ElasticSearch: Removes all shards from given node's IP

remove-es-node.sh

#!/bin/bash
set -e
if [[ $# -ne 1 ]]
then
	echo "Removes all shards from given node's IP."
	echo
	echo "$0 source_node_IP|NONE"
	exit 1
fi

NODE_IP=$1

if [[ $NODE_IP == "NONE" ]]
then
	NODE_IP=""
fi

curl -XPUT localhost:9200/_cluster/settings -d '{
  "transient" :{
      "cluster.routing.allocation.exclude._ip" : "'${NODE_IP}'"
   }
}';

echo
echo "Remember to execute the script with NONE argument after the node decommission."
echo "Otherwise new node with the same ip address will not work properly."
echo
echo "Have a nice day!"