as safe fallback point 2022-09-19 01:02:00 [main] DEBUG c.n.web.controller.WelcomeController - Welcome to njonecompany.com... Mon Sep 19 01:02:00 UTC 2022 MockHttpServletRequest: HTTP Method = GET Request URI = / Parameters = {} Headers = [] Body = <no character encoding set> Session Attrs = {} Handler: Type = com.njonecompany.web.controller.WelcomeController Method = com.njonecompany.web.controller.WelcomeController#index(Model) Async: Async started = false Async result = null Resolved Exception: Type = null ModelAndView: View name = index View = null Attribute = msg value = Hi, there Attribute = today value = Mon Sep 19 01:02:00 UTC 2022 FlashMap: Attributes = null MockHttpServletResponse: Status = 200 Error message = null Headers = [Content-Language:"en"] Content type = null Body = Forwarded URL = /WEB-INF/views/index.jsp Redirected URL = null Cookies = [] [INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.889 s - in com.njonecompany.web.TestWelcome [INFO] [INFO] Results: [INFO] [INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0 [INFO] [JENKINS] Recording test results [INFO] [INFO] --- maven-war-plugin:3.2.2:war (default-war) @ web --- [INFO] Packaging webapp [INFO] Assembling webapp [web] in [/var/jenkins_home/workspace/My-Third-Project/target/hello-world] [INFO] Processing war project [INFO] Copying webapp resources [/var/jenkins_home/workspace/My-Third-Project/src/main/webapp] [INFO] Webapp assembled in [70 msecs] [INFO] Building war: /var/jenkins_home/workspace/My-Third-Project/target/hello-world.war [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 11.011 s [INFO] Finished at: 2022-09-19T01:02:03Z [INFO] ------------------------------------------------------------------------ Waiting for Jenkins to finish collecting data [JENKINS] Archiving /var/jenkins_home/workspace/My-Third-Project/pom.xml to com.njonecompany.web/web/1.0/web-1.0.pom [JENKINS] Archiving /var/jenkins_home/workspace/My-Third-Project/target/hello-world.war to com.njonecompany.web/web/1.0/web-1.0.war [DeployPublisher][INFO] Attempting to deploy 1 war file(s) [DeployPublisher][INFO] Deploying /var/jenkins_home/workspace/My-Third-Project/target/hello-world.war to container Tomcat 9.x Remote with context null ERROR: Build step failed with exception org.codehaus.cargo.container.ContainerException: Failed to redeploy [/var/jenkins_home/workspace/My-Third-Project/target/hello-world.war] at org.codehaus.cargo.container.tomcat.internal.AbstractTomcatManagerDeployer.redeploy(AbstractTomcatManagerDeployer.java:176) at hudson.plugins.deploy.CargoContainerAdapter.deploy(CargoContainerAdapter.java:81) at hudson.plugins.deploy.CargoContainerAdapter$DeployCallable.invoke(CargoContainerAdapter.java:167) at hudson.plugins.deploy.CargoContainerAdapter$DeployCallable.invoke(CargoContainerAdapter.java:136) at hudson.FilePath.act(FilePath.java:1192) at hudson.FilePath.act(FilePath.java:1175) at hudson.plugins.deploy.CargoContainerAdapter.redeployFile(CargoContainerAdapter.java:133) at hudson.plugins.deploy.PasswordProtectedAdapterCargo.redeployFile(PasswordProtectedAdapterCargo.java:95) at hudson.plugins.deploy.DeployPublisher.perform(DeployPublisher.java:113) at jenkins.tasks.SimpleBuildStep.perform(SimpleBuildStep.java:123) at hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:80) at hudson.tasks.BuildStepMonitor$3.perform(BuildStepMonitor.java:47) at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:818) at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:767) at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.post2(MavenModuleSetBuild.java:1072) at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:711) at hudson.model.Run.execute(Run.java:1924) at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:543) at hudson.model.ResourceController.execute(ResourceController.java:107) at hudson.model.Executor.run(Executor.java:449) Caused by: org.codehaus.cargo.container.tomcat.internal.TomcatManagerException: The username you provided is not allowed to use the text-based Tomcat Manager (error 403) at org.codehaus.cargo.container.tomcat.internal.TomcatManager.invoke(TomcatManager.java:710) at org.codehaus.cargo.container.tomcat.internal.TomcatManager.list(TomcatManager.java:882) at org.codehaus.cargo.container.tomcat.internal.TomcatManager.getStatus(TomcatManager.java:895) at org.codehaus.cargo.container.tomcat.internal.AbstractTomcatManagerDeployer.redeploy(AbstractTomcatManagerDeployer.java:161) ... 19 more Caused by: java.io.IOException: Server returned HTTP response code: 403 for URL: http://192.168.86.216:8081/manager/text/list at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1924) at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1520) at org.codehaus.cargo.container.tomcat.internal.TomcatManager.invoke(TomcatManager.java:577) ... 22 more org.codehaus.cargo.container.tomcat.internal.TomcatManagerException: The username you provided is not allowed to use the text-based Tomcat Manager (error 403) at org.codehaus.cargo.container.tomcat.internal.TomcatManager.invoke(TomcatManager.java:710) at org.codehaus.cargo.container.tomcat.internal.TomcatManager.list(TomcatManager.java:882) at org.codehaus.cargo.container.tomcat.internal.TomcatManager.getStatus(TomcatManager.java:895) at org.codehaus.cargo.container.tomcat.internal.AbstractTomcatManagerDeployer.redeploy(AbstractTomcatManagerDeployer.java:161) at hudson.plugins.deploy.CargoContainerAdapter.deploy(CargoContainerAdapter.java:81) at hudson.plugins.deploy.CargoContainerAdapter$DeployCallable.invoke(CargoContainerAdapter.java:167) at hudson.plugins.deploy.CargoContainerAdapter$DeployCallable.invoke(CargoContainerAdapter.java:136) at hudson.FilePath.act(FilePath.java:1192) at hudson.FilePath.act(FilePath.java:1175) at hudson.plugins.deploy.CargoContainerAdapter.redeployFile(CargoContainerAdapter.java:133) at hudson.plugins.deploy.PasswordProtectedAdapterCargo.redeployFile(PasswordProtectedAdapterCargo.java:95) at hudson.plugins.deploy.DeployPublisher.perform(DeployPublisher.java:113) at jenkins.tasks.SimpleBuildStep.perform(SimpleBuildStep.java:123) at hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:80) at hudson.tasks.BuildStepMonitor$3.perform(BuildStepMonitor.java:47) at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:818) at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:767) at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.post2(MavenModuleSetBuild.java:1072) at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:711) at hudson.model.Run.execute(Run.java:1924) at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:543) at hudson.model.ResourceController.execute(ResourceController.java:107) at hudson.model.Executor.run(Executor.java:449) Caused by: java.io.IOException: Server returned HTTP response code: 403 for URL: http://192.168.86.216:8081/manager/text/list at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1924) at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1520) at org.codehaus.cargo.container.tomcat.internal.TomcatManager.invoke(TomcatManager.java:577) ... 22 more Build step 'Deploy war/ear to a container' marked build as failure Finished: FAILURE

안녕하세요? 강의대로 모두 따라했는데, Build할 때 아래와 같이 문제가 발생합니다 ㅠ[DeployPublisher][INFO] Deploying /var/lib/jenkins/workspace/JunyHarang-Tomcat-Project/target/hello-world.war to container Tomcat 9.x Remote with context null ERROR: Build step failed with exception org.codehaus.cargo.container.ContainerException: Failed to redeploy [/var/lib/jenkins/workspace/JunyHarang-Tomcat-Project/target/hello-world.war] at org.codehaus.cargo.container.tomcat.internal.AbstractTomcatManagerDeployer.redeploy(AbstractTomcatManagerDeployer.java:176) at hudson.plugins.deploy.CargoContainerAdapter.deploy(CargoContainerAdapter.java:81) at hudson.plugins.deploy.CargoContainerAdapter$DeployCallable.invoke(CargoContainerAdapter.java:167) at hudson.plugins.deploy.CargoContainerAdapter$DeployCallable.invoke(CargoContainerAdapter.java:136) at hudson.FilePath.act(FilePath.java:1192) at hudson.FilePath.act(FilePath.java:1175) at hudson.plugins.deploy.CargoContainerAdapter.redeployFile(CargoContainerAdapter.java:133) at hudson.plugins.deploy.PasswordProtectedAdapterCargo.redeployFile(PasswordProtectedAdapterCargo.java:95) at hudson.plugins.deploy.DeployPublisher.perform(DeployPublisher.java:113) at jenkins.tasks.SimpleBuildStep.perform(SimpleBuildStep.java:123) at hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:80) at hudson.tasks.BuildStepMonitor$3.perform(BuildStepMonitor.java:47) at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:816) at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:765) at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.post2(MavenModuleSetBuild.java:1072) at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:709) at hudson.model.Run.execute(Run.java:1924) at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:543) at hudson.model.ResourceController.execute(ResourceController.java:107) at hudson.model.Executor.run(Executor.java:449) Caused by: java.net.ConnectException: Connection timed out (Connection timed out) at java.base/java.net.PlainSocketImpl.socketConnect(Native Method) at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:412) at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:255) at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:237) at java.base/java.net.Socket.connect(Socket.java:609) at java.base/java.net.Socket.connect(Socket.java:558) at java.base/sun.net.NetworkClient.doConnect(NetworkClient.java:182) at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:508) at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:603) at java.base/sun.net.www.http.HttpClient.<init>(HttpClient.java:276) at java.base/sun.net.www.http.HttpClient.New(HttpClient.java:375) at java.base/sun.net.www.http.HttpClient.New(HttpClient.java:396) at java.base/sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1253) at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1187) at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1081) at java.base/sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:1015) at org.codehaus.cargo.container.tomcat.internal.TomcatManager.invoke(TomcatManager.java:567) at org.codehaus.cargo.container.tomcat.internal.TomcatManager.list(TomcatManager.java:882) at org.codehaus.cargo.container.tomcat.internal.TomcatManager.getStatus(TomcatManager.java:895) at org.codehaus.cargo.container.tomcat.internal.AbstractTomcatManagerDeployer.redeploy(AbstractTomcatManagerDeployer.java:161) ... 19 more java.net.ConnectException: Connection timed out (Connection timed out) at java.base/java.net.PlainSocketImpl.socketConnect(Native Method) at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:412) at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:255) at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:237) at java.base/java.net.Socket.connect(Socket.java:609) at java.base/java.net.Socket.connect(Socket.java:558) at java.base/sun.net.NetworkClient.doConnect(NetworkClient.java:182) at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:508) at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:603) at java.base/sun.net.www.http.HttpClient.<init>(HttpClient.java:276) at java.base/sun.net.www.http.HttpClient.New(HttpClient.java:375) at java.base/sun.net.www.http.HttpClient.New(HttpClient.java:396) at java.base/sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1253) at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1187) at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1081) at java.base/sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:1015) at org.codehaus.cargo.container.tomcat.internal.TomcatManager.invoke(TomcatManager.java:567) at org.codehaus.cargo.container.tomcat.internal.TomcatManager.list(TomcatManager.java:882) at org.codehaus.cargo.container.tomcat.internal.TomcatManager.getStatus(TomcatManager.java:895) at org.codehaus.cargo.container.tomcat.internal.AbstractTomcatManagerDeployer.redeploy(AbstractTomcatManagerDeployer.java:161) at hudson.plugins.deploy.CargoContainerAdapter.deploy(CargoContainerAdapter.java:81) at hudson.plugins.deploy.CargoContainerAdapter$DeployCallable.invoke(CargoContainerAdapter.java:167) at hudson.plugins.deploy.CargoContainerAdapter$DeployCallable.invoke(CargoContainerAdapter.java:136) at hudson.FilePath.act(FilePath.java:1192) at hudson.FilePath.act(FilePath.java:1175) at hudson.plugins.deploy.CargoContainerAdapter.redeployFile(CargoContainerAdapter.java:133) at hudson.plugins.deploy.PasswordProtectedAdapterCargo.redeployFile(PasswordProtectedAdapterCargo.java:95) at hudson.plugins.deploy.DeployPublisher.perform(DeployPublisher.java:113) at jenkins.tasks.SimpleBuildStep.perform(SimpleBuildStep.java:123) at hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:80) at hudson.tasks.BuildStepMonitor$3.perform(BuildStepMonitor.java:47) at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:816) at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:765) at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.post2(MavenModuleSetBuild.java:1072) at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:709) at hudson.model.Run.execute(Run.java:1924) at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:543) at hudson.model.ResourceController.execute(ResourceController.java:107) at hudson.model.Executor.run(Executor.java:449) Build step 'Deploy war/ear to a container' marked build as failure Finished: FAILURE

안녕하세요?ssh 서버 실행 시 Conflict, The container name "/docker-server" is already in use by container "4a08bbeafb65" 라고 에러가 나오네요.명령어는 아래와 같이 입력했고docker run --privileged --name docker-server -itd -p 10022:22 -p 8081:8080 -e container=docker -v /sys/fs/cgorup:/sys/fs/cgroup edowon0623/docker:latest /usr/sbin/initdocker ps 라고 입력 시 아무것도 안나오는데docker ps -a 입력하면 위의 4a08bbeafb65 가 Created 상태입니다. 인터넷 찾아보니 삭제하고 해보라고 해서 해 봐도 안되네요.윈도우 10 사용자입니다.위 그림은 실행 상황입니다. 두 번째 그림은 docker desktop 에서 실행하려고 할 때도 같은 메시지가 나옵니다. 

안녕하세요? Kubernetes Master Server가 강제 재부팅 된 뒤 문제가 발생하여 문의 드립니다.위와 같이 Kubectl 명령어가 현재 먹지 않는 상태이고,검색을 해 보니 아래와 같이 해보래서 해 보았으나, 해결되지 않고 있습니다. Service에 대해 상태를 확인을 해보면 위와 같이 실패로 나오고, 재부팅, Service 재시작 등을 해보아도 해결이 되지 않고 있습니다.journalctl -xeu kubelet 명령어로 확인하면위와 같이 나오고 있습니다!

 안녕하세요~Ansible playbook으로 Kubernetes Script 실행하기 위해서ansible 서버에서 ssh-copy-id를 통해 쿠버네티스 로컬서버로 접속하고자 하는데이 명령어가 정상적으로 실행이 되지 않고 있습니다.윈도우 사용자이고, 마이크로 계정으로 자동 연동된 로그인 사용하고 있습니다.아래의 이미지와 같이 에러메세지를 확인할 수가 없어서 원인이 뭔지 잘 모르겠네요 ^^;이 작업이 정상적으로 되지 않아 다음 수업진행이 어렵습니다.확인 부탁드릴께요감사합니다.

안녕하세요?https://github.com/joneconsulting/k8s/blob/master/install/kubernetes_install.md이거 보고 CentOS에 가상 머신 3개(CentOS 7)으로 올린 뒤 진행하던 중 문제가 발생하여 질문드립니다.데쉬보드를 VM Host Server에서 Firefox로 접근을 해보고 싶은데,위와 같이 접근을 할 수 가 없는 상태 입니다.하지만 Local에서 curl 명령어를 통해 API 테스트를 하면 아래와 같이 정상 처리 되는 것을 볼 수 있습니다.각 VM Server는 CLI Mode만 이용하고 싶어서 GUI가 아닌데, HOST Server 혹은 외부에서 접속을 하려면 어떻게 해야 하나요??그리고, 마지막 TEST부분에서 Port Fowarding된 Port 번호를 어떻게 확인할 수 있나요?

안녕하세요.ssh-server 실행할 때 옵션추가된 명령어로 실행하도록 문의 답변 주셨는데요, 추가된 옵션에 대해 설명을 해주실수 있을까요?docker run --privileged --name docker-server -itd -p 10022:22 -p 8081:8080 -e container=docker -v /sys/fs/cgroup:/sys/fs/cgroup:rw --cgroupns=host edowon0623/docker-server:m1 /usr/sbin/init(볼륨에 :rw가 추가되었고, --cgroupns=host 이 추가된 것으로 보입니다)[질문]/sys/fs/cgroup 를 volume으로 설정하는 이유-v /sys/fs/cgroup:/sys/fs/cgroup:rw --cgroupns = host 를 추가해야하는 이유(이하 문서 내용 발췌)--cgroupns (API 1.41+) cgroup namespace to use (host|private) - 'host': Run the container in the Docker host's cgroup namespace - 'private': Run the container in its own private cgroup namespace - '': Use the cgroup namespace as configured by the default-cgroupns-mode option on the daemon (default)감사합니다.

안녕하세요.강의에 사용하시는 PPT 자료 받을 수 있을지 문의 드립니다.감사합니다.

docker run --privileged --name docker-server -itd -p 10022:22 -p 8081:8080 -e container=docker -v /sys/fs/cgroup:/sys/fs/cgroup edowon0623/docker:latest /usr/sbin이렇게 실행하고 ssh root@localhsot - p 10022로 접속을 하려고 하니 Could not resolve hostname localhsot: \276\313\267\301\301\370 \310\243\275\272\306\256\260\241 \276\370\275\300\264\317\264\331.이렇게 에러가 발생합니다.

실습 진행이 안되는데 더 확인해봐야 할 게 있을까요?

안녕하세요 K8S 통신 관련 문의 드립니다. 현재 kubectl get nodes 명령어를 입력 시 다음과 같이 모든 Node에서 Ready 상태가 정상적으로 뜨지만     해당 내용의 YAML파일을 바탕으로 kubectl apply -f nginx-pod.yaml 명령어를 사용하여 해당 Pod 가 정상적으로 생성,동작됨이 확인됩니다. kubectl describe pods my-nignx-pod 명령어를 사용하여 해당 pod의 IP주소를 확인하였고 curl 20.102.133.4 명령어를 통해 해당 pod로 접속시도를 해보았으나 다음과 같이 응답을 하지 않습니다. 혹시나 싶어 해당 Pod가 있는 VM의 IP 주소인 10.0.0.6 으로 Ping 테스트를 해보았을때는 Ping은 이상없이 잘 동작합니다.   해당 Pod에 대한 접속 방법에대해 말씀해주시면 감사하겠습니다.   감사합니다.

말씀해주신 내용을 따라하면서 kubeadm init 를 실행한 결과 해당 에러가 발생하면서 init 되지 않습니다. 구글링하다가 도저히 찾지못해서 문의드려봅니다. 확인 감사합니다 ~ [init] Using Kubernetes version: v1.24.2[preflight] Running pre-flight checks        [WARNING SystemVerification]: missing optional cgroups: hugetlberror execution phase preflight: [preflight] Some fatal errors occurred:        [ERROR CRI]: container runtime is not running: output: time="2022-07-09T17:26:03Z" level=fatal msg="unable to determine runtime API version: rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing dial unix /var/run/containerd/containerd.sock: connect: no such file or directory\""   환경: GCS VM instance, Debian GNU/Linux 10

helm과는 좀 벗어나는 얘기지만 그래도 딱히 해결할 곳이 없어서 문의합니다.    모니터링이라고 하면 시스템이 죽고 살고, 자원을 얼마나 쓰고 얼마나 남았고 를 봐야 할거 같은데요.  전통적인 서버-application 인 시스템은   서버의 자원을 모니터링하고,  application이 죽었나 살았나 확인하고.    이렇게 되어 있습니다.    근데 여기서 k8s라는 한 layer가 더 들어오다 보니 도통 어디를 봐야 할지가 혼동이 옵니다.  시스템 자원만 보기에는,  k8s에서 할당한 자원, 즉 pods 내부를 모니터링 해야 하는건지  그 방법이 있는건지,  거기에 더해 pod이 죽고 살고 deployment가 몇개가 문제가 발생 했고 등    이런것들을 속시원히 모니터링 할 수 있는 툴이 좀 있을까요?  다양한 노드, 호스트들의 자원, 서비스 현황, pods상태 등을 하나의 대시보드로 보고 싶습니다....    

안녕하세요.   ServiceAccount와 role간에는 RoleBinding을 통해서 하는거는 설명을 잘 해주셔서 이해가 잘 됩니다.   그런데, ServiceAccount에 사용자들을 어떻게 할당하는지 모르겠습니다. (ServiceAccount에 있는 token을 사용자 pc에서 kubectl접속이 가능하게 세팅을 할때, 입력하는 토큰을 통해서는 하는걸가요?)

설치중에 아래의 메세지에서 계속해서 멈춰있는 상황입니다. 어떤 문제가 있을지 궁금합니다. 해당 url의 download는 정상적으로 보여집니다. 확인 부탁드립니다   -C:\Users\myoun\k8s>vagrant up Bringing machine 'k8s-master' up with 'virtualbox' provider... Bringing machine 'k8s-node1' up with 'virtualbox' provider... Bringing machine 'k8s-node2' up with 'virtualbox' provider... ==> k8s-master: Box 'centos/7' could not be found. Attempting to find and install... k8s-master: Box Provider: virtualbox k8s-master: Box Version: >= 0 ==> k8s-master: Loading metadata for box 'centos/7' k8s-master: URL: https://vagrantcloud.com/centos/7 ==> k8s-master: Adding box 'centos/7' (v2004.01) for provider: virtualbox k8s-master: Downloading: https://vagrantcloud.com/centos/boxes/7/versions/2004.01/providers/virtualbox.box ==> k8s-master: Box download is resuming from prior download progress