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Update the kubelet to ignore syncing Pods until the container runtime is up.

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(cherry picked from commit 51fb753e11)
This commit is contained in:
Brendan Burns 2015-06-17 22:34:11 -07:00
parent 7dd692cc72
commit 311a58f1ad
1 changed files with 12 additions and 5 deletions
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17
pkg/kubelet/kubelet.go
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@ -1615,6 +1615,11 @@ func (kl *Kubelet) admitPods(allPods []*api.Pod, podSyncTypes map[types.UID]metr
func (kl *Kubelet) syncLoop(updates <-chan PodUpdate, handler SyncHandler) {
glog.Info("Starting kubelet main sync loop.")
for {
if !kl.containerRuntimeUp() {
time.Sleep(5 * time.Second)
glog.Infof("Skipping pod synchronization, container runtime is not up.")
continue
}
unsyncedPod := false
podSyncTypes := make(map[types.UID]metrics.SyncPodType)
select {
@ -1875,11 +1880,7 @@ func (kl *Kubelet) setNodeStatus(node *api.Node) error {
}
// Check whether container runtime can be reported as up.
containerRuntimeUp := func() bool {
kl.runtimeMutex.Lock()
defer kl.runtimeMutex.Unlock()
return kl.lastTimestampRuntimeUp.Add(kl.runtimeUpThreshold).After(time.Now())
}()
containerRuntimeUp := kl.containerRuntimeUp()
currentTime := util.Now()
var newNodeReadyCondition api.NodeCondition
@ -1942,6 +1943,12 @@ func (kl *Kubelet) setNodeStatus(node *api.Node) error {
return nil
}
func (kl *Kubelet) containerRuntimeUp() bool {
kl.runtimeMutex.Lock()
defer kl.runtimeMutex.Unlock()
return kl.lastTimestampRuntimeUp.Add(kl.runtimeUpThreshold).After(time.Now())
}
// tryUpdateNodeStatus tries to update node status to master. If ReconcileCBR0
// is set, this function will also confirm that cbr0 is configured correctly.
func (kl *Kubelet) tryUpdateNodeStatus() error {