https://github.com/elastic/logstash

https://www.elastic.co/guide/en/logstash/current/shutdown.html

test : https://grokdebug.herokuapp.com/

https://github.com/logstash/logstash-logback-encoder

logstash-logback-encoder를 통해서 Json으로(ElasticSearch 의 기본 데이터 저장 구조인) 변경하여, logstash로 전송한다.

• ELK : https://www.inflearn.com/course/elk-%EC%8A%A4%ED%83%9D-%EB%8D%B0%EC%9D%B4%ED%84%B0-%EB%B6%84%EC%84%9D#curriculum
• ELK 셋팅부터 알람까지 : https://techblog.woowahan.com/2659/