"Fluent Bit is an open source and multi-platform Log Forwarder which allows you to collect data/logs from different sources, unify and send them to multiple destinations."
The container-fluent-bit repo contains a Dockerfile (and Jenkinsfile) to build (and test) the fluent-bit container.
This container is used by the chart-fluent-bit repo, and is used as part of chart-logging logging solution. See the chart repo for information on installing and configuring Fluent Bit on Kubernetes. The fluent-bit.conf included with the container artifact is intended for debugging only.
Deployments to Kubernetes should use a ConfigMap.