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DevOps Intermediate

What is ELK Stack?

A popular log management platform combining Elasticsearch (search), Logstash (processing), and Kibana (visualization).

The ELK Stack collects, processes, stores, and visualizes log data. Logstash (or Filebeat) collects logs from various sources, transforms them, and sends to Elasticsearch for indexing. Kibana provides dashboards and search interfaces.

Modern variants include the Elastic Stack (adding Beats for lightweight data shipping) and alternatives like Grafana Loki (log aggregation optimized for cost). ELK is the standard for centralized logging in enterprise environments.

Related Terms

Infrastructure as Code (IaC)
The practice of managing infrastructure through machine-readable configuration files rather than manual processes.
Configuration Management
The practice of systematically managing and maintaining consistent server configurations across infrastructure.
Artifact Repository
A centralized storage system for build artifacts like compiled binaries, packages, and container images used in CI/CD pipelines.
Incident Management
The process of detecting, responding to, and resolving service disruptions to minimize impact and restore normal operations.
SRE (Site Reliability Engineering)
An engineering discipline that applies software engineering principles to infrastructure and operations to create reliable systems.
Infrastructure Drift
The divergence between the actual state of infrastructure and its defined desired state, caused by manual changes or untracked modifications.
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