mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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485 lines
19 KiB
Go
485 lines
19 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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genericfeatures "k8s.io/apiserver/pkg/features"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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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 utilfeature.Feature = "MyFeature"
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// owner: @tallclair
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// beta: v1.4
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AppArmor utilfeature.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 utilfeature.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 utilfeature.Feature = "ExperimentalHostUserNamespaceDefaulting"
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// owner: @vishh
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// alpha: v1.5
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//
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// Ensures guaranteed scheduling of pods marked with a special pod annotation `scheduler.alpha.kubernetes.io/critical-pod`
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// and also prevents them from being evicted from a node.
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// Note: This feature is not supported for `BestEffort` pods.
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ExperimentalCriticalPodAnnotation utilfeature.Feature = "ExperimentalCriticalPodAnnotation"
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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 utilfeature.Feature = "DevicePlugins"
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// owner: @gmarek
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// alpha: v1.6
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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 utilfeature.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 utilfeature.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 utilfeature.Feature = "RotateKubeletClientCertificate"
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// owner: @msau42
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// alpha: v1.7
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//
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// A new volume type that supports local disks on a node.
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PersistentLocalVolumes utilfeature.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 utilfeature.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 utilfeature.Feature = "ExpandPersistentVolumes"
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// owner: @mlmhl
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// alpha: v1.11
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// Ability to expand persistent volumes' file system without unmounting volumes.
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ExpandInUsePersistentVolumes utilfeature.Feature = "ExpandInUsePersistentVolumes"
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// owner: @verb
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// alpha: v1.10
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//
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// Allows running a "debug container" in a pod namespaces to troubleshoot a running pod.
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DebugContainers utilfeature.Feature = "DebugContainers"
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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 utilfeature.Feature = "PodShareProcessNamespace"
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// owner: @bsalamat
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// alpha: v1.8
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//
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// Add priority to pods. Priority affects scheduling and preemption of pods.
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PodPriority utilfeature.Feature = "PodPriority"
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// owner: @resouer
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// alpha: v1.8
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//
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// Enable equivalence class cache for scheduler.
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EnableEquivalenceClassCache utilfeature.Feature = "EnableEquivalenceClassCache"
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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', 'OutOfDisk' and 'DiskPressure'.
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TaintNodesByCondition utilfeature.Feature = "TaintNodesByCondition"
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// owner: @jsafrane
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// GA: v1.12
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//
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// Enable mount propagation of volumes.
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MountPropagation utilfeature.Feature = "MountPropagation"
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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 utilfeature.Feature = "QOSReserved"
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// owner: @ConnorDoyle
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// alpha: v1.8
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//
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// Alternative container-level CPU affinity policies.
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CPUManager utilfeature.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 utilfeature.Feature = "CustomCPUCFSQuotaPeriod"
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// owner: @derekwaynecarr
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// beta: v1.10
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//
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// Enable pods to consume pre-allocated huge pages of varying page sizes
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HugePages utilfeature.Feature = "HugePages"
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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 utilfeature.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 utilfeature.Feature = "ServiceNodeExclusion"
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// owner @brendandburns
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// deprecated: v1.10
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//
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// Enable the service proxy to contact external IP addresses. Note this feature is present
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// only for backward compatibility, it will be removed in the 1.11 release.
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ServiceProxyAllowExternalIPs utilfeature.Feature = "ServiceProxyAllowExternalIPs"
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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 utilfeature.Feature = "MountContainers"
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// owner: @msau42
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// alpha: v1.9
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//
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// Extend the default scheduler to be aware of PV topology and handle PV binding
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// Before moving to beta, resolve Kubernetes issue #56180
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VolumeScheduling utilfeature.Feature = "VolumeScheduling"
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// owner: @vladimirvivien
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// beta: v1.10
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//
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// Enable mount/attachment of Container Storage Interface (CSI) backed PVs
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CSIPersistentVolume utilfeature.Feature = "CSIPersistentVolume"
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// owner: @saad-ali
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// alpha: v1.12
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// Enable automatic installation of CRD for csi.storage.k8s.io API objects.
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CSICRDAutoInstall utilfeature.Feature = "CSICRDAutoInstall"
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// owner @MrHohn
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// beta: v1.10
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//
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// Support configurable pod DNS parameters.
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CustomPodDNS utilfeature.Feature = "CustomPodDNS"
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// owner: @screeley44
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// alpha: v1.9
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//
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// Enable Block volume support in containers.
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BlockVolume utilfeature.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 utilfeature.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 utilfeature.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 utilfeature.Feature = "SupportIPVSProxyMode"
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// owner: @dims
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// alpha: v1.10
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//
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// Implement support for limiting pids in pods
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SupportPodPidsLimit utilfeature.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 utilfeature.Feature = "HyperVContainer"
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// owner: @joelsmith
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// deprecated: v1.10
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//
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// Mount secret, configMap, downwardAPI and projected volumes ReadOnly. Note: this feature
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// gate is present only for backward compatibility, it will be removed in the 1.11 release.
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ReadOnlyAPIDataVolumes utilfeature.Feature = "ReadOnlyAPIDataVolumes"
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// owner: @k82cn
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// alpha: v1.10
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//
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// Schedule DaemonSet Pods by default scheduler instead of DaemonSet controller
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ScheduleDaemonSetPods utilfeature.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 utilfeature.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 utilfeature.Feature = "TokenRequestProjection"
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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 utilfeature.Feature = "CRIContainerLogRotation"
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// owner: @verult
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// beta: v1.10
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//
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// Enables the regional PD feature on GCE.
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GCERegionalPersistentDisk utilfeature.Feature = "GCERegionalPersistentDisk"
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// owner: @krmayankk
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// alpha: v1.10
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//
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// Enables control over the primary group ID of containers' init processes.
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RunAsGroup utilfeature.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 utilfeature.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 utilfeature.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 utilfeature.Feature = "BalanceAttachedNodeVolumes"
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// owner @freehan
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// beta: v1.11
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//
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// Support Pod Ready++
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PodReadinessGates utilfeature.Feature = "PodReadinessGates"
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// owner: @kevtaylor
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// alpha: v1.11
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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 utilfeature.Feature = "VolumeSubpathEnvExpansion"
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// owner: @vikaschoudhary16
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// alpha: v1.11
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//
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//
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// Enable probe based plugin watcher utility for discovering Kubelet plugins
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KubeletPluginsWatcher utilfeature.Feature = "KubeletPluginsWatcher"
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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 utilfeature.Feature = "ResourceQuotaScopeSelectors"
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// owner: @vladimirvivien
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// alpha: v1.11
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//
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// Enables CSI to use raw block storage volumes
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CSIBlockVolume utilfeature.Feature = "CSIBlockVolume"
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// owner: @tallclair
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// alpha: v1.12
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//
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// Enables RuntimeClass, for selecting between multiple runtimes to run a pod.
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RuntimeClass utilfeature.Feature = "RuntimeClass"
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// owner: @mtaufen
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// alpha: v1.12
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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 utilfeature.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 utilfeature.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 utilfeature.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 utilfeature.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 utilfeature.Feature = "TTLAfterFinished"
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// owner: @jsafrane
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// Kubernetes skips attaching CSI volumes that don't require attachment.
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//
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CSISkipAttach utilfeature.Feature = "CSISkipAttach"
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// owner: @jsafrane
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//
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// Kubelet sends pod information in NodePublish CSI call when a CSI driver wants so.
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CSIPodInfo utilfeature.Feature = "CSIPodInfo"
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)
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func init() {
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utilfeature.DefaultFeatureGate.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[utilfeature.Feature]utilfeature.FeatureSpec{
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AppArmor: {Default: true, PreRelease: utilfeature.Beta},
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DynamicKubeletConfig: {Default: true, PreRelease: utilfeature.Beta},
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ExperimentalHostUserNamespaceDefaultingGate: {Default: false, PreRelease: utilfeature.Beta},
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ExperimentalCriticalPodAnnotation: {Default: false, PreRelease: utilfeature.Alpha},
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DevicePlugins: {Default: true, PreRelease: utilfeature.Beta},
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TaintBasedEvictions: {Default: false, PreRelease: utilfeature.Alpha},
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RotateKubeletServerCertificate: {Default: true, PreRelease: utilfeature.Beta},
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RotateKubeletClientCertificate: {Default: true, PreRelease: utilfeature.Beta},
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PersistentLocalVolumes: {Default: true, PreRelease: utilfeature.Beta},
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LocalStorageCapacityIsolation: {Default: true, PreRelease: utilfeature.Beta},
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HugePages: {Default: true, PreRelease: utilfeature.Beta},
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Sysctls: {Default: true, PreRelease: utilfeature.Beta},
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DebugContainers: {Default: false, PreRelease: utilfeature.Alpha},
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PodShareProcessNamespace: {Default: true, PreRelease: utilfeature.Beta},
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PodPriority: {Default: true, PreRelease: utilfeature.Beta},
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EnableEquivalenceClassCache: {Default: false, PreRelease: utilfeature.Alpha},
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TaintNodesByCondition: {Default: true, PreRelease: utilfeature.Beta},
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MountPropagation: {Default: true, PreRelease: utilfeature.GA},
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QOSReserved: {Default: false, PreRelease: utilfeature.Alpha},
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ExpandPersistentVolumes: {Default: true, PreRelease: utilfeature.Beta},
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ExpandInUsePersistentVolumes: {Default: false, PreRelease: utilfeature.Alpha},
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AttachVolumeLimit: {Default: false, PreRelease: utilfeature.Beta},
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CPUManager: {Default: true, PreRelease: utilfeature.Beta},
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CPUCFSQuotaPeriod: {Default: false, PreRelease: utilfeature.Alpha},
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ServiceNodeExclusion: {Default: false, PreRelease: utilfeature.Alpha},
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MountContainers: {Default: false, PreRelease: utilfeature.Alpha},
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VolumeScheduling: {Default: true, PreRelease: utilfeature.Beta},
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CSIPersistentVolume: {Default: true, PreRelease: utilfeature.Beta},
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CSICRDAutoInstall: {Default: false, PreRelease: utilfeature.Alpha},
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CustomPodDNS: {Default: true, PreRelease: utilfeature.Beta},
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BlockVolume: {Default: false, PreRelease: utilfeature.Alpha},
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StorageObjectInUseProtection: {Default: true, PreRelease: utilfeature.GA},
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ResourceLimitsPriorityFunction: {Default: false, PreRelease: utilfeature.Alpha},
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SupportIPVSProxyMode: {Default: true, PreRelease: utilfeature.GA},
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SupportPodPidsLimit: {Default: false, PreRelease: utilfeature.Alpha},
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HyperVContainer: {Default: false, PreRelease: utilfeature.Alpha},
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ScheduleDaemonSetPods: {Default: false, PreRelease: utilfeature.Alpha},
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TokenRequest: {Default: true, PreRelease: utilfeature.Beta},
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TokenRequestProjection: {Default: true, PreRelease: utilfeature.Beta},
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CRIContainerLogRotation: {Default: true, PreRelease: utilfeature.Beta},
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GCERegionalPersistentDisk: {Default: true, PreRelease: utilfeature.Beta},
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RunAsGroup: {Default: false, PreRelease: utilfeature.Alpha},
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VolumeSubpath: {Default: true, PreRelease: utilfeature.GA},
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BalanceAttachedNodeVolumes: {Default: false, PreRelease: utilfeature.Alpha},
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PodReadinessGates: {Default: true, PreRelease: utilfeature.Beta},
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VolumeSubpathEnvExpansion: {Default: false, PreRelease: utilfeature.Alpha},
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KubeletPluginsWatcher: {Default: true, PreRelease: utilfeature.Beta},
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ResourceQuotaScopeSelectors: {Default: true, PreRelease: utilfeature.Beta},
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CSIBlockVolume: {Default: false, PreRelease: utilfeature.Alpha},
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RuntimeClass: {Default: false, PreRelease: utilfeature.Alpha},
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NodeLease: {Default: false, PreRelease: utilfeature.Alpha},
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SCTPSupport: {Default: false, PreRelease: utilfeature.Alpha},
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VolumeSnapshotDataSource: {Default: false, PreRelease: utilfeature.Alpha},
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ProcMountType: {Default: false, PreRelease: utilfeature.Alpha},
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TTLAfterFinished: {Default: false, PreRelease: utilfeature.Alpha},
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CSISkipAttach: {Default: false, PreRelease: utilfeature.Alpha},
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CSIPodInfo: {Default: false, PreRelease: utilfeature.Alpha},
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// inherited features from generic apiserver, relisted here to get a conflict if it is changed
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// unintentionally on either side:
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genericfeatures.StreamingProxyRedirects: {Default: true, PreRelease: utilfeature.Beta},
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genericfeatures.AdvancedAuditing: {Default: true, PreRelease: utilfeature.GA},
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genericfeatures.APIResponseCompression: {Default: false, PreRelease: utilfeature.Alpha},
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genericfeatures.Initializers: {Default: false, PreRelease: utilfeature.Alpha},
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genericfeatures.APIListChunking: {Default: true, PreRelease: utilfeature.Beta},
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genericfeatures.DryRun: {Default: false, PreRelease: utilfeature.Alpha},
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// inherited features from apiextensions-apiserver, relisted here to get a conflict if it is changed
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// unintentionally on either side:
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apiextensionsfeatures.CustomResourceValidation: {Default: true, PreRelease: utilfeature.Beta},
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apiextensionsfeatures.CustomResourceSubresources: {Default: true, PreRelease: utilfeature.Beta},
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// features that enable backwards compatibility but are scheduled to be removed
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ServiceProxyAllowExternalIPs: {Default: false, PreRelease: utilfeature.Deprecated},
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ReadOnlyAPIDataVolumes: {Default: true, PreRelease: utilfeature.Deprecated},
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}
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