API gzip compression support

[ghost]

Enhancement Description

• One-line enhancement description (can be used as a release note): Graduate API gzip compression support to GA
• Kubernetes Enhancement Proposal: https://github.com/kubernetes/enhancements/tree/master/keps/sig-api-machinery/2338-graduate-API-gzip-compression-support-to-GA
  Kubernetes sometimes returns extremely large responses to clients outside of its local network, resulting in long delays for components that integrate with the cluster in the list/watch controller pattern. Kubernetes should properly support transparent gzip response encoding, while ensuring that the performance of the cluster does not regress for small requests.
• Discussion Link:
• Primary contact (assignee): @smarterclayton
• Responsible SIGs: sig-api-machinery
• Enhancement target (which target equals to which milestone):
  • Alpha release target (x.y): 1.8
  • Beta release target (x.y): 1.16
  • Stable release target (x.y): 1.33?
• Alpha
  • KEP (k/enhancements) update PR(s):
  • Code (k/k) update PR(s): Add feature gating to REST Compression kubernetes#46966
  • Docs (k/website) update PR(s):
• Beta
  • KEP (k/enhancements) update PR(s): Bring gzip compression for API server to GA #1115
  • Code (k/k) update PR(s): Replace HTTP compression with a more scoped impl, only use on responses > 128KB kubernetes#77449
  • Docs (k/website) update PR(s): Document API response compression website#30639
• GA
  • KEP (k/enhancements) update PR(s): KEP-2338 Graduate API gzip compression to GA #5070
  • Code (k/k) update PR(s):
    • v1.26 Reduce default gzip compression level from 4 to 1 in apiserver kubernetes#112299
    • v1.25 Add flag to disable compression for local traffic kubernetes#111507
    • v1.26 Add a "DisableCompression" option to kubeconfig kubernetes#112309
    • v1.26 Add --disable-compression flag to kubectl kubernetes#112580
    • v1.33 promote APIResponseCompression to GA kubernetes#129748
  • Docs (k/website) update PR(s):

Implementation History

• 1.7 Kubernetes added alpha implementation behind disabled flag
• Updated proposal with more scoped implementation for Beta in 1.16 that addresses prior issues

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

[ghost]

#2331 created for migrating the old keps into new template.

[lasomethingsomething]

/sig api-machinery

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/lifecycle stale

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/lifecycle rotten

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/close

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@k8s-triage-robot: Closing this issue.

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/close

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[sftim]

I'll mention kubernetes/website#30639 - a request to document this feature.

[sftim]

/reopen
I think we should either document it or deprecate it.

[k8s-ci-robot]

@sftim: Reopened this issue.

In response to this:

/reopen
I think we should either document it or deprecate it.

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[k8s-triage-robot]

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/close

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue.

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/close

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[sftim]

I suggest we retitle the KEP to “API response compression”. The intent to reach GA is implied, I think.

[kikisdeliveryservice]

Re-opening while the status of this gets sorted out.

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/lifecycle stale

[k8s-triage-robot]

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/lifecycle rotten

[sftim]

/remove-lifecycle rotten

I still think we should either document it or deprecate it.

[sftim]

/stage beta
according to https://kubernetes.io/docs/reference/command-line-tools-reference/feature-gates/

[k8s-triage-robot]

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/lifecycle stale

[liangyuanpeng]

/remove-lifecycle stale

[k8s-triage-robot]

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/lifecycle stale

[k8s-triage-robot]

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/lifecycle rotten

[wojtek-t]

/remove-lifecycle rotten

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/lifecycle stale

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/lifecycle rotten

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/close not-planned

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue, marking it as "Not Planned".

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The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues according to the following rules:

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/close not-planned

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[pacoxu]

/reopen
/remove-lifecycle rotten

APIResponseCompression was promoted to v1.16 and no update after that.

@smarterclayton @ilackarms Do we want to promote it to GA?

[k8s-ci-robot]

@pacoxu: Reopened this issue.

In response to this:

/reopen
/remove-lifecycle rotten

APIResponseCompression was promoted to v1.16 and no update after that.

@smarterclayton @ilackarms Do we want to promote it to GA?

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.

[pacoxu]

There is a revist issue by @shyamjvs in kubernetes/kubernetes#112296 (https://docs.google.com/document/d/1rMlYKOVyujboAEG2epxSYdx7eyevC7dypkD_kUlBxn4/edit?tab=t.0) and some follow up PRs:

• v1.26 Reduce default gzip compression level from 4 to 1 in apiserver kubernetes#112299
• v1.25 Add flag to disable compression for local traffic kubernetes#111507
• v1.26 Add a "DisableCompression" option to kubeconfig kubernetes#112309
• v1.26 Add --disable-compression flag to kubectl kubernetes#112580

[jpbetz]

Is this targeting GA in 1.33? Should I opt this enhancement into v1.33 for sig-api-machinery?

Thanks!