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Post Title : Kubernetes Cronjob Error not a native sidecar |
URL: https://stackoverflow.com/questions/75918110/kubernetes-cronjob-error-not-a-native-sidecar |
QUESTION: I have a kubernetes v1.25 and i cant show the details of my cronjobs anymore on all of my namespace of my kubernetes dashboard. |
FYI, it works in command kubectl line i can list my cronjobs and access. |
Dashboard version used 2.7.0On my project i modified the api version to the one recommended : |
apiVersion: 'batch/v1' |
kind: 'CronJob'When i check the logs of my kubernetes dashboard pod, i can see that every time i try to check the details of my cronjob on a namespace through graphical dashboard, an error log pop "There was an error during transformation to sidecar selector: Resource "cronjob" is not a native sidecar resource type or is not supported".Do you have any idea ? |
Thank you |
Answer(1): There is a bug where kubernetes dashboard is using API version batchV1beta1 for cronjobs which has been removed in kuberentes version 1.25.I've created a fixed version based on kuberentes dashboard version v2.7.0. I've published it on docker hub:beffe/kubernetes-dashboard:v2.7.0-fix-cj-2You can find the code changes here:https://github.com/kubernetes/dashboard/compare/master...beffe123:kubernetes-dashboard:v2.7.0-fixes |
Answer(2): There might be two reasons for this issue to occur.Likeglvsaid the primary reason will be version mismatch and the bug |
related to that particular dashboard version. Upgrade your dashboard to |
the latest supported version or follow the steps provided byglv, these |
will help you in resolving the issue.The second issue is related to the permissions. Check whether you have |
provided necessary permissions to the kubernetes dashboard service |
account or RBAC role, assign the necessary permissions if not available |
it will help you in resolving these issues.Go through the logs related to kube-dashboard pods which will provide further details that will help you in diagnosing the issue more clearly. Hope this will help you |
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