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Added a more formal comment for the service affinity predicate

pull/6/head
Abhishek Gupta 2015-01-07 22:18:22 -08:00
parent 6fd0b181e3
commit 40df5f6db8
1 changed files with 5 additions and 0 deletions
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5
pkg/scheduler/predicates.go
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@ -231,6 +231,11 @@ func NewServiceAffinityPredicate(podLister PodLister, serviceLister ServiceListe
// The set of labels to be considered are provided to the struct (ServiceAffinity).
// The pod is checked for the labels and any missing labels are then checked in the minion
// that hosts the service pods (peers) for the given pod.
//
// We add an implicit selector requiring some particular value V for label L to a pod, if:
// - L is listed in the ServiceAffinity object that is passed into the function
// - the pod does not have any NodeSelector for L
// - some other pod from the same service is already scheduled onto a minion that has value V for label L
func (s *ServiceAffinity) CheckServiceAffinity(pod api.Pod, existingPods []api.Pod, node string) (bool, error) {
var affinitySelector labels.Selector