Kubernetes Kustomize

Kubernetes Kustomize is a configuration management tool that allows you to customize Kubernetes YAML files without having to rewrite or template them. Unlike tools that rely on parameterized templates, Kustomize works by layering patches, labels, and generators on top of plain YAML, making your configurations easier to manage, reuse, and adapt across environments. Whether you're deploying to development, staging, or production, Kustomize helps you build flexible and DRY (Don’t Repeat Yourself) manifests that scale with your infrastructure. This tutorial will walk you through the core concepts of Kustomize in a hands-on, beginner-friendly way—starting from the basics and working up to full environment overlays, all with practical examples.