Update grafana config

[MIBc]

Fixes #6564

Proposed Changes

• Add tag for knative dashboard.

[knative-prow-robot]

Hi @MIBc. Thanks for your PR.

I'm waiting for a knative 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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[MIBc]

/assign @yanweiguo

[zouyee]

/ok-to-test
/lgtm

[yanweiguo]

Thanks for this PR @MIBc. Could you provide a screen shot of the dashboards after this PR? Thanks.

[MIBc]

[yanweiguo]

/lgtm
/approve

[knative-prow-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: MIBc, yanweiguo

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Needs approval from an approver in each of these files:

• config/monitoring/OWNERS [yanweiguo]

Approvers can indicate their approval by writing /approve in a comment
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[knative-test-reporter-robot]

The following jobs failed:

Test name	Triggers	Retries
pull-knative-serving-unit-tests		0/3

Failed non-flaky tests preventing automatic retry of pull-knative-serving-unit-tests:

pkg/reconciler/nscert.Failure

[MIBc]

/retest

[JRBANCEL]

Thanks @MIBc for this! 🚀
A piece of feedback: for next time please try to use a more descriptive name of the PR/Commit, like Add Knative tags to Grafana dashboards.
It helps when digging through the history.