Merge pull request #47298 from sohankunkerkar/dev-1.31
Update docs for beta promotion of cgroup driver detection from CRI
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ebb3da5f56
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@ -9,6 +9,10 @@ stages:
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- stage: alpha
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defaultValue: false
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fromVersion: "1.28"
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toVersion: "1.30"
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- stage: beta
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defaultValue: true
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fromVersion: "1.31"
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---
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Enable detection of the kubelet cgroup driver
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configuration option from the {{<glossary_tooltip term_id="cri" text="CRI">}}.
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@ -140,12 +140,6 @@ Starting with v1.22 and later, when creating a cluster with kubeadm, if the user
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the `cgroupDriver` field under `KubeletConfiguration`, kubeadm defaults it to `systemd`.
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{{< /note >}}
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In Kubernetes v1.28, with the `KubeletCgroupDriverFromCRI`
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[feature gate](/docs/reference/command-line-tools-reference/feature-gates/)
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enabled and a container runtime that supports the `RuntimeConfig` CRI RPC,
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the kubelet automatically detects the appropriate cgroup driver from the runtime,
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and ignores the `cgroupDriver` setting within the kubelet configuration.
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If you configure `systemd` as the cgroup driver for the kubelet, you must also
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configure `systemd` as the cgroup driver for the container runtime. Refer to
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the documentation for your container runtime for instructions. For example:
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@ -153,6 +147,12 @@ the documentation for your container runtime for instructions. For example:
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* [containerd](#containerd-systemd)
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* [CRI-O](#cri-o)
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In Kubernetes {{< skew currentVersion >}}, with the `KubeletCgroupDriverFromCRI`
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[feature gate](/docs/reference/command-line-tools-reference/feature-gates/)
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enabled and a container runtime that supports the `RuntimeConfig` CRI RPC,
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the kubelet automatically detects the appropriate cgroup driver from the runtime,
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and ignores the `cgroupDriver` setting within the kubelet configuration.
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{{< caution >}}
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Changing the cgroup driver of a Node that has joined a cluster is a sensitive operation.
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If the kubelet has created Pods using the semantics of one cgroup driver, changing the container
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