EKL中文社区 https://elasticsearch.cn/
https://github.com/elastic/beats
中文 http://cwiki.apachecn.org/pages/viewpage.action?pageId=8159438#app-switcher
https://yq.aliyun.com/articles/3228
https://yq.aliyun.com/articles/3228#4
https://yq.aliyun.com/articles/251629?spm=5176.100239.blogcont3228.17.dM5XMR
https://www.alibabacloud.com/help/zh/doc-detail/28982.htm?spm=a3c0i.o29007zh.b99.38.7a6e8687a03NaQ
http://logtail-release.oss-cn-hangzhou.aliyuncs.com/linux64/logtail-linux64.tar.gz