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# Architecture Special Interest Group

The Architecture SIG maintains and evolves the design principles of Kubernetes, and provides a consistent body of expertise necessary to ensure architectural consistency over time.

The [charter](charter.md) defines the scope and governance of the Architecture Special Interest Group.

## Meetings
*Joining the [mailing list](https://groups.google.com/forum/#!forum/kubernetes-sig-architecture) for the group will typically add invites for the following meetings to your calendar.*
* Enhancements Subproject Meeting: [Thursdays at 10:00 PT (Pacific Time)](https://zoom.us/j/95357819945) (biweekly). [Convert to your timezone](http://www.thetimezoneconverter.com/?t=10%3A00&tz=PT%20%28Pacific%20Time%29).
  * [Meeting notes and Agenda](https://bit.ly/k8s-enhancements-agenda).
  * [Meeting recordings](TBD).
* Production Readiness Office Hours: [Wednesdays at 12:00 PT (Pacific Time)](https://zoom.us/j/482444151) (biweekly). [Convert to your timezone](http://www.thetimezoneconverter.com/?t=12%3A00&tz=PT%20%28Pacific%20Time%29).
  * [Meeting notes and Agenda](https://docs.google.com/document/d/10QkXwiZfBL7wBKHHFslooXvGDKHA75jkkgiIXuKFryM/edit?usp=sharing).
  * [Meeting recordings](https://www.youtube.com/playlist?list=PL69nYSiGNLP2m6198LaLN6YahX7EEac5g).
* Regular SIG Meeting: [Thursdays at 11:00 PT (Pacific Time)](https://zoom.us/j/845605479) (biweekly). [Convert to your timezone](http://www.thetimezoneconverter.com/?t=11%3A00&tz=PT%20%28Pacific%20Time%29).
  * [Meeting notes and Agenda](https://docs.google.com/document/d/1BlmHq5uPyBUDlppYqAAzslVbAO8hilgjqZUTaNXUhKM/edit).
  * [Meeting recordings](https://www.youtube.com/playlist?list=PL69nYSiGNLP2m6198LaLN6YahX7EEac5g).
* code organization Office Hours: [Thursdays at 14:00 PT (Pacific Time)](https://zoom.us/j/159990793) (biweekly). [Convert to your timezone](http://www.thetimezoneconverter.com/?t=14%3A00&tz=PT%20%28Pacific%20Time%29).
  * [Meeting notes and Agenda](https://docs.google.com/document/d/1HtTI0rJEGP_MSf6eO87aCmx_tzpovPAAg7U2Zxwm8FE/edit#).
  * [Meeting recordings](https://www.youtube.com/playlist?list=PL69nYSiGNLP03VEluzh0wpSRPzgve8kI5).
* conformance office Hours: [Wednesdays at 18:00 UTC](https://zoom.us/j/427337923) (First Wednesday of the month). [Convert to your timezone](http://www.thetimezoneconverter.com/?t=18%3A00&tz=UTC).
  * [Meeting notes and Agenda](https://docs.google.com/document/d/1W31nXh9RYAb_VaYkwuPLd1hFxuRX3iU0DmaQ4lkCsX8/edit#).
  * [Meeting recordings](https://www.youtube.com/playlist?list=PL69nYSiGNLP2m6198LaLN6YahX7EEac5g).

## Leadership

### Chairs
The Chairs of the SIG run operations and processes governing the SIG.

* Derek Carr (**[@derekwaynecarr](https://github.com/derekwaynecarr)**), Red Hat
* Davanum Srinivas (**[@dims](https://github.com/dims)**), Amazon
* John Belamaric (**[@johnbelamaric](https://github.com/johnbelamaric)**), Google

## Contact
- Slack: [#sig-architecture](https://kubernetes.slack.com/messages/sig-architecture)
- [Mailing list](https://groups.google.com/forum/#!forum/kubernetes-sig-architecture)
- [Open Community Issues/PRs](https://github.com/kubernetes/community/labels/sig%2Farchitecture)
- GitHub Teams:
    - [@kubernetes/sig-architecture-api-reviews](https://github.com/orgs/kubernetes/teams/sig-architecture-api-reviews) - API Changes and Reviews
    - [@kubernetes/sig-architecture-bugs](https://github.com/orgs/kubernetes/teams/sig-architecture-bugs) - Bug Triage and Troubleshooting
    - [@kubernetes/sig-architecture-feature-requests](https://github.com/orgs/kubernetes/teams/sig-architecture-feature-requests) - Feature Requests
    - [@kubernetes/sig-architecture-misc-use-only-as-a-last-resort](https://github.com/orgs/kubernetes/teams/sig-architecture-misc-use-only-as-a-last-resort) - General Discussion
    - [@kubernetes/sig-architecture-pr-reviews](https://github.com/orgs/kubernetes/teams/sig-architecture-pr-reviews) - PR Reviews
    - [@kubernetes/sig-architecture-proposals](https://github.com/orgs/kubernetes/teams/sig-architecture-proposals) - Design Proposals
    - [@kubernetes/sig-architecture-test-failures](https://github.com/orgs/kubernetes/teams/sig-architecture-test-failures) - Test Failures and Triage
- Steering Committee Liaison: Benjamin Elder (**[@BenTheElder](https://github.com/BenTheElder)**)

## Working Groups

The following [working groups][working-group-definition] are sponsored by sig-architecture:
* [WG Device Management](/wg-device-management)
* [WG LTS](/wg-lts)
* [WG Policy](/wg-policy)
* [WG Serving](/wg-serving)
* [WG Structured Logging](/wg-structured-logging)


## Subprojects

The following [subprojects][subproject-definition] are owned by sig-architecture:
### apisnoop
Snooping on the Kubernetes OpenAPI communications
- **Owners:**
  - [kubernetes-sigs/apisnoop](https://github.com/kubernetes-sigs/apisnoop/blob/main/OWNERS)
### architecture-and-api-governance
[Described below](#architecture-and-api-governance-1)
- **Owners:**
  - [kubernetes/api](https://github.com/kubernetes/api/blob/master/OWNERS)
  - [kubernetes/design-proposals-archive](https://github.com/kubernetes/design-proposals-archive/blob/main/OWNERS)
  - [kubernetes/kubernetes/staging/src/k8s.io/api](https://github.com/kubernetes/kubernetes/blob/master/staging/src/k8s.io/api/OWNERS)
### code-organization
[Described below](#code-organization-1)
- **Owners:**
  - [kubernetes-sigs/depstat](https://github.com/kubernetes-sigs/depstat/blob/master/OWNERS)
  - [kubernetes/component-helpers](https://github.com/kubernetes/component-helpers/blob/master/OWNERS)
  - [kubernetes/kubernetes/staging](https://github.com/kubernetes/kubernetes/blob/master/staging/OWNERS)
  - [kubernetes/kubernetes/staging/src/k8s.io/component-base](https://github.com/kubernetes/kubernetes/blob/master/staging/src/k8s.io/component-base/OWNERS)
  - [kubernetes/kubernetes/staging/src/k8s.io/component-helpers](https://github.com/kubernetes/kubernetes/blob/master/staging/src/k8s.io/component-helpers/OWNERS)
  - [kubernetes/kubernetes/third_party](https://github.com/kubernetes/kubernetes/blob/master/third_party/OWNERS)
  - [kubernetes/kubernetes/vendor](https://github.com/kubernetes/kubernetes/blob/master/vendor/OWNERS)
  - [kubernetes/utils](https://github.com/kubernetes/utils/blob/master/OWNERS)
- **Contact:**
  - Slack: [#k8s-code-organization](https://kubernetes.slack.com/messages/k8s-code-organization)
### conformance-definition
[Described below](#conformance-definition-1)
- **Owners:**
  - [kubernetes-sigs/verify-conformance](https://github.com/kubernetes-sigs/verify-conformance/blob/main/OWNERS)
  - [kubernetes/kubernetes/test/conformance](https://github.com/kubernetes/kubernetes/blob/master/test/conformance/OWNERS)
  - [kubernetes/kubernetes/test/conformance/image](https://github.com/kubernetes/kubernetes/blob/master/test/conformance/image/OWNERS)
  - [kubernetes/kubernetes/test/conformance/testdata](https://github.com/kubernetes/kubernetes/blob/master/test/conformance/testdata/OWNERS)
- **Contact:**
  - Slack: [#k8s-conformance](https://kubernetes.slack.com/messages/k8s-conformance)
  - GitHub Teams:
    - [@kubernetes/cncf-conformance-wg](https://github.com/orgs/kubernetes/teams/cncf-conformance-wg)
### enhancements
[Described below](#enhancement-proposals)
- **Owners:**
  - [kubernetes/enhancements](https://github.com/kubernetes/enhancements/blob/master/OWNERS)
- **Contact:**
  - Slack: [#enhancements](https://kubernetes.slack.com/messages/enhancements)
### production-readiness
[Described below](#production-readiness-1)
- **Owners:**
  - [kubernetes/community/sig-architecture](https://github.com/kubernetes/community/blob/master/sig-architecture/OWNERS)
- **Contact:**
  - Slack: [#prod-readiness](https://kubernetes.slack.com/messages/prod-readiness)
### wg-device-management
Contains prototype code for future work driven by WG Device Management
- **Owners:**
  - [kubernetes-sigs/wg-device-management](https://github.com/kubernetes-sigs/wg-device-management/blob/main/OWNERS)
- **Contact:**
  - Slack: [#wg-device-management](https://kubernetes.slack.com/messages/wg-device-management)
### wg-serving
- **Owners:**
  - [kubernetes-sigs/wg-serving](https://github.com/kubernetes-sigs/wg-serving/blob/main/OWNERS)

[subproject-definition]: https://github.com/kubernetes/community/blob/master/governance.md#subprojects
[working-group-definition]: https://github.com/kubernetes/community/blob/master/governance.md#working-groups
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# Details about SIG-Architecture sub-projects

## Architecture and API Governance

Establishing and documenting design principles, documenting and evolving the system architecture, reviewing, curating, and documenting new extension patterns

Establishing and documenting conventions for system and user-facing APIs, define and operate the APl review process, final API implementation consistency validation, co-own top-level API directories with API machinery; maintaining, evolving, and enforcing the deprecation policy

* [Kubernetes Design and Architecture](https://git.k8s.io/design-proposals-archive/architecture/architecture.md)
* [Design principles](https://git.k8s.io/design-proposals-archive/architecture/principles.md)
* [API conventions](/contributors/devel/sig-architecture/api-conventions.md)
* [API Review process](https://github.com/kubernetes/community/blob/master/sig-architecture/api-review-process.md)
* [Deprecation policy](https://kubernetes.io/docs/reference/deprecation-policy/)

Please see the [API Reviews](https://github.com/orgs/kubernetes/projects/169) tracking board to follow the work of this sub-project. Please reach out to folks in the [OWNERS](https://git.k8s.io/design-proposals-archive/architecture/OWNERS) file if you are interested in joining this effort.

## Enhancement Proposals

Kubernetes Enhancement proposals (KEPs) are used to propose and communicate changes to sub-projects of SIG-Architecture. Following the KEP process is mandatory for all enhancements since Kubernetes 1.14 release.

* Answers to our FAQs can be found here [FAQs](https://github.com/kubernetes/enhancements/tree/master/keps#faqs)
* Full details of the KEP process can be found in [KEP-1](https://github.com/kubernetes/enhancements/blob/master/keps/sig-architecture/0000-kep-process/README.md)
* Please follow the KEP template available at [KEP Template](https://github.com/kubernetes/enhancements/blob/master/keps/NNNN-kep-template/README.md) for the enhancement proposal.
* Progress of KEPs can be tracked on our github project board at [Kubernetes Enhancements](https://github.com/kubernetes/enhancements/projects/4)
* Please review [OWNERS](https://github.com/kubernetes/enhancements/commit/ed46d6956b616e46cd62ac9a3d98449a0a313c89) to connect with enhancement chairs, approvers, and reviewers

## Conformance Definition

Reviewing, approving, and driving changes to the conformance test suite; reviewing, guiding, and creating new conformance profiles

* [Conformance Tests](https://github.com/kubernetes/kubernetes/blob/master/test/conformance/testdata/conformance.yaml)
* [Test Guidelines](/contributors/devel/sig-architecture/conformance-tests.md)

Please see the [Conformance Test Review](https://github.com/kubernetes-sigs/architecture-tracking/projects/1) tracking board to follow the work for this sub-project. Please reach out to folks in the [OWNERS](https://github.com/kubernetes/kubernetes/blob/master/test/conformance/testdata/OWNERS) file if you are interested in joining this effort. There is a lot of overlap with the [Kubernetes Software Conformance Working Group](https://github.com/cncf/k8s-conformance/blob/master/README-WG.md) with this sub project as well. The github group [cncf-conformance-wg](https://github.com/orgs/kubernetes/teams/cncf-conformance-wg) enumerates the folks on this working group. Look for the `area/conformance` label in the kubernetes repositories to mark [issues](https://github.com/kubernetes/kubernetes/issues?q=is%3Aissue+is%3Aopen+label%3Aarea%2Fconformance) and [PRs](https://github.com/kubernetes/kubernetes/pulls?q=is%3Apr+is%3Aopen+label%3Aarea%2Fconformance).

## Code Organization

Overall code organization, including github repositories and branching methodology, top-level and pkg OWNERS of kubernetes/kubernetes, vendoring

Please see the [Code Organization](https://github.com/orgs/kubernetes/projects/27) tracking board to follow the work of this sub-project. Please reach out to folks in the [OWNERS](https://github.com/kubernetes/kubernetes/blob/master/vendor/OWNERS) file if you are interested in joining this effort. Look for the `area/code-organization` label in the kubernetes repositories to mark [issues](https://github.com/kubernetes/kubernetes/issues?q=is%3Aissue+is%3Aopen+label%3Aarea%2Fcode-organization) and [PRs](https://github.com/kubernetes/kubernetes/pulls?q=is%3Apr+is%3Aopen+label%3Aarea%2Fcode-organization). We also use `area/dependency` label as well [issues](https://github.com/kubernetes/kubernetes/issues?q=is%3Aissue+is%3Aopen+label%3Aarea%2Fdependency) and [PRs](https://github.com/kubernetes/kubernetes/pulls?q=is%3Apr+is%3Aopen+label%3Aarea%2Fdependency).

## Production Readiness

Defining and documenting the processes for ensuring production readiness of new and
promoted features, as well as producing tooling to enforce those processes.

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