Template-Free Configuration Customization with Kustomize (Kubernetes Native Configuration Management)

kustomize.io Kustomize introduces a template-free way to customize application configuration that simplifies the use of off-the-shelf applications. Now, built into kubectl as apply -k.
kubernetes.io: Introducing kustomize; Template-free Configuration Customization for Kubernetes If you run a Kubernetes environment, chances are you’ve customized a Kubernetes configuration — you've copied some API object YAML files and edited them to suit your needs. But there are drawbacks to this approach — it can be hard to go back to the source material and incorporate any improvements that were made to it. Today Google is announcing kustomize, a command-line tool contributed as a subproject of SIG-CLI. The tool provides a new, purely declarative approach to configuration customization that adheres to and leverages the familiar and carefully designed Kubernetes API.
Declarative Management of Kubernetes Objects Using Kustomize