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Two benefits:

- I already use Helm to install open source software; there are already so many Charts available. So that makes it easy to also use Helm for my own apps (I use it just for templating though)

- Helm templating language is more flexible, but that can also bite you since it can become complex. With Kustomize, changing a single environment variable value in a Deployment is quite some work compared to Helm (I don’t like JSON patching)

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> With Kustomize, changing a single environment variable value in a Deployment is quite some work compared to Helm (I don’t like JSON patching)

Config maps, enough said. I have a CD pipeline that writes environment variables to files, Kustomize eats them up and creates a configmap, environment variables in the deployment reference the config map, done.

Kapp as a layer on top of Kustomize is showing some progress. Ultimately Kustomize is like every other resource bundled with k8s, it’s a building block for higher level tooling.

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