Cloud-Native Microservices With Kubernetes - 2nd Edition

Cordoning and Uncordoning Nodes

There is a command to cordon a Node manually:

kubectl cordon $NODE2

But the kubectl drain command automatically cordons the Node for you.

When the maintenance or upgrade process is complete, you need to uncordon the Node to bring it back into service:

kubectl uncordon $NODE2

You should be able to see that the Node is now in the Ready state.