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@stlaz stlaz commented Oct 1, 2025

  • One-line PR description: Update the KEP with description how the controller works today
  • Other comments: Also removes a few obsolete goals and improves the general KEP structure

/cc @michaelasp

@k8s-ci-robot k8s-ci-robot added the cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. label Oct 1, 2025
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[APPROVALNOTIFIER] This PR is NOT APPROVED

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@k8s-ci-robot k8s-ci-robot added kind/kep Categorizes KEP tracking issues and PRs modifying the KEP directory sig/api-machinery Categorizes an issue or PR as relevant to SIG API Machinery. size/L Denotes a PR that changes 100-499 lines, ignoring generated files. labels Oct 1, 2025

### Version Skew Strategy
The feature will be enabled by the feature gate `StorageVersionMigrator` on both the _api-server_ and the _kube-controller-manager_. This gate must be set for both components during installation. Otherwise, since the kube-controller-manager is allowed to be one version lower than the api-server, it won't be able to process any StorageVersionMigration resources created by the API server.
The feature will be enabled by the feature gate `StorageVersionMigrator` on the _kube-controller-manager_.
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There is one other feature gate that I am not fully certain what it does but seems related, InformerResourceVersion. It seems like all it does is return the last synced rv of an informer but it doesn't seem documented anywhere.

stlaz added 2 commits October 2, 2025 14:19
Signed-off-by: Stanislav Láznička <[email protected]>
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cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. kind/kep Categorizes KEP tracking issues and PRs modifying the KEP directory sig/api-machinery Categorizes an issue or PR as relevant to SIG API Machinery. size/L Denotes a PR that changes 100-499 lines, ignoring generated files.
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3 participants