Zach Mathe

Add support for kustomize replacements when creating custom-manifest

5

Right now there doesn't seem to be support for using [replacements](https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/replacements/) when creating [custom-manifest](https://www.kubestack.com/framework/documentation/services/#custom-manifests).

### What Happened? Following the [docker on macOS](https://minikube.sigs.k8s.io/docs/handbook/registry/) instructions exactly for setting up a registry with minikube does not work. When trying to run `docker push` with my newly tagged...