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Avoid evicting critical pods in Kubelet if a special feature gate is enabled

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Signed-off-by: Vishnu Kannan <vishnuk@google.com>
This commit is contained in:
Vishnu Kannan
2017-01-28 14:48:35 -08:00
committed by Vishnu kannan
parent f85bbcb78d
commit c967ab7b99
10 changed files with 227 additions and 64 deletions
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8
pkg/features/kube_features.go
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@@ -58,6 +58,13 @@ const (
// 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 utilfeature.Feature = "ExperimentalHostUserNamespaceDefaulting"
// owner: @vishh
// alpha: v1.5
//
// Ensures guaranteed scheduling of pods marked with a special pod annotation `scheduler.alpha.kubernetes.io/critical-pod`
// and also prevents them from being evicted from a node.
ExperimentalCriticalPodAnnotation utilfeature.Feature = "ExperimentalCriticalPodAnnotation"
)
func init() {
@@ -73,6 +80,7 @@ var defaultKubernetesFeatureGates = map[utilfeature.Feature]utilfeature.FeatureS
DynamicKubeletConfig: {Default: false, PreRelease: utilfeature.Alpha},
DynamicVolumeProvisioning: {Default: true, PreRelease: utilfeature.Alpha},
ExperimentalHostUserNamespaceDefaultingGate: {Default: false, PreRelease: utilfeature.Beta},
ExperimentalCriticalPodAnnotation: {Default: false, PreRelease: utilfeature.Alpha},
// inherited features from generic apiserver, relisted here to get a conflict if it is changed
// unintentionally on either side: