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SIG Autoscaling 2025 Annual Report #8853
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| Original file line number | Diff line number | Diff line change |
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| 1. What work did the SIG do this year that should be highlighted? | ||
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| - 3 minor releases of VPA: [1.3.0](https://github.com/kubernetes/autoscaler/releases/tag/vertical-pod-autoscaler-1.3.0), [1.4.0](https://github.com/kubernetes/autoscaler/releases/tag/vertical-pod-autoscaler-1.4.0), [1.5.0](https://github.com/kubernetes/autoscaler/releases/tag/vertical-pod-autoscaler-1.5.0) | ||
| - In Place Pod Resizing promoted to Beta (`InPlaceOrRecreate` feature) (@adrianmoisey) | ||
| - VPA Enhancement Proposals | ||
| - AEP-7862: [AEP-7862: CPU Startup Boost](https://github.com/kubernetes/autoscaler/tree/master/vertical-pod-autoscaler/enhancements/7862-cpu-startup-boost) (@kamarabbas99) | ||
| - AEP-8026 [AEP-8026: Allow per-VPA component configuration parameters](https://github.com/kubernetes/autoscaler/tree/master/vertical-pod-autoscaler/enhancements/8026-per-vpa-component-configuration) (@omerap12) | ||
| - AEP-8818: [InPlace Update Mode work begun](https://github.com/kubernetes/autoscaler/tree/master/vertical-pod-autoscaler/enhancements/8818-in-place-only) (@omerap12) | ||
| - 2 minor releases of Cluster Autoscaler: [1.33.0](https://github.com/kubernetes/autoscaler/releases/tag/cluster-autoscaler-1.33.0), [1.34.0](https://github.com/kubernetes/autoscaler/releases/tag/cluster-autoscaler-1.33.0) | ||
| - Cluster Autoscaler Enhancement Proposals | ||
| - [Granular Resource Limits (CapacityQuota API)](https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/proposals/granular-resource-limits.md) @norbertcyran | ||
| - Spare Capacity (CapacityBuffer API)[https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/proposals/buffers.md] @jbtk | ||
| - 7 minor release of Karpenter: [1.2.0](https://github.com/kubernetes-sigs/karpenter/releases/tag/v1.2.0), [1.3.0](https://github.com/kubernetes-sigs/karpenter/releases/tag/v1.3.0), [1.4.0](https://github.com/kubernetes-sigs/karpenter/releases/tag/v1.4.0), [1.5.0](https://github.com/kubernetes-sigs/karpenter/releases/tag/v1.5.0), [1.6.0](https://github.com/kubernetes-sigs/karpenter/releases/tag/v1.6.0), [1.7.0](https://github.com/kubernetes-sigs/karpenter/releases/tag/v1.7.0), [1.8.0](https://github.com/kubernetes-sigs/karpenter/releases/tag/v1.8.0) | ||
| - Karpenter RFCs | ||
| - [Static Capacity](https://github.com/kubernetes-sigs/karpenter/blob/main/designs/static-capacity.md) @sumukha-radhakrishna | ||
| - [NodeRegistrationHealthy Status Condition](https://github.com/kubernetes-sigs/karpenter/pull/1910) @jigisha620 | ||
| - [Node Overlay](https://github.com/kubernetes-sigs/karpenter/blob/main/designs/node-overlay.md) @engedaam | ||
| - [Karpenter Integration Test Migration](https://github.com/kubernetes-sigs/karpenter/blob/main/designs/karpenter-integration-testing.md) @engedaam | ||
| - [DRA KWOK Driver](https://github.com/kubernetes-sigs/karpenter/blob/main/designs/karpenter-dra-kwok-driver.md) @alimaazamat | ||
| - [GTE and LTE Operators for Requirements](https://github.com/kubernetes-sigs/karpenter/blob/main/designs/gte-lte-operators.md) @ellistarn | ||
| - Healthy Ecosystem | ||
| - Karpenter provider maturity | ||
| - [IBM Cloud Provider](https://github.com/kubernetes-sigs/karpenter-provider-ibm-cloud) | ||
| - [Cluster API Provider](https://github.com/kubernetes-sigs/karpenter-provider-cluster-api) | ||
| - Cluster Autoscaler provider growth | ||
| - New [CoreWeave Provider](https://github.com/kubernetes/autoscaler/tree/master/cluster-autoscaler/cloudprovider/coreweave) | ||
| - New [Utho Provider](https://github.com/kubernetes/autoscaler/tree/master/cluster-autoscaler/cloudprovider/utho) | ||
| - Significant Leadership Updates | ||
| - Maciek Pytel steps down as Chair (Thank you @maciekpytel !) | ||
| - Kuba Tużnik (@towca) promoted to Chair | ||
| - Jack Francis (@jackfrancis) promoted to Lead | ||
| - Ray Wainman served as Lead, now Emeritus (Thank you @raywainman !) | ||
| - Adrian Moisey @adrianmoisey promoted to Lead | ||
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| <!-- | ||
| Some example items that might be worth highlighting: | ||
| - Major KEP advancement | ||
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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)? | ||
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| - Omer Aplatony has stepped up considerably to reinforce HPA (thank you @omerap12), in addition to his work maintaining VPA. At least one more regular maintainer is still needed. We are tracking progress here: | ||
| - https://github.com/kubernetes/kubernetes/issues/128948 | ||
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| 3. Did you have community-wide updates in 2025 (e.g. KubeCon talks)? | ||
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| - [Kubecon NA 2025 SIG Update](https://www.youtube.com/watch?v=aflZ5ccrgnw) | ||
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| <!-- | ||
| Examples include links to email, slides, or recordings. | ||
| --> | ||
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| Please raise an issue in kubernetes/community, if the KEP metadata is correct but the generated list is incorrect. | ||
| --> | ||
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| <!-- | ||
| - Alpha | ||
| - [5030 - Integrate CSI Volume attach limits with cluster autoscaler](https://github.com/kubernetes/enhancements/tree/master/keps/sig-autoscaling/5030-attach-limit-autoscaler) - v1.35 | ||
| - [5325 - Improve pod selection accuracy across workload types](https://github.com/kubernetes/enhancements/tree/master/keps/sig-autoscaling/5325-hpa-pod-selection-accuracy) - v1.35 | ||
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| - Beta | ||
| - [4951 - Configurable tolerance for HPA](https://github.com/kubernetes/enhancements/tree/master/keps/sig-autoscaling/4951-configurable-hpa-tolerance) - v1.35 | ||
| --> | ||
| - Alpha | ||
| - [5030 - Integrate CSI Volume attach limits with cluster autoscaler](https://github.com/kubernetes/enhancements/tree/master/keps/sig-autoscaling/5030-attach-limit-autoscaler) - v1.35 | ||
| - Beta | ||
| - [4951 - Configurable tolerance for HPA](https://github.com/kubernetes/enhancements/tree/master/keps/sig-autoscaling/4951-configurable-hpa-tolerance) - v1.35 | ||
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| ## [Subprojects](https://git.k8s.io/community/sig-autoscaling#subprojects) | ||
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| **Continuing:** | ||
| - addon-resizer | ||
| - cluster-autoscaler | ||
| - horizontal-pod-autoscaler | ||
| - karpenter | ||
| - horizontal-pod-autoscaler | ||
| - vertical-pod-autoscaler | ||
| - addon-resizer | ||
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Member
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Why the order change here? (it was alphabetical)
Contributor
Author
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. A very specific form of OCD where I didn't want to see the most stale project in the SIG listed first. |
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| ## [Working groups](https://git.k8s.io/community/sig-autoscaling#working-groups) | ||
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| **Continuing:** | ||
| - Batch | ||
| - Device Management | ||
| - Serving | ||
| - Serving (Retiring as of Feb 2026) | ||
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| ## Operational | ||
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| Operational tasks in [sig-governance.md]: | ||
| - [ ] [README.md] reviewed for accuracy and updated if needed | ||
| - [ ] [CONTRIBUTING.md] reviewed for accuracy and updated if needed | ||
| - [ ] Other contributing docs (e.g. in devel dir or contributor guide) reviewed for accuracy and updated if needed | ||
| - [ ] Subprojects list and linked OWNERS files in [sigs.yaml] reviewed for accuracy and updated if needed | ||
| - [ ] SIG leaders (chairs, tech leads, and subproject leads) in [sigs.yaml] are accurate and active, and updated if needed | ||
| - [ ] Meeting notes and recordings for 2025 are linked from [README.md] and updated/uploaded if needed | ||
| - [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 | ||
| - [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-autoscaling/CONTRIBUTING.md | ||
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We technically did the RFC for reserved capacity in 2024, but the implementation landed in 2025, idk if its standard to call implementations out: kubernetes-sigs/karpenter#1760