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Reconcile NoExecute Taint

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This commit is contained in:
kaiyuechen
2020-03-11 23:34:53 +08:00
parent cb38560422
commit b3637c9670
3 changed files with 40 additions and 3 deletions
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18
pkg/controller/nodelifecycle/node_lifecycle_controller.go
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@@ -872,7 +872,7 @@ func (nc *Controller) processTaintBaseEviction(node *v1.Node, observedReadyCondi
if !nodeutil.SwapNodeControllerTaint(nc.kubeClient, []*v1.Taint{&taintToAdd}, []*v1.Taint{UnreachableTaintTemplate}, node) {
klog.Errorf("Failed to instantly swap UnreachableTaint to NotReadyTaint. Will try again in the next cycle.")
}
} else if nc.markNodeForTainting(node) {
} else if nc.markNodeForTainting(node, v1.ConditionFalse) {
klog.V(2).Infof("Node %v is NotReady as of %v. Adding it to the Taint queue.",
node.Name,
decisionTimestamp,
@@ -885,7 +885,7 @@ func (nc *Controller) processTaintBaseEviction(node *v1.Node, observedReadyCondi
if !nodeutil.SwapNodeControllerTaint(nc.kubeClient, []*v1.Taint{&taintToAdd}, []*v1.Taint{NotReadyTaintTemplate}, node) {
klog.Errorf("Failed to instantly swap NotReadyTaint to UnreachableTaint. Will try again in the next cycle.")
}
} else if nc.markNodeForTainting(node) {
} else if nc.markNodeForTainting(node, v1.ConditionUnknown) {
klog.V(2).Infof("Node %v is unresponsive as of %v. Adding it to the Taint queue.",
node.Name,
decisionTimestamp,
@@ -1476,9 +1476,21 @@ func (nc *Controller) evictPods(node *v1.Node, pods []*v1.Pod) (bool, error) {
return nc.zonePodEvictor[utilnode.GetZoneKey(node)].Add(node.Name, string(node.UID)), nil
}
func (nc *Controller) markNodeForTainting(node *v1.Node) bool {
func (nc *Controller) markNodeForTainting(node *v1.Node, status v1.ConditionStatus) bool {
nc.evictorLock.Lock()
defer nc.evictorLock.Unlock()
if status == v1.ConditionFalse {
if !taintutils.TaintExists(node.Spec.Taints, NotReadyTaintTemplate) {
nc.zoneNoExecuteTainter[utilnode.GetZoneKey(node)].SetRemove(node.Name)
}
}
if status == v1.ConditionUnknown {
if !taintutils.TaintExists(node.Spec.Taints, UnreachableTaintTemplate) {
nc.zoneNoExecuteTainter[utilnode.GetZoneKey(node)].SetRemove(node.Name)
}
}
return nc.zoneNoExecuteTainter[utilnode.GetZoneKey(node)].Add(node.Name, string(node.UID))
}