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Merge pull request #36060 from resouer/fix-service-affinity

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Add use case to service affinity

Also part of nits in refactoring predicates, I found the explanation of `serviceaffinity` in its comment is very hard to understand. So I added example instead here to help user/developer to digest it.
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Kubernetes Submit Queue 2016-12-15 04:10:08 -08:00 committed by GitHub
commit 59ad9a30ca
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5
plugin/pkg/scheduler/algorithm/predicates/predicates.go
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@ -737,6 +737,11 @@ func NewServiceAffinityPredicate(podLister algorithm.PodLister, serviceLister al
// the same service are running on nodes with
// the exact same ServiceAffinity.label values).
//
// For example:
// If the first pod of a service was scheduled to a node with label "region=foo",
// all the other subsequent pods belong to the same service will be schedule on
// nodes with the same "region=foo" label.
//
// Details:
//
// If (the svc affinity labels are not a subset of pod's label selectors )