K8s API Machinery SIG

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Goals for this SIG:

Own issues related to Kubernetes API machinery (see below doc for details).
Establish an API-level plugin model for Kubernetes.
Debate meta-principles of the API (since this may affect the shape of the machinery and vice versa).

Explicit non-goals:

Particular APIs or API objects will not be discussed here, unless as a concrete example of something that is in-scope.
Other forms of extensibility are worthy goals but not within the scope of this SIG.

For more explanation go here (doc shared with this group, kubernetes-dev@, and kubernetes-announce@)

0 selected

Clément Nussbaumer2

Mar 11

maintenance mode for kube-apiserver ?

We discussed this issue yesterday during the bi-weekly SIG API-Machinery meeting. the recording is

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maintenance mode for kube-apiserver ?

We discussed this issue yesterday during the bi-weekly SIG API-Machinery meeting. the recording is

Mar 11

Mar 11

add opt-in compression support in apiserver

Problem: etcd performance gets slower when * The request object is very large(close to 1MB). Data

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add opt-in compression support in apiserver

Problem: etcd performance gets slower when * The request object is very large(close to 1MB). Data

Mar 11

Mar 11

Running Extension API Servers Outside of Kubernetes

Hi, It was suggested that I reach out to this group about this issue after a conversation in the #sig

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Running Extension API Servers Outside of Kubernetes

Hi, It was suggested that I reach out to this group about this issue after a conversation in the #sig

Mar 11

Haibing Zhou, David Protasowski4

Mar 4

Two Lane Queue in client-go/workqueue

If you haven't seen Knative has implemented a two-lane queue in our controller framework -

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Two Lane Queue in client-go/workqueue

If you haven't seen Knative has implemented a two-lane queue in our controller framework -

Mar 4

Feb 9

Exception for KEP-4346: client-go: Add informer metrics

Enhancement name: KEP-4346: client-go: Add informer metrics Enhancement status (alpha/beta/stable):

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Exception for KEP-4346: client-go: Add informer metrics

Enhancement name: KEP-4346: client-go: Add informer metrics Enhancement status (alpha/beta/stable):

Feb 9

Rob Scott, … Jonathan Innis8

Feb 5

AdditionalPrinterColumns Array Support

We just came up on this in Karpenter and I was still thinking that this could be a really useful

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AdditionalPrinterColumns Array Support

We just came up on this in Karpenter and I was still thinking that this could be a really useful

Feb 5

Jan 11

KEP-4358: Custom Resource Field Selectors

All, I've opened https://github.com/kubernetes/enhancements/pull/4359 which propose adding --

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KEP-4358: Custom Resource Field Selectors

All, I've opened https://github.com/kubernetes/enhancements/pull/4359 which propose adding --

Jan 11

Federico Bongiovanni, … Leila Jalali3

12/4/23

SIG API Machinery 2023 Contributor Awards, congratulations!

Congratulations Mike, @MikeSpreitzer, and Jeffrey, @Jefftree! 💯🎉 On Mon, Dec 4, 2023 at 9:24 AM '

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SIG API Machinery 2023 Contributor Awards, congratulations!

Congratulations Mike, @MikeSpreitzer, and Jeffrey, @Jefftree! 💯🎉 On Mon, Dec 4, 2023 at 9:24 AM '

12/4/23

David Oppenheimer, Federico Bongiovanni3

11/28/23

limit on total number of concurrency shares for API Priority & Fairness?

Hi David, thanks for your questions. In respect to GKE, probably this is not the right Channel to ask

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limit on total number of concurrency shares for API Priority & Fairness?

Hi David, thanks for your questions. In respect to GKE, probably this is not the right Channel to ask

11/28/23

Joe Betz (via Google Sheets)

11/14/23

Spreadsheet shared with you: "[Public] CEL for Admission Control Sprint tracking"

Joe Betz shared a spreadsheet Joe Betz (jpb...@google.com) has invited you to edit the following

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Spreadsheet shared with you: "[Public] CEL for Admission Control Sprint tracking"

Joe Betz shared a spreadsheet Joe Betz (jpb...@google.com) has invited you to edit the following

11/14/23

Alexander Zielenski, Priyanka Saggu2

11/1/23

KEP-4008: CRDValidationRatcheting Exception Request

Hi all, Following discussion in Slack, the release team is APPROVING this exception request. Your

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KEP-4008: CRDValidationRatcheting Exception Request

Hi all, Following discussion in Slack, the release team is APPROVING this exception request. Your

11/1/23

Han Kang (via Google Docs)

9/5/23

Document shared with you: "[Public] Safer Kubernetes Upgrades"

Han Kang shared a document Han Kang (han...@google.com) has invited you to edit the following

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Document shared with you: "[Public] Safer Kubernetes Upgrades"

Han Kang shared a document Han Kang (han...@google.com) has invited you to edit the following

9/5/23

Cici Huang, Joe Betz2

7/18/23

Exception Request for KEP-3488

I support this (as api-machinery TL) given that remaining PRs have been under review for an extended

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Exception Request for KEP-3488

I support this (as api-machinery TL) given that remaining PRs have been under review for an extended

7/18/23

Federico Bongiovanni

6/27/23

Zoom details for SIG Meetings have changed

Hello dear SIG, There has been some changes on the accounts that we use to host the SIG meetings.

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Zoom details for SIG Meetings have changed

Hello dear SIG, There has been some changes on the accounts that we use to host the SIG meetings.

6/27/23

Daniel Smith, … Shyam Jeedigunta16

5/11/23

Leadership changes

Thanks for your guidance through the years Daniel. It was inspiring to see your relentless fervor to

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Leadership changes

Thanks for your guidance through the years Daniel. It was inspiring to see your relentless fervor to

5/11/23

Marek Siarkowicz

4/26/23

The Implicit Kubernetes-ETCD Contract

Han and I have worked up a list of the implicit contract between Kubernetes and etcd: https://docs.

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The Implicit Kubernetes-ETCD Contract

Han and I have worked up a list of the implicit contract between Kubernetes and etcd: https://docs.

4/26/23

4/25/23

Proposal for mutating admission policies

API Machinery experts, I would like to collect feedback on KEP-3962: Mutating Admission Policies.

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Proposal for mutating admission policies

API Machinery experts, I would like to collect feedback on KEP-3962: Mutating Admission Policies.

4/25/23

Surabhi S, Daniel Smith3

4/14/23

[Question]Regarding RHOCP API support

Thank you for the reply On Thursday, April 13, 2023 at 3:02:52 AM UTC+5:30 lavalamp wrote: Our

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[Question]Regarding RHOCP API support

Thank you for the reply On Thursday, April 13, 2023 at 3:02:52 AM UTC+5:30 lavalamp wrote: Our

4/14/23

Austin Cawley-Edwards, … Han Kang9

3/20/23

[Question] Bulk Server-side Apply

Specifically, we'd have to rewrite the watch protocol (v2, anybody?) in order to support multi-

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[Question] Bulk Server-side Apply

Specifically, we'd have to rewrite the watch protocol (v2, anybody?) in order to support multi-

3/20/23

Tim Allclair, Xander Grzywinski2

3/14/23

Exception request for MatchConditions

Hi all, Following discussion in K8s Slack the release team is APPROVING this exception request. Your

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Exception request for MatchConditions

Hi all, Following discussion in K8s Slack the release team is APPROVING this exception request. Your

3/14/23

Stefan Büringer, Vince Prignano4

2/16/23

Controller-runtime: renaming default branch to main

Hi all, The default branch of kubernetes-sigs/controller-runtime has been renamed to main, please run

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Controller-runtime: renaming default branch to main

Hi all, The default branch of kubernetes-sigs/controller-runtime has been renamed to main, please run

2/16/23

Austin Cawley-Edwards, Han Kang5

1/26/23

Global Metrics Registries in k/client-go + its packages

Hey all, Getting back to this now that I have some more time after the holiday season. The PR had

unread,

Global Metrics Registries in k/client-go + its packages

Hey all, Getting back to this now that I have some more time after the holiday season. The PR had

1/26/23

1/9/23

Thinking about alpha/beta/GA in k8s

Hi everyone, I spent a little time over the holidays thinking about this, which seems germane in the

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Thinking about alpha/beta/GA in k8s

Hi everyone, I spent a little time over the holidays thinking about this, which seems germane in the

1/9/23

Antoine Pelisse, … Austin Cawley-Edwards18

12/1/22

"Gogo protobuf looking for new ownership"

I brought this up with the Prometheus community a while back — have yet to resolve it, but found some

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"Gogo protobuf looking for new ownership"

I brought this up with the Prometheus community a while back — have yet to resolve it, but found some

12/1/22

11/16/22

Help us update API Machinery teams!

Hi! We are updating api-machinery related groups in github. As the first step, we're collecting

unread,

Help us update API Machinery teams!

Hi! We are updating api-machinery related groups in github. As the first step, we're collecting

11/16/22

Tomas Nozicka, Eirik Albrigtsen2

11/7/22

Client/API generation from CRDs

There's kopium that does this to generate rust structs: https://github.com/kube-rs/kopium

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Client/API generation from CRDs

There's kopium that does this to generate rust structs: https://github.com/kube-rs/kopium

11/7/22

Joe Betz, Tim Bannister5

9/29/22

KEP: CEL for Admission Control

SG, I'll track this idea. I might do the 'Cluster<kind>" prefixing, we also have

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KEP: CEL for Admission Control

SG, I'll track this idea. I might do the 'Cluster<kind>" prefixing, we also have

9/29/22

9/28/22

subresources -> fine grained permissions? (Unblocking keps 2840 & 3286)

This has been through both SIGs now (thanks for discussion) and the feedback I got is that it'd

unread,

subresources -> fine grained permissions? (Unblocking keps 2840 & 3286)

This has been through both SIGs now (thanks for discussion) and the feedback I got is that it'd

9/28/22

9/26/22

Followup: RV vs object-wide logical clock

The comments brought up some things we missed during the SIG call: * etcd actually already keeps a

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Followup: RV vs object-wide logical clock

The comments brought up some things we missed during the SIG call: * etcd actually already keeps a

9/26/22

Shyam Jeedigunta (via Google Docs)

9/8/22

Document shared with you: "Gzip compression in k8s API"

Shyam Jeedigunta shared a document Shyam Jeedigunta (shyam12...@gmail.com) has invited you to

unread,

Document shared with you: "Gzip compression in k8s API"

Shyam Jeedigunta shared a document Shyam Jeedigunta (shyam12...@gmail.com) has invited you to

9/8/22

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