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not calculate new priority when user update pods

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motivation of this change:
If we update the priority, pod validation mechanism will prevent this update
request, this is not expected.
This commit is contained in:
Cao Shufeng 2017-11-10 15:45:38 +08:00
parent 687c8d3297
commit 1440949dc6
1 changed files with 2 additions and 2 deletions
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4
plugin/pkg/admission/priority/admission.go
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@ -105,6 +105,7 @@ var (
) )
// Admit checks Pods and admits or rejects them. It also resolves the priority of pods based on their PriorityClass. // Admit checks Pods and admits or rejects them. It also resolves the priority of pods based on their PriorityClass.
// Note that pod validation mechanism prevents update of a pod priority.
func (p *PriorityPlugin) Admit(a admission.Attributes) error { func (p *PriorityPlugin) Admit(a admission.Attributes) error {
operation := a.GetOperation() operation := a.GetOperation()
// Ignore all calls to subresources // Ignore all calls to subresources
@ -114,7 +115,7 @@ func (p *PriorityPlugin) Admit(a admission.Attributes) error {
switch a.GetResource().GroupResource() { switch a.GetResource().GroupResource() {
case podResource: case podResource:
if operation == admission.Create || operation == admission.Update { if operation == admission.Create {
return p.admitPod(a) return p.admitPod(a)
} }
return nil return nil
@ -149,7 +150,6 @@ func (p *PriorityPlugin) Validate(a admission.Attributes) error {
} }
// admitPod makes sure a new pod does not set spec.Priority field. It also makes sure that the PriorityClassName exists if it is provided and resolves the pod priority from the PriorityClassName. // admitPod makes sure a new pod does not set spec.Priority field. It also makes sure that the PriorityClassName exists if it is provided and resolves the pod priority from the PriorityClassName.
// Note that pod validation mechanism prevents update of a pod priority.
func (p *PriorityPlugin) admitPod(a admission.Attributes) error { func (p *PriorityPlugin) admitPod(a admission.Attributes) error {
operation := a.GetOperation() operation := a.GetOperation()
pod, ok := a.GetObject().(*api.Pod) pod, ok := a.GetObject().(*api.Pod)