A Docker image to run standalone Kubernetes kustomize as a Docker container.
To generate Kubernetes objects, start a container with a volume pointing at a directory containing your Kustomize files and mount it into /workdir/ in the container. kustomize is container's entrypoint, so it's enough to pass a command build and a directory to build.
For example, having the following structure:
./k8s/
├── base/
│ ├── app.config.yaml
│ ├── deployment.yaml
│ └── kustomization.yaml
└── overlays/
├── local/
│ ├── app.config.yaml
│ └── kustomization.yaml
├── prod-eu/
│ ├── app.config.yaml
│ ├── deployment-patch.yaml
│ └── kustomization.yaml
├── prod-us/
│ ├── app.config.yaml
│ ├── deployment-patch.yaml
│ └── kustomization.yaml
└── staging/
├── app.config.yaml
├── deployment-patch.yaml
└── kustomization.yaml
It is possible to generate Kubernetes objects for staging like this:
$ docker run -it --rm \
-v /path/to/k8s:/workdir \
adambabik/kustomize \
build overlays/staging
The generated Kubernetes configuration will be printed o stdout which can be saved to a file or piped to kubectl: | kubectl apply -f -.
MIT