Question
Can't schedule workloads after upgrade of Kubernetes from 1.12.7 to 1.12.8
Fortunately I don’t have mission critical services running on my cluster and now I likely never will be :)
I have started the automatic upgrade process of my DO-managed Kubernetes cluster from 1.12.7 to 1.12.8. After the upgrade of the Master control-plane went through I was expecting the worker nodes to get upgraded as well, however it somehow got stuck and the nodes are not being upgraded.
So currently I can no longer schedule new workloads as all new pods are going into the state ContainerCreating and are stuck there.
I tried to resize the node pool and this caused a new droplet to be spun up with the up-to-date Kubernetes version from DO (Debian do-kube-1.12.8-do.4). Using kubectl get nodes
I can see the old nodes still in status Ready
while the new node (even after around 30min) still shows up as NotReady
and the latest event is Kubelet starting
.
In addition all the old but still running droplets in the node pool no longer report metrics into the DO web interface.
Any idea what I can do? If nothing works I will probably have to tear down the whole cluster and set it up from scratch again. To be honest, this is very worrying to me.
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