EFK
[Elasticsearch](https://www.notion.so/Elasticsearch-a1f7f4088ce84b8d98f392bbd5ada4a9?pvs=21)
[Fluentd](https://www.notion.so/Fluentd-76f65a78632b4014b496b225268bd571?pvs=21)
[Kibana](https://www.notion.so/Kibana-3cede026f0ec4d49bf4139bf9ded1de6?pvs=21)