Fluent Bit is a Fast and Lightweight Logs and Metrics Processor and Forwarder for Linux, OSX, Windows and BSD family operating systems. It has been made with a strong focus on performance to allow the collection of events from different sources without complexity.
Metrics Collection (Prometheus compatible)
Security: built-in TLS/SSL support
Stream Processing: Perform data selection and transformation using simple SQL queries
Create new streams of data using query results
Data analysis and prediction: Timeseries forecasting
Portable: runs on Linux, MacOS, Windows and BSD systems
Fluent Bit is a CNCF sub-project under the umbrella of Fluentd, it's licensed under the terms of the Apache License v2.0. This project was originally created by Treasure Data and is currently a vendor neutral and community driven project.