Kubelet Resource Metrics Endpoint

[dashpole]

Enhancement Description

• One-line enhancement description: Introduce a new kubelet endpoint for serving metrics about first-class resources.

• Primary contact: @dashpole

• Responsible SIGs: Sig-Node, Sig-Instrumentation

• KEP: https://github.com/kubernetes/enhancements/tree/master/keps/sig-node/727-resource-metrics-endpoint

• Link to e2e and/or unit tests: Coming soon

• Reviewer(s) - (for LGTM) recommend having 2+ reviewers (at least one from code-area OWNERS file) agreed to review. Reviewers from multiple companies preferred: @DirectXMan12

• Approver: @dchen1107 @brancz

• Enhancement target (which target equals to which milestone):

  • Alpha release target 1.14
  • Beta release target 1.27
  • Stable release target 1.29

• v1alpha1 endpoint

  • KEP (k/enhancements) update PR(s): [KEP] Kubelet Resource Metrics Endpoint #726
  • Code (k/k) update PR(s): Add kubelet resource metrics v1alpha1 endpoint kubernetes#73946
  • Docs (k/website) update(s): Documentation for Kubelet Resource Metrics Endpoint website#12934

• metric-server

  • metrics server v0.6 Implement using /metrics/resource Kubelet endpoint kubernetes-sigs/metrics-server#777 ; Bump metrics-server to v0.6.3 kubernetes#117120 bump v0.6.3 (v1.28)

• Stable

  • KEP (k/enhancements) update PR(s):
    • Update KEP for Kubelet Resource Metrics endpoint GA release #4037
  • Code (k/k) update PR(s): Graduate kubelet resource metrics to GA kubernetes#116897
  • Docs (k/website) update(s):

[dashpole]

/sig node

[claurence]

@dashpole I've added this enhancement to the 1.14 tracking doc since it looks like y'all are targeting alpha here.

Are there any open PRs for this that should be tracked as well for it to be added to 1.14 as alpha?

[dashpole]

@claurence I am going to wait until the KEP is approved to open PRs. Ill reference this feature issue from the PRs if/when that happens

[WanLinghao]

/cc

[claurence]

@dashpole since the KEP for this issue isn't merged yet we will be removing it from the 1.14 milestone. To have it added back in please file an exception - information on the exception process can be found here: https://github.com/kubernetes/sig-release/blob/master/releases/EXCEPTIONS.md