Adapt dashboards for Grafana 11 compatibility

[Roberdvs]

What this PR does / why we need it:

Grafana 11 turns off support for Angular plugins by default. This PR migrates affected panels to the corresponding modern versions.

I've tried to maintain the existing behavior, although there might be some minor changes in how some information is displayed.

NGINX Ingress controller

Before

After

Request Handling Performance

Before

After

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• CVE Report (Scanner found CVE and adding report)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation only

Which issue/s this PR fixes

How Has This Been Tested?

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I've read the CONTRIBUTION guide
• I have added unit and/or e2e tests to cover my changes.
• All new and existing tests passed.

[k8s-ci-robot]

Hi @Roberdvs. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[netlify]

✅ Deploy Preview for kubernetes-ingress-nginx canceled.

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[longwuyuan]

@Roberdvs thank you very much for this contribution. Much needed and hard to come by.

Honestly speaking, can you comment on how would you yourself verify such a large change for accuracy. I am going to deploy on my kind/minikube cluster and browse through all available dashboards hopefully (and ideally).

[longwuyuan]

@Roberdvs once again thank you very much for this contribution.

I tested and so glad that the big glaring compatibility error is gone. I also could not find any problem in any of the dashboard graphs. This is a very very welcome improvement. So good to see this.

/ok-to-test

[longwuyuan]

/kind bug
/triage accepted
/priority backlog
/lgtm

cc @strongjz @rikatz @tao12345666333 @cpanato @Gacko Please review/approve this

[Gacko]

/approved

[Gacko]

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Gacko, longwuyuan, Roberdvs

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[Gacko]

/cherry-pick release-1.10

[k8s-infra-cherrypick-robot]

@Gacko: new pull request created: #11414

In response to this:

/cherry-pick release-1.10

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-sigs/prow repository.