// Admit rejects a pod if its not safe to admit for node stability.
func (m *managerImpl) Admit(attrs *lifecycle.PodAdmitAttributes) lifecycle.PodAdmitResult {
m.RLock()
defer m.RUnlock()
if len(m.nodeConditions) == 0 {
return lifecycle.PodAdmitResult{Admit: true}
}
notBestEffort := qos.BestEffort != qos.GetPodQOS(attrs.Pod)
if notBestEffort {
return lifecycle.PodAdmitResult{Admit: true}
}
glog.Warningf("Failed to admit pod %v - %s", format.Pod(attrs.Pod), "node has conditions: %v", m.nodeConditions)
// we reject all best effort pods until we are stable.
return lifecycle.PodAdmitResult{
Admit: false,
Reason: reason,
Message: message,
}
}
func isBestEffort(pod *api.Pod) bool {
return qos.GetPodQOS(pod) == qos.BestEffort
}