If you are using Microservice-based architecture, one of the challenges is to integrate and monitor application logs from different services and the ability to search on this data based on message string or sources, etc.
So, What Is The ELK Stack?
"ELK" is the acronym for three open source projects: Elasticsearch, Logstash, and Kibana. Elasticsearch is a search and analytics engine. Logstash is a server-side data processing pipeline that ingests data from multiple sources simultaneously, transforms it, and then sends it to a "stash" like Elasticsearch. Kibana lets users visualize data with charts and graphs in Elasticsearch.