Logstash for Data Ingestion

Welcome to Logstash! It's a powerful, open-source data collection engine with real-time pipelining capabilities. It's a key component of the Elastic Stack (ELK stack), alongside Elasticsearch and Kibana.

Think of Logstash as the 'L' in ELK. Its job is to ingest data from various sources, process it, and then send it to a 'stash' (often Elasticsearch) for storage and analysis.

Logstash works by processing data through a pipeline. This pipeline consists of three main stages:

• Input: Where data is collected from its source.
• Filter: Where data is processed, parsed, and transformed.
• Output: Where processed data is sent to its destination.

Data flows sequentially from input to filter to output, allowing for flexible and powerful data manipulation.