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Validation on RunAsGroup - Update DropDisabled[Alpha]Fields behaviour

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This commit is contained in:
Zheng Dayu 2018-12-27 14:38:08 +08:00
parent 13e59ab9ad
commit d4c85e977f
2 changed files with 24 additions and 21 deletions
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40
pkg/api/pod/util.go
View File

@ -279,7 +279,7 @@ func DropDisabledFields(podSpec, oldPodSpec *api.PodSpec) {
// dropDisabledRunAsGroupField removes disabled fields from PodSpec related
// to RunAsGroup
func dropDisabledRunAsGroupField(podSpec, oldPodSpec *api.PodSpec) {
if !utilfeature.DefaultFeatureGate.Enabled(features.RunAsGroup) {
if !utilfeature.DefaultFeatureGate.Enabled(features.RunAsGroup) && !runAsGroupInUse(oldPodSpec) {
if podSpec.SecurityContext != nil {
podSpec.SecurityContext.RunAsGroup = nil
}
@ -293,22 +293,6 @@ func dropDisabledRunAsGroupField(podSpec, oldPodSpec *api.PodSpec) {
podSpec.InitContainers[i].SecurityContext.RunAsGroup = nil
}
}
if oldPodSpec != nil {
if oldPodSpec.SecurityContext != nil {
oldPodSpec.SecurityContext.RunAsGroup = nil
}
for i := range oldPodSpec.Containers {
if oldPodSpec.Containers[i].SecurityContext != nil {
oldPodSpec.Containers[i].SecurityContext.RunAsGroup = nil
}
}
for i := range oldPodSpec.InitContainers {
if oldPodSpec.InitContainers[i].SecurityContext != nil {
oldPodSpec.InitContainers[i].SecurityContext.RunAsGroup = nil
}
}
}
}
}
@ -445,3 +429,25 @@ func volumeDevicesInUse(podSpec *api.PodSpec) bool {
}
return false
}
// runAsGroupInUse returns true if the pod spec is non-nil and has a SecurityContext's RunAsGroup field set
func runAsGroupInUse(podSpec *api.PodSpec) bool {
if podSpec == nil {
return false
}
if podSpec.SecurityContext != nil && podSpec.SecurityContext.RunAsGroup != nil {
return true
}
for i := range podSpec.Containers {
if podSpec.Containers[i].SecurityContext != nil && podSpec.Containers[i].SecurityContext.RunAsGroup != nil {
return true
}
}
for i := range podSpec.InitContainers {
if podSpec.InitContainers[i].SecurityContext != nil && podSpec.InitContainers[i].SecurityContext.RunAsGroup != nil {
return true
}
}
return false
}

5
pkg/api/podsecuritypolicy/util.go
View File

@ -28,11 +28,8 @@ func DropDisabledFields(pspSpec, oldPSPSpec *policy.PodSecurityPolicySpec) {
if !utilfeature.DefaultFeatureGate.Enabled(features.ProcMountType) && !allowedProcMountTypesInUse(oldPSPSpec) {
pspSpec.AllowedProcMountTypes = nil
}
if !utilfeature.DefaultFeatureGate.Enabled(features.RunAsGroup) {
if !utilfeature.DefaultFeatureGate.Enabled(features.RunAsGroup) && (oldPSPSpec == nil || oldPSPSpec.RunAsGroup == nil) {
pspSpec.RunAsGroup = nil
if oldPSPSpec != nil {
oldPSPSpec.RunAsGroup = nil
}
}
}