特性开关

June 9, 2025 · View on GitHub

特性开关（Feature Gates）是 Kubernetes 中用来开启实验性功能的配置，可以通过选项 --feature-gates 来给不同的组件（如 kube-apiserver、kube-controller-manager、kube-scheduler、kubelet、kube-proxy等）开启功能特性。

Feature	Default	Stage	Since	Until
`Accelerators`	`false`	Alpha	1.6	1.10
`AdvancedAuditing`	`false`	Alpha	1.7	1.7
`AdvancedAuditing`	`true`	Beta	1.8	1.11
`AdvancedAuditing`	`true`	GA	1.12	-
`AffinityInAnnotations`	`false`	Alpha	1.6	1.7
`AllowExtTrafficLocalEndpoints`	`false`	Beta	1.4	1.6
`AllowExtTrafficLocalEndpoints`	`true`	GA	1.7	-
`APIListChunking`	`false`	Alpha	1.8	1.8
`APIListChunking`	`true`	Beta	1.9
`APIResponseCompression`	`false`	Alpha	1.7
`AppArmor`	`true`	Beta	1.4
`AttachVolumeLimit`	`false`	Alpha	1.11
`BlockVolume`	`false`	Alpha	1.9
`CPUManager`	`false`	Alpha	1.8	1.9
`CPUManager`	`true`	Beta	1.10
`CRIContainerLogRotation`	`false`	Alpha	1.10	1.10
`CRIContainerLogRotation`	`true`	Beta	1.11
`CSIBlockVolume`	`false`	Alpha	1.11	1.11
`CSIPersistentVolume`	`false`	Alpha	1.9	1.9
`CSIPersistentVolume`	`true`	Beta	1.10
`CustomPodDNS`	`false`	Alpha	1.9	1.9
`CustomPodDNS`	`true`	Beta	1.10
`CustomResourceSubresources`	`false`	Alpha	1.10
`CustomResourceValidation`	`false`	Alpha	1.8	1.8
`CustomResourceValidation`	`true`	Beta	1.9
`DebugContainers`	`false`	Alpha	1.10
`DevicePlugins`	`false`	Alpha	1.8	1.9
`DevicePlugins`	`true`	Beta	1.10
`DynamicKubeletConfig`	`false`	Alpha	1.4	1.10
`DynamicKubeletConfig`	`true`	Beta	1.11
`DynamicProvisioningScheduling`	`false`	Alpha	1.11	1.11
`DynamicVolumeProvisioning`	`true`	Alpha	1.3	1.7
`DynamicVolumeProvisioning`	`true`	GA	1.8
`EnableEquivalenceClassCache`	`false`	Alpha	1.8
`ExpandInUsePersistentVolumes`	`false`	Alpha	1.11
`ExpandPersistentVolumes`	`false`	Alpha	1.8	1.10
`ExpandPersistentVolumes`	`true`	Beta	1.11
`ExperimentalCriticalPodAnnotation`	`false`	Alpha	1.5
`ExperimentalHostUserNamespaceDefaulting`	`false`	Beta	1.5
`GCERegionalPersistentDisk`	`true`	Beta	1.10
`HugePages`	`false`	Alpha	1.8	1.9
`HugePages`	`true`	Beta	1.10
`HyperVContainer`	`false`	Alpha	1.10
`ImageVolume`	`false`	Alpha	1.31	1.32
`ImageVolume`	`false`	Beta	1.33
`Initializers`	`false`	Alpha	1.7
`KubeletConfigFile`	`false`	Alpha	1.8	1.9
`KubeletPluginsWatcher`	`false`	Alpha	1.11	1.11
`KubeletPluginsWatcher`	`true`	Beta	1.12
`LocalStorageCapacityIsolation`	`false`	Alpha	1.7	1.9
`LocalStorageCapacityIsolation`	`true`	Beta	1.10
`MountContainers`	`false`	Alpha	1.9
`MountPropagation`	`false`	Alpha	1.8	1.9
`MountPropagation`	`true`	Beta	1.10	1.11
`MountPropagation`	`true`	GA	1.12
`PersistentLocalVolumes`	`false`	Alpha	1.7	1.9
`PersistentLocalVolumes`	`true`	Beta	1.10
`PodPriority`	`false`	Alpha	1.8
`PodReadinessGates`	`false`	Alpha	1.11
`PodReadinessGates`	`true`	Beta	1.12
`PodShareProcessNamespace`	`false`	Alpha	1.10
`PodShareProcessNamespace`	`true`	Beta	1.12
`PVCProtection`	`false`	Alpha	1.9	1.9
`ReadOnlyAPIDataVolumes`	`true`	Deprecated	1.10
`ResourceLimitsPriorityFunction`	`false`	Alpha	1.9
`RotateKubeletClientCertificate`	`true`	Beta	1.7
`RotateKubeletServerCertificate`	`false`	Alpha	1.7
`RunAsGroup`	`false`	Alpha	1.10
`RuntimeClass`	`false`	Alpha	1.12
`SCTPSupport`	`false`	Alpha	1.12
`ServiceNodeExclusion`	`false`	Alpha	1.8
`StorageObjectInUseProtection`	`true`	Beta	1.10	1.10
`StorageObjectInUseProtection`	`true`	GA	1.11
`StreamingProxyRedirects`	`true`	Beta	1.5
`SupportIPVSProxyMode`	`false`	Alpha	1.8	1.8
`SupportIPVSProxyMode`	`false`	Beta	1.9	1.9
`SupportIPVSProxyMode`	`true`	Beta	1.10	1.10
`SupportIPVSProxyMode`	`true`	GA	1.11
`SupportPodPidsLimit`	`false`	Alpha	1.10
`Sysctls`	`true`	Beta	1.11
`TaintBasedEvictions`	`false`	Alpha	1.6
`TaintNodesByCondition`	`false`	Alpha	1.8
`TaintNodesByCondition`	`true`	Beta	1.12
`TokenRequest`	`false`	Alpha	1.10	1.11
`TokenRequest`	`True`	Beta	1.12
`TokenRequestProjection`	`false`	Alpha	1.11	1.11
`TokenRequestProjection`	`True`	Beta	1.12
`TTLAfterFinished`	`false`	Alpha	1.12
`VolumeScheduling`	`false`	Alpha	1.9	1.9
`VolumeScheduling`	`true`	Beta	1.10
`VolumeSubpathEnvExpansion`	`false`	Alpha	1.11
`ScheduleDaemonSetPods`	`true`	Beta	1.12
`MutableCSINodeAllocatableCount`	`false`	Alpha	1.33

参考文档

Kubernetes Feature Gates