Problem
The Drain Node operation being performed on nodes prior to the maintenance of hypervisors results in nodes to be in a Ready, SchedulingDisabled state once the maintenance is completed.
NAME STATUS ROLES AGE VERSION
NodeName Ready,SchedulingDisabled worker 34d v1.12.9
The nodes will have NoSchedule taints on them.
Taints: node.kubernetes.io/unreachable:NoSchedule
node.kubernetes.io/unschedulable:NoSchedule
Environment
- Platform9 Managed Kubernetes - All Versions
Resolution
- Uncordon the nodes to make them schedulable again, thus resuming the procedure of scheduling pods onto it.
# kubectl uncordon <node name>