features

Documentation

Index

• Constants

Constants

const (

	// owner: @tallclair
	// beta: v1.4
	AppArmor featuregate.Feature = "AppArmor"

	// owner: @mtaufen
	// alpha: v1.4
	// beta: v1.11
	DynamicKubeletConfig featuregate.Feature = "DynamicKubeletConfig"

	// owner: @pweil-
	// alpha: v1.5
	//
	// Default userns=host for containers that are using other host namespaces, host mounts, the pod
	// contains a privileged container, or specific non-namespaced capabilities (MKNOD, SYS_MODULE,
	// SYS_TIME). This should only be enabled if user namespace remapping is enabled in the docker daemon.
	ExperimentalHostUserNamespaceDefaultingGate featuregate.Feature = "ExperimentalHostUserNamespaceDefaulting"

	// owner: @jiayingz
	// beta: v1.10
	//
	// Enables support for Device Plugins
	DevicePlugins featuregate.Feature = "DevicePlugins"

	// owner: @dxist
	// alpha: v1.16
	//
	// Enables support of HPA scaling to zero pods when an object or custom metric is configured.
	HPAScaleToZero featuregate.Feature = "HPAScaleToZero"

	// owner: @mikedanese
	// alpha: v1.7
	// beta: v1.12
	//
	// Gets a server certificate for the kubelet from the Certificate Signing
	// Request API instead of generating one self signed and auto rotates the
	// certificate as expiration approaches.
	RotateKubeletServerCertificate featuregate.Feature = "RotateKubeletServerCertificate"

	// owner: @jinxu
	// beta: v1.10
	//
	// New local storage types to support local storage capacity isolation
	LocalStorageCapacityIsolation featuregate.Feature = "LocalStorageCapacityIsolation"

	// owner: @gnufied
	// beta: v1.11
	// Ability to Expand persistent volumes
	ExpandPersistentVolumes featuregate.Feature = "ExpandPersistentVolumes"

	// owner: @mlmhl
	// beta: v1.15
	// Ability to expand persistent volumes' file system without unmounting volumes.
	ExpandInUsePersistentVolumes featuregate.Feature = "ExpandInUsePersistentVolumes"

	// owner: @gnufied
	// alpha: v1.14
	// beta: v1.16
	// Ability to expand CSI volumes
	ExpandCSIVolumes featuregate.Feature = "ExpandCSIVolumes"

	// owner: @verb
	// alpha: v1.16
	//
	// Allows running an ephemeral container in pod namespaces to troubleshoot a running pod.
	EphemeralContainers featuregate.Feature = "EphemeralContainers"

	// owner: @sjenning
	// alpha: v1.11
	//
	// Allows resource reservations at the QoS level preventing pods at lower QoS levels from
	// bursting into resources requested at higher QoS levels (memory only for now)
	QOSReserved featuregate.Feature = "QOSReserved"

	// owner: @ConnorDoyle
	// alpha: v1.8
	// beta: v1.10
	//
	// Alternative container-level CPU affinity policies.
	CPUManager featuregate.Feature = "CPUManager"

	// owner: @szuecs
	// alpha: v1.12
	//
	// Enable nodes to change CPUCFSQuotaPeriod
	CPUCFSQuotaPeriod featuregate.Feature = "CustomCPUCFSQuotaPeriod"

	// owner: @lmdaly
	// alpha: v1.16
	// beta: v1.18
	//
	// Enable resource managers to make NUMA aligned decisions
	TopologyManager featuregate.Feature = "TopologyManager"

	// owner: @sjenning
	// beta: v1.11
	//
	// Enable pods to set sysctls on a pod
	Sysctls featuregate.Feature = "Sysctls"

	// owner @smarterclayton
	// alpha: v1.16
	// beta:  v1.19
	// ga:  v1.21
	//
	// Enable legacy behavior to vary cluster functionality on the node-role.kubernetes.io labels. On by default (legacy), will be turned off in 1.18.
	// Lock to false in v1.21 and remove in v1.22.
	LegacyNodeRoleBehavior featuregate.Feature = "LegacyNodeRoleBehavior"

	// owner @brendandburns
	// alpha: v1.9
	// beta:  v1.19
	// ga:  v1.21
	//
	// Enable nodes to exclude themselves from service load balancers
	ServiceNodeExclusion featuregate.Feature = "ServiceNodeExclusion"

	// owner @smarterclayton
	// alpha: v1.16
	// beta:  v1.19
	// ga:  v1.21
	//
	// Enable nodes to exclude themselves from network disruption checks
	NodeDisruptionExclusion featuregate.Feature = "NodeDisruptionExclusion"

	// owner: @saad-ali
	// alpha: v1.12
	// beta:  v1.14
	// GA:    v1.18
	// Enable all logic related to the CSIDriver API object in storage.k8s.io
	CSIDriverRegistry featuregate.Feature = "CSIDriverRegistry"

	// owner: @screeley44
	// alpha: v1.9
	// beta:  v1.13
	// ga: 	  v1.18
	//
	// Enable Block volume support in containers.
	BlockVolume featuregate.Feature = "BlockVolume"

	// owner: @pospispa
	// GA: v1.11
	//
	// Postpone deletion of a PV or a PVC when they are being used
	StorageObjectInUseProtection featuregate.Feature = "StorageObjectInUseProtection"

	// owner: @dims, @derekwaynecarr
	// alpha: v1.10
	// beta: v1.14
	// GA: v1.20
	//
	// Implement support for limiting pids in pods
	SupportPodPidsLimit featuregate.Feature = "SupportPodPidsLimit"

	// owner: @mikedanese
	// alpha: v1.13
	//
	// Migrate ServiceAccount volumes to use a projected volume consisting of a
	// ServiceAccountTokenVolumeProjection. This feature adds new required flags
	// to the API server.
	BoundServiceAccountTokenVolume featuregate.Feature = "BoundServiceAccountTokenVolume"

	// owner: @mtaufen
	// alpha: v1.18
	// beta: v1.20
	//
	// Enable OIDC discovery endpoints (issuer and JWKS URLs) for the service
	// account issuer in the API server.
	// Note these endpoints serve minimally-compliant discovery docs that are
	// intended to be used for service account token verification.
	ServiceAccountIssuerDiscovery featuregate.Feature = "ServiceAccountIssuerDiscovery"

	// owner: @Random-Liu
	// beta: v1.11
	//
	// Enable container log rotation for cri container runtime
	CRIContainerLogRotation featuregate.Feature = "CRIContainerLogRotation"

	// owner: @krmayankk
	// beta: v1.14
	//
	// Enables control over the primary group ID of containers' init processes.
	RunAsGroup featuregate.Feature = "RunAsGroup"

	// owner: @saad-ali
	// ga
	//
	// Allow mounting a subpath of a volume in a container
	// Do not remove this feature gate even though it's GA
	VolumeSubpath featuregate.Feature = "VolumeSubpath"

	// owner: @ravig
	// alpha: v1.11
	//
	// Include volume count on node to be considered for balanced resource allocation while scheduling.
	// A node which has closer cpu,memory utilization and volume count is favoured by scheduler
	// while making decisions.
	BalanceAttachedNodeVolumes featuregate.Feature = "BalanceAttachedNodeVolumes"

	// owner: @vladimirvivien
	// alpha: v1.11
	// beta:  v1.14
	// ga: 	  v1.18
	//
	// Enables CSI to use raw block storage volumes
	CSIBlockVolume featuregate.Feature = "CSIBlockVolume"

	// owner: @pohly
	// alpha: v1.14
	// beta: v1.16
	//
	// Enables CSI Inline volumes support for pods
	CSIInlineVolume featuregate.Feature = "CSIInlineVolume"

	// owner: @pohly
	// alpha: v1.19
	//
	// Enables tracking of available storage capacity that CSI drivers provide.
	CSIStorageCapacity featuregate.Feature = "CSIStorageCapacity"

	// owner: @alculquicondor
	// beta: v1.20
	//
	// Enables the use of PodTopologySpread scheduling plugin to do default
	// spreading and disables legacy SelectorSpread plugin.
	DefaultPodTopologySpread featuregate.Feature = "DefaultPodTopologySpread"

	// owner: @pohly
	// alpha: v1.19
	//
	// Enables generic ephemeral inline volume support for pods
	GenericEphemeralVolume featuregate.Feature = "GenericEphemeralVolume"

	// owner: @chendave
	// alpha: v1.21
	//
	// PreferNominatedNode tells scheduler whether the nominated node will be checked first before looping
	// all the rest of nodes in the cluster.
	// Enabling this feature also implies the preemptor pod might not be dispatched to the best candidate in
	// some corner case, e.g. another node releases enough resources after the nominated node has been set
	// and hence is the best candidate instead.
	PreferNominatedNode featuregate.Feature = "PreferNominatedNode"

	// owner: @tallclair
	// alpha: v1.12
	// beta:  v1.14
	// GA: v1.20
	//
	// Enables RuntimeClass, for selecting between multiple runtimes to run a pod.
	RuntimeClass featuregate.Feature = "RuntimeClass"

	// owner: @mtaufen
	// alpha: v1.12
	// beta:  v1.14
	// GA: v1.17
	//
	// Kubelet uses the new Lease API to report node heartbeats,
	// (Kube) Node Lifecycle Controller uses these heartbeats as a node health signal.
	NodeLease featuregate.Feature = "NodeLease"

	// owner: @janosi
	// alpha: v1.12
	// beta:  v1.18
	// GA:    v1.20
	//
	// Enables SCTP as new protocol for Service ports, NetworkPolicy, and ContainerPort in Pod/Containers definition
	SCTPSupport featuregate.Feature = "SCTPSupport"

	// owner: @xing-yang
	// alpha: v1.12
	// beta: v1.17
	// GA: v1.20
	//
	// Enable volume snapshot data source support.
	VolumeSnapshotDataSource featuregate.Feature = "VolumeSnapshotDataSource"

	// owner: @jessfraz
	// alpha: v1.12
	//
	// Enables control over ProcMountType for containers.
	ProcMountType featuregate.Feature = "ProcMountType"

	// owner: @janetkuo
	// alpha: v1.12
	//
	// Allow TTL controller to clean up Pods and Jobs after they finish.
	TTLAfterFinished featuregate.Feature = "TTLAfterFinished"

	// owner: @dashpole
	// alpha: v1.13
	// beta: v1.15
	//
	// Enables the kubelet's pod resources grpc endpoint
	KubeletPodResources featuregate.Feature = "KubeletPodResources"

	// owner: @davidz627
	// alpha: v1.14
	// beta: v1.17
	//
	// Enables the in-tree storage to CSI Plugin migration feature.
	CSIMigration featuregate.Feature = "CSIMigration"

	// owner: @davidz627
	// alpha: v1.14
	// beta: v1.17
	//
	// Enables the GCE PD in-tree driver to GCE CSI Driver migration feature.
	CSIMigrationGCE featuregate.Feature = "CSIMigrationGCE"

	// owner: @davidz627
	// alpha: v1.17
	//
	// Disables the GCE PD in-tree driver.
	// Expects GCE PD CSI Driver to be installed and configured on all nodes.
	CSIMigrationGCEComplete featuregate.Feature = "CSIMigrationGCEComplete"

	// owner: @leakingtapan
	// alpha: v1.14
	// beta: v1.17
	//
	// Enables the AWS EBS in-tree driver to AWS EBS CSI Driver migration feature.
	CSIMigrationAWS featuregate.Feature = "CSIMigrationAWS"

	// owner: @leakingtapan
	// alpha: v1.17
	//
	// Disables the AWS EBS in-tree driver.
	// Expects AWS EBS CSI Driver to be installed and configured on all nodes.
	CSIMigrationAWSComplete featuregate.Feature = "CSIMigrationAWSComplete"

	// owner: @andyzhangx
	// alpha: v1.15
	// beta: v1.19
	//
	// Enables the Azure Disk in-tree driver to Azure Disk Driver migration feature.
	CSIMigrationAzureDisk featuregate.Feature = "CSIMigrationAzureDisk"

	// owner: @andyzhangx
	// alpha: v1.17
	//
	// Disables the Azure Disk in-tree driver.
	// Expects Azure Disk CSI Driver to be installed and configured on all nodes.
	CSIMigrationAzureDiskComplete featuregate.Feature = "CSIMigrationAzureDiskComplete"

	// owner: @andyzhangx
	// alpha: v1.15
	//
	// Enables the Azure File in-tree driver to Azure File Driver migration feature.
	CSIMigrationAzureFile featuregate.Feature = "CSIMigrationAzureFile"

	// owner: @andyzhangx
	// alpha: v1.17
	//
	// Disables the Azure File in-tree driver.
	// Expects Azure File CSI Driver to be installed and configured on all nodes.
	CSIMigrationAzureFileComplete featuregate.Feature = "CSIMigrationAzureFileComplete"

	// owner: @divyenpatel
	// beta: v1.19 (requires: vSphere vCenter/ESXi Version: 7.0u1, HW Version: VM version 15)
	//
	// Enables the vSphere in-tree driver to vSphere CSI Driver migration feature.
	CSIMigrationvSphere featuregate.Feature = "CSIMigrationvSphere"

	// owner: @divyenpatel
	// beta: v1.19 (requires: vSphere vCenter/ESXi Version: 7.0u1, HW Version: VM version 15)
	//
	// Disables the vSphere in-tree driver.
	// Expects vSphere CSI Driver to be installed and configured on all nodes.
	CSIMigrationvSphereComplete featuregate.Feature = "CSIMigrationvSphereComplete"

	// owner: @huffmanca
	// alpha: v1.19
	// beta: v1.20
	//
	// Determines if a CSI Driver supports applying fsGroup.
	CSIVolumeFSGroupPolicy featuregate.Feature = "CSIVolumeFSGroupPolicy"

	// owner: @gnufied
	// alpha: v1.18
	// beta: v1.20
	// Allows user to configure volume permission change policy for fsGroups when mounting
	// a volume in a Pod.
	ConfigurableFSGroupPolicy featuregate.Feature = "ConfigurableFSGroupPolicy"

	// owner: @RobertKrawitz, @derekwaynecarr
	// beta: v1.15
	// GA: v1.20
	//
	// Implement support for limiting pids in nodes
	SupportNodePidsLimit featuregate.Feature = "SupportNodePidsLimit"

	// owner: @wk8
	// alpha: v1.14
	// beta: v1.16
	//
	// Enables GMSA support for Windows workloads.
	WindowsGMSA featuregate.Feature = "WindowsGMSA"

	// owner: @bclau
	// alpha: v1.16
	// beta: v1.17
	// GA: v1.18
	//
	// Enables support for running container entrypoints as different usernames than their default ones.
	WindowsRunAsUserName featuregate.Feature = "WindowsRunAsUserName"

	// owner: @adisky
	// alpha: v1.14
	// beta: v1.18
	//
	// Enables the OpenStack Cinder in-tree driver to OpenStack Cinder CSI Driver migration feature.
	CSIMigrationOpenStack featuregate.Feature = "CSIMigrationOpenStack"

	// owner: @adisky
	// alpha: v1.17
	//
	// Disables the OpenStack Cinder in-tree driver.
	// Expects the OpenStack Cinder CSI Driver to be installed and configured on all nodes.
	CSIMigrationOpenStackComplete featuregate.Feature = "CSIMigrationOpenStackComplete"

	// owner: @RobertKrawitz
	// alpha: v1.15
	//
	// Allow use of filesystems for ephemeral storage monitoring.
	// Only applies if LocalStorageCapacityIsolation is set.
	LocalStorageCapacityIsolationFSQuotaMonitoring featuregate.Feature = "LocalStorageCapacityIsolationFSQuotaMonitoring"

	// owner: @denkensk
	// alpha: v1.15
	// beta: v1.19
	//
	// Enables NonPreempting option for priorityClass and pod.
	NonPreemptingPriority featuregate.Feature = "NonPreemptingPriority"

	// owner: @egernst
	// alpha: v1.16
	// beta: v1.18
	//
	// Enables PodOverhead, for accounting pod overheads which are specific to a given RuntimeClass
	PodOverhead featuregate.Feature = "PodOverhead"

	// owner: @khenidak
	// alpha: v1.15
	//
	// Enables ipv6 dual stack
	IPv6DualStack featuregate.Feature = "IPv6DualStack"

	// owner: @robscott @freehan
	// alpha: v1.16
	//
	// Enable Endpoint Slices for more scalable Service endpoints.
	EndpointSlice featuregate.Feature = "EndpointSlice"

	// owner: @robscott @freehan
	// alpha: v1.18
	// beta: v1.19
	//
	// Enable Endpoint Slice consumption by kube-proxy for improved scalability.
	EndpointSliceProxying featuregate.Feature = "EndpointSliceProxying"

	// owner: @robscott @kumarvin123
	// alpha: v1.19
	//
	// Enable Endpoint Slice consumption by kube-proxy in Windows for improved scalability.
	WindowsEndpointSliceProxying featuregate.Feature = "WindowsEndpointSliceProxying"

	// owner: @matthyx
	// alpha: v1.16
	// beta: v1.18
	// GA: v1.20
	//
	// Enables the startupProbe in kubelet worker.
	StartupProbe featuregate.Feature = "StartupProbe"

	// owner: @deads2k
	// beta: v1.17
	//
	// Enables the users to skip TLS verification of kubelets on pod logs requests
	AllowInsecureBackendProxy featuregate.Feature = "AllowInsecureBackendProxy"

	// owner: @mortent
	// alpha: v1.3
	// beta:  v1.5
	//
	// Enable all logic related to the PodDisruptionBudget API object in policy
	PodDisruptionBudget featuregate.Feature = "PodDisruptionBudget"

	// owner: @alaypatel07, @soltysh
	// alpha: v1.20
	// beta: v1.21
	//
	// CronJobControllerV2 controls whether the controller manager starts old cronjob
	// controller or new one which is implemented with informers and delaying queue
	//
	// This feature is deprecated, and will be removed in v1.22.
	CronJobControllerV2 featuregate.Feature = "CronJobControllerV2"

	// owner: @smarterclayton
	// alpha: v1.21
	//
	// DaemonSets allow workloads to maintain availability during update per node
	DaemonSetUpdateSurge featuregate.Feature = "DaemonSetUpdateSurge"

	// owner: @m1093782566
	// alpha: v1.17
	//
	// Enables topology aware service routing
	ServiceTopology featuregate.Feature = "ServiceTopology"

	// owner: @robscott
	// alpha: v1.18
	// beta:  v1.19
	// ga:    v1.20
	//
	// Enables AppProtocol field for Services and Endpoints.
	ServiceAppProtocol featuregate.Feature = "ServiceAppProtocol"

	// owner: @wojtek-t
	// alpha: v1.18
	// beta:  v1.19
	// ga:    v1.21
	//
	// Enables a feature to make secrets and configmaps data immutable.
	ImmutableEphemeralVolumes featuregate.Feature = "ImmutableEphemeralVolumes"

	// owner: @bart0sh
	// alpha: v1.18
	// beta: v1.19
	//
	// Enables usage of HugePages-<size> in a volume medium,
	// e.g. emptyDir:
	//        medium: HugePages-1Gi
	HugePageStorageMediumSize featuregate.Feature = "HugePageStorageMediumSize"

	// owner: @derekwaynecarr
	// alpha: v1.20
	//
	// Enables usage of hugepages-<size> in downward API.
	DownwardAPIHugePages featuregate.Feature = "DownwardAPIHugePages"

	// owner: @freehan
	// GA: v1.18
	//
	// Enable ExternalTrafficPolicy for Service ExternalIPs.
	// This is for bug fix #69811
	ExternalPolicyForExternalIP featuregate.Feature = "ExternalPolicyForExternalIP"

	// owner: @bswartz
	// alpha: v1.18
	//
	// Enables usage of any object for volume data source in PVCs
	AnyVolumeDataSource featuregate.Feature = "AnyVolumeDataSource"

	// owner: @javidiaz
	// alpha: v1.19
	// beta: v1.20
	//
	// Allow setting the Fully Qualified Domain Name (FQDN) in the hostname of a Pod. If a Pod does not
	// have FQDN, this feature has no effect.
	SetHostnameAsFQDN featuregate.Feature = "SetHostnameAsFQDN"

	// owner: @ksubrmnn
	// alpha: v1.14
	// beta: v1.20
	//
	// Allows kube-proxy to run in Overlay mode for Windows
	WinOverlay featuregate.Feature = "WinOverlay"

	// owner: @ksubrmnn
	// alpha: v1.14
	//
	// Allows kube-proxy to create DSR loadbalancers for Windows
	WinDSR featuregate.Feature = "WinDSR"

	// owner: @RenaudWasTaken @dashpole
	// alpha: v1.19
	// beta: v1.20
	//
	// Disables Accelerator Metrics Collected by Kubelet
	DisableAcceleratorUsageMetrics featuregate.Feature = "DisableAcceleratorUsageMetrics"

	// owner: @arjunrn @mwielgus @josephburnett
	// alpha: v1.20
	//
	// Add support for the HPA to scale based on metrics from individual containers
	// in target pods
	HPAContainerMetrics featuregate.Feature = "HPAContainerMetrics"

	// owner: @zshihang
	// alpha: v1.13
	// beta: v1.20
	//
	// Allows kube-controller-manager to publish kube-root-ca.crt configmap to
	// every namespace. This feature is a prerequisite of BoundServiceAccountTokenVolume.
	RootCAConfigMap featuregate.Feature = "RootCAConfigMap"

	// owner: @andrewsykim
	// alpha: v1.20
	//
	// Enable Terminating condition in Endpoint Slices.
	EndpointSliceTerminatingCondition featuregate.Feature = "EndpointSliceTerminatingCondition"

	// owner: @robscott
	// alpha: v1.20
	//
	// Enable NodeName field on Endpoint Slices.
	EndpointSliceNodeName featuregate.Feature = "EndpointSliceNodeName"

	// owner: @derekwaynecarr
	// alpha: v1.20
	//
	// Enables kubelet support to size memory backed volumes
	SizeMemoryBackedVolumes featuregate.Feature = "SizeMemoryBackedVolumes"

	// owner: @andrewsykim @SergeyKanzhelev
	// GA: v1.20
	//
	// Ensure kubelet respects exec probe timeouts. Feature gate exists in-case existing workloads
	// may depend on old behavior where exec probe timeouts were ignored.
	// Lock to default in v1.21 and remove in v1.22.
	ExecProbeTimeout featuregate.Feature = "ExecProbeTimeout"

	// owner: @andrewsykim
	// alpha: v1.20
	//
	// Enable kubelet exec plugins for image pull credentials.
	KubeletCredentialProviders featuregate.Feature = "KubeletCredentialProviders"

	// owner: @zshihang
	// alpha: v1.20
	//
	// Enable kubelet to pass pod's service account token to NodePublishVolume
	// call of CSI driver which is mounting volumes for that pod.
	CSIServiceAccountToken featuregate.Feature = "CSIServiceAccountToken"

	// owner: @bobbypage
	// alpha: v1.20
	// Adds support for kubelet to detect node shutdown and gracefully terminate pods prior to the node being shutdown.
	GracefulNodeShutdown featuregate.Feature = "GracefulNodeShutdown"

	// owner: @andrewsykim @uablrek
	// alpha: v1.20
	//
	// Allows control if NodePorts shall be created for services with "type: LoadBalancer" by defining the spec.AllocateLoadBalancerNodePorts field (bool)
	ServiceLBNodePortControl featuregate.Feature = "ServiceLBNodePortControl"

	// owner: @janosi
	// alpha: v1.20
	//
	// Enables the usage of different protocols in the same Service with type=LoadBalancer
	MixedProtocolLBService featuregate.Feature = "MixedProtocolLBService"
)