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cluster: drop DisableLocalStorageCapacityIsolation
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it was used to workaround a kubelet crash issue with rootless
providers.

The Kubelet seems to work fine now with localStorageCapacityIsolation
enabled in a user namespace so drop the special handling.  After this
change, ephemeral storage can be used in a rootless cluster.

Closes: #3359

Signed-off-by: Giuseppe Scrivano <[email protected]>
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giuseppe authored and BenTheElder committed Jun 11, 2024
1 parent 83db82f commit ceb72e4
Showing 1 changed file with 0 additions and 15 deletions.
15 changes: 0 additions & 15 deletions pkg/cluster/internal/kubeadm/config.go
Original file line number Diff line number Diff line change
Expand Up @@ -79,10 +79,6 @@ type ConfigData struct {
// RootlessProvider is true if kind is running with rootless mode
RootlessProvider bool

// DisableLocalStorageCapacityIsolation is typically set true based on RootlessProvider
// based on the Kubernetes version, if true kubelet localStorageCapacityIsolation is set false
DisableLocalStorageCapacityIsolation bool

// DerivedConfigData contains fields computed from the other fields for use
// in the config templates and should only be populated by calling Derive()
DerivedConfigData
Expand Down Expand Up @@ -453,7 +449,6 @@ evictionHard:
{{ range $index, $gate := .SortedFeatureGates }}
"{{ (StructuralData $gate.Name) }}": {{ $gate.Value }}
{{end}}{{end}}
{{if .DisableLocalStorageCapacityIsolation}}localStorageCapacityIsolation: false{{end}}
{{if ne .KubeProxyMode "none"}}
---
apiVersion: kubeproxy.config.k8s.io/v1alpha1
Expand Down Expand Up @@ -505,16 +500,6 @@ func Config(data ConfigData) (config string, err error) {
return "", errors.Errorf("version %q is not compatible with rootless provider (hint: kind v0.11.x may work with this version)", ver)
}
data.FeatureGates["KubeletInUserNamespace"] = true

// For avoiding err="failed to get rootfs info: failed to get device for dir \"/var/lib/kubelet\": could not find device with major: 0, minor: 41 in cached partitions map"
// https://github.com/kubernetes-sigs/kind/issues/2524
if ver.LessThan(version.MustParseSemantic("v1.25.0-alpha.3.440+0064010cddfa00")) {
// this feature gate was removed in v1.25 and replaced by an opt-out to disable
data.FeatureGates["LocalStorageCapacityIsolation"] = false
} else {
// added in v1.25 https://github.com/kubernetes/kubernetes/pull/111513
data.DisableLocalStorageCapacityIsolation = true
}
}

// assume the latest API version, then fallback if the k8s version is too low
Expand Down

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