reindex-script

#!/bin/bash

source_cluster=es-eks.npe-estest-euw1.euw1.rms-npe-internal.com
target_cluster=es-eks2.npe-estest-euw1.euw1.rms-npe-internal.com

# We need to set reindex.remote.whitelist in elasticsearch.yml on the new cluster
# reindex.remote.whitelist: oldhost:9200

indexes=$(http -a elastic:xxxxxxx http://${source_cluster}/_cat/indices | awk '/green/ { print $3 }')


function listIndexes {
  http -a elastic:xxxxxx http://${source_cluster}/_cat/indices 
}


function reindex { 
  listIndexes
  sleep 5; 
  for index in ${indexes};
    do
      http -a elastic:g2nZchOBhyJ78YviR7Rr POST ${target_cluster}/_reindex?wait_for_completion=false <<< \
        '{ "source": 
            { 
              "remote": 
              {  
                "host": "'http://${source_cluster}:80'", 
                "username": "elastic", 
                "password": "xxxxxxxxxx" 
              }, 
              "index": "'$index'" 
            }, 
          "dest": 
          { 
            "index": "'$index'-reindexed-rod" 
          } 
        }'
  done
}

reindex