ELK

This post is intended to share a tool a find very usefull to store data but especially logs.

• ELK is a product containing 3 tools:
  • E : Elasticsearch
    • Big Data based on Apache lucene engine storing only json data.
    • Elasticsearch contains an API very useful to communicate with.
  • L: Logstash
    • Powerfull data gateway allowing to forward data to elasticsearch.
    • It is also an ETL that can process changes from received data before forwarding them to Elastic.
  • K: Kibana
    • Kibana is the front end part allowing:
      • To visualize data stored into elasticsearch.
      • Create dashboards.
      • Create alerts.
      • Work for developers to post data by apis request to elasticsearch.
      • To visualize metrics.
      • Manage the stack (index, policies, pipelines, roles, users, …).