elasticsearch reindex from remote host example

elsticsearch_reindex_example.sh

# show indices on this host
curl 'localhost:9200/_cat/indices?v'

# edit elasticsearch configuration file to allow remote indexing
sudo vi /etc/elasticsearch/elasticsearch.yml

## copy the line below somewhere in the file
>>>
# --- whitelist for remote indexing ---
reindex.remote.whitelist: my-remote-machine.my-domain.com:9200
<<<

# restart elaticsearch service
sudo systemctl restart elasticsearch

# run reindex from remote machine to copy the index named filebeat-2016.12.01
curl -XPOST 127.0.0.1:9200/_reindex?pretty -d'{
  "source": {
    "remote": {
      "host": "http://my-remote-machine.my-domain.com:9200"
    },
    "index": "filebeat-2016.12.01"
  },
  "dest": {
    "index": "filebeat-2016.12.01"
  }
}'

# verify index has been copied
curl 'localhost:9200/_cat/indices?v'