Azure AKS: Find out why node was restarted

Question

From time to time a node gets restarted in ou Azure Kubernetes service. I see that under the Activity Log of that vm (in the azure portal):

• Restart Virtual Machine, Event initiated by "ClusterServicePrincipal"

What is the best way to find out, why kubernetes restarted this node?

Thanks for your help.

Regards, Peter

Answer 1

Check logs of Kubernetes service in Azure Portal and run AzureActivity query, this should give you the reason of the restart.

Btw. You can login to node, but there are no logs from the previous instance, so it's useless.