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Merge pull request #59991 from bsalamat/default_pc

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Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Pick the PriorityClass with the lowest value of priority in case more than one global default exists

**What this PR does / why we need it**:
Please see the referenced issue.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #59987

**Special notes for your reviewer**:

**Release note**:

```release-note
Priority admission controller picks a global default with the lowest priority value if more than one such default PriorityClass exists.
```

/sig scheduling
cc/ @liggitt
This commit is contained in:
Kubernetes Submit Queue
2018-02-21 13:52:00 -08:00
committed by GitHub
parent e8dd75f37d af0d7459a7
commit 2a604f6358
9 changed files with 29 additions and 7 deletions
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5
pkg/apis/scheduling/types.go
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@@ -44,8 +44,11 @@ type PriorityClass struct {
// receive when they have the name of this class in their pod spec.
Value int32
// GlobalDefault specifies whether this PriorityClass should be considered as
// globalDefault specifies whether this PriorityClass should be considered as
// the default priority for pods that do not have any priority class.
// Only one PriorityClass can be marked as `globalDefault`. However, if more than
// one PriorityClasses exists with their `globalDefault` field set to true,
// the smallest value of such global default PriorityClasses will be used as the default priority.
// +optional
GlobalDefault bool