Merge pull request kubernetes#124430 from AllenXu93/fix-kubelet-restart-notReady

fix node notReady in first sync period after kubelet restart

Author: k8s-ci-robot

pkg/kubelet/kubelet.go

@@ -1660,7 +1660,13 @@ func (kl *Kubelet) Run(updates <-chan kubetypes.PodUpdate) {
 		// Introduce some small jittering to ensure that over time the requests won't start
 		// accumulating at approximately the same time from the set of nodes due to priority and
 		// fairness effect.
-		go wait.JitterUntil(kl.syncNodeStatus, kl.nodeStatusUpdateFrequency, 0.04, true, wait.NeverStop)
+		go func() {
+			// Call updateRuntimeUp once before syncNodeStatus to make sure kubelet had already checked runtime state
+			// otherwise when restart kubelet, syncNodeStatus will report node notReady in first report period
+			kl.updateRuntimeUp()
+			wait.JitterUntil(kl.syncNodeStatus, kl.nodeStatusUpdateFrequency, 0.04, true, wait.NeverStop)
+		}()
+
 		go kl.fastStatusUpdateOnce()
 
 		// start syncing lease