Error from server (BadRequest): Upgrade request required

1 개요[ | ]

Error from server (BadRequest): Upgrade request required

Console

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root@wsl:~# kubectl get pod
NAME                     READY   STATUS       RESTARTS   AGE
hello-74fd88c57c-kbfpg   1/1     Running      0          41h

Console

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root@wsl:~# kubectl exec -it hello-74fd88c57c-kbfpg -- sh
Error from server (BadRequest): Upgrade request required

Console

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root@wsl:~# kubectl exec -it hello-74fd88c57c-kbfpg -v=9 -- sh
I1226 17:42:13.755968    3600 loader.go:395] Config loaded from file:  /root/.kube/config
I1226 17:42:13.760425    3600 round_trippers.go:466] curl -v -XGET  -H "Accept: application/json, */*" -H "User-Agent: kubectl/v1.28.2 (linux/amd64) kubernetes/89a4ea3" -H "Authorization: Bearer <masked>" 'https://localhost/api/v1/namespaces/default/pods/hello-74fd88c57c-kbfpg'
I1226 17:42:13.765360    3600 round_trippers.go:510] HTTP Trace: Dial to tcp:10.20.30.40:5060 succeed
...
I1226 17:42:14.679897    3600 helpers.go:246] server response object: [{
  "metadata": {},
  "status": "Failure",
  "message": "Upgrade request required",
  "reason": "BadRequest",
  "code": 400
}]
Error from server (BadRequest): Upgrade request required

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3 참고[ | ]