Auto-remove Node that is NotReady from Kubernetes cluster

Auto-remove-Node-that-isNotReady-from-Kubernetes-cluster.sh

#!/bin/bash
# Get the list of nodes in the Kubernetes cluster
nodes=$(kubectl get node)

# Filter the nodes that are NotReady and not control-plane
notready=$(echo "$nodes" | awk '$2 == "NotReady" && $3!="control-plane" {print $1}')

# Check if there are any nodes that are NotReady and not control-plane
if [[ -n "$notready" ]]; then
  # If there are, delete those nodes
  echo "The following nodes are NotReady and not control-plane, deleting them:"
  echo "$notready"
  kubectl delete node $notready

  # Optionally, restart the coredns deployment in the kube-system namespace
  echo "Restarting coredns deployment in kube-system namespace..."
  kubectl -n kube-system rollout restart deployment coredns
fi