Today I was facing some strange issue, when I was trying to connect to the Kubernetes in remote sever got the error as "unable to connect to server: x509: certificate signed by unknown authority".
The Solution is make sure you disable the --insecure-skip-tls-verify by following the posts.
Happy Solvings !!!
Error:
Many have faced the following error while configuring the docker in Jenkins.
COPY failed: stat /var/lib/docker/tmp/docker-builder086957739/C:\Users\Syed\AppData\Local\Jenkins\.jenkins\workspace\GreetUser\GreetUser\target\*.jar: no such file or directory
Error: Invalid or corrupt jarfile /app.jar
Error: Unable to access jarfile target/*.jar
Resolution:
If you come across the above, make sure you have configured like below in the docker file.
FROM openjdk:8-jdk-alpine
RUN addgroup -S spring && adduser -S spring -G spring
USER spring:spring
copy ${workspace}//GreetUser//target//GreetUser-0.0.1-SNAPSHOT.jar /app.jar
ENTRYPOINT ["java","-jar","/app.jar"]
Happy Finding!!!!
I have encountered the following error while executing the stages of the pipeline. I have used the Plugins Kubernetes Continuous Deploy 2.3.1 and Jackson 2 API 2.11.3
both of the plugins cause the below issue.
Error Log:
[Pipeline] { (Deploy on kubernetes)
[Pipeline] script
[Pipeline] {
[Pipeline] kubernetesDeploy
Starting Kubernetes deployment
Loading configuration: C:\Users\Syed\AppData\Local\Jenkins\.jenkins\workspace\Maven-Pipeline\GreetUser\greet.yaml
ERROR: ERROR: Can't construct a java object for tag:yaml.org,2002:io.kubernetes.client.openapi.models.V1Service; exception=Class not found: io.kubernetes.client.openapi.models.V1Service
in 'reader', line 1, column 1:
apiVersion: v1
^
hudson.remoting.ProxyException: Can't construct a java object for tag:yaml.org,2002:io.kubernetes.client.openapi.models.V1Service; exception=Class not found: io.kubernetes.client.openapi.models.V1Service
in 'reader', line 1, column 1:
apiVersion: v1
^
at org.yaml.snakeyaml.constructor.Constructor$ConstructYamlObject.construct(Constructor.java:335)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:229)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219)
at io.kubernetes.client.util.Yaml$CustomConstructor.constructObject(Yaml.java:337)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173)
at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157)
at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:490)
at org.yaml.snakeyaml.Yaml.loadAs(Yaml.java:456)
at io.kubernetes.client.util.Yaml.loadAs(Yaml.java:224)
at io.kubernetes.client.util.Yaml.modelMapper(Yaml.java:494)
at io.kubernetes.client.util.Yaml.loadAll(Yaml.java:272)
at com.microsoft.jenkins.kubernetes.wrapper.KubernetesClientWrapper.apply(KubernetesClientWrapper.java:236)
at com.microsoft.jenkins.kubernetes.command.DeploymentCommand$DeploymentTask.doCall(DeploymentCommand.java:172)
at com.microsoft.jenkins.kubernetes.command.DeploymentCommand$DeploymentTask.call(DeploymentCommand.java:124)
at com.microsoft.jenkins.kubernetes.command.DeploymentCommand$DeploymentTask.call(DeploymentCommand.java:106)
at hudson.FilePath.act(FilePath.java:1163)
at com.microsoft.jenkins.kubernetes.command.DeploymentCommand.execute(DeploymentCommand.java:68)
at com.microsoft.jenkins.kubernetes.command.DeploymentCommand.execute(DeploymentCommand.java:45)
at com.microsoft.jenkins.azurecommons.command.CommandService.runCommand(CommandService.java:88)
at com.microsoft.jenkins.azurecommons.command.CommandService.execute(CommandService.java:96)
at com.microsoft.jenkins.azurecommons.command.CommandService.executeCommands(CommandService.java:75)
at com.microsoft.jenkins.azurecommons.command.BaseCommandContext.executeCommands(BaseCommandContext.java:77)
at com.microsoft.jenkins.kubernetes.KubernetesDeploy.perform(KubernetesDeploy.java:42)
at com.microsoft.jenkins.azurecommons.command.SimpleBuildStepExecution.run(SimpleBuildStepExecution.java:54)
at com.microsoft.jenkins.azurecommons.command.SimpleBuildStepExecution.run(SimpleBuildStepExecution.java:35)
at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution.lambda$start$0(SynchronousNonBlockingStepExecution.java:47)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: hudson.remoting.ProxyException: org.yaml.snakeyaml.error.YAMLException: Class not found: io.kubernetes.client.openapi.models.V1Service
at org.yaml.snakeyaml.constructor.Constructor.getClassForNode(Constructor.java:664)
at org.yaml.snakeyaml.constructor.Constructor$ConstructYamlObject.getConstructor(Constructor.java:322)
at org.yaml.snakeyaml.constructor.Constructor$ConstructYamlObject.construct(Constructor.java:331)
... 30 more
[Pipeline] }
[Pipeline] // script
[Pipeline] }
[Pipeline] // stage
[Pipeline] }
[Pipeline] // withEnv
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
ERROR: Kubernetes deployment ended with HasError
Finished: FAILURE
Resolution:
Downgrade the Both the Plugins to Below version.
2. Kubernetes Continuous Deploy 2.3.0
Hope this helps to resolve the issue.
Happy Resolution!!!!
