结构化输出log
https://gquintana.github.io/2017/12/01/Structured-logging-with-SL-FJ-and-Logback.html
elk_filebeat
https://github.com/shildondu/elkstack_filebeat
filebeat 原理
https://www.cnblogs.com/wangzhuxing/p/9678578.html
es 系列博客
https://www.cnblogs.com/wangzhuxing/tag/ES/
K8s容器日志实时收集FileBeat+ES+Kibana
Filebeat 模块与配置