func tolerationsToleratesTaints(tolerations []api.Toleration, taints []api.Taint) bool {
// If the taint list is nil/empty, it is tolerated by all tolerations by default.
if len(taints) == 0 {
return true
}
// The taint list isn't nil/empty, a nil/empty toleration list can't tolerate them.
if len(tolerations) == 0 {
return false
}
for i := range taints {
taint := &taints[i]
// skip taints that have effect PreferNoSchedule, since it is for priorities
if taint.Effect == api.TaintEffectPreferNoSchedule {
continue
}
if !api.TaintToleratedByTolerations(taint, tolerations) {
return false
}
}
return true
}
// CountIntolerableTaintsPreferNoSchedule gives the count of intolerable taints of a pod with effect PreferNoSchedule
func countIntolerableTaintsPreferNoSchedule(taints []api.Taint, tolerations []api.Toleration) (intolerableTaints int) {
for _, taint := range taints {
// check only on taints that have effect PreferNoSchedule
if taint.Effect != api.TaintEffectPreferNoSchedule {
continue
}
if !api.TaintToleratedByTolerations(taint, tolerations) {
intolerableTaints++
}
}
return
}