Fluent Bit is a lightweight, open-source log shipper and processor, designed to work alongside Fluentd in log processing architectures, particularly in cloud-native environments like Docker and Kubernetes. Written in C, Fluent Bit is notable for its minimal resource requirements, consuming only 450KB, making it suitable for deployment on small systems such as IoT devices. Unlike Fluentd, which requires Ruby gems, Fluent Bit operates without dependencies and is optimized for cloud-native use. The article outlines steps for installing Fluent Bit, configuring it to ship logs to Elasticsearch or Logz.io, and compares its functionality to Fluentd, emphasizing its performance and adaptability. Fluent Bit's configuration is managed through a configuration file with sections for service, input, filter, and output settings. The piece also highlights the complementary use of Fluent Bit and Fluentd in logging pipelines, drawing parallels to the relationship between Beats and Logstash in the ELK Stack.