特性开关

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。

开关名称 默认开启 阶段 支持版本
Accelerators false Alpha 1.6+
AdvancedAuditing false Alpha 1.7
AdvancedAuditing true Beta 1.8+
AffinityInAnnotations false Alpha 1.6-1.7
AllowExtTrafficLocalEndpoints false Beta 1.4-1.6
AllowExtTrafficLocalEndpoints true GA 1.7+
APIListChunking false Alpha 1.8
APIListChunking true Beta 1.9+
APIResponseCompression false Alpha 1.7+
AppArmor true Beta 1.4+
BlockVolume false Alpha 1.9+
CPUManager false Alpha 1.8-1.9
CPUManager true Beta 1.10
CSIPersistentVolume false Alpha 1.9+
CustomPodDNS false Alpha 1.9+
CustomResourceValidation false Alpha 1.8
CustomResourceValidation true Beta 1.9+
CustomResourceSubresources false Alpha 1.10
DevicePlugins false Alpha 1.8+
DynamicKubeletConfig false Alpha 1.4+
DynamicVolumeProvisioning true Alpha 1.3-1.7
DynamicVolumeProvisioning true GA 1.8+
EnableEquivalenceClassCache false Alpha 1.8+
ExpandPersistentVolumes false Alpha 1.8+
ExperimentalCriticalPodAnnotation false Alpha 1.5+
ExperimentalHostUserNamespaceDefaulting false Beta 1.5+
HugePages false Alpha 1.8+
Initializers false Alpha 1.7+
KubeletConfigFile false Alpha 1.8+
LocalStorageCapacityIsolation false Alpha 1.7+
MountContainers false Alpha 1.9+
MountPropagation false Alpha 1.8+
PersistentLocalVolumes false Alpha 1.7+
PodPriority false Alpha 1.8+
PVCProtection false Alpha 1.9+
ResourceLimitsPriorityFunction false Alpha 1.9+
RotateKubeletClientCertificate true Beta 1.7+
RotateKubeletServerCertificate false Alpha 1.7+
ServiceNodeExclusion false Alpha 1.8+
StreamingProxyRedirects true Beta 1.5+
SupportIPVSProxyMode false Alpha 1.8+
TaintBasedEvictions false Alpha 1.6+
TaintNodesByCondition false Alpha 1.8+
VolumeScheduling false Alpha 1.9+

参考文档