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GenericEphemeralVolume: feature gate, API, documentation

Browse Source 
As explained in
https://github.com/kubernetes/enhancements/tree/master/keps/sig-storage/1698-generic-ephemeral-volumes,
CSI inline volumes are not suitable for more "normal" kinds of storage
systems. For those a new approach is needed: "generic ephemeral inline
volumes".
This commit is contained in:
Patrick Ohly
2020-05-26 21:32:36 +02:00
parent 896da2253c
commit c05c8e915b
15 changed files with 743 additions and 151 deletions
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11
pkg/api/pod/util.go
View File

@@ -431,6 +431,7 @@ func dropDisabledFields(
dropDisabledProcMountField(podSpec, oldPodSpec)
dropDisabledCSIVolumeSourceAlphaFields(podSpec, oldPodSpec)
dropDisabledEphemeralVolumeSourceAlphaFields(podSpec, oldPodSpec)
if !utilfeature.DefaultFeatureGate.Enabled(features.NonPreemptingPriority) &&
!podPriorityInUse(oldPodSpec) {
@@ -499,6 +500,16 @@ func dropDisabledCSIVolumeSourceAlphaFields(podSpec, oldPodSpec *api.PodSpec) {
}
}
// dropDisabledEphemeralVolumeSourceAlphaFields removes disabled alpha fields from []EphemeralVolumeSource.
// This should be called from PrepareForCreate/PrepareForUpdate for all pod specs resources containing a EphemeralVolumeSource
func dropDisabledEphemeralVolumeSourceAlphaFields(podSpec, oldPodSpec *api.PodSpec) {
if !utilfeature.DefaultFeatureGate.Enabled(features.GenericEphemeralVolume) && !csiInUse(oldPodSpec) {
for i := range podSpec.Volumes {
podSpec.Volumes[i].Ephemeral = nil
}
}
}
func ephemeralContainersInUse(podSpec *api.PodSpec) bool {
if podSpec == nil {
return false

2
pkg/api/testing/backward_compatibility_test.go
View File

@@ -159,7 +159,7 @@ func TestCompatibility_v1_PodSecurityContext(t *testing.T) {
}
validator := func(obj runtime.Object) field.ErrorList {
return validation.ValidatePodSpec(&(obj.(*api.Pod).Spec), field.NewPath("spec"))
return validation.ValidatePodSpec(&(obj.(*api.Pod).Spec), &(obj.(*api.Pod).ObjectMeta), field.NewPath("spec"))
}
for _, tc := range cases {