In this guide, we will delve into configuring Docker tags and retention policies for local repositories. Whether setting the maximum tags greater than retention or vice versa, this guide will provide practical examples to demonstrate the implications of each configuration. By default, Max Unique Tags is set to zero (0) and Tag Retention is set to one (1). In order to activate it, we will implement higher values so that it will then apply FIFO (first in, first out) logic.