This lab explains how to use Alibaba Cloud Elasticsearch to build an ELK log analysis platform. "ELK" is the combination of three open source tools: Elasticsearch, Logstash, and Kibana. Logstash is an ETL tool that captures log data from each machine, converts and processes the data format, and outputs the data to Elasticsearch for storage. Elasticsearch is a distributed search and analysis engine that is used for data storage and supports real-time data querying. Kibana is a data visuali