Output of kubectl describe pod formats incorrectly

[barrettj12]

What happened:
Output of kubectl describe pod formats incorrectly.

$ microk8s kubectl describe pod -n controller-c2 controller-0
...
Events:
  Type     Reason            Age   From               Message
  ----     ------            ----  ----               -------
  Warning  FailedScheduling  79s   default-scheduler  running PreFilter plugin "VolumeBinding": %!!(MISSING)w(<nil>)
$

Probably a bug in the formatting code.

What you expected to happen:
Display the output more nicely, e.g.

running PreFilter plugin "VolumeBinding": nil

How to reproduce it (as minimally and precisely as possible):

TBD

Anything else we need to know?:

Environment:

• Kubernetes client and server versions (use kubectl version):

  $ microk8s kubectl version
  WARNING: This version information is deprecated and will be replaced with the output from kubectl version --short.  
  Use --output=yaml|json to get the full version.
  Client Version: version.Info{Major:"1", Minor:"24+", GitVersion:"v1.24.4-2+2f38f78fa07274", 
  GitCommit:"2f38f78fa07274a290eb3b5802e82b1de6f70fa4", GitTreeState:"clean", BuildDate:"2022-08-22T10:27:57Z", GoVersion:"go1.18.5", Compiler:"gc", Platform:"linux/amd64"}
  Kustomize Version: v4.5.4
  Server Version: version.Info{Major:"1", Minor:"24+", GitVersion:"v1.24.4-2+2f38f78fa07274", 
  GitCommit:"2f38f78fa07274a290eb3b5802e82b1de6f70fa4", GitTreeState:"clean", BuildDate:"2022-08-22T10:25:23Z", GoVersion:"go1.18.5", Compiler:"gc", Platform:"linux/amd64"}

• Cloud provider or hardware configuration: running microk8s on local machine
• OS (e.g: cat /etc/os-release):

  $ cat /etc/os-release
  NAME="Ubuntu"
  VERSION="20.04.4 LTS (Focal Fossa)"
  ID=ubuntu
  ID_LIKE=debian
  PRETTY_NAME="Ubuntu 20.04.4 LTS"
  VERSION_ID="20.04"
  HOME_URL="https://www.ubuntu.com/"
  SUPPORT_URL="https://help.ubuntu.com/"
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
  PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
  VERSION_CODENAME=focal
  UBUNTU_CODENAME=focal

[k8s-ci-robot]

@barrettj12: This issue is currently awaiting triage.

SIG CLI takes a lead on issue triage for this repo, but any Kubernetes member can accept issues by applying the triage/accepted label.

The triage/accepted label can be added by org members by writing /triage accepted in a comment.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[ardaguclu]

kubectl describe lists events gotten from apiserver and it seems that message has a problem.

I think that is because of this line

kubernetes/pkg/scheduler/framework/runtime/framework.go

Line 608 in 3ac752e

return nil, framework.AsStatus(fmt.Errorf("running PreFilter plugin %q: %w", pl.Name(), s.AsError())).WithFailedPlugin(pl.Name())

does not handle empty cases.

/transfer kubernetes
/sig scheduler

[k8s-ci-robot]

@ardaguclu: The label(s) sig/scheduler cannot be applied, because the repository doesn't have them.

In response to this:

kubectl describe lists events gotten from apiserver and it seems that message has a problem.

I think that is because of this line

kubernetes/pkg/scheduler/framework/runtime/framework.go

Line 608 in 3ac752e

return nil, framework.AsStatus(fmt.Errorf("running PreFilter plugin %q: %w", pl.Name(), s.AsError())).WithFailedPlugin(pl.Name())

does not handle empty cases.

/transfer kubernetes
/sig scheduler

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[ardaguclu]

/sig scheduler

[k8s-ci-robot]

@ardaguclu: The label(s) sig/scheduler cannot be applied, because the repository doesn't have them.

In response to this:

/sig scheduler

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[ardaguclu]

/sig scheduling

[HirazawaUi]

I think I fixed the bug, waiting for the reviewer to review the PR, hope it helps you

[sanposhiho]

I believe this bug has been already fixed in #112029.

[HirazawaUi]

I believe this bug has been already fixed in #112029.

Thanks for the reminder, I have closed my PR

[kerthcet]

Since it's not a critical bug just some outputs, no need to cherry pick, close then.
/close

[k8s-ci-robot]

@kerthcet: Closing this issue.

In response to this:

Since it's not a critical bug just some outputs, no need to cherry pick, close then.
/close

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.