mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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575 lines
22 KiB
Go
575 lines
22 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package features
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import (
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apiextensionsfeatures "k8s.io/apiextensions-apiserver/pkg/features"
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"k8s.io/apimachinery/pkg/util/runtime"
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genericfeatures "k8s.io/apiserver/pkg/features"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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"k8s.io/component-base/featuregate"
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)
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const (
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// Every feature gate should add method here following this template:
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//
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// // owner: @username
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// // alpha: v1.X
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// MyFeature featuregate.Feature = "MyFeature"
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// owner: @tallclair
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// beta: v1.4
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AppArmor featuregate.Feature = "AppArmor"
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// owner: @mtaufen
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// alpha: v1.4
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// beta: v1.11
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DynamicKubeletConfig featuregate.Feature = "DynamicKubeletConfig"
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// owner: @pweil-
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// alpha: v1.5
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//
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// Default userns=host for containers that are using other host namespaces, host mounts, the pod
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// contains a privileged container, or specific non-namespaced capabilities (MKNOD, SYS_MODULE,
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// SYS_TIME). This should only be enabled if user namespace remapping is enabled in the docker daemon.
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ExperimentalHostUserNamespaceDefaultingGate featuregate.Feature = "ExperimentalHostUserNamespaceDefaulting"
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// owner: @jiayingz
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// beta: v1.10
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//
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// Enables support for Device Plugins
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DevicePlugins featuregate.Feature = "DevicePlugins"
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// owner: @dxist
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// alpha: v1.16
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//
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// Enables support of HPA scaling to zero pods when an object or custom metric is configured.
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HPAScaleToZero featuregate.Feature = "HPAScaleToZero"
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// owner: @Huang-Wei
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// beta: v1.13
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//
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// Changes the logic behind evicting Pods from not ready Nodes
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// to take advantage of NoExecute Taints and Tolerations.
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TaintBasedEvictions featuregate.Feature = "TaintBasedEvictions"
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// owner: @mikedanese
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// alpha: v1.7
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// beta: v1.12
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//
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// Gets a server certificate for the kubelet from the Certificate Signing
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// Request API instead of generating one self signed and auto rotates the
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// certificate as expiration approaches.
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RotateKubeletServerCertificate featuregate.Feature = "RotateKubeletServerCertificate"
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// owner: @mikedanese
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// beta: v1.8
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//
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// Automatically renews the client certificate used for communicating with
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// the API server as the certificate approaches expiration.
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RotateKubeletClientCertificate featuregate.Feature = "RotateKubeletClientCertificate"
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// owner: @msau42
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// alpha: v1.7
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// beta: v1.10
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// ga: v1.14
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//
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// A new volume type that supports local disks on a node.
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PersistentLocalVolumes featuregate.Feature = "PersistentLocalVolumes"
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// owner: @jinxu
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// beta: v1.10
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//
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// New local storage types to support local storage capacity isolation
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LocalStorageCapacityIsolation featuregate.Feature = "LocalStorageCapacityIsolation"
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// owner: @gnufied
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// beta: v1.11
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// Ability to Expand persistent volumes
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ExpandPersistentVolumes featuregate.Feature = "ExpandPersistentVolumes"
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// owner: @mlmhl
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// beta: v1.15
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// Ability to expand persistent volumes' file system without unmounting volumes.
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ExpandInUsePersistentVolumes featuregate.Feature = "ExpandInUsePersistentVolumes"
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// owner: @gnufied
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// alpha: v1.14
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// beta: v1.16
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// Ability to expand CSI volumes
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ExpandCSIVolumes featuregate.Feature = "ExpandCSIVolumes"
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// owner: @verb
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// alpha: v1.16
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//
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// Allows running an ephemeral container in pod namespaces to troubleshoot a running pod.
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EphemeralContainers featuregate.Feature = "EphemeralContainers"
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// owner: @verb
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// beta: v1.12
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//
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// Allows all containers in a pod to share a process namespace.
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PodShareProcessNamespace featuregate.Feature = "PodShareProcessNamespace"
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// owner: @bsalamat
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// alpha: v1.8
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// beta: v1.11
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// GA: v1.14
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//
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// Add priority to pods. Priority affects scheduling and preemption of pods.
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PodPriority featuregate.Feature = "PodPriority"
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// owner: @k82cn
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// beta: v1.12
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//
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// Taint nodes based on their condition status for 'NetworkUnavailable',
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// 'MemoryPressure', 'PIDPressure' and 'DiskPressure'.
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TaintNodesByCondition featuregate.Feature = "TaintNodesByCondition"
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// owner: @sjenning
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// alpha: v1.11
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//
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// Allows resource reservations at the QoS level preventing pods at lower QoS levels from
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// bursting into resources requested at higher QoS levels (memory only for now)
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QOSReserved featuregate.Feature = "QOSReserved"
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// owner: @ConnorDoyle
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// alpha: v1.8
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// beta: v1.10
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//
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// Alternative container-level CPU affinity policies.
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CPUManager featuregate.Feature = "CPUManager"
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// owner: @szuecs
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// alpha: v1.12
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//
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// Enable nodes to change CPUCFSQuotaPeriod
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CPUCFSQuotaPeriod featuregate.Feature = "CustomCPUCFSQuotaPeriod"
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// owner: @lmdaly
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// alpha: v1.16
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//
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// Enable resource managers to make NUMA aligned decisions
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TopologyManager featuregate.Feature = "TopologyManager"
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// owner: @sjenning
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// beta: v1.11
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//
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// Enable pods to set sysctls on a pod
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Sysctls featuregate.Feature = "Sysctls"
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// owner @brendandburns
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// alpha: v1.9
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//
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// Enable nodes to exclude themselves from service load balancers
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ServiceNodeExclusion featuregate.Feature = "ServiceNodeExclusion"
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// owner: @jsafrane
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// alpha: v1.9
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//
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// Enable running mount utilities in containers.
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MountContainers featuregate.Feature = "MountContainers"
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// owner: @saad-ali
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// alpha: v1.12
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// beta: v1.14
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// Enable all logic related to the CSIDriver API object in storage.k8s.io
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CSIDriverRegistry featuregate.Feature = "CSIDriverRegistry"
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// owner: @verult
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// alpha: v1.12
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// beta: v1.14
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// Enable all logic related to the CSINode API object in storage.k8s.io
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CSINodeInfo featuregate.Feature = "CSINodeInfo"
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// owner: @screeley44
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// alpha: v1.9
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// beta: v1.13
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//
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// Enable Block volume support in containers.
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BlockVolume featuregate.Feature = "BlockVolume"
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// owner: @pospispa
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// GA: v1.11
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//
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// Postpone deletion of a PV or a PVC when they are being used
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StorageObjectInUseProtection featuregate.Feature = "StorageObjectInUseProtection"
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// owner: @aveshagarwal
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// alpha: v1.9
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//
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// Enable resource limits priority function
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ResourceLimitsPriorityFunction featuregate.Feature = "ResourceLimitsPriorityFunction"
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// owner: @m1093782566
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// GA: v1.11
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//
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// Implement IPVS-based in-cluster service load balancing
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SupportIPVSProxyMode featuregate.Feature = "SupportIPVSProxyMode"
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// owner: @dims, @derekwaynecarr
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// alpha: v1.10
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// beta: v1.14
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//
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// Implement support for limiting pids in pods
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SupportPodPidsLimit featuregate.Feature = "SupportPodPidsLimit"
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// owner: @feiskyer
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// alpha: v1.10
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//
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// Enable Hyper-V containers on Windows
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HyperVContainer featuregate.Feature = "HyperVContainer"
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// owner: @k82cn
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// beta: v1.12
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//
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// Schedule DaemonSet Pods by default scheduler instead of DaemonSet controller
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ScheduleDaemonSetPods featuregate.Feature = "ScheduleDaemonSetPods"
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// owner: @mikedanese
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// beta: v1.12
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//
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// Implement TokenRequest endpoint on service account resources.
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TokenRequest featuregate.Feature = "TokenRequest"
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// owner: @mikedanese
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// beta: v1.12
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//
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// Enable ServiceAccountTokenVolumeProjection support in ProjectedVolumes.
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TokenRequestProjection featuregate.Feature = "TokenRequestProjection"
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// owner: @mikedanese
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// alpha: v1.13
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//
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// Migrate ServiceAccount volumes to use a projected volume consisting of a
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// ServiceAccountTokenVolumeProjection. This feature adds new required flags
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// to the API server.
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BoundServiceAccountTokenVolume featuregate.Feature = "BoundServiceAccountTokenVolume"
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// owner: @Random-Liu
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// beta: v1.11
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//
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// Enable container log rotation for cri container runtime
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CRIContainerLogRotation featuregate.Feature = "CRIContainerLogRotation"
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// owner: @krmayankk
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// beta: v1.14
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//
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// Enables control over the primary group ID of containers' init processes.
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RunAsGroup featuregate.Feature = "RunAsGroup"
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// owner: @saad-ali
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// ga
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//
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// Allow mounting a subpath of a volume in a container
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// Do not remove this feature gate even though it's GA
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VolumeSubpath featuregate.Feature = "VolumeSubpath"
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// owner: @gnufied
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// beta : v1.12
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//
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// Add support for volume plugins to report node specific
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// volume limits
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AttachVolumeLimit featuregate.Feature = "AttachVolumeLimit"
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// owner: @ravig
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// alpha: v1.11
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//
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// Include volume count on node to be considered for balanced resource allocation while scheduling.
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// A node which has closer cpu,memory utilization and volume count is favoured by scheduler
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// while making decisions.
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BalanceAttachedNodeVolumes featuregate.Feature = "BalanceAttachedNodeVolumes"
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// owner: @kevtaylor
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// beta: v1.15
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//
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// Allow subpath environment variable substitution
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// Only applicable if the VolumeSubpath feature is also enabled
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VolumeSubpathEnvExpansion featuregate.Feature = "VolumeSubpathEnvExpansion"
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// owner: @vikaschoudhary16
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// beta: v1.12
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//
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//
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// Enable resource quota scope selectors
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ResourceQuotaScopeSelectors featuregate.Feature = "ResourceQuotaScopeSelectors"
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// owner: @vladimirvivien
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// alpha: v1.11
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// beta: v1.14
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//
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// Enables CSI to use raw block storage volumes
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CSIBlockVolume featuregate.Feature = "CSIBlockVolume"
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// owner: @vladimirvivien
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// alpha: v1.14
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//
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// Enables CSI Inline volumes support for pods
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CSIInlineVolume featuregate.Feature = "CSIInlineVolume"
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// owner: @tallclair
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// alpha: v1.12
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// beta: v1.14
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//
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// Enables RuntimeClass, for selecting between multiple runtimes to run a pod.
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RuntimeClass featuregate.Feature = "RuntimeClass"
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// owner: @mtaufen
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// alpha: v1.12
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// beta: v1.14
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//
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// Kubelet uses the new Lease API to report node heartbeats,
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// (Kube) Node Lifecycle Controller uses these heartbeats as a node health signal.
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NodeLease featuregate.Feature = "NodeLease"
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// owner: @janosi
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// alpha: v1.12
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//
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// Enables SCTP as new protocol for Service ports, NetworkPolicy, and ContainerPort in Pod/Containers definition
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SCTPSupport featuregate.Feature = "SCTPSupport"
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// owner: @xing-yang
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// alpha: v1.12
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//
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// Enable volume snapshot data source support.
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VolumeSnapshotDataSource featuregate.Feature = "VolumeSnapshotDataSource"
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// owner: @jessfraz
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// alpha: v1.12
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//
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// Enables control over ProcMountType for containers.
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ProcMountType featuregate.Feature = "ProcMountType"
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// owner: @janetkuo
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// alpha: v1.12
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//
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// Allow TTL controller to clean up Pods and Jobs after they finish.
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TTLAfterFinished featuregate.Feature = "TTLAfterFinished"
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// owner: @dashpole
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// alpha: v1.13
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// beta: v1.15
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//
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// Enables the kubelet's pod resources grpc endpoint
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KubeletPodResources featuregate.Feature = "KubeletPodResources"
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// owner: @davidz627
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// alpha: v1.14
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//
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// Enables the in-tree storage to CSI Plugin migration feature.
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CSIMigration featuregate.Feature = "CSIMigration"
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// owner: @davidz627
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// alpha: v1.14
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//
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// Enables the GCE PD in-tree driver to GCE CSI Driver migration feature.
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CSIMigrationGCE featuregate.Feature = "CSIMigrationGCE"
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// owner: @leakingtapan
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// alpha: v1.14
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//
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// Enables the AWS EBS in-tree driver to AWS EBS CSI Driver migration feature.
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CSIMigrationAWS featuregate.Feature = "CSIMigrationAWS"
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// owner: @andyzhangx
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// alpha: v1.15
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//
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// Enables the Azure Disk in-tree driver to Azure Disk Driver migration feature.
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CSIMigrationAzureDisk featuregate.Feature = "CSIMigrationAzureDisk"
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// owner: @andyzhangx
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// alpha: v1.15
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//
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// Enables the Azure File in-tree driver to Azure File Driver migration feature.
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CSIMigrationAzureFile featuregate.Feature = "CSIMigrationAzureFile"
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// owner: @RobertKrawitz
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// beta: v1.15
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//
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// Implement support for limiting pids in nodes
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SupportNodePidsLimit featuregate.Feature = "SupportNodePidsLimit"
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// owner: @wk8
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// alpha: v1.14
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//
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// Enables GMSA support for Windows workloads.
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WindowsGMSA featuregate.Feature = "WindowsGMSA"
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// owner: @bclau
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// alpha: v1.16
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//
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// Enables support for running container entrypoints as different usernames than their default ones.
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WindowsRunAsUserName featuregate.Feature = "WindowsRunAsUserName"
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// owner: @adisky
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// alpha: v1.14
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//
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// Enables the OpenStack Cinder in-tree driver to OpenStack Cinder CSI Driver migration feature.
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CSIMigrationOpenStack featuregate.Feature = "CSIMigrationOpenStack"
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// owner: @verult
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// GA: v1.13
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//
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// Enables the regional PD feature on GCE.
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deprecatedGCERegionalPersistentDisk featuregate.Feature = "GCERegionalPersistentDisk"
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// owner: @MrHohn
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// alpha: v1.15
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//
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// Enables Finalizer Protection for Service LoadBalancers.
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ServiceLoadBalancerFinalizer featuregate.Feature = "ServiceLoadBalancerFinalizer"
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// owner: @RobertKrawitz
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// alpha: v1.15
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//
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// Allow use of filesystems for ephemeral storage monitoring.
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// Only applies if LocalStorageCapacityIsolation is set.
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LocalStorageCapacityIsolationFSQuotaMonitoring featuregate.Feature = "LocalStorageCapacityIsolationFSQuotaMonitoring"
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// owner: @denkensk
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// alpha: v1.15
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//
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// Enables NonPreempting option for priorityClass and pod.
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NonPreemptingPriority featuregate.Feature = "NonPreemptingPriority"
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// owner: @j-griffith
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// alpha: v1.15
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//
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// Enable support for specifying an existing PVC as a DataSource
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VolumePVCDataSource featuregate.Feature = "VolumePVCDataSource"
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// owner: @egernst
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// alpha: v1.16
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//
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// Enables PodOverhead, for accounting pod overheads which are specific to a given RuntimeClass
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PodOverhead featuregate.Feature = "PodOverhead"
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// owner: @khenidak
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// alpha: v1.15
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//
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// Enables ipv6 dual stack
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IPv6DualStack featuregate.Feature = "IPv6DualStack"
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// owner: @Huang-Wei
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// alpha: v1.16
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//
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// Schedule pods evenly across available topology domains.
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EvenPodsSpread featuregate.Feature = "EvenPodsSpread"
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)
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func init() {
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runtime.Must(utilfeature.DefaultMutableFeatureGate.Add(defaultKubernetesFeatureGates))
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}
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// defaultKubernetesFeatureGates consists of all known Kubernetes-specific feature keys.
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// To add a new feature, define a key for it above and add it here. The features will be
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// available throughout Kubernetes binaries.
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var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureSpec{
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AppArmor: {Default: true, PreRelease: featuregate.Beta},
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DynamicKubeletConfig: {Default: true, PreRelease: featuregate.Beta},
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ExperimentalHostUserNamespaceDefaultingGate: {Default: false, PreRelease: featuregate.Beta},
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DevicePlugins: {Default: true, PreRelease: featuregate.Beta},
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TaintBasedEvictions: {Default: true, PreRelease: featuregate.Beta},
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RotateKubeletServerCertificate: {Default: true, PreRelease: featuregate.Beta},
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RotateKubeletClientCertificate: {Default: true, PreRelease: featuregate.Beta},
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PersistentLocalVolumes: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.17
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LocalStorageCapacityIsolation: {Default: true, PreRelease: featuregate.Beta},
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Sysctls: {Default: true, PreRelease: featuregate.Beta},
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EphemeralContainers: {Default: false, PreRelease: featuregate.Alpha},
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PodShareProcessNamespace: {Default: true, PreRelease: featuregate.Beta},
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PodPriority: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.18
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TaintNodesByCondition: {Default: true, PreRelease: featuregate.Beta},
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QOSReserved: {Default: false, PreRelease: featuregate.Alpha},
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ExpandPersistentVolumes: {Default: true, PreRelease: featuregate.Beta},
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ExpandInUsePersistentVolumes: {Default: true, PreRelease: featuregate.Beta},
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ExpandCSIVolumes: {Default: true, PreRelease: featuregate.Beta},
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AttachVolumeLimit: {Default: true, PreRelease: featuregate.Beta},
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CPUManager: {Default: true, PreRelease: featuregate.Beta},
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CPUCFSQuotaPeriod: {Default: false, PreRelease: featuregate.Alpha},
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TopologyManager: {Default: false, PreRelease: featuregate.Alpha},
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ServiceNodeExclusion: {Default: false, PreRelease: featuregate.Alpha},
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MountContainers: {Default: false, PreRelease: featuregate.Alpha},
|
|
CSIDriverRegistry: {Default: true, PreRelease: featuregate.Beta},
|
|
CSINodeInfo: {Default: true, PreRelease: featuregate.Beta},
|
|
BlockVolume: {Default: true, PreRelease: featuregate.Beta},
|
|
StorageObjectInUseProtection: {Default: true, PreRelease: featuregate.GA},
|
|
ResourceLimitsPriorityFunction: {Default: false, PreRelease: featuregate.Alpha},
|
|
SupportIPVSProxyMode: {Default: true, PreRelease: featuregate.GA},
|
|
SupportPodPidsLimit: {Default: true, PreRelease: featuregate.Beta},
|
|
SupportNodePidsLimit: {Default: true, PreRelease: featuregate.Beta},
|
|
HyperVContainer: {Default: false, PreRelease: featuregate.Alpha},
|
|
ScheduleDaemonSetPods: {Default: true, PreRelease: featuregate.Beta},
|
|
TokenRequest: {Default: true, PreRelease: featuregate.Beta},
|
|
TokenRequestProjection: {Default: true, PreRelease: featuregate.Beta},
|
|
BoundServiceAccountTokenVolume: {Default: false, PreRelease: featuregate.Alpha},
|
|
CRIContainerLogRotation: {Default: true, PreRelease: featuregate.Beta},
|
|
deprecatedGCERegionalPersistentDisk: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.17
|
|
CSIMigration: {Default: false, PreRelease: featuregate.Alpha},
|
|
CSIMigrationGCE: {Default: false, PreRelease: featuregate.Alpha},
|
|
CSIMigrationAWS: {Default: false, PreRelease: featuregate.Alpha},
|
|
CSIMigrationAzureDisk: {Default: false, PreRelease: featuregate.Alpha},
|
|
CSIMigrationAzureFile: {Default: false, PreRelease: featuregate.Alpha},
|
|
RunAsGroup: {Default: true, PreRelease: featuregate.Beta},
|
|
CSIMigrationOpenStack: {Default: false, PreRelease: featuregate.Alpha},
|
|
VolumeSubpath: {Default: true, PreRelease: featuregate.GA},
|
|
BalanceAttachedNodeVolumes: {Default: false, PreRelease: featuregate.Alpha},
|
|
VolumeSubpathEnvExpansion: {Default: true, PreRelease: featuregate.Beta},
|
|
ResourceQuotaScopeSelectors: {Default: true, PreRelease: featuregate.Beta},
|
|
CSIBlockVolume: {Default: true, PreRelease: featuregate.Beta},
|
|
CSIInlineVolume: {Default: false, PreRelease: featuregate.Alpha},
|
|
RuntimeClass: {Default: true, PreRelease: featuregate.Beta},
|
|
NodeLease: {Default: true, PreRelease: featuregate.Beta},
|
|
SCTPSupport: {Default: false, PreRelease: featuregate.Alpha},
|
|
VolumeSnapshotDataSource: {Default: false, PreRelease: featuregate.Alpha},
|
|
ProcMountType: {Default: false, PreRelease: featuregate.Alpha},
|
|
TTLAfterFinished: {Default: false, PreRelease: featuregate.Alpha},
|
|
KubeletPodResources: {Default: true, PreRelease: featuregate.Beta},
|
|
WindowsGMSA: {Default: false, PreRelease: featuregate.Alpha},
|
|
WindowsRunAsUserName: {Default: false, PreRelease: featuregate.Alpha},
|
|
ServiceLoadBalancerFinalizer: {Default: false, PreRelease: featuregate.Alpha},
|
|
LocalStorageCapacityIsolationFSQuotaMonitoring: {Default: false, PreRelease: featuregate.Alpha},
|
|
NonPreemptingPriority: {Default: false, PreRelease: featuregate.Alpha},
|
|
VolumePVCDataSource: {Default: false, PreRelease: featuregate.Alpha},
|
|
PodOverhead: {Default: false, PreRelease: featuregate.Alpha},
|
|
IPv6DualStack: {Default: false, PreRelease: featuregate.Alpha},
|
|
EvenPodsSpread: {Default: false, PreRelease: featuregate.Alpha},
|
|
|
|
// inherited features from generic apiserver, relisted here to get a conflict if it is changed
|
|
// unintentionally on either side:
|
|
genericfeatures.StreamingProxyRedirects: {Default: true, PreRelease: featuregate.Beta},
|
|
genericfeatures.ValidateProxyRedirects: {Default: true, PreRelease: featuregate.Beta},
|
|
genericfeatures.AdvancedAuditing: {Default: true, PreRelease: featuregate.GA},
|
|
genericfeatures.DynamicAuditing: {Default: false, PreRelease: featuregate.Alpha},
|
|
genericfeatures.APIResponseCompression: {Default: true, PreRelease: featuregate.Beta},
|
|
genericfeatures.APIListChunking: {Default: true, PreRelease: featuregate.Beta},
|
|
genericfeatures.DryRun: {Default: true, PreRelease: featuregate.Beta},
|
|
genericfeatures.ServerSideApply: {Default: false, PreRelease: featuregate.Alpha},
|
|
genericfeatures.RequestManagement: {Default: false, PreRelease: featuregate.Alpha},
|
|
|
|
// inherited features from apiextensions-apiserver, relisted here to get a conflict if it is changed
|
|
// unintentionally on either side:
|
|
apiextensionsfeatures.CustomResourceValidation: {Default: true, PreRelease: featuregate.Beta},
|
|
apiextensionsfeatures.CustomResourceSubresources: {Default: true, PreRelease: featuregate.Beta},
|
|
apiextensionsfeatures.CustomResourceWebhookConversion: {Default: true, PreRelease: featuregate.Beta},
|
|
apiextensionsfeatures.CustomResourcePublishOpenAPI: {Default: true, PreRelease: featuregate.Beta},
|
|
apiextensionsfeatures.CustomResourceDefaulting: {Default: true, PreRelease: featuregate.Beta},
|
|
|
|
// features that enable backwards compatibility but are scheduled to be removed
|
|
// ...
|
|
HPAScaleToZero: {Default: false, PreRelease: featuregate.Alpha},
|
|
}
|