Update sig-multicluster 2025 annual report #8807
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| - Governance and leadership changes | ||
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| * [multicluster-runtime](https://github.com/multicluster-runtime/multicluster-runtime) accepted into the sig | ||
| * Multicluster observability user research ([proposal doc](https://docs.google.com/document/d/1uCyHpI5zV1ME9qBtGjLkrIhpl3iXe-zQsn0SSbBiAE4)) | ||
| * "Hub"/"Management" Cluster definition discussion and position statement: https://github.com/kubernetes/community/pull/8210 | ||
| * Demos: [helium](https://github.com/raffaelespazzoli/helium), [KubeStellar](https://docs.google.com/presentation/d/1PYXL7FIim6b-Hrm97utpz5zjnuwgveNWRiny47IXxLg), [kube-bind](https://kube-bind.io/) ([slides](https://docs.google.com/presentation/d/1a5QqiaJNpu0UgyL50T0kLGg9-gaeF-1yqW3FZThlhnU), [github](https://github.com/kube-bind/kube-bind)) | ||
| * MCS versions 0.2.0 and 0.3.0 | ||
| * [IP families](https://github.com/kubernetes/enhancements/pull/5264) and [ports conflict rules](https://github.com/kubernetes/enhancements/pull/4887) for MCS and updates to related conformance tests | ||
| * Traffic distribution/internal traffic policies field lift to MCS ([KEP update](https://github.com/kubernetes/enhancements/pull/5588), [PR](https://github.com/kubernetes-sigs/mcs-api/pull/131)) and ServiceExport conditions streamlining against Gateway API ([KEP update](https://github.com/kubernetes/enhancements/pull/5438), [PR](https://github.com/kubernetes-sigs/mcs-api/pull/112)) | ||
| * MCS API spec/status/root discussion and eventual no-op: [doc](https://docs.google.com/document/d/112osT8lPCg5hbbnHuekn7KVNvy2LgLPV1ICalAmb8uE), [slides](https://docs.google.com/presentation/d/12A3i8OdJdpsHu4b_IenWgldsgYSnUGkfzLJVl93b9tY), [github discussion thread](https://github.com/kubernetes-sigs/mcs-api/issues/106) | ||
| * Add ServiceImport conditions ([KEP update](https://github.com/kubernetes/enhancements/pull/5439), [PR](https://github.com/kubernetes/enhancements/pull/5439)) and leverage them for asymmetrical traffic conflicts ([KEP update](https://github.com/kubernetes/enhancements/pull/5706), [PR](https://github.com/kubernetes-sigs/mcs-api/pull/132)) | ||
| * Discussion on [MCS cluster selection and traffic distribution](https://docs.google.com/document/d/14Ts1PhkSd-ouiGLhMA6uZN6RfoObqKvqpxnf7qLko5Y) | ||
| * Additional CRD versioning data on MCS ([PR](https://github.com/kubernetes-sigs/mcs-api/pull/116)) | ||
| * Forward looking discussions on policies and plans for the MCI-API conformance report program for GA | ||
| * Cluster Inventory API | ||
| * ClusterProfile credentials via plugin ([initial slide deck](https://docs.google.com/presentation/d/1v5-J-kFJ3TSpKqSraHcYkCz2NG7cNnYpq0ISF85wNMU), [KEP update](https://github.com/kubernetes/enhancements/pull/5338), [PR](https://github.com/kubernetes-sigs/cluster-inventory-api/pull/17)) | ||
| * PlacementDecision API added ([community doc](https://docs.google.com/document/d/1seK6W_TgSDinogXqEm8bOgFCuKqJ9_qkZdodfkSheUY), [informational slide deck](https://drive.google.com/file/d/1b7OQotko2w6PA_U-C7KtfaAmqeuqjMu0), [KEP](https://github.com/kubernetes/enhancements/pull/5314), [PR](https://github.com/kubernetes-sigs/cluster-inventory-api/pull/33)) and general discussions about multicluster scheduling ([slides](https://docs.google.com/presentation/d/1PYXL7FIim6b-Hrm97utpz5zjnuwgveNWRiny47IXxLg)) | ||
| * About API | ||
| * About API v1beta1 CRD released: https://github.com/kubernetes-sigs/about-api/pull/27 | ||
| * Discussion on suggested well-known cluster properties and property ladder discussion ([doc](https://docs.google.com/document/d/1M6vD9ALiLLIGT3dHus-kfAUhD6wX9BPUjPB_g3XljMc)) | ||
| * Discussed intersections with the Gateway Inference group e.g. [Multi-Cluster Inference Gateways proposal](https://docs.google.com/document/d/1QGvG9ToaJ72vlCBdJe--hmrmLtgOV_ptJi9D58QMD2w) and [CompositeBackend proposal](https://docs.google.com/document/d/1xXM6vDDmmmwK6Oh11CdCyKKN9wdoOalnpkjsO2PdFd4) | ||
| * Ops | ||
| * Added APAC meetings | ||
| * Reviewer increase | ||
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| 2. Are there any areas and/or subprojects that your group needs help with (e.g. fewer than 2 active OWNERS)? | ||
| While we did increase the number of reviewers this year, in practice we have around the same ~6 people across the same number of projects (with very uneven distribution in terms of how much they review across all projects vs their main project) and we don't have a pipeline. Last year we tried a volunteer "council" of reviewers who would commit to 4 hours a week of reviews and also had the power to represent consensus if needed to unblock PRs in case of lack of approver/lead bandwidth, but we have not seen this specific power come into use nor the overall velocity of PR review increasing. | ||
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| 3. Did you have community-wide updates in 2025 (e.g. KubeCon talks)? | ||
| * KubeCon EU: | ||
| * [How the SIG-Multicluster API Specifications Are Used for Real World Multicluster Management](https://kccnceu2025.sched.com/event/1txHL/how-the-sig-multicluster-api-specifications-are-used-for-real-world-multicluster-management-august-simonelli-red-hat-ryan-zhang-microsoft) | ||
| * [SIG-Multicluster Intro and Deep Dive](https://kccnceu2025.sched.com/event/1td0P/sig-multicluster-intro-and-deep-dive-jeremy-olmsted-thompson-laura-lorenz-google-stephen-kitt-red-hat-ryan-zhang-microsoft) | ||
| * KubeCon NA: | ||
| * [SIG-Multicluster Intro and Deep Dive](https://kccncna2025.sched.com/event/27Nlj/sig-multicluster-intro-and-deep-dive-stephen-kitt-red-hat-pavanipriya-sajja-independent-jeremy-olmsted-thompson-google) | ||
| * [Finally, a Cluster Inventory I Can USE!](https://kccncna2025.sched.com/event/27FfN/finally-a-cluster-inventory-i-can-use-corentin-debains-google-ryan-zhang-microsoft) | ||
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| 4. KEP work in 2025 (v1.33, v1.34, v1.35): | ||
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| MCS | ||
| * [KEP 1645: slightly relax the managed by requirements on EndpointSlices enhancements#4930](https://github.com/kubernetes/enhancements/pull/4930) | ||
| * [KEP-1645: define dual stack policies and fields enhancements#5264](https://github.com/kubernetes/enhancements/pull/5264) | ||
| * [KEP 1645: updates ServiceExport conditions enhancements#5437](https://github.com/kubernetes/enhancements/pull/5437) | ||
| * [KEP 1645: fix ServiceExport conditions enhancements#5438](https://github.com/kubernetes/enhancements/pull/5438) | ||
| * [KEP 1645: add ServiceImport conditions enhancements#5439](https://github.com/kubernetes/enhancements/pull/5439) | ||
| * [KEP 1645: updates ServiceExport conditions enhancements#5437](https://github.com/kubernetes/enhancements/pull/5437) | ||
| * [KEP 1645: fix ServiceExport conditions enhancements#5438](https://github.com/kubernetes/enhancements/pull/5438) | ||
| * [KEP 1645: add ServiceImport conditions enhancements#5439](https://github.com/kubernetes/enhancements/pull/5439) | ||
| * [KEP 1645: clarify the impact of conflict condition enhancements#5463](https://github.com/kubernetes/enhancements/pull/5463) | ||
| * [KEP 1645: add more conflict condition on asymmetrical traffic enhancements#5706](https://github.com/kubernetes/enhancements/pull/5706) | ||
| * [KEP 1645: add traffic distribution and internal traffic policies fields enhancements#5588](https://github.com/kubernetes/enhancements/pull/5588) | ||
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| ClusterProfile | ||
| * [KEP 5339 - ClusterProfile Credentials external providers enhancements#5338](https://github.com/kubernetes/enhancements/pull/5338) | ||
| * [Update KEP-4322 to account for ClusterProfile CR being namespaced enhancements#5457](https://github.com/kubernetes/enhancements/pull/5457) | ||
| * [KEP-5339: fix typo in ClusterProfile credentialProviders example enhancements#5518](https://github.com/kubernetes/enhancements/pull/5518) | ||
| * [KEP-5339: add additional cluster-specific auth info field to the cluster profile object enhancements#5559](https://github.com/kubernetes/enhancements/pull/5559) | ||
| * [KEP-5339: define extensions-based per-cluster plugin configuration enhancements#5643](https://github.com/kubernetes/enhancements/pull/5643) | ||
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| Placement API | ||
| * [KEP-5313: Placement Decision API for multicluster scheduling enhancements#5314](https://github.com/kubernetes/enhancements/pull/5314) | ||
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| ## [Subprojects](https://git.k8s.io/community/sig-multicluster#subprojects) | ||
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| **New in 2025:** | ||
| - multicluster-runtime | ||
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| **Continuing:** | ||
| - about-api | ||
| - cluster-inventory-api | ||
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| **New in 2025:** | ||
| - AI Gateway | ||
| - see [doc](https://docs.google.com/document/d/10WTdHYW5x2rw6BTgDzW7X-5QNesAh205MuoaUe5-IQg), [PR](https://github.com/kubernetes/community/pull/8521) | ||
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| ## Operational | ||
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| Operational tasks in [sig-governance.md]: | ||
| - [x] [README.md] reviewed for accuracy and updated if needed | ||
| - [x] [CONTRIBUTING.md] reviewed for accuracy and updated if needed | ||
| - [x] Other contributing docs (e.g. in devel dir or contributor guide) reviewed for accuracy and updated if needed | ||
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Contributor
Author
There was a problem hiding this comment. Reviewed and updated in kubernetes-sigs/sig-multicluster-site#47 |
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| - [x] Subprojects list and linked OWNERS files in [sigs.yaml] reviewed for accuracy and updated if needed | ||
| - [x] SIG leaders (chairs, tech leads, and subproject leads) in [sigs.yaml] are accurate and active, and updated if needed | ||
| - [x] Meeting notes and recordings for 2025 are linked from [README.md] and updated/uploaded if needed | ||
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| [CONTRIBUTING.md]: https://git.k8s.io/community/sig-multicluster/CONTRIBUTING.md | ||
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Updated in #8841