Remove cAdvisor json metrics from the Kubelet

[dashpole]

Enhancement Description

• One-line enhancement description (can be used as a release note):
• Kubernetes Enhancement Proposal:
• Discussion Link: Reduce the set of metrics exposed by the kubelet kubernetes#68522 (comment)
• Primary contact (assignee): dashpole
• Responsible SIGs: node
• Enhancement target (which target equals to which milestone):
  • Alpha release target (x.y): 1.21
  • Beta release target (x.y):
  • Stable release target (x.y):
• Alpha
  • KEP (k/enhancements) update PR(s):
  • Code (k/k) update PR(s):
  • Docs (k/website) update PR(s):

Please keep this description up to date. This will help the Enhancement Team to track the evolution of the enhancement efficiently.

[dashpole]

/sig node

[annajung]

Hi @dashpole

Enhancements Freeze is 2 days away, Feb 9th EOD PST

Enhancements team is aware that KEP update is currently in progress (PR #2130). Please make sure PR merges before the freeze. For PRR related questions or to boost the PR for PRR review, please reach out in slack #prod-readiness

Any enhancements that do not complete the following requirements by the freeze will require an exception.

• [IN PROGRESS] The KEP must be merged in an implementable state
• [IN PROGRESS] The KEP must have test plans
• [IN PROGRESS] The KEP must have graduation criteria
• [IN PROGRESS] The KEP must have a production readiness review

[pacoxu]

/assign
Can I send a PR for this?

[dashpole]

yes, feel free to work on this.

[arunmk]

Hi @dashpole, @pacoxu,

Since your Enhancement is scheduled to be in 1.21, please keep in mind the important upcoming dates:

• Tuesday, March 9th: Week 9 - Code Freeze
• Tuesday, March 16th: Week 10 - Docs Placeholder PR deadline
  • If this enhancement requires new docs or modification to existing docs, please follow the steps in the Open a placeholder PR doc to open a PR against k/website repo.

As a reminder, please link all of your k/k PR(s) and k/website PR(s) to this issue so we can track them.

Thanks!