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Merge pull request #107022 from ingvagabund/changelog-mention-ks-deprecations-master

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Changelog: mention kube-scheduler bits deprecation
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Kubernetes Prow Robot 2021-12-14 06:47:46 -08:00 committed by GitHub
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CHANGELOG/CHANGELOG-1.23.md
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@ -314,7 +314,13 @@ After migration, Kubernetes users may continue to rely on all the functionality
- `--port`
- `--address`
The insecure port flags `--port` may only be set to 0 now.
- Kube-scheduler: the `--port` and `--address` flags have no effect and would be removed in v1.24.
The insecure port flags `--port` may only be set to 0 now.
Also `metricsBindAddress` and `healthzBindAddress` fields from `kubescheduler.config.k8s.io/v1beta1` are no-op and expected to be empty. Removed in `kubescheduler.config.k8s.io/v1beta2` completely. ([#96345](https://github.com/kubernetes/kubernetes/pull/96345), [@ingvagabund](https://github.com/ingvagabund))
In addition, please be careful that:
- kube-scheduler MUST start with `--authorization-kubeconfig` and `--authentication-kubeconfig` correctly set to get authentication/authorization working.
- liveness/readiness probes to kube-scheduler MUST use HTTPS now, and the default port has been changed to 10259.
- Applications that fetch metrics from kube-scheduler should use a dedicated service account which is allowed to access nonResourceURLs `/metrics`. ([#96345](https://github.com/kubernetes/kubernetes/pull/96345), [@ingvagabund](https://github.com/ingvagabund)) [SIG Cloud Provider, Scheduling and Testing]
- Feature-gate `VolumeSubpath` has been deprecated and cannot be disabled. It will be completely removed in 1.25 ([#105474](https://github.com/kubernetes/kubernetes/pull/105474), [@mauriciopoppe](https://github.com/mauriciopoppe))
- Kubeadm: add a new `output/v1alpha2` API that is identical to the `output/v1alpha1`, but attempts to resolve some internal dependencies with the `kubeadm/v1beta2` API. The `output/v1alpha1` API is now deprecated and will be removed in a future release. ([#105295](https://github.com/kubernetes/kubernetes/pull/105295), [@neolit123](https://github.com/neolit123))
- Kubeadm: add the kubeadm specific, Alpha (disabled by default) feature gate UnversionedKubeletConfigMap. When this feature is enabled kubeadm will start using a new naming format for the ConfigMap where it stores the KubeletConfiguration structure. The old format included the Kubernetes version - "kube-system/kubelet-config-1.22", while the new format does not - "kube-system/kubelet-config". A similar formatting change is done for the related RBAC rules. The old format is now DEPRECATED and will be removed after the feature graduates to GA. When writing the ConfigMap kubeadm (init, upgrade apply) will respect the value of UnversionedKubeletConfigMap, while when reading it (join, reset, upgrade), it would attempt to use new format first and fallback to the legacy format if needed. ([#105741](https://github.com/kubernetes/kubernetes/pull/105741), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle and Testing]
@ -1931,4 +1937,4 @@ filename | sha512 hash
- github.com/coreos/pkg: [399ea9e](https://github.com/coreos/pkg/tree/399ea9e)
- github.com/dgrijalva/jwt-go: [v3.2.0+incompatible](https://github.com/dgrijalva/jwt-go/tree/v3.2.0)
- github.com/google/martian: [v2.1.0+incompatible](https://github.com/google/martian/tree/v2.1.0)
- github.com/jpillora/backoff: [v1.0.0](https://github.com/jpillora/backoff/tree/v1.0.0)
- github.com/jpillora/backoff: [v1.0.0](https://github.com/jpillora/backoff/tree/v1.0.0)