x-pack 설정시 client 접근 방법

1. HTTP/REST Clients

모든 요청 헤더에 아래와 같이 인증 정보 추가 

Authorization: Basic <TOKEN>    => TOKEN is base64 of username:password

* CRUL 사용시

curl --user rdeniro:taxidriver -XPUT 'localhost:9200/idx'

2.  Python Clients

from elasticsearch import Elasticsearch

# you can use RFC-1738 to specify the url

es = Elasticsearch(['https://user:secret@localhost:443'])

3. Javascript Clients

var client = new elasticsearch.Client({

  host: 'https://user:password@my-site.com:9200'

})