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kubeadm: EtcdLearnerMode is beta in v1.29 #42801

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kubeadm: EtcdLearnerMode is beta in v1.29 #42801

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20 changes: 10 additions & 10 deletions content/en/docs/reference/setup-tools/kubeadm/kubeadm-init.md
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Expand Up @@ -157,9 +157,9 @@ List of feature gates:
{{< table caption="kubeadm feature gates" >}}
Feature | Default | Alpha | Beta | GA
:-------|:--------|:------|:-----|:----
`EtcdLearnerMode` | `true` | 1.27 | 1.29 | -
`PublicKeysECDSA` | `false` | 1.19 | - | -
`RootlessControlPlane` | `false` | 1.22 | - | -
`EtcdLearnerMode` | `false` | 1.27 | - | -
{{< /table >}}

{{< note >}}
Expand All @@ -168,6 +168,10 @@ Once a feature gate goes GA its value becomes locked to `true` by default.

Feature gate descriptions:

`EtcdLearnerMode`
: With this feature gate enabled, when joining a new control plane node, a new etcd member will be created
as a learner and promoted to a voting member only after the etcd data are fully aligned.

`PublicKeysECDSA`
: Can be used to create a cluster that uses ECDSA certificates instead of the default RSA algorithm.
Renewal of existing ECDSA certificates is also supported using `kubeadm certs renew`, but you cannot
Expand All @@ -179,10 +183,6 @@ for `kube-apiserver`, `kube-controller-manager`, `kube-scheduler` and `etcd` to
If the flag is not set, those components run as root. You can change the value of this feature gate before
you upgrade to a newer version of Kubernetes.

`EtcdLearnerMode`
: With this feature gate enabled, when joining a new control plane node, a new etcd member will be created
as a learner and promoted to a voting member only after the etcd data are fully aligned.

List of deprecated feature gates:

{{< table caption="kubeadm deprecated feature gates" >}}
Expand Down Expand Up @@ -212,12 +212,16 @@ List of removed feature gates:
{{< table caption="kubeadm removed feature gates" >}}
Feature | Alpha | Beta | GA | Removed
:-------|:------|:-----|:---|:-------
`UnversionedKubeletConfigMap` | 1.22 | 1.23 | 1.25 | 1.26
`IPv6DualStack` | 1.16 | 1.21 | 1.23 | 1.24
`UnversionedKubeletConfigMap` | 1.22 | 1.23 | 1.25 | 1.26
{{< /table >}}

Feature gate descriptions:

`IPv6DualStack`
: This flag helps to configure components dual stack when the feature is in progress. For more details on Kubernetes
dual-stack support see [Dual-stack support with kubeadm](/docs/setup/production-environment/tools/kubeadm/dual-stack-support/).

`UnversionedKubeletConfigMap`
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: This flag controls the name of the {{< glossary_tooltip text="ConfigMap" term_id="configmap" >}} where kubeadm stores
kubelet configuration data. With this flag not specified or set to `true`, the ConfigMap is named `kubelet-config`.
Expand All @@ -228,10 +232,6 @@ or `kubeadm upgrade apply`), kubeadm respects the value of `UnversionedKubeletCo
(during `kubeadm join`, `kubeadm reset`, `kubeadm upgrade ...`), kubeadm attempts to use unversioned ConfigMap name first;
if that does not succeed, kubeadm falls back to using the legacy (versioned) name for that ConfigMap.

`IPv6DualStack`
: This flag helps to configure components dual stack when the feature is in progress. For more details on Kubernetes
dual-stack support see [Dual-stack support with kubeadm](/docs/setup/production-environment/tools/kubeadm/dual-stack-support/).

### Adding kube-proxy parameters {#kube-proxy}

For information about kube-proxy parameters in the kubeadm configuration see:
Expand Down