Drain k8s node

Drain k8s node

#find node names
kubectl get no
set NODENAME=xxxxxxxxxxxxxxx

kubectl cordon $NODENAME


#check pod on node
kubectl get pods --all-namespaces --field-selector spec.nodeName=$NODENAME -o wide

#find mysql pod
kubectl get pods --all-namespaces --field-selector spec.nodeName=$NODENAME -o wide | grep mysql

#manual remove pod
kubectl -n <namespacename> delete pod <podname>

#remove stuck pods
kubectl -n <namespacename> delete pod <podname> --grace-period 0 --force

#drain node
kubectl drain $NODENAME --ignore-daemonsets

if it appear something like
```
There are pending nodes to be drained:
 $NODENAME
error: pods with local storage (use --delete-local-data to override): podname1-75ddd47ff5-hptq2, podname2-7d8cf5b448-j8bx4
```
kubectl get pods --all-namespaces --field-selector spec.nodeName=$NODENAME  -o wide | grep -E "podname1-75ddd47ff5-hptq2|podname2-7d8cf5b448-j8bx4" | awk '{print $2 " --namespace=" $1}' | xargs kubectl delete pod

#check pod on node
kubectl get pods --all-namespaces --field-selector spec.nodeName=$NODENAME -o wide