opened
naseemkullah
## What this PR does / why we need it:
This second dashboard helps end users drill down on a particular service and get more golden signals type metrics such as error rate by path and median upstream response time by path. 

## Types of changes
<!--- What types of changes does your code introduce? Put an `x` in all the boxes that apply: -->
- [ ] Bug fix (non-breaking change which fixes an issue)
- [x] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing functionality to change)


## How Has This Been Tested?
Deployed in production at Transit, where this dashboard was developed by my colleague @n8han. We have agreed that it would be best to share it with the community.

## Checklist:
<!--- Go over all the following points, and put an `x` in all the boxes that apply. -->
<!--- If you're unsure about any of these, don't hesitate to ask. We're here to help! -->
- [x] My change requires a change to the documentation.
- [x]  I have updated the documentation accordingly.
- [x] I've read the [CONTRIBUTION](https://github.com/kubernetes/ingress-nginx/blob/master/CONTRIBUTING.md) guide
- [n/a] I have added tests to cover my changes.
- [x] All new and existing tests passed.
Add request handling performance dashboard
issue
created
aledbf
/ok-to-test
comment
created
aledbf
/lgtm
/approve
comment
This message directly preceded comment from bot *codecov-io* by author *aledbf*:
/ok-to-test
[APPROVALNOTIFIER] This PR is **APPROVED**

This pull-request has been approved by: *<a href="https://github.com/kubernetes/ingress-nginx/pull/5131#issuecomment-590010436" title="Approved">aledbf</a>*, *<a href="https://github.com/kubernetes/ingress-nginx/pull/5131#" title="Author self-approved">naseemkullah</a>*

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<details >
Needs approval from an approver in each of these files:

- ~~[OWNERS](https://github.com/kubernetes/ingress-nginx/blob/master/OWNERS)~~ [aledbf]

Approvers can indicate their approval by writing `/approve` in a comment
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<!-- META={"approvers":[]} -->
This message directly preceded comment from bot *k8s-ci-robot* by author *aledbf*:
/lgtm
/approve
This message directly preceded comment from bot *codecov-io* by author *aledbf*:
/ok-to-test
This message directly preceded comment from bot *k8s-ci-robot* by author *aledbf*:
/lgtm
/approve