Using Log Levels in Go

Introduction #

In any application, effective logging is crucial for debugging and monitoring. When developing a Kubernetes operator, controller-runtime uses structured logging through a library called logr. This library provides a way to log messages with different verbosity levels, allowing developers to control the amount of log output based on the context (e.g., development vs. production). In this article, we’ll explore how to use different verbosity levels for logging in Go applications, particularly in the context of Kubernetes operators.