Comparisons between Helm, Kustomize and Kapitan usually compare features.

This one compares output. The

example renders

the same small app with all three tools, and ./check fails unless the

manifests match for each environment. Every number below comes from that

directory.

The app

Two services in namespace shop : web and api . Each has a Deployment, a

ClusterIP Service and a ConfigMap mounted into the pod. Pods run with the

restricted Pod Security profile. The environments differ in these values:

dev prod

web image tag 1.5.0-rc.1 1.4.2

web replicas, requests 1, 50m/64Mi 3, 250m/256Mi

api image tag 2.0.0-rc.3 1.9.1

api replicas, requests 1, 50m/64Mi 2, 500m/512Mi

log level debug info

PodDisruptionBudget none web and api

The api reads the web URL from its ConfigMap, web_url:

http://web.shop.svc:80 . That value matters later.

The Helm side is one generic chart rendered once per app with a base and an

environment values file.…