This document provides an overview of DevOps and the Elastic Stack. It defines IT operations (Ops) and describes the historical separation between development and operations teams. This led to bottlenecks and slow delivery. DevOps aims to break down barriers through practices like continuous integration, monitoring, and automation. The Elastic Stack is a suite of open source tools for logging, monitoring, and security including Elasticsearch, Kibana, Logstash, Beats, and X-Pack. It allows users to collect and analyze logs and metrics from multiple sources in real-time.