Simple tool to split one file with kubernetes manifests into separated ones.

Useful when you are using kustomize and you want to evaluate generated manifests after kustomize build . with OPA.

$ kustomize build <path_to_kustomization> >> build.yaml
$ kube-split-yaml split --input build.yaml --output-dir manifests
$ for i in $(ls manifests); do opa eval -d <validation_rego> -i manifests/$i data.kubernetes.admission.deny --format=pretty; done

1. Install

   $ go get -v github.com/borisputerka/kube-split-yaml
   

2. Use plugin

   $ kube-split-yaml split --input <input_file> --output-dir <output_dir>
   

By default kube-split-yaml splits each kubernetes resource from input file into separated file in format:

{{.kind}}-{{.apiVersion}}-{{.metadata.namespace}}-{{.metadata.name}}.yaml

Here are flags that can be used with split command: