Merge pull request #59449 from aveshagarwal/master-rhbz-1540822

Automatic merge from submit-queue (batch tested with PRs 58444, 59283, 59437, 59325, 59449). 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>.

Fix to register priority function ResourceLimitsPriority correctly.

**What this PR does / why we need it**:
This PR fixes registration of priority function ResourceLimitsPriority.  Previously this function was being registered inside `init()`. Since this priority function ResourceLimitsPriority is behind feature gate `ResourceLimitsPriorityFunction` and if the feature is enabled, it was not visible in `init()` function. So now the registration of this priority function is moved inside `ApplyFeatureGates()` in scheduler where it can be correctly registered after the feature has been enabled.


**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 #

**Special notes for your reviewer**:

**Release note**:

```release-note

None
```

@kubernetes/sig-scheduling-pr-reviews @bsalamat @ravisantoshgudimetla
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Kubernetes Submit Queue 2018-02-06 22:42:45 -08:00 committed by GitHub
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@ -107,10 +107,6 @@ func init() {
factory.RegisterPriorityFunction2("ImageLocalityPriority", priorities.ImageLocalityPriorityMap, nil, 1)
// Optional, cluster-autoscaler friendly priority function - give used nodes higher priority.
factory.RegisterPriorityFunction2("MostRequestedPriority", priorities.MostRequestedPriorityMap, nil, 1)
// Prioritizes nodes that satisfy pod's resource limits
if utilfeature.DefaultFeatureGate.Enabled(features.ResourceLimitsPriorityFunction) {
factory.RegisterPriorityFunction2("ResourceLimitsPriority", priorities.ResourceLimitsPriorityMap, nil, 1)
}
}
func defaultPredicates() sets.String {
@ -182,7 +178,6 @@ func defaultPredicates() sets.String {
// ApplyFeatureGates applies algorithm by feature gates.
func ApplyFeatureGates() {
if utilfeature.DefaultFeatureGate.Enabled(features.TaintNodesByCondition) {
// Remove "CheckNodeCondition" predicate
factory.RemoveFitPredicate(predicates.CheckNodeConditionPred)
@ -200,6 +195,12 @@ func ApplyFeatureGates() {
glog.Warningf("TaintNodesByCondition is enabled, PodToleratesNodeTaints predicate is mandatory")
}
// Prioritizes nodes that satisfy pod's resource limits
if utilfeature.DefaultFeatureGate.Enabled(features.ResourceLimitsPriorityFunction) {
factory.RegisterPriorityFunction2("ResourceLimitsPriority", priorities.ResourceLimitsPriorityMap, nil, 1)
}
}
func registerAlgorithmProvider(predSet, priSet sets.String) {